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51GT-25 (serv.man5). - Part 4 - Schematic diagrams (21-30) - Sharp TV Service Manual (repair manual). Page 8

Read Sharp 51GT-25 (serv.man5) Service Manual online

28
51GT-25H
    NO FUNCTION(NO SOUND AND NO PICTURE)
 Yes, red
  Not light
  Approx. 0 V
 Approx. 8 V
 Check R204, Q209
 and Q500. 
 Approx. 0 V
Approx. 3.3 V
  Approx. 0 V
 Check R737, D755, 
Q709 and IC1001.
Check IC201, IC1001, 
IC1002
  Normal
Broken
 Check Q701,
 D718, C718 
and
 Q601
Normal
Broken
Check D708, 
C711
 and IC701
 Check Q601, 
D708
 and C711
Check F701,
R703 and 
Q701
Is D1011 
(LED) on a 
light?
Check D724
Check Q711 
emitter 
voltage
Check C206 
Voltage
Check Q709 
emitter 
Voltage
Check R737, 
D713,Q704,
IC1001 and 
IC1003.
TROUBLESHOOTING TABLES.
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