3. NO VERTICAL SCANING(ONE HORIZONTAL LINE ON SCREEN)
CHECK / REPLACE
P401 & DY 
]
CHECK VERTICAL Vcc
+16.5V AT PIN3
&+48V AT PIN6 OF I301(TDA 8356)
|
|
|
|
|
|
| NORMAL |
|
| ABNORMAL | |
CHECK SIGNAL |
|
| CHECK / REPLACE | ||
AT PIN1 & PIN2 |
|
| D401(BYV95C) | ||
OF I301 [REFER TO |
| D409(BYV95C) | |||
| |||||
WAVEFORM | ] |
| R303(1W 15K) | ||
|
|
|
|
|
|
|
|
|
| NORMAL |
CHECK / REPLACE |
| CHECK SIGNAL | ||
| CRT |
| AT PIN7 OF I301 | |
|
|
|
|
|
| NORMAL |
|
| |
|
|
|
| ABNORMAL |
|
|
| CHECK / REPLACE | |
|
|
| R304, R305 | |
|
|
| C304, R307 | |
|
|
|
|
|
ABNORMAL
CHECK OUTPUT
WAVEFORM AT PIN46,
PIN47 OF I501
|
|
|
| ABNORMAL | |
| NORMAL |
|
| ||
CHECK / REPLACE |
| CHECK / REPLACE |
| ||
I301 |
| I501 |
| ||
| |||||
|
|
|
|
|
|
|
|
|
|
|
|
OK
42
