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SONY KDFE55A20
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of SONY KDFE55A20 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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Text excerpt from page 10 (click to view)
KDF-E55A20/E60A20
Clearing the Result Display To clear the result display to â0â, press the buttons on the Remote Commander sequentially when the diagnostic screen is displayed, as shown below: 1. If the screen is already displayed, proceed to step 3. If not, Power off (Set to Standby mode). 2. Press DISPLAY Channel 5 Sound Volume POWER 3. Press Channel 8 ENT

Clearing the Self-Diagnostic Screen The self diagnosis screen display is cleared by turning off the set using the Remote Commander or the power switch. Self-Diagnostic Circuit Self-Diagnosis Function Operation 3 4 4 : : : Lamp cover Fan Temp The rib at the back of the lamp cover closes the SW on the T board to ground pin 3 of CN8001. It is monitored by the DE-micro (pin 94 of IC6902) and turns off the lamp when it is opened. Fan rotation is detected by "FAN-PROT" and the DE-micro (pin 92 of IC6902) turns off the lamp when it is "high". When the temperature sensor on the H4 board detects high temperature, or IIC-E line connector (CN6022:GI board, CN44:H3board/H4board) is not seated securely, the DE-micro turns off the lamp. When the "LAMP-PROT" (pin 95 IC6902) is low, the lamp is not turned on. If the "LAMP-HVDET" (pin 96 IC6902) is low at the same time, it is classified as no high voltage of the lamp driver. When no "SETIIV " is detected, pin 129 of IC3002 is low and it turns off the main power. When DC voltage is detected at the speaker or woofer outputs, pin 128 of IC3002 is low and it turns off the main power. When overvoltage of "+3.3V" or "+2.5V" is detected, pin 126 of IC3002 is low and it turns off the main power. When no "Q 5V" is detected, pin 127 of IC3002 is low and it turns off the main power. When the "LAMP-PROT" (pin 95 IC6902) is low, the lamp is not turned on. If the "LAMP-HV-DET" (pin96 IC6902) is high at the same time, it is classified as no lamp or a dead lamp.

5

:

Lamp driver

6 7 8 10 LAMP

: : : : :

Low B error Audio D-OVP DTL-OVP Lamp

KDF-E55A20/E60A20

10

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