DOWNLOAD Sharp 37GQ-20 (serv.man3) Service Manual ↓ Size: 1.33 MB | Pages: 28 in PDF or view online for FREE

Model
37GQ-20 (serv.man3)
Pages
28
Size
1.33 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / CTR / (including circuit diagram and parts listing) for the version 02 chassis
File
37gq-20-sm3.pdf
Date
PREV: Sharp 37GQ-20 (serv.man2) Service Manual

Sharp 37GQ-20 (serv.man3) Service Manual ▷ View online

25
37GQ-20H
NO VERTICAL SCAN
YES
NO
 Check  D709, D710, IC501
DEFECTIVE VERTICAL AMP.
AND VERTICAL LINEARITY
Readjust Vertical Size.
   
Check D505, D506
Check 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
26
37GQ-20H
NO SPECIFIC COLOUR
Is
some colour
produced in B/W Broadcast 
reception?
YES
NO
Check IC801, C812,
C813, R813, X801
Is 
the white 
balance properly 
adjusted?
YES
NO
Readjust The White 
Balance.
The Picture Colour is
Blue or Yellow.
The Picture Colour is
green or magenta.
The Picture Colour is
Red or cyan.
Check Q871, Q883 and 
their adjacent circuits.
Check Q870, Q885 and 
their adjacent circuits.
Check Q872, Q887 and 
their adjacent circuits.
UNLOCKED COLOUR
(NO COLOUR SYNCHRONIZATION)
Check setting of Colour 
Standard in Service 
Mode.
Normal
Check IC801, C812,
C813, R813, X801
27
37GQ-20H
NOTES:
22
37GQ-20FP
RECICLED PAPER
PRINTED BY:                           ON:
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