Sony HT-K170 / HT-K215 / SA-VE215 / SA-WMS215 / SS-MS215 Service Manual ▷ View online
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SERVICE MANUAL
SPEAKER SYSTEM
SPECIFICATIONS
• The SA-VE215 system consists of one unit
of SA-WMS215 and five units of SS-MS215.
• This set is the Speaker section in HT-K170/
K215.
SA-VE215/WMS215/
SS-MS215
Photo: SA-WMS215
Photo: SS-MS215
SS-MS215 Front, center and rear speakers
Speaker system
Full range, magnetically
shielded
shielded
Speaker units
5 cm cone type
Enclosure type
Bass reflex
Rated impedance
8 ohms
Power handling
60 watts
capacity
(Maximum input
power)
(Maximum input
power)
Sensitivity level
84 dB (1W, 1m)
Frequency range
150 Hz - 20,000 Hz
Dimensions (w/h/d)
Approx. 76
×
100
×
86 mm
including front grille
Mass
Approx. 425 g
SA-WMS215 Subwoofer
System
Active subwoofer,
Speaker system
magnetically shielded
Speaker unit
Woofer : 16 cm cone type
Enclosure type
Acoustically Loaded Bass Reflex
Continuous RMS
50 W
power output
(8 ohms, 20 - 250 Hz)
(8 ohms, 20 - 250 Hz)
Reproduction
32 Hz - 250 Hz
frequency range
High frequency
250 Hz
cut-off frequency
Input
LINE IN (input pin jack)
General
Power requirements
220 - 230 V AC, 50/60 Hz
Power consumptions
45 W
Dimensions (w/h/d)
Approx. 240
×
285
×
355 mm
including front panel
Mass
Approx. 8 kg
Design and specifications are subject to change without
notice
notice
Ver 1.1 2003. 05
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-929-500-12
2003E16-1
© 2003.05
2
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.
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of soldering iron around 270˚C
during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
3
3
SECTION 1
DIAGRAMS
1-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
• X
: parts extracted from the component side.
• b
: Pattern from the side which enables seeing.
•
Indication of transistor.
B
These are omitted.
C
E
Q
Note on Schematic Diagram:
• 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.
•
2
: nonflammable resistor.
•
C
: panel designation.
•
U
: B+ Line.
•
V
: B– Line.
• Voltages are dc with respect to ground under no-signal
conditions.
• Voltages are taken with a VOM (input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
F
: AUDIO
• Circuit Boards Location
SA-WMS215
SA-WMS215
• IC Block Diagram
IC302
uPC1237HA
1
2
3
4
5
6
7
8
OVER LOAD DET
F/F
OFFSET DET
LATCH/
AUTORESET
V
CC
ON
MUTE
AC OFF
DET
V
CC
CONTROL board
LED board
POWER SWITCH board
POWER IC board
MAIN board
POWER SUPPLY board
Note :
The components identified by
mark
The components identified by
mark
0
or dotted line with mark
0
are critical for safety.
Replace only with part number
specified.
specified.
SA-VE215/WMS215/SS-MS215
4
4
1-2. SCHEMATIC DIAGRAM (SA-WMS215)
• See page 3 for IC block diagram.
The components identified by
mark
mark
0
or dotted line with mark
0
are critical for safety.
Replace only with part number
specified.
specified.