LG LM-U2350A - MIC; Tuner

- 2-6 -
TUNER
TU101 3 /5 SIGNAL CHECK
IC601 2,37 PIN SIGNALINPUTCHECK
IC601 17,22 PIN OUTPUT SIGNAL
CHECK
TU101 2 PIN "+9V"
VOLTAGE CHECK
TU101 6,7,8,9 PIN CHECK
(PLL-CE, PLL-DI, CLK, PLL-DO)
TUNER MODULE CHANGE
TUNER OUTPUT
MIC
CN303 7 PIN "MIC-SIGNAL" CHECK
IC601 44 PIN SIGNAL CHECK(OW601
PATTERN)
IC601 17,22 PIN OUTPUT SIGNAL
CHECK
CN303 4 MIC-SENSE CHECK
PN400 3 PIN "+12V"CHECK
TR CHANGE
MIC MUTE CHECK(Q409/ Q408)
IC402 8 PIN SIGNAL INPUT CHECK
PN400 9 "VOL-IN"CHECK
IC402 2 PIN SIGNAL INPUT CHECK
PN400 10 PIN "VOL-OUT"CHECK
MIC OUTPUT
<MIC PCB>
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO