NO Picture / No Sound
Is Any OSD displayed?
OK
Check IC11 pin71, 72, 73 (R, G, B out)
NO
OK
Check receiving system in MENU & execute Auto
Does the auto
Operate properly
OK
Store on m anual- program MENU
OK
Check pin40(V out 1) 1Vp- p
NO
NO Check 1 . 8V, 3. 3V, NO 5V DC Voltage
NO
Check pin18
Reset Voltage
3.3V DC |
|
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| OK | |||
| ||||||||
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|
| NO | |
| Check pin57, 58 | |||||||
|
|
| ||||||
| SCL, SDA |
|
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| ||||
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|
|
|
3.3V DC |
|
| OK | |||||
| ||||||||
RelaceIC11
Check SMPS Trans Secondary Voltage
Check IC13
(Reset IC)
Check IC12(EEPROM) & SCL, SDA Line
Go to
No Sound / Picture OK
Q501, Q503, Q504 (R, G, B out of IC11)
Check / Replace
CPT Board com ponent
- 14 -
