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