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XL-V163TN/V164BK
XL-V263TN/V264BK
Slider turns REST
SWON.
Laser diode
emits light
Check
Points
Q601 E
| Son
VY
:
Is the voltage at pin24 of 1C601
:
Ov?
Focus error
ee
Ay
ae
TPS (FE)
LY
Check that the voltage at pin23
of J201(FRONT PCB) is +5V, and
its transmission
path to the
pickup.
Sense pin (FZC)
1C401 pin69
or J401 pinié
A
focus point
Focus OK
C201 pin60
or J401 pin7
Broken line shows out of focus.
Check that the voitage at pin4 of
1C401 is 5V, and its transmission
path to the pickup.
REAR SIDE
Tracking loop is
applied.
1€301
:
If the eye pattern is not output,
C)
Pye eens
check the RF amp (IC501). And if
output
ee
the eye pattern
is incorrect,
ae
ee
perform FE Bias adjustment.
TP2
oe
FE BIAS
1p3
oe
ADJ.
1P4
oo
TTY R512
T
oe
;
ee
ee
R603
TOC Reading
4601
7
oe
F GAIN
—
TP8@-@
AD.
OY
TGAIN
EF
ADS.( R604)
eres
1C601
Check that the voltage at pin4 of
1C401 is - 5V, and its
transmission path to the pickup.
1c501
(R513)
Disc is braked
Laser OFF
Check that the voltage at pin23
of J201(FRONT PCB) is OV, and its
transmission path to the pickup.
FRONT SIDE
(No.20329) 1-27
Sc en Ad
T
S e Le eC
IE TT
ROE AR
PRM Orm
NTT
ePIC e
ren ETS
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