HOW TO ENTER SERVICE MODE - Beko K5 CHASSIS-DVD COMBO TV

Service Mode – Adjustments – Factory Default Data values – Beko TV-DVD Combo

SERVICE MODE

To enter the Service Mode, ‘Service In/Out” button on the Service Remote Control.

Or 
Activate the “Picture Menu” with the user remote control and press “9301” (Press “0” button to exit the Service Mode).

To exit from the service menu, TV/TX button should be typed on the Remote Control.

While the service menu is on screen, version and the date of the software are written on right bottom of the screen.

AGC Adjustment
Switch to Service Menu
Find the “AGC METHOD” under “OPTIONS” sub-menu with P+/P-,
Set its value to “SYNC+PEAK WHITE”.
Find “AGC” under “IF ADJ.” sub-menu with P+/P-,
Set its value to “4”
Find “AGC FOR VHF I” under “IF ADJ.” sub-menu with P+/P-,
Set its value to “4”
Set “PIP AGC” topic‘s value to “15”
Set “PIP AGC FOR VHF I” topic‘s value to “20”
Exit from the service menu.

Supply Voltage Adjustment
Connect a digital voltmeter to the cathode of diode D610 at the AV mode of the TV and set the screen voltage to the minimum with the screen potentiometer. Adjust the main supply voltage (B+) with P601 potentiometer to the following value (after supply adjustment, readjust Screen and focus voltage).
21” : 122 VDC (for A51QDX993X030)

Screen Adjustment
Switch the TV to the AV mode
Do not make any connection from the scart switch
Switch on the service menu
Set the value of “BLUE-BLACK” option to “OFF”
Set the value of the “SCREEN ADJ.” to the indicated value in FACTORY SETTINGS TABLE
Press “OK” button on the RC
There should appear a horizontal line on the centre of the set
Adjust the screen potentiometer to set the line at the first seen point.
Exit from the service menu.

White Balance Adjustment
Apply a white pattern with a pattern generator to the antenna input.
Enter the Service Menu and access to VIDEO ADJ. I sub-menu
Set the value of “G.CUT OFF” value to “156” and “G.DRIVE” value to “356”.
Adjust red drive with“R.DRIVE” and blue drive with “B.DRIVE” .
Adjust red cut off with “R.CUT OFF” and blue cut off with “B. CUT OFF”
If white balance cannot be adjusted properly, slightly change the values of “G.CUT OFF” and “G.DRIVE”.
Exit from Service menu.

Geometry Adjustments
Apply the cross hatch pattern with a pattern generator to the antenna input.
Enter Service Menu and access to GEOMETRY sub-menu
The options, “50Hz GEOM.”, “50Hz. GEOM.HOR.II”, “50Hz GEOM.EHT” are for PAL/SECAM.
The options, “60Hz GEOM.”, “60Hz. GEOM.HOR.II”, “60Hz GEOM.EHT” are for NTSC.
Adjust Vertical Amplitude with “VERTICAL AMPLITUDE” option.
Adjust vertical centering with “VERTICAL SHIFT”, vertical linearity with “LINEARITY” , vertical s-correction with “S-CORRECTION”, vertical parallelogram with “VERTICAL ANGLE”, vertical bow with “VERTICAL BOW”, horizontal centering with “HORIZONTAL SHIFT”, trapeze adjustment with “TRAPEEZE CORR.I”, general parabola adjustment with “CUSHION CORR.I” options.
Adjust the parabola of the top corners with “UPPER CORNER 1” and “UPPER CORNER 2”.
Adjust the parabola of the bottom corners with “LOWER CORNER 1” and “LOWER CORNER 2”.
Adjust the horizontal OSD centering with “HORIZONTAL OSD POSITION” and vertical OSD centering with “VERTICAL OSD POSITION”
For NTSC adjustments, connect an NTSC signal from AV1 follow the adjustments explained above under the sub-menus “60Hz GEOM.”, “60Hz. GEOM.HOR.II”, “60Hz GEOM.EHT”.
Exit from the Service Menu.

Options Menu
Enter the Service Menu with the Service RC and and access to OPTION sub-menu and the options and their details are:
AV1YUV : AVAILABLE(Component input is available from Scart 1); N/A(Not Available)
AV2&AV3 : AV2&AV3 N/A (Not Available); AV2 AVAIL.-AV3 N/A (AV1 Available, AV2 Not Av.);
AV2&AV3 AVAILABLE ( Both Available)
AV4 : NONE(No Front AV); CVBS+SVHS(Both Available); CVBS ONLY(Front AV Available); SVHS ONLY(SVHS available)
TELETEXT : DEFAULT(Teletext); FASTEXT; TOPTEXT; FASTEXT+TOPTEXT
LANGUAGE : 1 (English, French, German, Italian, Spanish, Portuguese, Dutch, Greek, Danish, Swedish, Finnish, Norwegian, Turkish, Hebrew, Russian, Hungarian, Slovak, Czech, Polish, Albanian, Macedonian, Serbian, Slovenian, Romanian, Croatia, Bulgarian); 2 (English, French, German, Italian, Dutch, Greek, Danish, Swedish, Spanish, Portuguese, Norwegian, Finnish, Albanian, Macedonian, Turkish, Russian, Hebrew, Hungarian, Croatia, Romanian, Bulgarian, Slovenian, Czech, Slovak, Arabic, Persian)
TXT TABLE : AUTO; WEST(English, French, German, Turkish, Spanish, Italian, Finnish, Swedish, Norwegian, Danish); EAST(Polish, French, Hungarian, Czech, German, Slovenian, Italian, Romanian); GREEC(English, French, Turkish, German, Finnish, Norwegian, Swedish, Danish, Spanish, Italian, Greek); CYRILLIC(English, Russian, German, Czech, Estonian, Ukrainian, Latvian); ARABIC(English,
French, German, Turkish, Spanish, Italian, Finnish, Swedish, Norwegian, Danish, Arabic); FARSI(English, French, German, Turkish, Spanish, Italian, Finnish, Swedish, Norwegian, Danish, Persian); HEBREW(English, French, German, Turkish, Italian, Finnish, Swedish; Norwegian,Danish)
CRT : 4:3; 16:9

PIP : AVAILABLE; N/A
MAIN TUNER : Philips; Panasonic DB2G3-DA5G3; Temic; Panasonic D44G3; Sharp or Alps
PIP TUNER : Philips; Panasonic DB2G3-DA5G3; Temic; Panasonic D44G3; Sharp or Alps
SVM&DCI : ON; OFF; MENU

BLUEBLACK : ON(blue-black activated), OFF(Blue-black inactivated)
LTI&COMB : ON; OFF
CTI :ON(Color Transition Improvement available); OFF(N/A)
ADAPTIVE PKG : ON(Digital Noise Reduction available); OFF(N/A); MENU(via menu)
PROTECTION : N/A(No Protection circuit); BCL ONLY(Only Beam Current Limiting available); VERTICAL ONLY( Only Vertical protection available); BCL&VERTICAL(Both available)
PANORAMA : AVAILABLE; N/A
KEYBOARD : P-P+V-V+; MENU P/V-+
GAME : AVAILABLE; N/A
ALARM TIMER : AVAILABLE; N/A
DVD LANG : A; B; C; D
DEMO : 0(auto program in first start, closed); 1(open)

Sound Options Menu
BG : EUROPE(BG Europe); NEW ZELLAND(BG New Zealand); AUSTRALIA(BG Australia); N/A(BG not available)
DK : AVAILABLE; N/A
I : AVAILABLE; N/A
L/L’ : AVAILABLE; N/A
FM RADIO / TV GUIDE : NONE(Radio & EPG, not available); FM RADIO(Only radio available); TV GUIDE(Only TV Guide available)
NICAM : AVAILABLE; N/A
DOLBY VITUAL : AVAILABLE; N/A
BASS OPTION : DYNAMIC BASS(Dynamic Bass available); SUBWOOFER(Subwoofer available); NONE
HEADPHONE : AVAILABLE; N/A
CARRIER MUTE : VIA MSP; VIA MICRO
PAT : AVAILABLE(Picture and Text available); N/A
SIMPLE HOTEL : AVAILABLE; N/A

HOTEL MAX
VOL : Limits the max volume level in hotel mode
AGC METHOD : SYNC PEAK WHITE; FIXED
TILT : N/A; AVAILABLE
CRT 4:3,
MODE 16:9 : VIA FLYBL(Prevents cut off line to be seen by shifting up); DISABLE CUTOFF( Directly Prevents Cut off line to be seen)

Hotel Mode
If “Simple Hotel” option in the Service Menu is selected as “ON”, to access set up menu “4658” should be typed whilst the “Features Menu” is on screen. After finishing the adjustments by taking the TV to Standby or shutting down, the access can be re-inhibited.

Factory Settings for Service Mode

HCD-GZR7D HCD-GZR8D HCD-GZR9D SONY DVD DECK RECEIVER – AMP and POWER CIRCUIT DIAGRAM – PWBs

STK-415 – STK-416

FRONT SPEAKER SCHEMATIC

SCHEMATIC DIAGRAM – SURROUND/CENTER SPEAKER, SUBWOOFER Section – (HCD-GZR8D/GZR9D)  STK-433-260A-E

POWER Section

SONY HCD-GZR7D – SONY HCD GZR8D - SONY HCD GZR9D - Adjustments

E Model HCD-GZR7D/GZR8D/GZR9D

Australian Model HCD-GZR9D

DVD Section

DVD Mechanism Type: CDM74HF-DVBU101//C -  Optical Pick-up Name: KHM-313CAB/C2RP

Tape Deck Section: Model Name Using Similar Mechanism: HCD-GNZ777D/GNZ888D

Amplifier Section

The following measured at AC 120, 220, 240 V, 50/60 Hz

MHC-GZR9D

Power output (rated): 100 W + 100 W (6 Ω at 1 kHz, 1% THD) RMS output power (reference)

Front speaker: 180 W + 180 W (per channel at 6 Ω, 1 kHz, 10% THD)

Center speaker: 60 W (6 Ω at 1 kHz, 10% THD)

Surround speaker: 60 W + 60 W (per channel at 6 Ω, 1 kHz, 10% THD)

Subwoofer: 180 W (6 Ω at 80 Hz, 10% THD)

MHC-GZR8D

Power output (rated): 100 W + 100 W (6 Ω at 1 kHz, 1% THD) RMS output power (reference)

Front speaker: 180 W + 180 W (per channel at 6 Ω, 1 kHz, 10% THD)

Center speaker: 60 W (6 Ω at 1 kHz, 10% THD)

Surround speaker: 60 W + 60 W (per channel at 6 Ω, 1 kHz, 10% THD)

MHC-GZR7D

Power output (rated): 100 W + 100 W (6 Ω at 1 kHz, 1% THD) RMS output power (reference):

180 W+ 180 W (per channel at 6 Ω, 1 kHz, 10% THD)

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.

Procedure:
1. Press the [Power] button to turn on the system.
2. Press [ILLUMINATION] button, [ENTER] 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.

COMMON TEST MODE

This mode is used to check operations of the respective section of Equalizer level, volume and VACS ON/OFF.

To enter Common Test Mode
1. Press [power] button to turn on the system.
2. Press [stop] button, [ILLUMINATION] button and [DISC 3] simultaneously.
3. The message “VACS0” appears on the fluorescent indicator tube.

Check of Equalizer Level

1.Press [EQ BAND/MEMORY] button repeatedly until a message “ALL EQ MIN” appears on the fluorescent indicator tube. GEQ decreases to its minimum.
2. Press [EQ BAND/MEMORY] button repeatedly until a message “ALL EQ MAX” appears on the fluorescent indicator tube. GEQ increases to its maximum.
3. Press [EQ BAND/MEMORY] button repeatedly until a message “ALL EQ FLAT” appears on the fluorescent indicator tube. GEQ is set to flat.

Check of Volume

1.When the [MASTER VOLUME] dial is turned counterclockwise even slightly, the sound volume increases to its maximum and message “VOLUME16”  => “VOLUME MAX” appears on the fluorescent indicator tube.
2. When the [MASTER VOLUME] dial is turned clockwise even slightly, the sound volume decreases to its minimum and message “VOLUME16” =>  “VOLUME MIN” appears on the fluorescent indicator tube.

Check of VACS (Variable Attenuation Control System) ON/OFF Select

Press [REC TO TAPE] button repeatedly until a message “VACS OFF” or “VACS ON” appears on the fluorescent indicator tube.

To release from Common Test Mode
1. To release from this mode, press [power] button.
2. To cold reset is enforced at the same time.

AMP TEST MODE

This mode is used to display the real time VACS level and check operations of the respective sections of Equalizer band and DBFB ON/OFF.

To enter AMP Test Mode
1. Press [power] button to turn on the system.
2. Press [stop] button, [EQ BAND/MEMORY] button and [REC TO USB] button simultaneously.
3. The message “AMP TEST IN” appears of the fluorescent indicator tube.

Check of VACS Display/AMP Adjustment Select
1. Press [REC TO TAPE] button repeatedly until a message “V0 0 0” appears on the fluorescent indicator tube. “0” represents VACS level which is triggered by signal level.
2. Press [REC TO TAPE] button repeatedly until a message “D +6 +2 +4” appears on the fluorescent indicator tube. “+6” represents Equalizer Low level, “+2” represents Equalizer Mid level and “+4” represents Equalizer High level.

Check of Equalizer Band Select
1. Press [EQ BAND/MEMORY] button repeatedly until a message “LOW +6 dB” appears on the fluorescent indicator tube. EQ Band is set to Low level.
2. Press [EQ BAND/MEMORY] button repeatedly until a message “MID +2 dB” appears on the fluorescent indicator tube. EQ Band is set to Middle level.
3. Press [EQ BAND/MEMORY] button repeatedly until a message “HIGH +4 dB” appears on the fluorescent indicator tube. EQ Band is set to High level.

Change of Equalizer Band
1. Press [EQ BAND/MEMORY] button repeatedly until a message “LOW +6 dB” appears on the fluorescent indicator tube.
2. When the [OPERATION DIAL] ring is turned clockwise or counter-clockwise even slightly, “LOW +6 dB” change to “LOW –8 dB” y “LOW +8 dB” appears on the fluorescent indicator tube.
3. Press [EQ BAND/MEMORY] button repeatedly until a message “MID +2 dB” appears on the fluorescent indicator tube.
4. When the [OPERATION DIAL] ring is turned clockwise or counter-clockwise even slightly, “MID +2 dB” change to “MID –8 dB” y “MID +8 dB” appears on the fluorescent indicator tube.
5. Press [EQ BAND/MEMORY] button repeatedly until a message “HIGH +4 dB” appears on the fluorescent indicator tube.
6. When the [OPERATION DIAL] ring is turned clockwise or counter-clockwise even slightly, “HIGH +4 dB” change to “HIGH –8 dB” y “HIGH +8 dB” appears on the fluorescent indicator tube.

Check of DBFB ON/OFF Select
Press [OPTIONS] button repeatedly until a message “DBFB OFF” or “DBFB ON” appears on the fluorescent indicator tube.

To release from AMP Test Mode
To release from this mode, press [STOP] button, [EQ BAND/ MEMORY] button and [power] button simultaneously.

TCM OFFLINE MODE

This mode prevents the system from tuning off automatically when TCM is not connected. Therefore, measurements can be done even when TCM is not connected during production.

1. Press [POWER] button to turn on the system.
2. Press [SOUND FIELD] button, [EQ BAND/MEMORY] button and [power] button simultaneously. The system will turn on automatically.
3. The message “TCM OFFLINE” appears on the fluorescent indicator tube.

To release from TCM OFFLINE Mode
To release from this model, press [power] button.

PANEL TEST MODE

This mode is used to check the fluorescent indicator tube, LEDs, button, MASTER VOLUME dial OPERATION DIAL ring, system software version, DVD ib version, model name and destination.

1. Press [power] button to turn on the system.
2. Press [x] button, [ILLUMINATION] button and [DISC 2] button simultaneously.
3. Power illumination LEDs and segment in fluorescent indicator tube are lighted up.
4. When you want to enter to the system software version display model, press [DISC 1] button. The system software version appears on the fluorescent indicator tube.  Press [DISC 1] button again, the DVD lib version appears on the fluorescent indicator tube.
5. Press [DISC 2] button the key encode test mode is activated.
6. In the key encode test mode, the fluorescent indicator tube displays “KEY 0 0 0 0”.  Each time a button pressed change the each numbers.
7. Press [DISC 3] buttons the mode name and destination on the fluorescent indicator tube.

To release from Panel Test Mode
To release from this mode, press [stop] button, [ILLUMINATION] button and [DISC 2] button simultaneously.

DVD SHIP MODE (WITHOUT MEMORY CLEAR

This mode moves the optical pick-up to the position durable to vibration. Use this mode when returning the set to the customer after repair.

1. Press [power] button to turn on the system.
2. Press [DVD] button, to set the “DVD NO DISC” mode.
3. Press [ < > ] button and [power] button simultaneously.  The system will turn off automatically.
4. After the “STANDBY” blinking display finishes, a message “LOCK” appears on the fluorescent indicator tube and the DVD ship mode is set.

To release from DVD Ship Mode
To release from this model, press [power] button.

DVD SHIP MODE (WITHOUT MEMORY CLEAR

This mode moves the optical pick-up to the position durable to vibration and clears all data including pre-set 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.

1. Press [power] button to turn on the system.
2. Press [DVD] button, to set the “DVD NO DISC” mode.
3. Press [ENTER] button, [GROOVE] 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
To release from this model, press [power] button.

DISC THEFT PREVENTION MODE

This mode let you lock the disc tray. When this mode is activated, the disc tray will not open.

1. Press [power] button to turn on the system.
2. Press [DVD] button.
3. Press [stop] button and [ ^  OPEN/CLOSE] button simultaneously and hold down until “LOCKED” or “UNLOCKED” appears on the fluorescent indicator tube (around 5 seconds).

To release from Disc Theft Prevention Mode
To release from this model, press [power] button.

DVD COLOUR SYSTEM MODE

This mode let you change the colour system of the video output from PAL to NTSC or vice-versa.

1. Press [power] button to turn on the system.
2. Press [DVD] button.
3. Press [power] button to turn off the system.
4. Press [Pause] button and [power] button simultaneously.  The system will turn off automatically.
5. The message “COLOUR PAL” or “COLOUR NTSC” appears on the fluorescent indicator tube.

To release from DVD Colour System Mode
To release from this model, press [power] button.

DVD FIRMWARE VERSION MODE

This mode is used to display the DVD firmware version.

1. Press [power] button to turn on the system.
2. Press [DVD] button.
3. Press [stop] button and [power] button simultaneously.
4. The version of DVD firmware appears on the on-screen display on TV.
To release from DVD Firmware Version Mode
To release from this mode, press [power] button.

DVD REBOOT AVOIDANCE MODE

This mode is used to display the DVD Reboot Avoidance.
Procedure:
1. Press [power] button to turn on the system.
2. Press [DVD] button.
3. Press [DVD] button, [stop] button and [DISC 3] button simultaneously.
4. The message “MTK DBG” appears on the fluorescent indicator tube.
To release from DVD Reboot Avoidance Mode
To release from this mode, press [power] button.

AM TUNER set:  The step interval of AM channels can be toggled between 9 kHz and 10 kHz.
1. Press [power] button to turn off the system.
2. Press [TUNER/BAND] button repeatedly to select the “AM”.
3. Press [power] button to turn on the system.
4. Press [TUNING +] button and [power] button simultaneously.  The system will turn on automatically.
5. The message “AM 9k STEP” or “AM 10k STEP” appears on the fluorescent indicator tube and thus the channel step change.

VIDEO/SAT FUNCTION CHANGE

This mode let you change from VIDEO to SAT and vice-versa.
1. Press [power] button to turn on the system.
2. Press [VIDEO/SAT] button.
3. Press [VIDEO/SAT] button and [power] button simultaneously.  The function will change to SAT. Press the same button again to change from SAT to VIDEO.

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 (Dual 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 [power] button to turn on the system.
2. Press [DVD] button.
3. Press [x] button and [Z 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 [power] button to turn off the system.

Execute IOP Measurement
In order to execute IOP measurement; the following standard procedures must be followed.

From the Top Menu of Remocon Diagnosis Menu, select “2.  Drive Manual Operation” by pressing the [2] button on the remote commander. The following screen appears on the on-screen display.

Select “3. Manual Adjustment” by pressing the [3] button on the remote commander. The following screen appears on the on-screen display.

3. Select “6. Iop:” by pressing [6] button on the remote commander.
4. Wait until a hexadecimal number appears in the on-screen display as below

5. Convert data from hexadecimal to decimal by using conversion table.
6. Please find the label on the rear of the BU (Base Unit).  The default IOP value is written in the label.
7. Subtract between these two values.
8. If the remainder is smaller than 93 (decimal), then it is OK.  However if the value is higher than 93, then the BU is defective and need to be change.
9. Press [RETURN] button on the remote commander to return to previous menu.
10. Press [0] button on the remote commander to return to the Top Menu of Remocon Diagnosis Menu.
11. Press [power] button to turn off the system.

Check Emergency History
From the Top Menu of Remocon Diagnosis Menu, select “3. Emergency History” by pressing the [3] button on the remote commander. The following screen appears on the on-screen display.

2. You can check the total time when the laser is turned on during playback of DVD and CD from the above menu. The maximum time, which can be displayed are 999h 59min.
3. You can check the error code of latest 10 emergency history from the above menu. To view the previous or next page of emergency history, press [|<<] or [>>|] on the remote commander. The error code consists of;

Error Code

The meaning of error codes
01: Communication error (No reply from syscon)
02: Syscon hung up
03: Power OFF request when syscon hung up
19: Thermal shut-down
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
52: Open kick spindle error
51: Spindle stop 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

SONY KDL22BX300 – SONY KDL 32BX300 – LCD TV - SMPS SCHEMATIC

Applicable to: KDL-22BX300 RM-YD035 US - KDL-22BX300 RM-YD035 CND - KDL-22BX300 RM-YD035 MX - KDL-22BX300 RM-YD035 LATIN AMERICA - KDL-32BX300 RM-YD035 US - KDL-32BX300 RM-YD035 CND - KDL-32BX300 RM-YD035 MX

GD1 - POWER -  BOARD SCHEMATIC DIAGRAM 1 of 2 - [KDL-22BX300 ONLY]

GD1 – POWER BOARD SCHEMATIC DIAGRAM -2 of 2 [KDL-22BX300 ONLY]

GD-1 PWB [Component and Foil side]

G2LE POWER BOARD SCHEMATIC DIAGRAM [KDL-32BX300 ONLY]

CLICK ON THE PICTURES TO ZOOM IN

Do not press on the panel or frame edge to avoid the risk of electric shock.
Do not scratch or press on the panel with any sharp objects.
Do not leave the module in high temperatures or in areas of high humidity for an extended period of time.
Do not expose the LCD panel to direct sunlight.
Avoid contact with water. It may cause a short circuit within the module.
Disconnect the AC adapter when replacing the backlight (CCFL) or inverter circuit. (High voltage occurs at the inverter circuit at 650Vrms.)
Always clean the LCD panel with a soft cloth material.
Use care when handling the wires or connectors of the inverter circuit. Damaging the wires may cause a short.
Protect the panel from ESD to avoid damaging the electronic circuit (C-MOS).

SYLVANIA LC195SL9 B – FUNAI LC195SL9 B – LCD TV – HOW TO ENTER SERVICE MODE – INITILIZATION

Power supply [SMPS], Backlight inverter Circuit diagrams – Connector pin voltages - Sylvania and Funai – LC195SL9B – 19 inch LCD TV

Used ICs: SA7412 – NJM4558M – PCM1782DBGR – TC4052BF – HAT2215R01-Current control switch at Inverter.

HOW TO ENTER SERVICE MODE

Use the service remote control unit.
Turn the power on.
Press the service button on the service remote control unit.

The following screen appears.

How to make the Service remote control unit
Cut “A” portion of the attached remote control unit as shown in above Fig

PURITY CHECK MODE

This mode cycles through full-screen displays of red, green, blue, and white to check for non-active pixels.
Enter the Service mode.
Each time pressing 7 button on the service remote control unit, the display changes as follows.

HOW TO INITIALIZE THE TV

> Turn the power on.
> To enter the service mode, press the service button on the service remote control unit. Press [INFO] button on the service remote control unit to initialize the LCD television.  "INITIALIZED" will appear in the upper right of the screen. "INITIALIZED" colour will change to green from red when initializing is complete.

[To cancel the service mode, press [POWER] button on the remote control unit.]

SMPS [Power supply regulator] board schematic

CONNECTOR VOLTAGES

BACK-LIGHT INVERTER CIRCUIT DIAGRAM

BACK-LIGHT INVERTER PWB - TOP & FOIL SIDE VIEW

CLICK ON THE PICTURES TO MAGNIFY

                                                Main digital Board Circuit Diagram - Full =>

LG Flatron C17LC – 17 inch CRT MONITOR – CIRCUIT DIAGRAM

CIRCUIT DIAGRAM-FULL

HORIZONTAL AND VERTICAL OUTPUT - SPLIT

SYSCON CHROMA JUNGLE - SPLIT

SMPS-SPLIT

CLICK ON THE SCHEMATICS TO ZOOM IN

AOC LT2257 22 inch LCD TV – SMPS – BACK-LIGHT INVERTER – Audio amplifier – SCHEMATICS

Audio Amplifier Schematic

SMPS Schematic

SMPS PWB

Back-light Inverter Schematic

CLICK ON THE PICTURES TO MAGNIFY

NORCENT and AOC - LT2725 LCD TV - SERVICE MODE - POWER and AUDIO OUTPUT CIRCUIT DIAGRAM

How to enter Service mode [Factory Mode] to AOC LT2725 and Norcent LT2725 LCD TV - SMPS and Audio Output Schematics - Adjustments - Password reset - Parental Control Adjustments.

Used ICs: TC2001 - TP2050 – HJM2199 – STR-A6252 – SI-8120 – FP130

To set or change the password

Enter the old password and then enter the new password.

Confirm new password.

The default password is: 0000

Parental control

Before enter the parental control menu, key in the password first.  The user can set the restricted table about MPAA or TV rating separately.

The default password is: 0000

Press the EXIT button to exit from this adjustment mode.   

SMPS [Power supply Regulator Board] Circuit Diagram

Audio Output Section Circuit Diagram

Factory mode [Service Mode]

In the TV mode adjust volume to zero and press number key 9  8  7  6.

It will achieve the factory mode. Select the item of White Balance and press right key to enter it.

White balance adjustment

In the White Balance you can adjust 8 items.
1-3 items is RO, GO, BO > R, G, B Bias adjust.
4-6 items is RG, GG, BG > R, G, B Gain adjust.
7 item needn't adjust
8 items is Bias (Low luminance) adjustment:
1. Set the raster pattern (Black pattern with 1024×768) Input.
2. Adjust the brightness on OSD until chroma 7120 measurement reach the lowest value. colour temperature select: Cool, Normal, and Warm.

Gain adjustment
A. Adjust Cold colour-temperature:
1. Set the Contrast of OSD function to 80 and Adjust Brightness to chroma-7120 Y>350 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 =291, y =306, Y>350cd/m2
5. Adjust the 4 item: RG, until chroma 7120 indicator reached the value R=100
6. Adjust the 5 item: GG, until chroma-7120 indicator reached the value G=100
7. Adjust the 6 item: BG, until chroma-7120 indicator reached the value B=100
8. Repeat above procedure until chroma-7120 RGB value meet the tolerance =100±2
9. Switch the chroma-7120 to x, y, Y mode with press “MODE” button to check the colour temp is in SPEC. or not.
10. Enter the 8 item to select another colour temperature to adjust.

B. Adjust Normal colour-temperature
1. Set the Contrast of OSD function to 80 and Adjust Brightness to chroma-7120 Y>350cd/m2
2. Switch the chroma-7120 to RGB-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 =299, y =315, Y>350cd/m2
5. Adjust the 4 item: RG, until chroma 7120 indicator reached the value R=100
6. Adjust the 5 item: GG, until chroma-7120 indicator reached the value G=100
7. Adjust the 6 item: BG, until chroma-7120 indicator reached the value B=100
8. Repeat above procedure until chroma-7120 RGB value meet the tolerance =100±2
9. Switch the chroma-7120 to x, y, Y mode With press “MODE” button to check the colour temp is in SPEC. or not.
10. Enter the 8 item to select another color temperature to adjust.

C. Adjust Warm colour-temperature
1. Set the Contrast of OSD function to 80 and Adjust Brightness to chroma-7120 Y>350cd/m2
2. Switch the chroma-7120 to RGB-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 =308, y =324, Y>350cd/m2
5. Adjust the 4 item: RG, until chroma 7120 indicator reached the value R=100
6. Adjust the 5 item: GG, until chroma-7120 indicator reached the value G=100
7. Adjust the 6 item: BG, until chroma-7120 indicator reached the value B=100
8. Repeat above procedure until chroma-7120 RGB value meet the tolerance =100±2
9. Switch the chroma-7120 to x, y, Y mode With press “MODE” button to check the colour temp is in SPEC. or not.
10. Enter the 8 item to select another colour temperature to adjust.

Switch different source
Press the source key on the remote control to switch different source to adjust the AV, HDMI, CONPONENT 480i
and COMPONENT 480p mode.
Press “Exit” button on remote control to quit from factory mode.

LC-60DS440U – SMPS SCHEMATIC – 60 inch LED LCD TV

60 inch LED LCD TV - LC60DS440U SMPS CIRCUIT DIAGRAM

EMI FILTER

  CN101 AC power supply interface, F102 AC protection fuse on the circuit, the power supply board can be of between 90V to 264V

By alternating work, which CY101, CY102, CY103 is used to filter out high frequency noise part, and this part of the circuit can be prevented thunder Hammering, LX103, LX104, CX101, CX102 is used to filter out low frequency noise, RX101,, RX102, RX103 is used to discharge.

PFC, LLC and STANDBY

PFC

LLC

STANDBY

LED DRIVE

BD101 is a filter consisting of four diodes, used to convert AC to DC. CP110 & CP111 for filtering, FR102 is a fuse resistance, when the overload protection for the back of the circuit.  UP101 is a critical mode PWM controller with excellent energy-saving performance, the UCC28051 can provide timely adjust DC

The output voltage to achieve power factor correction, in the short-term voltage instability, this IC can be adjusted by keeping output steady, LP101, QP101, UP101 is this boost & PFC circuit in which the main part and is boosted to 385V.

UM102 is a current mode PWM controller with excellent energy-saving performance, it uses a high voltage direct current source to provide two half-wave Rectifier diodes, further provides lossless starting current starting circuit. INN801 detect MOSFET current from CS pins Detection When the CS pin exceeds 0.7V, so UM102 enters over-current mode and does not automatically resume until the OCP is lower than 0.85V.

UM102 control 12V output, UM103, LM101 for the step-down circuit and the output 5V.

UL101 (SSC9512S) is a double-ended controller series-resonant half-bridge topology. In these converters, switch QL101 & QL102 half-bridge are alternately turned on and off at exactly the same time.

UL101 (SSC9512S) controller IC, multi-resonant soft-switching half-bridge resonant zero current switching power supply, the floating driving

Road to the bridge MOSFET drivers. Soft-switching at all switching cycles. IC is suitable for high-performance power system is small, High efficiency, low noise, because for different power specifications, more effective and easier to design work function can be achieved, such as self-Dynamic dead-time adjustment, operation and detect uncontrollable and so effective.

UL101 UL101 square wave at the start of the operation pin 16 outputs driving QL101, the main current flows to GND bypasses the TL102,

QL101and CL113. UL101 then square wave output pin 11 to drive QL102, the main current flows to GND, through the current. The flow of change, on the other side of QL102, CL113 and TL102 shunt coil of TL102 will be induced current.

QL101 QL102 When turned on, the main current flow will be consumed by DL101, DL102, RL110 RL111, RL113 and RL114,Prevent QL101 & QL102 be damaged large inrush current and voltage spikes.

UD102 (RT6033) The RT6033 is a 4-channel 260 mA constant-current sink LED driver capable of driving four-channel constant power

Flow Switches Good complementary capabilities and extensive VF changes. RT6033 between the four channels respectively and the IC output current value is less than 3% difference

It provides four channels constant current switching. Through an external resistor (RD159, RD129, RD151, RD131, RD153, RD133,RD155, RD135) back to the RT6033 adjustable 5-260 mA constant current output. PIN7~ PIN14 by QD106,, QD108 QD110 QD112 ON / OFF control of backlight brightness LED, you can also adjust the PWM modulation via pin 5 10% to 100% of the output pulse width. Due to the constant current output differential output channels only 0.5V 260 mAh, which can support a wide Pan of VF. In addition, RT6033 provides dynamic headroom control (DHC) features that generate DC / DC control loop feedback signal and tune Section output voltage. RT6033 provides LED open / short circuit protection. If any channel has an open or short circuit condition occurs, this exception. Output channels will be turned off and the FAULT pin is pulled low. RT6033 also supports over-temperature protection (OTP). When OTP is triggered, the output channels will be turned off and the FAULT pin will be pulled low.

PWB LAYOUT