Kenwood KDC-MP222, Руководство по обслуживанию

Страница: 3 / 28

3
COMPONENTS DESCRIPTION
●
SWITCH UNIT (X16-2052-71/2362-70)
Ref. No. Function Operation
IC1 LCD Driver
IC2 Remote-control IC
Q1 Key-scan Start SW "ON" when the base goes "L".
Q2 Key-illuminations SW (GREEN) ON (Key-illuminations Green) when the base goes "H".
Q3 Key-illuminations SW (RED) ON (Key-illuminations RED) when the base goes "H".
●
ELECTRIC UNIT (X25-9622-71/9812-70)
Ref. No. Function Operation
IC1 System MI-COM
IC2 E-VOL. & N.C. MPX
IC3 Power Supply IC
IC4 Power IC
IC6 Analog SW (Mute logic)
IC7 RDS Demodulator
IC8 Reset IC “L” : detection voltage below 3.6V
IC9 CD mechanism 5V AVR
Q1 SERGE Det. ON when the base goes “Hi”.
Q2 B.U. Det. ON when the base goes “Hi” during BU applied.
Q3 ACC Det. ON when the base goes “Hi” during ACC applied.
Q4 SW 5V ON when the base goes “Lo”.
Q21 SERVO +B AVR Output voltage 7.4V
Q22 SW 14V ON when the base goes “Hi”.
Q41 MECHA 5V AVR SW ON when the base goes “Lo”.
Q101 Buffer The buffer for composite signals.
Q151 Panel 5V SW ON when the base goes “Lo”.
Q201 Noise buffer
Q350 Mute driver for Audio mute SW ON when the base goes “Lo”.
Q351 Pre mute SW
Audio Pre-output is muted when the base goes “Hi”.
Q352 Pre mute SW
Q401 DSI ILLUMI SW ON when the base goes “Lo”.
KDC-M4524/G/Y/GY
www. xiaoyu163. com
QQ 376315150
9 9
2
8 9
4 2
9 8
TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299