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Car Audio DVD520
TABLE OF CONTENTS
Page
Technical Specificatio ns ............. .................. .................. ...1-2
Measurem ent setup . .................. .................. .. ...... .......... ...1-3
Service A ids, Safety I nstruction, et c ....... ...... .. ........... 1-4 to 1-5
Preparati ons & Contro ls .............. ......... ...... ... ........... 1-6 to 1-8
Maintena nce & Troub leshooting .. ............... .. .... ............... .. 1-9
Disassem bly Instructi ons & Servic e positions . .... ...... ........ ..... 2
Set Block diagram .... .................. ................ .. .... .............. ..... 3
Set Wirin g diagram ... .................. ....... ...... ..... .................. ..... 4
Key Board ................ .......................... ................................. 5
Servo Board ............. ........................... ...... .......................... 6
Main Boa rd .............. .................. ......... ...... ... .................. ..... 7
Set Mech anical Explo ded view & p arts list .... .. .... .............. ...... 8
3 3
SET BLOCK DIAGRAM
D 5V
D9V
GND
DVD-R
AM /FMOUT
KST-6102
LCD Displ ay
T DA7479
SINGLE CHIP RDS DEMODULATOR+FILTER
PA0
PA1
K IN 0-1
PC 7/SS
C H ICK-SW
1MX16X4BANK E JEC T-SW
L OAD-SW LCD Data
(TSOP1154PIN)
SDRAM DVD-R EN LCD Cl ock
D V D-CLK
XI R
CS LCD CE LCD Driver
DVD-L
DATA L C 6523
K V5V- ON
M MCU D C 5V
VIDEO-OUT
MCU D C 5V ACC
M CU
M u te
VIDEO-OUT ST7 2 F3 21 A R9 T6
AM 5668
Motor Driver F/ L Vcc1 Vcc2
DVD- R ST-BY
SPH E8281D
F/ L
MUTE N.C.
FLASH MX29LV800T F/ L
(TSOP48PIN) CDL
5
CDG CDR
4 3
SMUTE
11 17
OUT1+
IN1
ROM
OUT LR OUT LR
AM
8 MIXING LOUDNESS VOLUME
SOFT TREBLE BASS
OUT LF
19
16
OUT LF
F/ R OUT1-
STAGE MUTE OUT RR OUT RR
18
1 OUT RF OUT RF
CASS R PW-GND F/ R
DV D-L 2 INPUT
F/ R
CASS L
MULTIPLEXER
+
PHONE
12
SCL
Pre-Amp OUT2+
PHONE 7 AUTO ZERO BEEP I2C BUS 13
SDA
RC4558 IN2
(MPIN)
OUT2-
AUX- R AUX/CDC-R PHONE GND 6
(MPOUT) FM R
FML PW-GND
R /R
AUX-L 9 PILOT
DEMODULATOR
+ STEREO ADJUST 25KHz S&H
HIGH
CUT
R/R R /R
IN3
OUT3-
80KHz
MPX CANCELLATION
+ STEREOBLEND LP CONTROL OUT3+
AUX/CD C-L LP
CDC-R SUPPLY
PW-GND
15 PIL D
OUT4+
C DC-L VS PLL
DET MULTIPATH-
DETECTOR
NOISE
BLANKER PULSE A
R/L IN4
CDC-ON
FORMER
OUT4- R /L
14 20 10
PW-GND
D5V GND CREF LEVEL R/L
AC-GND SVR TAB S-GND
AP1507 Electric Selector & Volume
GN D Po we r Amplif ier
TDA7460 Pre-Amp
CD4066BC
QUAD BILATERAL RC4558
TD A738 4
D9V
DVD +9V Cont rol led Power F/L F/R
D C 11 ~16V Lin e- Output
D9V
DC 11 ~16V Pow er Supply B5V
D5V
Gro und
Su b Out
Pre-Amp
RC4558
4 4
SET WIRING DIAGRAM
5-1 5-1
LCD PIN CONNECTION
KEY BOARD
TABLE OF CONTENTS
LCD Display..........................................................5-1
Front board...........................................................5-2
connector board....................................................5-2
Key Board Circuit Diagram......................................5-3
Key Board Layout Diagram......................................5-4
Elect rical Parts List.................................................5-5
5-2 5-2
FRONT BOARD - CIRCUIT DIAGRAM CONNECTOR BOARD - CIRCUIT DIAGRAM
FRONT BOARD - LAYOUT DIAGRAM CONNECTOR BOARD - LAYOUT DIAGRAM
5-3 5-3
KEY BOARD - CIRCUIT DIAGRAM
6-2 6-2
SERVO BOARD - CIRCUIT DIAGRAM
6-3 6-3
SERVO BOARD - CIRCUIT DIAGRAM
6-4 6-4
SERVO BOARD - CIRCUIT DIAGRAM
7-2 7-2
CIRCUIT DIAGRAM
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