Troubleshooting - Yamaha DVR-S60 Service Manual

DVR-S60/NX-SW60

TROUBLESHOOTING

General flow
AC-CORD PLUG
IC411 IC601 +5V POWER ONLY
IC411 RESET
X4101,X4102 CLOCK
IC411 ACTIVE
IC601 COMMUNICATION
POWER SUPPLY;STANDBY mode
IC411 ACTIVE/P-CON;LOW
±12V/-30V/FIL/
DVD-POWER(D5V/DAC5V/+3.3V/A5V/A9V);OFF
STANDBYLED LIGHT
VOLUME LED;OFF
POWER KEY PRESS
DVD FUNCTION
P-CON;HIGH
±12V/-30V/FIL;ON
DVD-POWER;ON
STANDBY LED OFF
VOLUME LED ON
IC411 STANDBY DATA WAIT
IC431 IC434 IC435 IC221COMMUNICATION
INITIALIZE ADAC(IC861 IC817)
RESET LOADER
READ/WRITE DATA IN EEPROM(IC815)
IC801 START COMMUNICATION WITH IC411
FROM MPU STANDBY DATA SEND
IC411 STANDBY DATA RCVD
IC411 VFD DATA RCVD
IC411 VFD DATA SEND
IC601 VFD DATA RCVD
DISPLAY OPENING
START CONTROL OF LOADER
PICK INITIALIZE SPINDLE ROTATE
DISC Y/N
Y
N
VFD INDICATE VFD INDICATE
"NO DISC" "READING"
PLAYBACK MODE
42
IC411 SYSCON D6010 I R
X4101 SYS-CLK IC801 PANTELA
X4102 SUB-CLK IC815 EEPROM
IC601 VFD-DRV IC871 FLASH
IC431 VOL-IC IC881 FLASH
IC435 SURR-IC IC806 SDRAM
IC221 VIDEO-SW IC807 SDRAM
IC861 6CH-DAC IC203 TU-PLL
IC817 2CH-DAC
• IC411 VDD/RESET/OSC CONFIRM
• IC411 COMMUNICATION CONFIRM
• P-CON CONFIRM
• LED PERIPHERAL CIRCUIT CONFIRM
VIDEO1/VIDEO2/TUNER FUNCTION
• POWER KEY CONFIRM
• IC601 COMMUNICATION CONFIRM
• LED PERIPHERAL CIRCUIT CONFIRM
• P-CON/±12V/-30V/FIL CONFIRM
• PROTECT CIRCUIT CONFIRM
VIDEO1/VIDEO2
• IC441 IC442 IC443 CONFIRM
IC431 IC435 IC221COMMUNICATION
IC411 VFD DATA SEND
• VDD/CLOCK CONFIRM
IC601 VFD DATA RCVD
• IC801 PERIPHERAL CONFIRM
VFD INDICATE"VIDE0 1" OR "VIDEO 2"
• COMMUNICATION LINE CONFIRM
• REMOCON NG →IC411 & D6010 PERIPHERAL CONFIRM
• REMOCON OK →IC411 PERIPHERAL CONFIRM
*
• IC601&IC411 PERIPHERAL CONFIRM
• -30V FILAMENT VOLTAGE CONFIRM
• COMMUNICATION LINE CONFIRM
• IC801 IC871 IC881 IC806 IC807 BUS-LINE CONFIRM
• LOADER CONFIRM
• COMMUNICATION LINE CONFIRM(FFC)
P-CON;HIGH
±12V/-30V/FIL;ON
DVD-POWER;OFF
STANDBY LED OFF
TUNER
IC431 IC435 IC221IC203 COMMUNICATION
IC411 VFD DATA SEND
IC601 VFD DATA RCVD
NG *
VFD INDICATE "FM ***.*MHz" OR "AM ****kHz"
• POWER KEY CONFIRM
• IC601COMMUNICATION CONFIRM
• LED PERIPHERAL CIRCUIT CONFIRM
• P-CON/±12V/-30V/FIL CONFIRM
• PROTECT CIRCUIT CONFIRM
• IC441 IC442 IC443 CONFIRM
NG *