Sharp LC-32LE280X - Page 33

LC-32LE280X/LC-40LE280X
4 – 4
Noaudio heard(1)
No sound in the UHF/VHF reception.
NO Check TU1102 and its peripheral circuits.
YES
Is there the signal input a
t pins (98
), (99) of IC3301?
NO Check IC3301 and its peripheral circuits.
YES
stidna2071CIdna1033CIneewtebnoitcennockcehCON(1,2,3,4) of IC1702 ?niptatuptnilangisoiduaerehtsI
peripheral circuits.
YES
Is the L-ch audio signal output at pin (8),(13)
NO Check IC1702 and its peripheral circuits.
of IC1702 normal?
YES
Are the audio signal L-ch and R-ch output at (3)/(4) and (1)/(2) of
P1701 normal?
NO Check circuit between IC1702 & P1701.
YES
Check speakers and their peripheral circuits.
of IC1702 normal?
Is the R-ch audio signal output at pin (19) ,(23)
IstheIFoutputfromthetunerpin(6,7,8,9)
of TU1102asspecified?
I
2
c