Hitachi DV-P415U, Service Manual

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T
roub
leshooting
5-6
No Power
(Standby LED OFF)
PFD01 error?
PDS01 voltage
is missing?
Replace PICF1.
Replace fuse.
Check PRF10.
No
No
Yes
PICF1 Drain (pin 1)
voltage is missing?
Check 2d voltage.
No
Voltage exists in
PICF1-4?
Check PRF11 ~ PRF14.
Yes
No
Pulse is missing
in PICF1-5?
Replace PICF1.
Check feed back.
Yes
Yes
No
Yes
CVBS output error
27MHz clock
input is normal at
pin 159 in ZIC1?
Analog output
is normal at pin 133
in ZIC1?
Check the connection between
pin 6 in ZIC4 and pin 129 in ZIC1.
Check the soldering of ZIC1.
Yes
Yes
No
No
Analog signals are
inputted normally
pin 2 in VIC1?
Yes
No
Power is
normal at pin 1, 28
in VIC1?
Yes
No
Pin 7 in VIC1
is in high stste?
Yes
Check the connection netween
pin 133 in ZIC1 and VIC1.
Check the connection betwen
VIC1 and PICS4-2.
Check the connection between
PICS4-2 and pin 1 in VIC1.
Check the soldering of VIC1.
No
No
Check the connection between
VIC1 and output jack.
Pin of VDD_2.5 &
VDD-3.3 in Zic1 has
normal level?
Check the connection between
pin 1 in PCNS1 and pin 3 in ZIC5.
Yes
No
Peak to peak
voltage level of pin 27
in VIC1 is 2V?
Video signal of
about 1V appears at
output jack?
Yes
No
Yes
Check the RCA cable.
D