Pioneer XV-E51 Service Manual page 91

5
7.1.3 TRUBLE SHOOTNG
Confirm the error history at first.
When a history was not displayed, refer to the following table.
No. Symptoms
Cannot power on
1
Standby indicator brinking
(DVD ERR)
2
Standby indicator brinking
(AMP ERR)
Audio is not out put
3
VIDEO no out put
4
5
6
Diagnosis Contents
Check Voltage of CN8901-17pin(VE+56) on the AF assy.
Check the stand by indicator. If the indicator brinking ,
the protect circuit working. (Stand by indicator brinking)
Check IC5501-4pin(AC PULSE).
Check IC5501-12pin,13pin (CF1,CF2)
Check IC5501-17pin(VDET) is 3.5V
Check FAN connect in M-EV51(21).
Check FAN connect in M-EV51(21).
Check IC3301,IC3401 in AMP module.
Check connection AF assy & IF assy.
Check signal waveform of CN8751 1,3,5,7,9,11pin
(C,SW,LS,RS,FL,FR) at DOLBY PROLOGIC mode.
Check signal waveform at CN8701-all pin.,
CN8751-13,15pin(ANAL,ANAR)
Are the signals output from IC11-pin 9, 8 and 7 on the FLKB Assy ?
(around 0-3V)
6
7
XV-EV51
7
8
Defectiveness Assumption
Points
M-EV51(21) , system cable
connection
AMP PROTECT , DVD POWER
SUPPLY
M-EV51(21) , system cable
connection
U-COM
1.Connection of DVDIF assy & IF
assy.
2.DVD power supply,
3.M-EV51(21) POWER SUPPLY
M-EV51(21) , system cable
connection
M-EV51(21) , system cable
connection
M-EV51(21) , system cable
connection
AF ASSY & IF ASSY
DSP ASSY
AF ASSY
IF assy & DVD IF assy
connection.
DVD IF ASSY
8
A
B
C
D
E
F
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