Technics SUV 4 A Schematics
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Page 1
AQHB
ORDER NO. SD8007»1770
Service Manual
Stereo Integrated DC Amplifier
SU- V4A
[X]GH
8:U- :V4A(:I<)
,[,X]GH EB)]
A reas
*The cabinet, front panel and knob are available in
black color and silver types.
The black type model is provided with (K) in the
Service Manual.
CONTENTS
Page
LOCATION OF CONTROLS .................... 3,4
DISASSEMBLY INSTRUCTIONS ................. 4,5
ADJUSTING INSTRUCTIONS IENGLISHI ............ 5, 6
EINSTELLUNGSANWEISUNGEN (DEUTSCHI. .
INSTRUCTIONS DE REGLAGE IFRANCAISI ......... 7,8
REPLACEMENT PARTS LIST (Electrical Parts) ........... 8
BLOCK DIAGRAM OF IC'S
' IE] and [E6] are available in Scandinavia and European
except Belgium and Holland.
[XGHI is available in Holland.
" [E8] is available in Belgium.
Page
VARIABLE RESISTORS ....................... 11
PRINTED CIRCUIT BOARDWIRING VIEW. . . .I2~15
TERMINAL GUIDE OF TRANSISTORS AND IC'S . ...... 15
SCHEMATIC DIAGRAM .................... 16~20
EXPLODEDVIEWS ........................ 21,22
REPLACEMENT PARTS LIST
(Cabinet, Chassis and Packing Parts) ................ 23
BLOCK DIAGRAM ......
REPLACEMENT PARTS LIST (Resistors and Capacitors) , .23, 24
TECHNICAL SPECIFICATIONS Specifications are winner to change Without notice for further improvement.
(DIN 45 500)
~26 dB power at 1 kHz 0.12% (40)
AMPL'F'ER SECTION 50 mW power at 1 kHz 02% (m)
20 qu20 kHz continuous power output lntermodulation distortion
both channels driven 2 x 60W (40) rated power at 250 Hz: 8 kHz:4:1, 40 003%
2 x 55W (80) rated power at 60 Hz: 7 kHz=4.1, SMPTE, 80 0.02%
40 Hz~16 kHz continuous power output Power bandwidth .
both channels driven 2 x 60W (40) both channels driven, *3 dB
2 A 55W (80) (THD 0.03%) 5 HZNSO kHz (40)
1 kHz continuous power output (THD 0.02%) 5 Hz~30 kHz (80)
both channels driven 2 > 75W (40) Residual hum and noise (straight DC) 0.65 mV
2 '- 60W (80) Damping factor 25 (40), 50 (80)
Total harmonic distortion Input sensitivity and impedance
rated power at 20 Hz~20 kHz 0,03% (40) PHONO MM 2.5 mV/47k0
0,02% (80) MC 170 yV/47Q
rated power at 40 Hz~16 kHz 0,03% (40) TUNER. AUX 150 mV/27k0
0.02% (80) TAPE 1 REC/PLAY 180 mV/33k0
rated power at 1 kHz 0 02% (4Q) TAPE 2 150 rnV/27kf2
0.02% (80) PHONO maximum input voltage (1 kHz, HMS)
halt power at 20 Hz~2o kHz 0.015% (80) MM 150 mV
hall power at1 kHz 0.005% (80) MC 10 mV
Matsushita Electric Trading Co., Ltd.
PO, Box 288. Central Osaka Japan
As)
Technics