21 inch CRT color TV - Haier 21T5A - Schematic - Used ICs: AN7821A/AN7522N – TDA9859 – TDA9850 – BU4052 – LA78040 - KA5Q765RT
[STR] in SMPS
Circuit diagram [Click on the circuit diagram to magnify]
Monday, August 22, 2016
Thursday, August 18, 2016
Sharp LC32X20 – Sharp LC37X20 – How to enter service mode – firmware update – Hotel mode – SMPS circuit diagram
How to enter Adjustment mode (Service Mode), How to update the firmware, How to adjust the Hotel mode, How to adjust the Lamp error, Hotel mode adjustments, Power supply circuit diagram and PWB - SHARP LC32X20E/S/RU - LC37X20E/S/RU
Lamp
error detection
1. Function
This LCD color TV set incorporates a lamp error detection feature that automatically turns off the power for safety under abnormal lamp or lamp circuit conditions. If by any chance anything is wrong with the lamp or lamp circuit or if the lamp error detection feature is activated for some reason, the following will result.
1) The power is interrupted in about 6 seconds after it is turned on. (The power LED on the front of the TV set turns red from green and keeps blinking in red: ON for 250 ms and OFF for 1 sec.).
2) If the above phenomenon 1) occurs 5 times consecutively, it becomes impossible to turn on the power. (The power LED remained red).
2. Measures
1) Checking with lamp error detection OFF
Enter the adjustment process mode, referring to 1. Entering and exiting the adjustment process mode. If there is a problem with the lamp or lamp circuit, the lamp will go out. (The power LED is green.) Then, you can check the operation to see if the lamp and lamp circuit are in trouble.
After
the lamp and lamp circuit are found out of trouble, reset the lamp error count.
If a lamp error is detected five consecutive times, the power cannot be turned
on. Using the cursor (UP/DOWN) key, move to the cursor to [LAMP ERROR RESET],
Line 8 on adjustment process mode. With the cursor (LEFT/RIGHT) keys, select
the [LAMP ERROR RESET] value. Finally press the cursor (OK) keys to reset the
value to “0”.1. Function
This LCD color TV set incorporates a lamp error detection feature that automatically turns off the power for safety under abnormal lamp or lamp circuit conditions. If by any chance anything is wrong with the lamp or lamp circuit or if the lamp error detection feature is activated for some reason, the following will result.
1) The power is interrupted in about 6 seconds after it is turned on. (The power LED on the front of the TV set turns red from green and keeps blinking in red: ON for 250 ms and OFF for 1 sec.).
2) If the above phenomenon 1) occurs 5 times consecutively, it becomes impossible to turn on the power. (The power LED remained red).
2. Measures
1) Checking with lamp error detection OFF
Enter the adjustment process mode, referring to 1. Entering and exiting the adjustment process mode. If there is a problem with the lamp or lamp circuit, the lamp will go out. (The power LED is green.) Then, you can check the operation to see if the lamp and lamp circuit are in trouble.
Entering
and exiting the adjustment process mode [Service Mode]
1. Press
the “POWER” key on the set of running TV set to force off the power.
2. While holding down the “VOL (-)” and “INPUT” keys on the set at once, plug in the AC power cord to turn on the power. The letter “K” appears on the screen.
3. Next, hold down the “VOL (-)” and “P (V)” keys on the set at once. Multiple lines of character string appearing on the screen indicate that the set is now in the adjustment Process mode. If you fail to enter the adjustment process mode (the display is the same as normal startup), retry the procedure. (Another procedure)
4. Press the “MENU” key on the main unit to display OSD.
5. Move the cursor to SERVICE (OSD) using the cursor keys on the remote control. Then press the “MENU” key on the remote control to enter the service mode (adjustment process mode).
6. To exit the adjustment process mode after the adjustment is done, unplug the AC power cord to force off the power. (When the power is turned off with the remote controller, once unplug the AC power cord and plug it in again. In this case, wait 10 seconds or so before plugging.)
2. While holding down the “VOL (-)” and “INPUT” keys on the set at once, plug in the AC power cord to turn on the power. The letter “K” appears on the screen.
3. Next, hold down the “VOL (-)” and “P (V)” keys on the set at once. Multiple lines of character string appearing on the screen indicate that the set is now in the adjustment Process mode. If you fail to enter the adjustment process mode (the display is the same as normal startup), retry the procedure. (Another procedure)
4. Press the “MENU” key on the main unit to display OSD.
5. Move the cursor to SERVICE (OSD) using the cursor keys on the remote control. Then press the “MENU” key on the remote control to enter the service mode (adjustment process mode).
6. To exit the adjustment process mode after the adjustment is done, unplug the AC power cord to force off the power. (When the power is turned off with the remote controller, once unplug the AC power cord and plug it in again. In this case, wait 10 seconds or so before plugging.)
[Use
due care in handling the information described here lest the users should know
how to enter the adjustment process mode. If the settings are tampered with in
this mode, unrecoverable system damage may result.]
Remote controller key operation and description of display in adjustment process mode.
Description of display
SMPS schematic and PWB
Public
Mode (Hotel Mode)
Starting the Public Mode
> There are two following ways to display the PUBLIC Mode setting screen.
1) On the process adjustment mode screen, set the “HOTEL MODE” Flag to ON. Turn off the power, and turn it on again, pressing the and keys of the main unit at the same time.
2) Enter the Pass Word, and start the unit.
a) Turn on the power, pressing the and keys of the main unit at the same time.
b) Display the Pass Word input screen.
Starting the Public Mode
> There are two following ways to display the PUBLIC Mode setting screen.
1) On the process adjustment mode screen, set the “HOTEL MODE” Flag to ON. Turn off the power, and turn it on again, pressing the and keys of the main unit at the same time.
2) Enter the Pass Word, and start the unit.
a) Turn on the power, pressing the and keys of the main unit at the same time.
b) Display the Pass Word input screen.
Operation
procedure
• The initial input position is the digit at the left end.
• For the numeric keys to of R/C, key input is accepted. Input of the other keys is prohibited.
• Change “-” to “*” by inputting the numeric key at the input position, and shift the input position rightward one digit.
• When three digits are completely input, the Pass Word is judged.
c) Check the Pass Word by inputting three digits.
• The initial input position is the digit at the left end.
• For the numeric keys to of R/C, key input is accepted. Input of the other keys is prohibited.
• Change “-” to “*” by inputting the numeric key at the input position, and shift the input position rightward one digit.
• When three digits are completely input, the Pass Word is judged.
c) Check the Pass Word by inputting three digits.
If
the Pass Word is 0,2,7 it shifts to the PUBLIC Mode setting screen.
In another case, the screen is erased, and it operates in the ordinary mode.
In another case, the screen is erased, and it operates in the ordinary mode.
Exiting
the Public Mode screen
• There are two following ways to exit the Public Mode setting screen.
1) Turn off the power.
2) Select “Execution” in the PUBLIC_Mode to execute it.
Activate the restart under the set content. Here, the START input SOURCE setting is excluded since this item is referred to only when the power is turned on.
3. Set value of the Public Mode
• Each set value in the PUBLIC Mode is initialized when the factory setting is applied.
(The setting of the PUBLIC MODE Flag in the process adjustment mode screen is not changed.)
• There are two following ways to exit the Public Mode setting screen.
1) Turn off the power.
2) Select “Execution” in the PUBLIC_Mode to execute it.
Activate the restart under the set content. Here, the START input SOURCE setting is excluded since this item is referred to only when the power is turned on.
3. Set value of the Public Mode
• Each set value in the PUBLIC Mode is initialized when the factory setting is applied.
(The setting of the PUBLIC MODE Flag in the process adjustment mode screen is not changed.)
Upgrading
the software
1. Turn off the AC power (Unplug the AC power cord).
2. Insert the upgrading USB flash memory for upgrade into the service slot.
3. While holding down the power button, plug in the AC power cord of the main unit to turn on the power.
4. Upgrade begins automatically.
After the set starts, the upgrade screen will be displayed.
1. Turn off the AC power (Unplug the AC power cord).
2. Insert the upgrading USB flash memory for upgrade into the service slot.
3. While holding down the power button, plug in the AC power cord of the main unit to turn on the power.
4. Upgrade begins automatically.
After the set starts, the upgrade screen will be displayed.
5.
If any of the procedures fails, the following upgrade failure screen shows up.
For the failing procedure, the “NG” marking turns red.
NOTE: In such case, try to upgrade the software again. If it still fails, the hardware may be in trouble.
NOTE: In such case, try to upgrade the software again. If it still fails, the hardware may be in trouble.
6.
When all the procedures are complete, the following upgrade success screen
shows up. The new software version can be confirmed on screen.
The version number appears when each item has been successfully upgraded. Finally the main version number appears on screen.
The version number appears when each item has been successfully upgraded. Finally the main version number appears on screen.
7.
Turn off the AC power (Unplug the AC power cord). Take out the upgrading USB
flash memory.
8. Now the software has been upgraded.
NOTE: Then get the set started and call the process adjustment screen 1/33 to check the main software version.
CAUTION
1) Do not take out and put in the USB flash memory during formatting.
2) It takes about one minute to the rewriting completion.
Confirm the upgrade status on the screen becomes 100%.
8. Now the software has been upgraded.
NOTE: Then get the set started and call the process adjustment screen 1/33 to check the main software version.
CAUTION
1) Do not take out and put in the USB flash memory during formatting.
2) It takes about one minute to the rewriting completion.
Confirm the upgrade status on the screen becomes 100%.
Wednesday, August 17, 2016
TCL LCD32B67 How to enter service mode – adjustments – SMPS and Audio Output schematic
TCL LCD32B67 SERIES LCD TV MONITOR – Factory mode – Adjustments - SMPS
ADPF24180A2, Power, LVDS and Audio Output circuit diagram
How to enter Service Mode (Factory Mode)Press Number key 100 > 9 > 9 > 9 will into the factory mode.
Press the Menu key.
The OSD will show menu and a word F at Right top of Menu.
Service
mode adjustments
WHITE-BALANCE,
LUMINANCE ADJUSTMENT
Approximately
30 minutes should be allowed for warm up before proceeding white balance adjustment.
Before started adjust white balance ,please setting the Chroma-7120 MEM. Channel 1 to 9300 color, MEM. channel 2 to 6500 color, MEM. channel 3 to 11000 color,and MEM. channel 4 to 9300 color, ( our 9300 parameter is x = 283 ± 20, y = 297 ± 20, Y = 350 ± 7 cd/m2 ; 6500 parameter is x = 313 ± 20, y = 329 ± 20, Y = 350± 7 cd/m2 ; 11000 parameter is x = 274 ± 20, y = 286 ± 20, Y = 460 ± 7 cd/m2 ;9300 parameter is x = 283 ± 20, y = 297 ± 20, Y = 460 ± 7 cd/m2;7000 parameter is x = 305 ± 20, y = 320 ± 20, Y = 460 ± 7 cd/m2 )
Before started adjust white balance ,please setting the Chroma-7120 MEM. Channel 1 to 9300 color, MEM. channel 2 to 6500 color, MEM. channel 3 to 11000 color,and MEM. channel 4 to 9300 color, ( our 9300 parameter is x = 283 ± 20, y = 297 ± 20, Y = 350 ± 7 cd/m2 ; 6500 parameter is x = 313 ± 20, y = 329 ± 20, Y = 350± 7 cd/m2 ; 11000 parameter is x = 274 ± 20, y = 286 ± 20, Y = 460 ± 7 cd/m2 ;9300 parameter is x = 283 ± 20, y = 297 ± 20, Y = 460 ± 7 cd/m2;7000 parameter is x = 305 ± 20, y = 320 ± 20, Y = 460 ± 7 cd/m2 )
How
to setting MEM.channel you can reference to Chroma-7120 user guide or simple
use “ SC” key and “ NEXT” key to modify x,y,Y value and use “ID” key to modify
the TEXT description
Following is the procedure to do white-balance adjust.
Press Number key 100 9 9 9 will into the factory mode, and press Menu
key the OSD will show menu and a
word F at Right top of Menu.
In the factory mode select MORE function will into Bias and Gain adjustment.
word F at Right top of Menu.
In the factory mode select MORE function will into Bias and Gain adjustment.
1.
ADC Adjustment:
AL > Auto level adjust.
RG, GG, BG > R, G, B Gain adjust.
RB, GB, BB > R, G, B Bias adjust.
2. SCALER Adjustment:
CO, BR > Contrast and Brightness adjust.
RG, GG, BG > R, G, B Gain adjust.
RB, GB, BB > R, G, B Bias adjust.
S9, S6, ST , SH > Save 9300, 6500, 9300 color temperature.
R9, R6, RT , RH > Recall 9300, 6500, 9300 color temperature.
BI > Setup Burn-in mode ON / OFF .
ISP > Set ISP ON/OFF .
PP > Set PIP ON/OFF .
WH > Set Wireless Headphone ON/OFF .
SR > Set SRS ON/OFF.
CC > Set Close Caption ON/OFF.
VC > Set V Chip ON/OFF.
EX > Exit MORE function to factory mode menu.
AL > Auto level adjust.
RG, GG, BG > R, G, B Gain adjust.
RB, GB, BB > R, G, B Bias adjust.
2. SCALER Adjustment:
CO, BR > Contrast and Brightness adjust.
RG, GG, BG > R, G, B Gain adjust.
RB, GB, BB > R, G, B Bias adjust.
S9, S6, ST , SH > Save 9300, 6500, 9300 color temperature.
R9, R6, RT , RH > Recall 9300, 6500, 9300 color temperature.
BI > Setup Burn-in mode ON / OFF .
ISP > Set ISP ON/OFF .
PP > Set PIP ON/OFF .
WH > Set Wireless Headphone ON/OFF .
SR > Set SRS ON/OFF.
CC > Set Close Caption ON/OFF.
VC > Set V Chip ON/OFF.
EX > Exit MORE function to factory mode menu.
SMPS ADPF24180A2 schematic
Power
LVDS
Audio output
1. Press “ AUTO” button ,
2. Set the contrast on OSD window to the value=51 , color (user )R,G,B set to “50”
3. adjust the brightness on OSD until chroma 7120 measurement reach the value Y>390 cd/m2
Gain
adjustment
A. Adjust 9300 color-temperature
1. Set the Contrast of OSD function to 45 and Adjust Brightness to chroma-7120 Y>390 cd/m2
2. Switch the chroma-7120 to RGB-mode (with press “MODE” button )
3. Switch the MEM.channel to Channel 01 ( with up or down arrow on chroma-7120 )
4. The LCD-indicator on chroma-7120 will show x = 283 ± 20, y = 297 ±20, Y = 350 ± 7 cd/m2
5. Adjust the Color (user) Mode: RED on OSD window, until chroma 7120 indicator reached the value R=100
6. Adjust the Color (user) Mode: GREEN on OSD window, until chroma-7120 indicator reached the value G=100
7. Adjust the Color (user) Mode: BLUE on OSD window, until chroma-7120 indicator reached the value B=100
8. Repeat above procedure (Item 5, 6, 7) until chroma-7120 RGB value meet the tolerance =100±2
9. Switch the chroma-7120 to xyY mode with press “MODE” button
10. Press Color (9300) on OSD window to save the adjustment result.
B.
Adjust 6500 color-temperatureA. Adjust 9300 color-temperature
1. Set the Contrast of OSD function to 45 and Adjust Brightness to chroma-7120 Y>390 cd/m2
2. Switch the chroma-7120 to RGB-mode (with press “MODE” button )
3. Switch the MEM.channel to Channel 01 ( with up or down arrow on chroma-7120 )
4. The LCD-indicator on chroma-7120 will show x = 283 ± 20, y = 297 ±20, Y = 350 ± 7 cd/m2
5. Adjust the Color (user) Mode: RED on OSD window, until chroma 7120 indicator reached the value R=100
6. Adjust the Color (user) Mode: GREEN on OSD window, until chroma-7120 indicator reached the value G=100
7. Adjust the Color (user) Mode: BLUE on OSD window, until chroma-7120 indicator reached the value B=100
8. Repeat above procedure (Item 5, 6, 7) until chroma-7120 RGB value meet the tolerance =100±2
9. Switch the chroma-7120 to xyY mode with press “MODE” button
10. Press Color (9300) on OSD window to save the adjustment result.
1. Set the Contrast of OSD function to 45 and Adjust Brightness to chroma-7120
Y>390 cd/m2
2. Switch the chroma-7120 to RGB-mode (with press “MODE” button )
3. Switch the MEM.channel to Channel 02 (with up or down arrow on chroma-7120 )
4. The LCD indicator on chroma-7120 will show x = 313 ± 20 y = 329 ± 20, Y = 350 ± 7 cd/m2
5. Adjust the Color (user)Mode: RED on OSD window, until chroma 7120 indicator reached the value R=100
6. Adjust the Color (user)Mode: GREEN on OSD window, until chroma-7120 indicator reached the value G=100
7. Adjust the Color (user)Mode: BLUE on OSD window, until chroma-7120 indicator reached the value B=100
8. Repeat above procedure ( item 5,6,7) until chroma-7120 RGB value meet the tolerance =100 ± 2
9. Switch the chroma-7120 to xyY mode with press “MODE” button
10. Press Color (6500) on OSD window to save the adjustment result.
2. Switch the chroma-7120 to RGB-mode (with press “MODE” button )
3. Switch the MEM.channel to Channel 02 (with up or down arrow on chroma-7120 )
4. The LCD indicator on chroma-7120 will show x = 313 ± 20 y = 329 ± 20, Y = 350 ± 7 cd/m2
5. Adjust the Color (user)Mode: RED on OSD window, until chroma 7120 indicator reached the value R=100
6. Adjust the Color (user)Mode: GREEN on OSD window, until chroma-7120 indicator reached the value G=100
7. Adjust the Color (user)Mode: BLUE on OSD window, until chroma-7120 indicator reached the value B=100
8. Repeat above procedure ( item 5,6,7) until chroma-7120 RGB value meet the tolerance =100 ± 2
9. Switch the chroma-7120 to xyY mode with press “MODE” button
10. Press Color (6500) on OSD window to save the adjustment result.
C.
Adjust 11000 color-temperature
1. Set the Contrast of OSD function to 45 and Adjust Brightness to chroma-7120 Y>390 cd/m2
2. Switch the chroma-7120 to AV-mode (with press “MODE” button)
3. Switch the MEM.channel to Channel 03 ( with up or down arrow on chroma-7120 )
4. The lcd-indicator on chroma-7120 will show x = 274± 20, y = 286 ± 20, Y = 460 ± 7 cd/m2
5. Adjust the Color (user) Mode: RED on OSD window, until chroma 7120 indicator reached the value R=100
6. Adjust the Color (user) Mode: GREEN on OSD window, until chroma-7120 indicator reached the value G=100
7. Adjust the Color (user) Mode: BLUE on OSD window, until chroma-7120 indicator reached the value B=100
8. Repeat above procedure ( item 5,6,7) until chroma-7120 RGB value meet the tolerance =100 ± 2
9. Switch the chroma-7120 to xyY mode with press “MODE” button
10. Press Color (11000) on OSD window to save the adjustment result.
1. Set the Contrast of OSD function to 45 and Adjust Brightness to chroma-7120 Y>390 cd/m2
2. Switch the chroma-7120 to AV-mode (with press “MODE” button)
3. Switch the MEM.channel to Channel 03 ( with up or down arrow on chroma-7120 )
4. The lcd-indicator on chroma-7120 will show x = 274± 20, y = 286 ± 20, Y = 460 ± 7 cd/m2
5. Adjust the Color (user) Mode: RED on OSD window, until chroma 7120 indicator reached the value R=100
6. Adjust the Color (user) Mode: GREEN on OSD window, until chroma-7120 indicator reached the value G=100
7. Adjust the Color (user) Mode: BLUE on OSD window, until chroma-7120 indicator reached the value B=100
8. Repeat above procedure ( item 5,6,7) until chroma-7120 RGB value meet the tolerance =100 ± 2
9. Switch the chroma-7120 to xyY mode with press “MODE” button
10. Press Color (11000) on OSD window to save the adjustment result.
D.
Adjust 9300 color-temperature
1. Set the Contrast of OSD function to 45 and Adjust Brightness to chroma-7120 Y>390 cd/m2
2. Switch the chroma-7120 to AV-mode (with press “MODE” button)
3. Switch the MEM.channel to Channel 04 ( with up or down arrow on chroma-7120 )
4. The LCD indicator on chroma-7120 will show x = 283 ± 20, y = 297 ± 20, Y = 460 ± 7 cd/m2
5. Adjust the Color (user) Mode: RED on OSD window, until chroma 7120 indicator reached the value R=100
6. Adjust the Color (user) Mode: GREEN on OSD window, until chroma-7120 indicator reached the value G=100
7. Adjust the Color (user) Mode: BLUE on OSD window, until chroma-7120 indicator reached the value B=100
8. Repeat above procedure (item 5, 6, 7) until chroma-7120 RGB value meet the tolerance =100 ± 2
9. Switch the chroma-7120 to xyY mode with press “MODE” button
10. Press Color (9300) on OSD window to save the adjustment result.
1. Set the Contrast of OSD function to 45 and Adjust Brightness to chroma-7120 Y>390 cd/m2
2. Switch the chroma-7120 to AV-mode (with press “MODE” button)
3. Switch the MEM.channel to Channel 04 ( with up or down arrow on chroma-7120 )
4. The LCD indicator on chroma-7120 will show x = 283 ± 20, y = 297 ± 20, Y = 460 ± 7 cd/m2
5. Adjust the Color (user) Mode: RED on OSD window, until chroma 7120 indicator reached the value R=100
6. Adjust the Color (user) Mode: GREEN on OSD window, until chroma-7120 indicator reached the value G=100
7. Adjust the Color (user) Mode: BLUE on OSD window, until chroma-7120 indicator reached the value B=100
8. Repeat above procedure (item 5, 6, 7) until chroma-7120 RGB value meet the tolerance =100 ± 2
9. Switch the chroma-7120 to xyY mode with press “MODE” button
10. Press Color (9300) on OSD window to save the adjustment result.
E.
Adjust 7000 color-temperature
1. Set the Contrast of OSD function to 45 and Adjust Brightness to chroma-7120 Y>470 cd/m2
2. Switch the chroma-7120 to AV-mode (with press “MODE” button )
3. Switch the MEM.channel to Channel 05 ( with up or down arrow on chroma-7120 )
4. The LCD indicator on chroma-7120 will show x = 305 ± 20, y = 320 ± 20, Y = 460 ± 7 cd/m2
5. Adjust the Color (user) Mode: RED on OSD window, until chroma 7120 indicator reached the value R=100
6. Adjust the Color (user) Mode: GREEN on OSD window, until chroma-7120 indicator reached the value G=100
7. Adjust the Color (user) Mode: BLUE on OSD window, until chroma-7120 indicator reached the value B=100
8. Repeat above procedure (item 5, 6, 7) until chroma-7120 RGB value meet the tolerance =100 ± 2
9. Switch the chroma-7120 to xyY mode with press “MODE” button
10. Press Color (7000) on OSD window to save the adjustment result.
Turn the POWER-button off to on to quit from factory mode ( in USER-mode, the OSD window location was placed at middle of screen)
1. Set the Contrast of OSD function to 45 and Adjust Brightness to chroma-7120 Y>470 cd/m2
2. Switch the chroma-7120 to AV-mode (with press “MODE” button )
3. Switch the MEM.channel to Channel 05 ( with up or down arrow on chroma-7120 )
4. The LCD indicator on chroma-7120 will show x = 305 ± 20, y = 320 ± 20, Y = 460 ± 7 cd/m2
5. Adjust the Color (user) Mode: RED on OSD window, until chroma 7120 indicator reached the value R=100
6. Adjust the Color (user) Mode: GREEN on OSD window, until chroma-7120 indicator reached the value G=100
7. Adjust the Color (user) Mode: BLUE on OSD window, until chroma-7120 indicator reached the value B=100
8. Repeat above procedure (item 5, 6, 7) until chroma-7120 RGB value meet the tolerance =100 ± 2
9. Switch the chroma-7120 to xyY mode with press “MODE” button
10. Press Color (7000) on OSD window to save the adjustment result.
Turn the POWER-button off to on to quit from factory mode ( in USER-mode, the OSD window location was placed at middle of screen)
Sharp 21VR70MM Service mode – adjustments – Schematic COLOUR TELEVISION
SERVICE MODE
1. Service mode is entered by SERVICE key input or CH-UP +VOL-DOWN input during reset.
2. Service mode is cleared by entering SERVICE key command during service mode.
3. If key input port (SERVICE) input is LOW, then it is in service mode.
4. During key input port (SERVICE) input is LOW, clearing service mode by key input SERVICE is disabled.
5. Service mode can be switched to 4 modes as follows by key input MENU.
6. AFT processing is disabled during service mode. PLL setting data is set to fo data.
7. All user data are set to default during service mode. FAO and SPEAKER user settings are off and on respectively in service mode. Energy Save is off.
8. Sleep timer, View timer, on timer and off timer are inactivated in Service mode.
9. Sound is muting in service mode except at Adjustment Items V20, M01, M03, M04, M05, and M06.
SELF ADJUSTMENT
H-VCO
1. When there is H-VCO self-adjustment key input for adjustment item H-VCO, self-adjustment is performed.
2. H-FREE(1chip) is set to 1.
3. H-OUT is set by intelligent monitor output.
4. IM input is set as TIM input.
5. H-VCO(1chip) data is changed so that the number of input pulse is 125 inside 8ms interval.
6. When adjustment completed, OSD display and H-VCO self-adjustment status data of EEPROM are updated.
7. H-FREE(1chip), intelligent monitor output and IM input mode are recovered.
RF-AGC
1. When there is RF-AGC self-adjustment key input for adjustment item RF-AGC, self-adjustment is performed.
2. AGC-OUT is set by intelligent monitor output.
3. IM input is set as AD input.
4. By decreasing RF-AGC (1chip) data from current RF-AGC adjustment value to 0, AFT input voltage becomes the
maximum setting value.
5. Increase RF-AGC(1chip) data, when AFT input voltage is at (max. 0.3V) point, adjustment is completed.
6. When adjustment completed, OSD display and RF-AGC self-adjustment status data of EEPROM are updated.
7. Intelligent monitor output and IM input mode are recovered.
PIF-VCO
1. When there is PIF-VCO self-adjustment key input for adjustment item PIF-VCO, self-adjustment is performed.
2. VIF-DEF(1chip) is set to 1.
3. AFC is set by intelligent monitor output.
4. IM input is set as AD input.
5. VIF-VCO(1chip) data is changed so that input voltage becomes 2.5V.
6. When adjustment completed, OSD display and PIF-VCO self-adjustment status data of EEPROM are updated.
7. VIF-DEF(1chip), intelligent monitor output and IM input mode are recovered.
1. Service mode is entered by SERVICE key input or CH-UP +VOL-DOWN input during reset.
2. Service mode is cleared by entering SERVICE key command during service mode.
3. If key input port (SERVICE) input is LOW, then it is in service mode.
4. During key input port (SERVICE) input is LOW, clearing service mode by key input SERVICE is disabled.
5. Service mode can be switched to 4 modes as follows by key input MENU.
6. AFT processing is disabled during service mode. PLL setting data is set to fo data.
7. All user data are set to default during service mode. FAO and SPEAKER user settings are off and on respectively in service mode. Energy Save is off.
8. Sleep timer, View timer, on timer and off timer are inactivated in Service mode.
9. Sound is muting in service mode except at Adjustment Items V20, M01, M03, M04, M05, and M06.
Click on the pictures to magnify
Circuit diagram
H-VCO
1. When there is H-VCO self-adjustment key input for adjustment item H-VCO, self-adjustment is performed.
2. H-FREE(1chip) is set to 1.
3. H-OUT is set by intelligent monitor output.
4. IM input is set as TIM input.
5. H-VCO(1chip) data is changed so that the number of input pulse is 125 inside 8ms interval.
6. When adjustment completed, OSD display and H-VCO self-adjustment status data of EEPROM are updated.
7. H-FREE(1chip), intelligent monitor output and IM input mode are recovered.
RF-AGC
1. When there is RF-AGC self-adjustment key input for adjustment item RF-AGC, self-adjustment is performed.
2. AGC-OUT is set by intelligent monitor output.
3. IM input is set as AD input.
4. By decreasing RF-AGC (1chip) data from current RF-AGC adjustment value to 0, AFT input voltage becomes the
maximum setting value.
5. Increase RF-AGC(1chip) data, when AFT input voltage is at (max. 0.3V) point, adjustment is completed.
6. When adjustment completed, OSD display and RF-AGC self-adjustment status data of EEPROM are updated.
7. Intelligent monitor output and IM input mode are recovered.
PIF-VCO
1. When there is PIF-VCO self-adjustment key input for adjustment item PIF-VCO, self-adjustment is performed.
2. VIF-DEF(1chip) is set to 1.
3. AFC is set by intelligent monitor output.
4. IM input is set as AD input.
5. VIF-VCO(1chip) data is changed so that input voltage becomes 2.5V.
6. When adjustment completed, OSD display and PIF-VCO self-adjustment status data of EEPROM are updated.
7. VIF-DEF(1chip), intelligent monitor output and IM input mode are recovered.
Setting Mode Items
Option Mode Items
Check
Mode
Micron mask version, software version and ROM correction function status are displayed in check mode.
Micron mask version, software version and ROM correction function status are displayed in check mode.
ADJUSTMENT
METHOD
Memory
Map Data
Caution: to get into the service mode, one of the ways is press direct key for
service items.
There is three stage of Service Mode data
First stage data from V01 ~ M06 to go into second stage of service mode data, press MENU key
Second stage data from F01 ~ F70 to go into third stage of service mode data, press MENU key
Third stage data from O01 ~ O30
There is three stage of Service Mode data
First stage data from V01 ~ M06 to go into second stage of service mode data, press MENU key
Second stage data from F01 ~ F70 to go into third stage of service mode data, press MENU key
Third stage data from O01 ~ O30
Tuesday, August 16, 2016
How to disassemble Toshiba 23HLV87 LCD TV/DVD COMBINATION
WHEN REPLACING DVD DECK
Before removing Pick Up PCB and DVD PCB connector, the short circuit the position shown in Fig, using a soldering iron. If you remove the DVD Deck with no soldering, the Laser may be damaged.
When installing the DVD Deck
Remove all the soldering on the short circuit position after the connection of Pick Up PCB and DVD PCB connector.
Use the Lead Free solder.
Manual soldering conditions
Soldering temperature: 350+5oC
Soldering time: Within 2 seconds
Soldering combination: Sn-3.0Ag-0.5Cu
When Soldering/Removing of solder, use the draw in equipment over the Pick Up Unit to keep the Flux smoke away from it.
Before removing Pick Up PCB and DVD PCB connector, the short circuit the position shown in Fig, using a soldering iron. If you remove the DVD Deck with no soldering, the Laser may be damaged.
When installing the DVD Deck
Remove all the soldering on the short circuit position after the connection of Pick Up PCB and DVD PCB connector.
Use the Lead Free solder.
Manual soldering conditions
Soldering temperature: 350+5oC
Soldering time: Within 2 seconds
Soldering combination: Sn-3.0Ag-0.5Cu
When Soldering/Removing of solder, use the draw in equipment over the Pick Up Unit to keep the Flux smoke away from it.
DISASSEMBLY INSTRUCTIONS
REMOVAL OF MECHANICAL PARTS AND
P.C. BOARDS
BACK COVER
Unlock the 2 supports .
Remove the Back Cover in the direction of arrow.
Remove the Back Cover in the direction of arrow.
HINGE
ASS'Y
Remove
the 4 screws (1) .
Remove the Stand in the direction of arrow (A).
Remove the 4 screws (2) .
Remove the Angle Stand in the direction of arrow (B).
Remove the 4 screws .
Remove the Hinge Ass'y in the direction of arrow (C).
Remove the 4 screws (2) .
Remove the Angle Stand in the direction of arrow (B).
Remove the 4 screws .
Remove the Hinge Ass'y in the direction of arrow (C).
BACK PANEL
Remove the 9 screws.
Disconnect the following connector: (AH302209).
Remove the Back panel in the direction of arrow.
HANDLE BRACKET
Remove the 4 screws.
Remove the Handle bracket in the direction of arrow.
DECODER PCB AND DVD ASS’Y
Disconnect the following connector: (AH302210,
AH302211,AH302213,AH302217,AH302218).
Remove the 4 screws (1)
Remove the Decoder PCB in the direction of arrow (A).
Remove the 4 screws (2)
Remove the DVD ass’y in the direction of arrow (B).
BACK
PLATE B AND BACK PLATE C AND MAIN PCB
Remove
the 8 screws (1) .
Remove the Back plate B and Back plate C in the
direction of arrow (A).
Disconnect the following connector: (AH302208, AH302209,AH302212,AH302213,AH302214).
Remove the 4 screws (2)
Remove the Main PCB in the direction of arrow (B)
Remove the Back plate B and Back plate C in the
direction of arrow (A).
Disconnect the following connector: (AH302208, AH302209,AH302212,AH302213,AH302214).
Remove the 4 screws (2)
Remove the Main PCB in the direction of arrow (B)
Click on the pictures to magnify
Sony SAVA 500 Test mode – Schematic Diagram - Home Theater Speaker System
Sony SAVA-500/SS-CN16/SR16 HOME THEATER ACTIVE SPEAKER SYSTEM – Circuit Diagram – Test modes
KEY CHECK MODEProcedure
1. Push back [Power] button to turn the power OFF.
2. Connect the lead wire to TP3 and TP4 on the KEY board.
3. Push [Power] button to power ON.
4. Let the lead wire short TP3 and TP4.
5. Fluorescent indicator tube display “KEY CHK 500”, and enter the key check mode.
6. Pressing any buttons, the number of button will be displayed on the fluorescent indicator tube.
7. Pressing the first button turns on the [READY] LED (red), and the second button turns on the [ON] LED (green). Thus, two LEDs light up alternately each time the buttons are pressed.
8. After all buttons are pressed, it will be in the STANDBY mode.
Note: If a check failed, the set does not go in STANDBY state, and you cannot exit from the test mode. In this case, quit the test mode by pushing back [Power] button.
Input = [1]
Surround = [2]
Center mode = [3]
Woofer = [4]
Master volume (-ve) = [5]
Master volume (+ve) = [6]
Main board - Circuit diagram and PWB [Click on the pictures to zoom in]
Amplifier board PWB and circuit diagram
Exploded view
Procedure
1. Push back [Power] button to turn the power OFF.
2. Connect the lead wire to TP1 and TP2 on the KEY board.
3. Push [Power] button to power ON.
4. Let the lead wire connected TP1 and TP2.
5. Fluorescent indicator tube display “AMP CHK 500”, and enter the amp check mode.
6. The check step advances in order as TP1 and TP2 are shorted.
The step 12 is the AUTO POWER ON/OFF
The step 12 is automatically turned the power OFF in one second, ON when a signal is entered to TV input, and OFF when a signal input stops.
After the step 12 finished, return the parameters to default values, then turn the power OFF.
7. To release the test mode, push back [Power] button.
After the step 12 finished, return the parameters to default values, then turn the power OFF.
7. To release the test mode, push back [Power] button.
Monday, August 15, 2016
Sony HCD-GZR777DA – Test modes – Error codes – Circuit diagram DVD Mini Hi-Fi MHC-GZR777DA DVD DECK RECEIVER
HCD-GZR777DA is the tuner, deck, DVD and amplifier section in MHC-GZR777DA.
DVD mechanism: CDM74HFVX-DVBU101Optical pick-up: KHM-313CAB
Tape transport mechanism: CFP42608
Power output (rated): 105 W + 105 W (at 6 Ohms 1 kHz, 1% THD)
RMS output power (reference): 210 W+ 210 W (per channel at 6 Ohms, 1 kHz)
Cold reset
The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to the customer.
1. Press the [Power] button to turn on the system.
2. Press the [Stop] button, [DISC 3] button and [Power] button simultaneously.
3. The message “COLD RESET” appears on the fluorescent indicator tube. Then, the fluorescent indicator tube becomes blank for a while, and the system is reset.
1. Press the [Power] button to turn on the system.
2. Press the [Stop] button, [PRESET EQ] button and [DISC 1] simultaneously.
3. The message “VACS0” appears on the fluorescent indicator tube.
To release from Common Test Mode
1. To release from this mode, press the [Power] button.
2. To cold reset is enforced at the same time.
To enter AMP Test Mode
1. Press the [Power] button to turn on the system.
2. Press the [Stop] button, [GROOVE] button and [DISC 1] button simultaneously.
3. The message “AMP TEST IN” appears on the fluorescent indicator tube.
To release from AMP Test Mode
1. To release from this mode, press the [Power] button.
Power amplifier circuit diagram and PWB
[DVD SHIP MODE (WITH MEMORY CLEAR)]
• This mode moves the optical pick-up to the position durable to vibration and clears all data including preset data stored in the RAM to initial conditions after the power supply is turned off. Use this mode when returning the set to the customer after repair.
Procedure
1. Press the [Power] button to turn on the system.
2. Press the [DVD] button, to set the “NO DISC” mode.
3. Press the [TUNING –] button, [DISC 3] button and [Power] button simultaneously.
4. After the “STANDBY” blinking display finishes, a message “COLD RESET” appears on the fluorescent indicator tube and the DVD ship mode is set.
To release from DVD Ship Mode
1. To release from this model, press the [Power] button.
• This mode moves the optical pick-up to the position durable to vibration and clears all data including preset data stored in the RAM to initial conditions after the power supply is turned off. Use this mode when returning the set to the customer after repair.
Procedure
1. Press the [Power] button to turn on the system.
2. Press the [DVD] button, to set the “NO DISC” mode.
3. Press the [TUNING –] button, [DISC 3] button and [Power] button simultaneously.
4. After the “STANDBY” blinking display finishes, a message “COLD RESET” appears on the fluorescent indicator tube and the DVD ship mode is set.
To release from DVD Ship Mode
1. To release from this model, press the [Power] button.
[DVD COLOR SYSTEM MODE]
This mode let you change the color system of the video output from PAL to NTSC or vice-versa.
Procedure
1. Press the [Power] button to turn on the system.
2. Press the [DVD] button.
3. Press the [Power] button to turn off the system.
4. Press the [DISPLAY] button to switch the mode the clock display or demonstration mode.
5. Press the [Stop] button and [Power] button simultaneously. The system will turn off automatically.
6. The message “COLOR PAL” or “COLOR NTSC” appears on the fluorescent indicator tube.
To release from DVD Color System Mode
1. Once the color system has been selected, the mode is fixed thereafter. If you wish to change the mode again, perform the above item 4 again.
[DVD FIRMWARE VERSION MODE]
This mode is used to display the DVD firmware version.
Procedure:
1. Press the [Power] button to turn on the system.
2. Press the [DVD] button.
3. Press the [Power] button to turn off the system and enter the clock display or demonstration mode.
4. Press the [Stop] button and [Power] button simultaneously.
5. The version of DVD firmware appears on the on-screen display on TV.
This mode is used to display the DVD firmware version.
Procedure:
1. Press the [Power] button to turn on the system.
2. Press the [DVD] button.
3. Press the [Power] button to turn off the system and enter the clock display or demonstration mode.
4. Press the [Stop] button and [Power] button simultaneously.
5. The version of DVD firmware appears on the on-screen display on TV.
To release from DVD Firmware Version
Mode
1. To release from this mode, press the [Power] button.
1. To release from this mode, press the [Power] button.
[DVD SERVICE MODE]
This mode let you make diagnosis and adjustment easily by using the remote commander and the TV. The instructions, diagnostic results, etc. are given on the on-screen display.
TEST DISC LIST
Be sure to use the DVD disc that matches the signal standards of your region.
• CD
YEDS-18 (Part No.: 3-702-101-01)
PATD-012 (Part No.: 4-225-203-01)
• DVD SL (Single Layer)
NTSC : HLX-503 (Part No.: J-6090-069-A)
HLX-504 (Part No.: J-6090-088-A)
PAL : HLX-506 (Part No.: J-6090-077-A)
• DVD DL (Double Layer)
NTSC : HLX-501 (Part No.: J-6090-071-A)
HLX-505 (Part No.: J-6090-089-A)
PAL : HLX-507 (Part No.: J-6090-078-A)
Procedure to enter to DVD Service
Mode
1. Press the [Power] button to turn on the system.
2. Press the [DVD] button.
3. Press the [Stop] button and [OPEN/CLOSE] button simultaneously and then turn the [MASTER VOLUME] dial clockwise.
4. The message “SERVICE IN” appears on the fluorescent indicator tube and the Top Menu of Remocon Diagnosis Menu appears on the on-screen display on the TV. The model name, main unit’s micom version information (IF-con) and DVD firmware version information (Syscon) are displayed at the bottom of the on-screen display.
2. Press the [DVD] button.
3. Press the [Stop] button and [OPEN/CLOSE] button simultaneously and then turn the [MASTER VOLUME] dial clockwise.
4. The message “SERVICE IN” appears on the fluorescent indicator tube and the Top Menu of Remocon Diagnosis Menu appears on the on-screen display on the TV. The model name, main unit’s micom version information (IF-con) and DVD firmware version information (Syscon) are displayed at the bottom of the on-screen display.
5. To execute each function, press its number by using numeric
button on the remote commander.
6. To release from this mode, press the [Power] button to turn off the system.
6. To release from this mode, press the [Power] button to turn off the system.
To clear the Laser Hours
Press the [ DISPLAY] button and then press the [CLEAR] button. The data for both CD and DVD data are reset.
Press the [ DISPLAY] button and then press the [CLEAR] button. The data for both CD and DVD data are reset.
The meaning of error code is as below
01: Communication error (No reply from syscon)
02: Syscon hung up
03: Power OFF request when syscon hung up
19: Thermal shutdown
24: MoveSledHome error
25: Mechanical move error (5 Changer)
26: Mechanical move stack error
30: DC motor adjustment error
31: DPD offset adjustment error
32: TE balance adjustment error
33: TE sensor adjustment error
34: TE loop gain adjustment error
35: FE loop gain adjustment error
36: Bad jitter after adjustment
40: Focus NG
42: Focus layer jump NG
51: Spindle stop error
52: Open kick spindle error
60: Focus on error
61: Seek fail error
62: Read Q data/ID error
70: Lead in data read fail
71: TOC read time out (CD)
80: Can’t buffering
81: Unknown media type
01: Communication error (No reply from syscon)
02: Syscon hung up
03: Power OFF request when syscon hung up
19: Thermal shutdown
24: MoveSledHome error
25: Mechanical move error (5 Changer)
26: Mechanical move stack error
30: DC motor adjustment error
31: DPD offset adjustment error
32: TE balance adjustment error
33: TE sensor adjustment error
34: TE loop gain adjustment error
35: FE loop gain adjustment error
36: Bad jitter after adjustment
40: Focus NG
42: Focus layer jump NG
51: Spindle stop error
52: Open kick spindle error
60: Focus on error
61: Seek fail error
62: Read Q data/ID error
70: Lead in data read fail
71: TOC read time out (CD)
80: Can’t buffering
81: Unknown media type
Grundig and BEKO LCD TVs – SMPS, Inverter, Scaler, Audio output and Tuner circuit Diagram
Davio 20 LCD 51-5710 Text GBF6600, Davio 20 LCD 51-5732 DVB-T GBG1300, Lenaro 19 LXW 49-7711 Text GBF6400, Lenaro 26 LXW 68-7732 DVB-T GBG1100, Lenaro 32 LXW 82-7732 DVB-T GBG1400, Monaco 20 LCD 51-9732 DL GBF0300, Vision 6 -32-6820 GBG6500, Vision 20 LCD 51-8720 Text GBF0800, Vivance II 32 LXW 82-6711 Text GBF8500, Lenaro 19 LXW 49-7741 DVB-T GBG1200, 26-LXW 68-8600 DL GBF8600, 32-LXW 82-8600 DL GBF7300
Grundig uses Beko LCD TV kit with all the above TV models. BEKO XLA190R-5 Main board
SMPS Schematic and PWB [Click on the pictures to magnify]
Inverter schematic and PWB
Power supply
Scalar
Audio
Tuner
Subscribe to:
Posts (Atom)