Sony CDX-T69, Руководство по обслуживанию

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SERVICE MANUAL
CDX-T67
CDX-T67
SUPPLEMENT-2
File this supplement with the service manual.
Subject: Change of MAIN/JACK boards. (Suffix-13)
(ECN-CSB03047)
US Model
Canadian Model
AEP Model
UK Model
E Model
Ver 1.3 2001.09
In this set, MAIN and JACK boards have been changed in the midway
of production.
Printed wiring boards and schematic diagrams of new type, and changed
parts list are described in this supplement-2.
Refer to original service manual for other information.
• NEW/FORMER TYPE DISCRIMINATION
– MAIN BOARD (Component Side) – – JACK BOARD (Conductor Side) –
Former Type : 1-680-828-12
New Type
: 1-680-828-13
Former Type : 1-680-827-12
New Type
: 1-680-827-13
• DIAGRAMS
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
•
X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
f
: internal component.
• : 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
(Conductor Side) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component Side) the parts face are indicated.
Note on Schematic Diagram:
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
C
: panel designation.
•
A
: B+ Line.
• H : adjustment for repair.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from CD changer controller.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J : CD PLAY
Note:
The components identi-
fied by mark
0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.