Sven SPS-820 User manual

SERVICE MANUAL SAMPLE
SPS-820

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2. SPECIFICATIONS
TECHNICALSPECIFICATION:
OUTPUT POWER SUB-WOOFER 35 RMS THD 0.7%)
FRONT 15W+15W RMS THD 0.7%)
CENTER 15W RMS THD 0.7%)
SURROUND 15W+15W RMS THD 0.7%)
SUB WOOFER IMPEDANCE 8 OHM
FRONT/CENTER/SURROUND 4 OHM
FREQUENCE RESPONSE 50Hz-20KHz
SEPARATION 40dB
S/N RATIO 80dB
DIMENSION
SUB WOOFER W170*D355*H260mm
FRONT/CENTER/SURROUND W97*D135*H155mm
SERVICE MANUAL

4. CONNECTINGTO EQUIPMENT
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SERVICE MANUAL
L. R.
L.
R.
~220V 50Hz

TROUBLE SHOOTING AND RESOLUTION
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5. TROUBLESHOOTING GUIDE
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SERVICE MANUAL
No sound
check whether the vice-level I
alternating voltage13v*2 of
thransformer is ok or not.
replace the
transformer
check whether thecurrent
transfer output voltsD.Cisok
or not.
check whether the
capacitor C3C8
are ok or not.
NOT
NOT
OK
1
judge whether JRC4558,
TOA7275,TDA2030A,are
ok or not
NOT
OK
replace it
Check the speakers
ok or not
NOT
OK
Replace it
Error Possible reason Obivating
No sound
The power plug is not exactly inserted.
The connection of output and input is not well
The input format is not right
The volume control be settled in the minimum
Rest estate
Insert the plug in right place
Connect the output and input
cables
Adjust the volume
2dried machine
check whether thepower switch isall right ornot. replace the it
check whether thereis 220V alternating
current of thetransformer in elementary.
check the plug,power
buttonare all rightor not.
BURNED OUT
OK
NOT

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SERVICE MANUAL