LG DA-W6100A Service Manual page 64

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• In Case of RX speaker, it should be checked with TX and the opposite RX speaker ON.
TX ON , RX LEFT ON, RX RIGHT ON
Check whether two RX relay get together or RX LED is turned ON.
IC207 3,5,7,9,23,24,26,28PIN power check
IC207 15PIN CLK (16MHz) check
IC202 34 PIN SCLK check
IC202 35 PIN LRCLK check
IC202 36 PIN AUDIO DATA check
IC205 45,46PIN PWM DATA check
IC204 Refer to IC204 check
RX POWER ON/OFF RY201 operation check
SPEAKER connection cable check
YES
B
YES
YES
YES
C
C259 DC3.3V check
YES
YES
NO
YES
IC204 Soldering check and Replacement
NO
YES
Digitized in Heiloo Netherland
NO
NO
NO
IC207 Soldering check and Replacement
NO
NO
CN209 3PIN HIGH Check
YES
TX ON, the opposite side RX ON Check
NO
IC205 22PIN DC3.3V Check
YES
IC205 37PIN LOW Check
YES
IC205 Soldering check and
Replacement
RY201 Replacement
- 7-3 -
Move to C
RX all kinds of power check
Refer to IC207 Check
NO
SMPS power check
NO
IC204 28PIN HIGH Check
NO
YES
Q201 Replacement
Refer to
IC208 Check