Service manual

25
37GQ-20H
NO VERTICAL SCAN
YES NO
Check D709, D710, IC501
DEFECTIVE VERTICAL AMP.
AND VERTICAL LINEARITY
Readjust Vertical Size.
Check D505, D506Check Q505, Q507, Q509
NEITHER VERTICAL NOR
HORIZONTAL SYNCHRONIZATION
Check IC801, C815, C816, R818
Vertical size is abnormal Vertical linearity is abnormal
Is IC501
bias normal?
Check R510, Q501,
Q502, Q503