Read Sony CDX-GT320 / CDX-GT32W / CDX-GT370 / CDX-GT370S (serv.man2) Service Manual online
1
US Model
CDX-GT32W/GT320
Canadian Model
CDX-GT32W
E Model
CDX-GT370/GT370S
SERVICE MANUAL
Ver. 1.1 2007. 10
SUPPLEMENT-1
File this supplement with the service manual.
Subject : Production country change of CDX-GT370S.
Saudi Arabia model addition of CDX-GT370.
The CDX-GT370S (E) model has been changed in the production country to Thailand from Chinese.
This service manual, SUPPLEMENT-1 only contains the change.
When servicing and inspecting, check the Model Number Label to see if the model is made in Thailand or Chinese.
This service manual, SUPPLEMENT-1 only contains the change.
When servicing and inspecting, check the Model Number Label to see if the model is made in Thailand or Chinese.
DISCRIMINATION
9-887-798-81
SONY
R
MODEL
No.
CDX-GT370S
3-282-031-0 : CDX-GT370S E Model
3-218-759-0 : CDX-GT370 Saudi Arabia Model
MADE IN THAILAND
CDX-GT370
–Model Number Label–
CDX-GT32W/GT320/
GT370/GT370S
2
CDX-GT32W/GT320/GT370/GT370S
TABLE OF CONTENTS
1. DIAGRAMS
1-1. Printed Wiring Board –Main Section– ................................ 5
1-2. Schematic Diagram –Main Section (1/4)– .......................... 6
1-3. Schematic Diagram –Main Section (2/4)– .......................... 7
1-4. Schematic Diagram –Main Section (3/4)– .......................... 8
1-5. Schematic Diagram –Main Section (4/4)– .......................... 9
1-6. Printed Wiring Board –Key Section– ................................ 10
1-7. Schematic Diagram –Key Section– ................................... 11
1-2. Schematic Diagram –Main Section (1/4)– .......................... 6
1-3. Schematic Diagram –Main Section (2/4)– .......................... 7
1-4. Schematic Diagram –Main Section (3/4)– .......................... 8
1-5. Schematic Diagram –Main Section (4/4)– .......................... 9
1-6. Printed Wiring Board –Key Section– ................................ 10
1-7. Schematic Diagram –Key Section– ................................... 11
2. EXPLODED VIEWS
2-1. Main Section ..................................................................... 13
2-2. Front Panel Section ........................................................... 14
2-3. CD Mechanism Section (MG-101TC-188//Q) .................. 15
2-2. Front Panel Section ........................................................... 14
2-3. CD Mechanism Section (MG-101TC-188//Q) .................. 15
3. ELECTRICAL PARTS LIST
........................................ 16
3
CDX-GT32W/GT320/GT370/GT370S
• NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
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. (p: pF)
• All capacitors are in µF unless otherwise noted. (p: pF)
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.
•
f
: internal component.
•
C
: panel designation.
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
a
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
) : AM/MW/SW
<
> : CD PLAY
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
: CD PLAY
F
: FM
f
: AM/MW/SW
L
: BUS
g
: AUX
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)
(Side A)
parts face are indicated.
Q
C
These are omitted
E
B
E
These are omitted
C
B
C
These are omitted
B
E
SECTION 1
DIAGRAMS
•
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40°C higher than
• Unleaded solder melts at a temperature about 40°C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350°C.
Caution: The printed pattern (copper foil) may peel away if the
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350°C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
also be added to ordinary solder.
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
4
CDX-GT32W/GT320/GT370/GT370S
• Waveforms
— MAIN Board —
0.7Vp-p
32.768kHz
1
IC501
ul
(XOUT)
1.8Vp-p
18.432MHz
2
IC501
id
(OSCOUT)
0.5 V/DIV, 20
µ
sec/DIV
0.5 V/DIV, 20 nsec/DIV
