Pioneer x-rsm400dvh, Руководство по обслуживанию

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3-5
8. PWM MODULATION PART CHECK
check P 790 5 pin 9 ,1 0
3.3V
PWM MODULATION
PART CHECK
Refer to SMPS
troubleshooting
NO
NO
Check
X60 1 12.2 88 M Hz
operation
check IC 60 4
pin 86 CL K input
Check
IC1 00 (LC 87 Fxx)
pin34 : PWM R E ST
pin 86: PWM _ DSP _ DAT
pin 87: PWM _ DSP _ CL K
output
YES
YES
YES
YES
YES
YES
YES
YES
Check
IC 60 4(PS 98 3 0 )
pin 23,24,25,2 6
DATA input,
PWM wave
Check PWM
modulator output
FL : pin 7 5( + ), 7 4(-)
FD : pin 7 1( + ), 70 (-)
check other
output
Check IC 60 4(PS 98 3 0 )
VDD pin voltage (3,1 0 ,22,2 9 ,
3 9 ,4 7 ,5 6 , 6 5, 7 2, 87 , 9 4)
check X60 1 pin2 : 3.3V
OK
Replace X60 1
NO
YES
Check X60 1
12.2 88 M Hz
OK
Refer to DVD troubleshooting
NO
Check P 7 4 0 3
DVD assy communication
Check each line
resistor output
NO
Check
IC 60 4(PS 98 3 0 ) DATA
input
Replace R 67 1,R 670 ,R 66 5
NO
YES
Check line
resistor output
SDA : R 67 1,SCL : R 670
RST : R 66 5
OK
YES
OK
Replace IC 60 4
NO Check
IC 60 4(PS 98 3 0 )
YES
OK
NO
NO
YES
NO