Yamaha DVX-S60, Service Manual

Page: 43 / 108

DVR-S60/NX-SW60
43
TROUBLESHOOTING
Audio Part TUNER OUTPUT:NG TUNER OUTPUT:NG TUNER OUTPUT:NG
VIDEO1,2 OUTPUT:OK VIDEO1,2 OUTPUT:NG VIDEO1,2 OUTPUT:NG
IC817 2ch DAC PCM1748E IC435 DVD/CD OUTPUT:OK CD OUTPUT:NG DVD/CD OUTPUT:NG
IC861 6ch DAC PCM1602Y IC431 DVD(DOLBY DIGITAL):OK
IC801 MPEG NDV8501 IC434
IC233 5V REG. KIA78R05PI IC401 IC401,IC402 PERIPHERAL
IC819 AND GATE 7SH08FU IC402 CN202 Pin5 N Q410 3 PERIPHERAL L,R SIGNAL LINE CONFIRM VIDEO1 N +12V,-12V N CIRCUIT CONFIRM
IC201 FM F.E. TA8176S IC441 5.6V ? CONFIRM (BETWEEN IC431Pin10,21 AUDIO OUT IC401 Pin3,IC402 Pin3
IC202 IF/MPX LA1844ML TO IC435 Pin74,75) OK? CONFIRM F4102,F4101
IC203 TU PLL LC72121M Y CONFIRM
Y
IC201,IC202,IC203 Y
PERIPHERAL CONFIRM IC431 PERIPHERAL CIRCUIT
CONFIRM
TUNER OUTPUT:OK IC431 NG
VIDEO1,2 OUTPUT:OK IC435
DVD/CD OUTPUT:NG L,R SIGNAL OUTPUT N
IC435 Pin1,2
CONFIRM
Q4307,Q4308 PERIPHERAL
DVD(DOLBY DIGITAL):OK DVD(DOLBY DIGITAL):NG DVD(DOLBY DIGITAL):NG Y IC435 N CIRCUIT CONFIRM
CD:NG CD:OK CD:NG POWER SUPPLY Pin21,68
CONFIRM PR411 CONFIRM
IC431 IC431 PERIPHERAL CIRCUIT
L,R SIGNAL OUTPUT N CONFIRM Y
DAC OUTPUT Y DAC-OUTPUT SOCKET DAC OUTPUT Y DAC-OUTPUT SOCKET LOADER CHANGE Y LOADER CHANGE IC431 Pin5, 26 IC431 NG
CONFIRM LINE CONFIRM CONFIRM IC861 Pin9,10,11 LINE CONFIRM OK? CONFIRM IC435 PERIPHERAL CIRCUIT
IC817 Pin7,8 ,12,13,14 CONFIRM
N Y IC435 NG
N N
A12V LINE CONFIRM
IC817 pin FLOATING CONFIRM IC861 pin FLOATING CONFIRM A12V,DAC5V N DAC5V LINE CONFIRM
IC817 BCK, Y PCMCLK(Pin16) CONFIRM IC861 BCK, PCMCLK(Pin38) CONFIRM CONFIRM
DATA,LRCK CONFIRM DATA,LRCK CONFIRM Y CN818 Pin1,5 IC233 PERIPHERAL CIRCUIT
Pin2,3,4 PERIPHERAL CIRCUIT CONFIRM Pin40,45,46,47,41 PERIPHERAL CIRCUIT CONFIRM CONFIRM
IC817 NG IC861 NG Y IC441 N
N POWER SUPPLY P in2,15 PR421,PR422 CONFIRM
N MUTE CIRCUIT CONFIRM
IC801 ACLK, Y IC819 PERIPHERAL CIRCUIT
VIDEO PWB(1AD4B10D039*C)
IC801 ACLK, Y ACLK,AOUT3,LRCLK SIGNAL AOUT3,LRCLK CONFIRM CONFIRM
CN434 +12V,-12V CONFIRM
Y
AOUT3,LRCLK CONFIRM LINE CONFIRM IC801 ACLK, ACLK,AOUT2,AOUT 1,AOUT0, Pin78,71,79 DAC IC817 IC861 NG
L,R SIGNAL INPUT N
Pin78,71,79 AOUT2,AOUT1,AOUT0, Y LRCLK SIGNAL LINE CONFIRM
CN43 4 Pin1 ,3 BETWEEN VIDEO PWB TO
IC441 PERIPHERAL CIRCUIT
LRCLK CONFIRM Pin78 N
CONFIRM AMP PWB(1AD4B10D040*A)
CONFIRM
N ,72,73,74,79
CONNECTION CONFIRM
IC441 NG
IC801 pin
Y
IC801 pin N FLOATING CONFIRM
FLOATING CONFIRM IC801 NG
IC801 NG IC801 pin
IC441
FLOATING CONFIRM
L,R SIGNAL OUTPUT Y
IC801 NG
IC441 Pin8,13
CONFIRM
N
VIDEO PART
MUTE CIRCUIT CONFIRM
NO PICTURE NO COLOR or ABNORMAL AUDIO OK
AUDIO OK
N CRYSTAL RESONATOR IC801 Y Pin108-120 PERIPHERAL
VIDEO1 IC221 PERIPHERAL CIRCUIT X8101 27MHz CHANGE VIDEO OUTPUT CONFIRM
VIDEO INPUT N CONFIRM OK? OK?
MONITOR OUT IC221 NG
OK? Y N
Y IC801 OUTPUT LINE CONFIRM IC801 OUTPUT LINE CONFIRM
IC801 Y Pin108-120 PERIPHERAL
IC801 OUTPUT LINE CONFIRM VIDEO OUTPUT CONFIRM
IC801 Y Pin108-120 PERIPHERAL NORMAL OK?
VIDEO OUTPUT CONFIRM LPF CONFIRM
NORMAL OK? N
LPF CONFIRM
N IC801 pin
FLOATING CONFIRM
IC801 NG
Y
LOADER CHANGE LOADER CHANGE
OK?
N
IC801 pin
FLOATING CONFIRM
IC801 NG
PRO LOGIC DECODER M62464BFP
FUNCTION & VOLUME LC75342M
PRESET EQ TA2078B
+12V REG. KIA7812PI
-12V REG KIA7912PI
POWER AMP LM4766