Sharp 21ES251E User Manual

17-1 17-2
NEITHER VERTICAL NOR
HORIZONTAL SYNCHRONIZATION
CIRCUIT TO BE CHECKED:
Sync. Separator Circuit.
Check pins (9), (13), and (14) of IC801.
Vertical linearity and size are abnormal.
DEFECTIVE VERTICAL AMP.
AND VERTICAL LINEARITY
Re-adjust vertical size. (Bus Data)
NO
VERTICAL SCAN
Check R503, R515, R513
C515and
R514.
R520.
Check C511
NO SPECIFIC COLOUR
Is some colour produced in B/W broadcast reception ?
Is the white balance properly adjusted ?
Re-adjust the white balance.
The picture colour is yellow.The picture colour is magenta.The picture colour is cyan.
Check Q855 and its adjacent circuits.
Check Q844 and its adjacent circuits.
Check Q853 and its adjacent circuits.
Check IC801.
Check IC1001 and bias control circuit.
NO COLOUR
Check X801 (4.43MHz)
Check Q202 and peripheral circuit

Sharp 21ES251E Specifications

General

Brand	Sharp
Model	21ES251E
Category	TV
Language	English