Read Sony CDP-XE330 Service Manual online
IC401
CN402
TP3 (JW41: ADJ)
TP2 (JW40: AF ADJ)
– 9 –
6.
Check the level B of the oscilliscope's waveform and the A
(DC voltage) of the center of the Traverse waveform.
Confirm the following :
A/B x 100 = less than ± 7%
(DC voltage) of the center of the Traverse waveform.
Confirm the following :
A/B x 100 = less than ± 7%
Traverse waveform
7.
Press the “8” button. (The tracking servo is turned ON.)
Confirm the C (DC voltage) is almost equal to the A (DC
voltage) is step 6.
Confirm the C (DC voltage) is almost equal to the A (DC
voltage) is step 6.
Traverse waveform
8.
Disconnect the lead wire of TP3 (ADJ) connected in step 1.
Adjustment Location :
[ BD BOARD ] — Side A —
[ MAIN BOARD ] — Component Side —
0V
level : 500
±
100 mVp-p
A (DC voltage)
Center of the waveform
B
0V
C (DC
voltage)
voltage)
Tracking servo
OFF
OFF
Tracking servo
ON
ON
(VC)
(RF)
(FOK)
(TEO) (FEO)
IC101
– 10 –
SECTION 6
DIAGRAMS
6-1. CIRCUIT BOARDS LOCATION
MAIN board
DISPLAY board
KEY board
LOADING board
POWER SW board
BD board
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
¢
: internal component.
•
C
: panel designation.
•
U
: B+ Line.
•
V
: B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : STOP
(
no mark : STOP
(
) : PLAY
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
J
: CD
c
: digital out
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
•
®
: Through hole.
• b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side:
Parts on the parts face side seen from the
(Side A)
parts face are indicated.
• Indication of transistor
C
These are omitted
E
B
Q
C
These are omitted
E
B
Note: The components identified by mark
!
or dotted line
with mark
!
are critical for safety.
Replace only with part number specified.
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