- 3 -
- 2 -
TROUBLE SHOOTING
5V LINE CONFIRM
3.3V LINE CONFIRM
IC493,494 PERIPHERAL
CIRCUIT CONFIRM
LOADER CHANGE
MUTE CIRCUIT
IC881 PERIPHERAL CIRCUIT
CONFIRM
DAC IC871 NG
DAC IC871 PERIPHFRAL CONFIRM
DAC IC871 NG
3.3V,5V
CONFIRM
CN871 Pin5,6
LOADER CHANGE
OK?
IC800 AMCLK, ALRCLK,
AOUT0,ML,MC,MD1
CONFIRM
IC800 Pin
FLOATING CONFIRM
IC800 NG
VIDEO COMPOSITE OUT ; OK
TUNER OUTPUT ; OK
AUX OUTPUT ; OK
DVD/CD OUTPUT ; NG
IC871 Pin7,8
CONFIRM
N
Y
N
N
N
Y
Y
Y
5.6V,9V,
±
12V ; ON
5.6V,9V ; ON /
±
12V ; OFF
IC470 RESET
X4700 CLOCK
IC470 ACTIVE
IC601 COMMUNICATION
POWER SUPPLY ; STANDBY mode
IC470 ACTIVE / P-CON ; LOW
DVD-PCON ; OFF
AC CORD PLUG
UK,XE,JP ONLY
P-COM ; HIGH
DVD-PCON ; HIGH
IC470 STANDBY DATA WAIT
±
12V ; ON (UK,XE,JP)
IC480 COMMUNICATION
INITIALIZE ADAC (IC871)
RESET LOADER
READ,WRITE DATA IN EEPROM (IC801)
IC800 START COMMUNICATION WITH IC470
START CONTROL OF LOADER
PICK INITIALIZE SPINDLE ROTATE
IC601 LCD DATA RCVD
DISPLAY OPENNING
PLAYBACK MODE
FROM MPU STANDBY DATA SEND
IC470 STANDBY DATA RCVD
IC470 LCD DATA RCVD
IC470 LCD DATA SEND
POWER KEY PRESS
DISC Y/N
LCD INDICATE
"READING"
LCD INDICATE
"NO DISC"
NG
N
DVD FUNCTION
IC470 VDD,RESET,OSC CONFIRM
IC470 COMMUNICATION CONFIRM
P-CON CONFIRM
NG
NG
*1
IC601 & IC470 PERIPHERAL CONFIRM
COMMUNICATION LINE CONFIRM
VDD,CLOCK CONFIRM
IC800 PERIPHERAL
CIRCUIT CONFIRM
POWER KEY CONFIRM
IC601 COMMUNICATION
CONFIRM
±
12V P-CON CONFIRM
DVD-P-CON CONFIRM
(IC493,IC494,IC495 etc)
FM,AM,AUX (VIDEO,TV)
NG
NG
NG
IC800,IC818,IC822 BUS-LINE CONFIRM
NG
LOADER CONFIRM
COMMUNICATION LINE CONFIRM (FFC,WIRE)
P-COM ; HIGH /
DVD-PCON ; LOW
IC470 STANDBY DATA WAIT
±
12V ; ON(UK,XE,JP)
IC480 COMMUNICATION
IC470 LCD DATA SEND
IC601 LCD DATA RCVD
LCD INDICATE "AUX"
NG
NG
IC480 COMMUNICATION
IC470 LCD DATA SEND
IC601 LCD DATA RCVD
LCD INDICATE "FM" or "AM"____k(M)Hz
NG
POWER KEY CONFIRM
IC601 COMMUNICATION
CONFIRM
±
12V,P-CON CONFIRM
TUNER
AUX (VIDEO,TV)
*1
*1
COMMUNICATION LINE CONFIRM
REMOCON NG IC470 & DS601 PERIPHERAL CONFIRM
REMOCON OK IC470 PERIPHERAL CONFIRM
IC470
X4700
IC480
IC601
IC871
IC801
IC494
IC495
IC241
DS601
IC800
IC818
IC822
IC490
REG.
REG.
TU-PLL
IR
DVD-MPU & MPEG
FLASH
SDRAM
SW-REG.
IC492
SHUNT-REG.
SYSCON
SYS-CLK
FUNCTION
& VOLUME
LCD-DR
IC481
SURROUND
V
2CH-DAC
EEPROM
IC493
REG.
Y
IC490,IC492 PERIPHERAL
CONFIRM
IC480 PERIPHERAL CONFIRM
IC211,IC231,IC241,(IC251)
IC211,IC231,IC241,(IC251) NG
PERIPHERAL CONFIRM
TUNER OUTPUT ; NG
AUX OUTPUT ; OK
DVD/CD OUTPUT ; OK
CN241 Pin9,10
5.6V,12V OK?
Y
N
N
CRYSTAL RESONATOR
CHANGE
IC800 NG
FLOATING CONFIRM
IC800 NG
NO COLOR or ABNORMAL
X8230
27MHz
OK?
Y
Y
N
LOADER CHANGE
IC800 OUTPUT LINE CONFIRM
Pin169~173
CONFIRM
NPF CONFIRM
LOADER CHANGE
OK?
IC800 Pin
FLOATING CONFIRM
IC800 NG
IC800
VIDEO OUTPUT
NORMAL OK?
N
N
Y
NO PICTURE
AUDIO OK
Y