Sharp LC-26SB14U Service Manual - Page 19

But The Audio Does - troubleshooting

Get Sharp LC-26SB14U - 26inch LCD TV PDF manuals and user guides View all Sharp LC-26SB14U manuals
Add to My Manuals
Save this manual to your list of manuals

Page 19 highlights

TROUBLESHOOTING GUIDE THE PICTURE APPEARS, BUT THE AUDIO DOES NOT APPEARS. (AT RF MODE) No Is CP302 connected? Yes Is there signal at pins Yes 1 and 4 of CP302? No Yes Is there signal at pins 2 and 5 of IC302? No Is there signal at pins Yes AA3 and AA4 of IC2801? No Is there signal at pins 1 Yes and 2 of IC6551? No Is there signal at pin Yes 3 of IC6552, IC6553? No Is there signal at pin Yes 5 of TU5801? No Change TU5801. Connect CP302. Change SP301 and SP302. Check IC302 and peripheral circuit. Check Connection of CP4302. Check IC6551 and peripheral circuit. Check IC6552, IC6553 and peripheral circuit. Check IC5801 and peripheral circuit. E-2

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
TROUBLESHOOTING GUIDE
THE PICTURE APPEARS,
BUT THE AUDIO DOES NOT
APPEARS. (AT RF MODE)
Is CP302 connected?
Is there signal at pins
1 and 4 of CP302?
Is there signal at pins 2
and 5 of IC302?
Is there signal at pins
AA3 and AA4 of
IC2801?
Connect CP302.
Change SP301 and SP302.
Change TU5801.
Is there signal at pins 1
and 2 of IC6551?
Is there signal at pin
3 of IC6552, IC6553?
Check IC302 and peripheral
circuit.
Check Connection of CP4302.
Check IC6551 and
peripheral circuit.
Check IC6552, IC6553 and
peripheral circuit.
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
Is there signal at pin
5 of TU5801?
Check IC5801 and peripheral
circuit.
Yes
No
E-2