Components Description - Kenwood LZ-651W Service Manual

MAIN UNIT (X09-7161-00/7162-00)
Ref No. Parts No.
IC101 FA7703V
IC201 TSOP1838-NK
IC202 TC7SH08F-TE85L
IC301 TMP88CP38AF-NK
IC302 S-80845CNNB-NK
IC303 S-24CS02AFB-NK
IC401 TC4053BF (N)
IC402 BA3121F
IC405 TDA7052BT
IC501 TDA4665T
IC502 AN2546FH-A
IC503 LZ9GJ25
IC504 NJM2107F
IC505 MM1108XFFE
IC506 NJM4580V
Q101 2SJ377
Q105 2SK3416TL-NK
Q106 2SD1766
Q107 2SB1203-FA
Q108,118 2SC4081
Q112 DTC124EUA
Q113 DTA143EUA
Q115,116 2SC3518-Z-T1LK
Q201 2SC4081
Q202 DTA124EUA
Q203 DTC124EUA
Q204 2SA1576A (R,S)
Q205 DTC124EUA
Q401 DTC124EUA
Q403 DTC124EUA
Q404 DTC124EUA
Q501 2SC4081
Q503,504 2SC4081

COMPONENTS DESCRIPTION

Switching power supply control IC (Main system and the power supply for inverters are
controlled. It has the regulator of 2.2V in an inside.)
Remote control IC (In response to the infrared signal from remote control data is
transmitted to a microprocessor).
Remote control signal buffer (When the microprocessor pin No. 14 is H, remote control
signal is sent to NAVI unit)
System control microprocessor (In addition to the demand processing from remote control
etc., OSD is displayed on a liquid crystal display monitor by the RGB output data)
System reset IC
E2PROM (Such as a user setup data is back up for E2PROM memory)
C-mos analog switch (Selector of Input audio signals)
Reduces of in-phase of noise for input signal
Monophonic power amplifier of an audio power amplifier BTL system. Volume is controlled
on the voltage of VC terminal.
Base band delay line (One-line delay line)
Video signal processing IC for liquid crystal display monitor
Timing control IC for liquid crystal display monitor
VCO low path filter
Vertical synchronies separation IC (PAL/NTSC automatic distinction)
VCOM signal is received from the dual operational amplifier IC 502, and gain adjustment
and a level shift are performed.
Switching regulator
Switching regulator (Main power supply : Power MOS FET)
Power supply for COM signal line (7.5V)
Power supply for microprocessor (5V)
PWM signal buffer (from microprocessor)
Switching for inverter circuit (receiving to PWM signal from microprocessor)
Inverter voltage circuit (Switching frequency 55KHz)
ACC voltage detector
Packing detector
Muting detector
ACC voltage detector (detect voltage=9.5V)
ACC voltage high detector (17V)
Switching transistor (select to input signal NAVI or AV IN)
Audio muting transistor
Buzzer driver (BZ401)
Vertical synchronize separation
Composite synchronize buffer amp (Voltage shift 3V to 5V)
LZ-651W
Specification / Function
3