HT-1700D, HT-5500D, HT-DDW740, HT-DDW840, HT-SL5A, SA-WMSP2, SA-WMSP4 - Sony Audio Service Manual (repair manual)

Model
HT-1700D HT-5500D HT-DDW740 HT-DDW840 HT-SL5A SA-WMSP2 SA-WMSP4
Pages
11
Size
1.96 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
ht-1700d-ht-5500d-ht-ddw740-ht-ddw840-ht-sl5a-sa-w.pdf
Date

View Sony HT-1700D / HT-5500D / HT-DDW740 / HT-DDW840 / HT-SL5A / SA-WMSP2 / SA-WMSP4 Service Manual online

SA-WMSP2/WMSP4
US Model
Canadian Model
AEP Model
UK Model
E Model
SERVICE MANUAL
ACTIVE SUBWOOFER
Ver 1.0  2002. 02
SPECIFICATION
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
With 6 ohm loads, from 28 – 200 Hz; rated 100
watts (SA-WMSP4) / 50 watts (SA-WMSP2),
minimum RMS power, with no more than 0.8%
total harmonic distortion from 250 milliwatts to
rated output (Models of area code U only).
Speaker system
Active subwoofer,
magnetically shielded
Speaker unit
Woofer: 20 cm cone type
Enclosure type
Acoustically loaded bass
reflex
Continuous RMS power output
(6 ohms, 20 – 250 Hz)
SA-WMSP4
100 W
SA-WMSP2
50 W
Reproduction frequency range
28Hz – 200 Hz
High frequency cut-off frequency
150 Hz
Input
LINE IN (input pin jacks)
Power requirements
Area code
Power requirements
U, CA, MX
120 V AC, 60 Hz
CEL, CEK, SP, MY 230 V AC, 50/60 Hz
AR
220 – 230 V AC, 50/60 Hz
E2/E3
120/220/230 V AC, 50/60 Hz
Power consumption
SA-WMSP4
100 W
SA-WMSP2
50 W
Dimensions (w/h/d)
Approx. 272   326   405
mm  (10 3/4  12 7/8   16
inches) including front
panel
Mass
SA-WMSP4
10.0 kg (22 lb 1 oz)
SA-WMSP2
9.0 kg (19 lb 14 oz)
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-873-478-01
2002B1600-1
© 2002.02
• SA-WMSP2 is the sub woofer section in
HT-DDW740.
• SA-WMSP4 is the sub woofer section in
HT-DDW840.
photo: SA-WMSP4 silver model
• Abbreviation
AR
: Argentin model
CA
: Canadian model
CEK : UK model
CEL
: AEP model
MX
: Mexican model
MY
: Malaysia model
SP
: Singapore model
U
: US model
2
SA-WMSP2/WMSP4
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.
SAFETY  CHECK-OUT
    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)
0.15
µ
F
To Exposed Metal
Parts on Set
1.5k
AC
voltmeter
(0.75V)
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
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.
3
SA-WMSP2/WMSP4
SECTION 1
DIAGRAMS
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• b : Pattern from the side which enables seeing.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted.  p: pF. 50
WV or less are not indicated except for electrolytics and
tantalums.
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• All resistors are in 
 and 
1
/
4
 
W or less unless otherwise
specified.
• C : panel designation.
• A : B+ Line.
• B : B– Line.
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : Power on
• Voltages are taken with a VOM (Input impedance 10M
).
Voltage variations may be noted due to normal preduction
tolerances.
• Signal path.
F
: AUDIO
• Abbreviation
AR
: Argentin model.
CND : Canadian model.
MX
: Mexican model.
MY
: Malaysia model.
SP
: Singapore model.
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
4
SA-WMSP2/WMSP4
• CIRCUIT BOARD LOCATION
LED board
SWITCH board
INPUT JACK board
MAIN board
CONTROL board
POWER TRANS board

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Here you can view online and download Sony HT-1700D / HT-5500D / HT-DDW740 / HT-DDW840 / HT-SL5A / SA-WMSP2 / SA-WMSP4 Service Manual in PDF. HT-1700D / HT-5500D / HT-DDW740 / HT-DDW840 / HT-SL5A / SA-WMSP2 / SA-WMSP4 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony HT-1700D / HT-5500D / HT-DDW740 / HT-DDW840 / HT-SL5A / SA-WMSP2 / SA-WMSP4 Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.