14U10/15
14U20/25
NO
Is the white balance properly adjusted ?Readjust the white balance.The picture colour is yellow.Check Q872, Q887 and its adjacent circuits.
(Continued)
YESYES
20-2
"PAL"Normal
Check IC801 and Bias control circuit.
Check X1001.(12MHz)
Is some colour produced in B/W broadcast reception ?
The picture colour is magenta.Check Q870, Q885 and its adjacent circuits.
NO
NO SPECIFIC COLOURNO SPECIFIC COLOUR
(NO COLOUR SYNCHRONIZATION)
TROUBLE SHOOTING TABLE
Check IC801, R801, R802, R803, D804, D805, D806 and Q801.The picture colour is cyan.
Check Q871, Q883 and its adjacent circuits.
Abnormal
(Continued)Check IC501.
20-1
Check IC501.
Readjust Vertical size. (Bas Data)
Check pins(16), (17) and (34) of IC801.Vertical Linearity and Size is abnormal.Check R504, R503, R506, R513, C517 and D501.
NO VERTICAL SCAN
NEITHER VERTICAL NOR
AND VERTICAL LINEARITY
DEFECTIVE VERTICAL AMP.
Normal
HORIZONTAL SYNCHRONIZATION
Check C503 and C507.
TROUBLE SHOOTING TABLE
Sync. Separator Circuit.
CIRCUIT TO BE CHECKED: ?
20 |
ACEC
