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No sound in the UHF/VHF reception.
Is the IF output from the tuner pin (10) of TU1101 as specified?
Is there the SIF signal input at pins (77), (78) of IC3301?
I
t s
e h
e r
a
d u
o i
i s
n g
l a
t n i
u p
a t
p t
( n i
) 6
Is the L-ch audio signal output at pin (26),(27)
of IC1701 normal?
Is the R-ch audio signal output at pin (10
of IC1701 normal?
Are the audio signal L-ch and R-ch output at (3)/(4) and (1)/(2) of
P1701 normal?
Check speakers and their peripheral circuits.
No audio heard (1)
YES
YES
f o
C I
1
0 7
? 1
YES
(30),(31)
(11), (14)
(15),
YES
YES
NO
Check TU1101 and its peripheral circuits.
NO
Check IC3301 and its peripheral circuits.
N
O
C
e h
k c
c
n o
e n
i t c
n o
peripheral circuits.
NO
Check IC1701 and its peripheral circuits.
NO
Check circuit between IC1701 & P1701.
7 – 4
LC-32LE350M
e b
w t
e
n e
C I
3 3
1 0
a
d n
C I
7 1
1 0
a
d n
s t i
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