TOSHIBA 27WL46 - POWER SUPPLY [SMPS] SCHEMATIC (CIRCUIT DIAGRAM)

SCHEMATIC

CLICK ON THE SCHEMATIC TO ZOOM IN

Parts List - By next post

PROLOGY PAS-2150 _ ELITE 2300 - CAR AUDIO - SCHEMATIC [CIRCUIT DIAGRAM]

SCHEMATIC

CLICK ON THE SCHEMATIC TO MAGNIFY

SVEN HR-945 - POWER AMPLIFIER - SCHEMATIC - (Circuit Diagram)

POWER AMP-SCHEMATIC

CLICK ON THE SCHEMATIC TO ZOOM IN

POWER SUPPLY TROUBLESHOOTING - SHARP PN-E601_PN-E521

SMPS TROUBLESHOOTING
NO POWER_LED DOES NOT LIGHT UP

CLICK ON THE PICTURES TO MAGNIFY

OPTIONAL POWER IS NOT TURNED ON

MAIN POWER UNIT

SHARP PN-E601_PN-E521- LED BLINKS – TROUBLESHOOTING_ LCD MONITOR/EXPANSION-BOARD

LAN CONTROL DOESN'T WORK

You cannot have RS-232C and LAN control operate at the same time.
THE RED LED BLINKS

THE LED LIGHTS UP IN ORDER OF RED à GREEN à RED àGREEN

CLICK ON THE TABLES TO MAGNIFY 

AOC LE26W-154 - 26" LCD TV - MAIN POWER SUPPLY SCHEMATIC [Circuit Diagram]

POWER SUPPLY [SMPS] - SCHEMATIC

CLICK ON THE PICTURES TO ZOOM IN

TROUBLESHOOTING - AOC-LE32D****_LE42D**** - LED-LCD TV

NO POWER

CLICK ON THE CHARTS TO ZOOM IN

DELAY TO START

ABNORMAL DISPLAY

NO DISPLAY

AUDIO PROBLEM

REMOTE CONTROL MALFUNCTION

OSD UNSTABLE

HOW TO ENTER SERVICE MODE [FACTORY MODE]_AOCLE32D5520_LE42D5520 - FIRMWARE UPGRADE

FACTORY MODE [SERVICE MODE]

1. Factory Mode

Turn on the TV. Press menu key and then press number key 1+9 +9+9+back. It will achieve the factory mode.

2. ADC Adjustment (It’s no need to adjust ADC.)

3. White Balance Adjustment

(1) Enter into the factory mode :(same as the above-mentioned).

(2) Take an example of adjust Ypbpr source.

a. Select item “Source”: Ypbpr and item “Color Temp”: Normal, Adjust gain of RGB to meet spec in the below setting of Tim\pat. (COMPONENT mode: TIM = 314; PAT = 141(80IRE))

b. Select item “Source”: Ypbpr and item “Color Temp”:Warm, Adjust gain of RGB to meet spec in the below setting of Tim\pat. (COMPONENT mode: TIM = 314; PAT = 141(80IRE))

c. Select item “Source”: Ypbpr and item “Color Temp”: Cool, Adjust gain of RGB to meet spec in the below setting of Tim\pat. (COMPONENT mode: TIM = 314; PAT = 141(80IRE))

(3) Take an example of adjust VGA Normal:

a. Select item “Source”: VGA and item “Color Temp”: Normal, Adjust gain of RGB to meet spec in the below setting of Tim\pat. (VGA mode: TIM = 137; PAT = 141(80IRE)

b. Select item “Source”: VGA and item “Color Temp”: Warm, Adjust gain of RGB to meet spec in the below setting of Tim\pat. (VGA mode: TIM = 137; PAT = 141(80IRE)

c. Select item “Source”: VGA and item “Color Temp”: Cool, Adjust gain of RGB to meet spec in the below setting of Tim\pat. (VGA mode: TIM = 137; PAT = 141(80IRE)

(4) Take an example of adjust AV Normal:

a. Select item “Source”: AV and item “Color Temp”: Normal, Adjust gain of RGB to meet spec in the below setting of Tim\pat. (AV mode: TIM = 303; PAT = 141(80IRE)

b. Select item “Source”: AV and item “Color Temp”: Warm, Adjust gain of RGB to meet spec in the below setting of Tim\pat. (AV mode: TIM = 303; PAT = 141(80IRE)

c. Select item “Source”: AV and item “Color Temp”: Cool, Adjust gain of RGB to meet spec in the below setting of Tim/pat. (AV mode: TIM = 303; PAT = 141(80IRE)

(5) Take an example of adjust HDMI Normal:

a. Select item “Source”: HDMI and item “Color Temp”: Normal, Adjust gain of RGB to meet spec in the below setting of Tim\pat. (HDMI mode: TIM = 347; PAT = 141(80IRE) 

b. Select item “Source”: HDMI and item “Color Temp”: Warm, Adjust gain of RGB to meet spec in the below setting of Tim\pat. (HDMI mode: TIM = 347; PAT = 141(80IRE)

c. Select item “Source”: HDMI and item “Color Temp”: Cool, Adjust gain of RGB to meet spec in the below setting of Tim/pat. (HDMI mode: TIM = 347; PAT = 141(80IRE)

CLICK ON THE TABLES TO MAGNIFY

Note: all models of color temperature within specification, but also ensure the brightness conform to engineering specification.

FIRMWARE UPGRADE

• Press “Menu+1999” into factory menu set USB update options to “ON”
• AC on (Power plug)
• Plug the USB disk on the USB port on the side I/O port of TV. 
• TV AC power off à AC power on
• TV will upgrade by itself after detect the USB disk condition and the content of the pkg file. 
• When firmware update OK, the TV will display “firmware update finished”.       
• Remove USB disk from TV.
• Check if the software version is correct. 
• Do factory reset in user menu.
• Reset finish, AC OFF.