CMT-EX200, SA-WEX200 — Sony Audio Service Manual (repair manual)

Model
CMT-EX200 SA-WEX200
Pages
10
Size
633.49 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-ex200-sa-wex200.pdf
Date

View Sony CMT-EX200 / SA-WEX200 Service Manual online

1
SA-WEX200
ACTIVE SUBWOOFER
US Model
Canadian Model
SPECIFICATION
Ver 1.0  2001.09
SA-WEX200 is sub woofer in CMT-EX200.
9-873-267-01
2001I0200-1
© 2001.9
Sony Corporation
Home Audio Company
Shinagawa Tec Service Manual Production Group
Amplifier section
For the U.S.model
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 4 ohms loads,from 50 – 150 Hz;rated 30 watts
per channel minimum RMS power,with no more than
10%total harmonic distortion from 250 milli watts to
rated output.
Canadian model:
Continuous RMS power output (reference):
30 watts
(4 ohms at 55 Hz,10%
THD)
Speaker system
Active sub woofer
(magnetically shielded
design)
Speaker unit
10 cm dia,cone type
woofer (x2)
Practical maximum output 30 watts
Reproduction frequency range
45 – 150 Hz
High frequency cut-off range
70 – 150 Hz
Phase selector
Normal,reverse
Input
SPEAKER INPUT:
Input terminal
Output
SPEAKER OUTPUT:
Output terminal
Power requirements
120 V AC,60 Hz
Power consumption
40 watts
Dimensions
Approx.150 x 220 x
345 mm (w/h/d,incl.
projecting parts and
controls)
M a s s
Approx.6.2 kg
Design and specifications are subject to change
without notice.
SERVICE MANUAL
2
SA-WEX200
TABLE OF CONTENTS
1. GENERAL
.......................................................................... 3
2. DIAGRAMS
2-1. Circuit Boards Location ........................................................ 3
2-2. Printed Wiring Board ............................................................ 4
2-3. Schematic Diagram ............................................................... 5
3. EXPLODED VIEW
3-1. Front Section ......................................................................... 6
4. ELECTRICAL  PARTS LIST
......................................... 6
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH
MARK 
0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
    After correcting the original service problem, perform the
following safety checks before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage. Check leakage as
described below.
LEAKAGE
    The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1.
A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
2.
A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3.
Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indication
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples of
a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2V AC range are suitable. (See
Fig. A)
SAFETY  CHECK-OUT
(US model)
Fig. A. Using an AC voltmeter to check AC leakage.
0.15
µF
To Exposed Metal
Parts on Set
1.5k
AC
voltmeter
(0.75V)
Earth Ground
3
SECTION 1
GENERAL
This section is extracted from
instruction manual.
Sub Woofer
CUT OFF FREQ 3 (15)
LEVEL 1 (15)
PHASE 4 (15)
Power indicator 2
• Location of controls
3
SA-WEX200
SECTION 2
DIAGRAMS
For schematic diagrams.
Note:
• All capacitors are in 
µF unless otherwise noted.  pF: µµF
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.
C : panel designation.
For printed wiring boards.
Note:
X : parts extracted from the component side.
b : Pattern from the side which enables seeing.
: B+ Line.
: B– Line.
• Voltages are dc with respect to ground under no-signal con-
ditions.
no mark : Power on
• Voltages are taken with a VOM (Input impedance 10M
Ω).
Voltage variations may be noted due to normal preduction
tolerances.
• Signal path.
K : AUDIO
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
2-1. Circuit Boards Location
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
piéce por tant le numéro
spécifié.
INPUT board
MAIN board
AC board
POWER AMP board
FRONT board
4
4
SA-WEX200
2-2. PRINTED WIRING BOARD
• See page 3 for Circuit Boards Location.
1
8
CN201
1
8
IC201
1
8
IC202
R204
R214
R117
R115
R203
R116
R114
R206
R207
R208
R205
C209
C208
C211
C210
C205
C207
C213
C203
C212
C204
C103
C104
D201
ON/STBY
RV202
LEVEL
RV201
CUT OFF FREQ
FRONT BOARD  
11
(11)
S201
PHASE
1
11
10
2
L
SPEAKER
INPUT
R
TM101
+
+
L
SPEAKER
OUTPUT
R
+
+
1
8
1
2
1
2
1
2
3
1
2
R401
R402
C452
C451
C404
C406
C405
C403
C401
C402
1
8
CN201M
1
7
CN302W
1
3
CN501
1
10
CN301W
1
CN203M
1
CN502
T2
F402
+
F401
D401
D404
D403
D451
D455
D454
D453
D452
R451
MAIN BOARD  
11
(11)
R303
R304
R309
R307
R310
R311
Q303
Q304
Q302
Q301
R313
R312
R301
R308
R302
B C E
E C B
E C B
E C B
C309
C305
C311
C306
C312
C310
C303
C302
C308
C307
C320
R306
C314
D302
D304
D303
1
7
CN302
1
CN303
RY301
D301
IC851
POWR AMP BOARD  
11
(11)
SP901
SP902 (PASSIVE WOOFER)
INPUT BOARD  
11
(11)
R503
R513
R501
R507
R120
R121
R502
R504
R511
R506
R103
R510
R512
R515
R514
R508
R509
R505
R105
R102
R101
R106
R112
R123
R122
R118
R111
IC101
R107
C505
C504
C704
C703
CN301
10
1
C506
C501
C503
C507
C502
C701
C711
D102
D503
D504
D103
D101
D104
D501
D502
D505
B
C
E
E C B
E C B
E C B
B C E
B C E
B C E
E
C
B
Q501
Q507
Q508
Q506
Q503
Q504
Q502
Q505
RY461
C2
C3
D461
1
CN203
CN503
CN501M
CN502M
S1
POWER
AC BOARD  
11
(11)
CP901
AC IN
T1
POWER
TRANSFORMER
2
3
4
5
6
7
8
9
10
11
12
13
A
1
B
C
D
E
F
G
H
J
I
1-683-832-
1-683-834-
1-683-831-
1-683-833-
1-683-835-
D101
B-10
D102
B-10
D103
B-10
D104
A-10
D201
H-2
D301
I-5
D302
I-5
D303
I-4
D304
H-4
D401
B-4
D403
B-1
D404
C-1
D451
A-6
D452
A-6
D453
A-6
D454
A-6
D455
B-7
D461
F-9
D501
C-10
D502
E-10
D503
D-9
D504
C-10
IC101
A-10
IC201
G-2
IC202
H-2
IC851
H-5
Q301
G-4
Q302
G-4
Q303
H-4
Q304
G-4
Q501
C-10
Q502
E-10
Q503
D-9
Q504
D-10
Q505
E-9
Q506
D-10
Q507
D-10
Q508
C-10
• Semiconductor
Location
Ref. No.
Location

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Here you can view online or download Sony CMT-EX200 / SA-WEX200 Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sony CMT-EX200 / SA-WEX200 Audio. Information contained in Sony CMT-EX200 / SA-WEX200 service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).