Function Mode Has No Sound (Njw1190) Ic601 - LG MCV902 Service Manual

8. FUNCTION MODE HAS NO SOUND (NJW1190) IC601

TAPE
IC201 INPUT
CHECK(HEAD INPUT) "A"
DECK 32, 39 "B" DECK
34, 37
YES
IC201 OUTPUT
CHECK(5, 26PIN)
YES
IC601 3, 36PIN
INPUT SIGNAL CHECK
YES
IC601 17, 22PIN
OUTPUT SIGNAL
CHECK
YES
DECK OUTPUT
NO
DECK HEAD WIRE
CONNECTION STATE CHECK
NO IC502 10PIN
(PB MUTE) STATE
CHECK
IC502 4PIN(REC SW)
"HIGH" CHECK
NO
IC601(NJW1190)
TROUBLESHOOTING CONSULT
3-5
NO
YES
NO
IC502 2PIN/3PIN
CHECK (DATA/CLK)
YES
IC502 16PIN VDD CHECK
YES
IC502 EXPEND IC CHANGE
IC502 4PIN(REC SW)
"LOW" STATE REC
YES
Q212(C) "HIGH" CHECK
YES
Q213(C) "LOW" CHECK
YES
IC502 13PIN
"REC-BAIS" HIGH CHECK
YES
L203(4.7mH) COIL
VIBRATION CHECK
YES
IC601 7/32 INPUT
REC SIGNAL CHECK