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VL-PDl U
11 m USEFULTIPS
(PROBLEMS DIFFER FROM THOSE FOUND ON VHS OR 8MM
DECKS BECAUSE THE SIGNALS ARE DIGITALLY PROCESSED.)
Problems
>amera (EE mode)
Major circuits to be checked
l
CCD
l
Camera circuits (CDS, ADC, DSP)
.
PPW (IC4401)
l
LCD_DSP
(ICSOO)
l
System controller
(IC701)
.
VI0 (IC1401)
JCR
(EE mode)
\
/
Blueback fails
to appear.
l
Mechanical
controller
(IC7701)
l
LCD_DSP
(ICSOO)
l
System controller
(IC701)
0 Zoom (IC251)
l
CLOCK GENERATOR
(IC471)
J
c
Camera (REC mode)
l
Zoom (IC251)
VCR (PB mode)
l
CLOCK GENERATOR
(IC471)
\
0
Picture fails to
appear when tape
recorded on this
unit or another unit
is played back.
(EE OK)
\
Camera (REC mode)
.
PLL (lC3401)
VCR (PB mode)
l
ATF (lC3402)
l
Head amplifier
(IC301)
*
2
/
Dirty or defective video head
Blueback when
tape recorded on
this unit or another
unit is played back.
(EE OK)
/ .
\
11-l
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