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(TV_SIDE, AUDIO) IS NOT DISPLAY CORRECTLY
Input signal good?
J1 input correct?
U1.U2 output correct?
U7.U8 signal correct?
U7.U8 Volt correct?
U7.U8 output correct?
CONFIDENTIAL
DO NOT COPY
–
Start
Yes
Yes
Yes
Yes
Yes
Yes
END
N0
1. Check Audio source
2. Check the player of source
N0
1. Check signal of Main Board
2. Check signal of Audio Board (J1)
3. Check the wire of Main Board to
Audio Board
N0
1. Check the output volt of U1 and U2.
N0
1. Check C200(Ch R) and C201(Ch
L) and C271 (Ch CT)
N0
1. Check VCC of U7 and U8.
2. Check 1/2VCC of U7 and U8
(R202.R203.R271).
3. Check ZD2(Ch R) and ZD3(Ch L)
and ZD4 (Ch CT)
N0
1. Check feedback resistor and
capacitor.
Page 9-7
File No. SG-0246
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