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For Japan model
Ver. 1
SERVICE MANUAL
MODEL DSW-3.1
SUPER WOOFER
●For purposes of improvement, specifications and design are subject to change without notice.
●Please use this service manual with referring to the operating instructions without fail.
●Some illustrations using in this service manual are slightly different from the actual set.
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16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPAN
S-1132V.01 DE/CDM 0307
DSW-3.1 2
SAFETY PRECAUTIONS
The following check should be performed for the continued protection of the customer and service technician.
LEAKAGE CURRENT CHECK
Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the unit is defective.
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500 |
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1 Ω |
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(1) |
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(2)
さい。特に配線図、部品表に
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(1) … |
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(2) … |
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2
DSW-3.1 3
1.
(1)6
(2)10
2.
(1)12
(2)3
3
DSW-3.1 4
3.
(1)4
(2)4
4.
(1)4
(3) をはずします。
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LOW CUT HIGH CUT
P.AMP
INPUT
INPUT CENTER
INPUT L
INPUT R
5
+0.1dBv
-1.8dBv
C0.5V(-5.9dBv)
-4.3dBv
SL/SR |
0.4V(-7.8dBv) |
-6.3dBv |
-9.8dBv |
SWF |
0.3V(-10.3dBv) |
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LEVEL |
SW 4Ω 60W |
DIAGRAM |
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CENTER 8Ω 30W |
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SL |
8Ω 30W |
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SR |
8Ω 30W |
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+23.(SP8dB OUT) 15.5Vrms Ω60w/8Ω30
1.3-DSW
5
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IC601 |
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IC501 |
IC503 |
IC504 |
POWER |
SWF SP |
SWF |
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AMP |
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HPF |
LPF |
ALC |
IC602 POWER AMP |
CENTER |
CENTER |
OUT |
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Standby |
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Trans |
IC502 |
IC505 |
SL |
SL OUT |
6
SR |
SR OUT |
+12V |
-12V |
For IC501,IC502, |
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IC401 |
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IC401 |
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AC Relay |
Main Trans
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Multi- |
Protection |
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vibrator |
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Auto on/off |
Relay |
+27V
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+15V |
Thermal |
DC |
Over Current |
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Protector |
Protector |
Protector |
-15V |
-27V
DIAGRAM BLOCK
6 1.3-DSW
DSW-3.1 7
SEMICONDUCTORS
Only major IC's are shown,generai IC's etc. are omitted to list.
IC's
STK402-250 (IC602)
BL-BEG204 (LD401)
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PRINTED WIRING BOARD (1/2) |
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DSW-3.1 |
8 |
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Parts List
COMPONENT SIDE
INPUT P.W.B. UNIT |
MAIN TRANS P.W.B. UNIT |
A
B
C
MAIN P.W.B. UNIT
SUB TRANS P.W.B. UNIT
D
E
8
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