Technics SH-8075 Service Manual

|
\*
i The Bleek. type model is ‘indicated by (K)
in the Service Manual.
The colors of this model | 1S black type only.
"Naseperoctumsateleotinmnctoaity cman a peta in ss He aces
Specifications
(DIN 45 500)
Frequency response
(center position)
Maximum output
voltage
Rated output voltage
Rated total harmonic
distortion
Input sensitivity
Signal-to-noise ratio
Maximum input
voltage
input impedance
Output impedance
Gain
Channel balance
250 Hz~6300 Hz
Channel separation
1 kHz
Band level controis
>5 HZ~100 kHz, —1 dB
>8V (1 kHz, THD 0.01%)
(LOW LEVEL 150 mV)
ames
> 0.001% (20 Hz~20 kHz)
a
110 dB (120 dB, IHF ‘A)/2 V
104 dB (114 dB, IHF ’A)/1 V
8 V (1 kHz)
(LOW LEVEL 150 mv)
> 47 kQ
> 600Q
>O0+1dB
=+0:506
:70dB
+12dB~-12dB
Stereo Graphic Equalizer
Specifications are subject to change without notice for further improvement.
Weights and dimensions shown are approximate.
Center frequency
ORDER NO. SD83072619C2
Areas
|, [EH], [EB],
* EK] is cAvailieal in United Kingdo
* [EF] is available in France.
*{EH] is available in Holland.
* (EB) is available in Belgium.
x [EGA] iS available in F, R. Germ
an
a
TOA 202. 25 AZ OV oases
40 Hz, 50 Hz, 63-H2,:80: Hz,
100:HZ,.125 Hz, 160 Hz, 200 Hz,
250 Hz.375-Hz, 400 Hz,.500 Hz,
630 Hz, 800 Hz, 1 KHz, 1.25 kHz,
16 KHz, 2 kHz; 2.5 KHZ, 3.15 kHz,
4 kHz, 5 KHz, 6.3 KHz, 8 KHz,
10 kHz, 12.5 KHz, 16 KHz, 20 kHz,
25 KHz
Variable equalizer
Center-frequency
controls (variable) > 20 Hz~ 400 Hz
Bandwidth controls(Q) :0.7~7
Band level controls
hie dB] 1208
GENERAL
Power supply > AC 110 V/120 V/220 V/240 V,
50 Hz/60 Hz
Power consumption > 34 W
Dimensions
(33 elements continuously variable
per channel)
Signal level selector 7150 mV/1 V
& CONTENTS
Page
SAFETY:PRECAUTION 2p pei ee ERE Baws Seem 2
TOTAL FREQUENCY RESPONSE ii Bi ity Seah Gas Hes hae Cie SO aera ean
LOCATION OF CONTROLS . Sk WR ote lelctan Woe a Ae Ge
DISASSEMBLY INSTRUCTIONS . ; fay 8k ena a Oe
MODEL NO. SH-8065 BE DIFFERENT MODEL
NO. SH-8075 : : ews: &. pay “6
PRINTED CIRCUIT BOARDS WIRING.
CONNECTION DIAGRAM i a iat Bye
‘Technics
(HxWxD) > 153x430 x 330 mm
(6-1/32" « 16-15/16" x 13")
Weight : 6.6 kg (14.5 Ib)
Page
PRINTED CIRCUIT BOARDS .................. 9°16
TECHNICAL INFORMATION . ee ee ee eee |
EXPLODED VIEW....... le 18,19
REPLACEMENT PARTS LIST . Bi eae ole ee ea ee
SCHEMATIC DIAGRAM .............. 000-5. 21~30
BLOCK DIAGRAM ..... Say & bre & i oe SG eee
RESISTORS AND CAPACTIORS Pg yk he BB eA Hata ie, Op OA
Matsushita Electric Trading Co., Ltd.
P.O. Box 288, Central Osaka Japan

Technics SH-8075 Specifications

General

Brand	Technics
Model	SH-8075
Category	Stereo Equalizer
Language	English

Summary

Specifications

SAFETY PRECAUTION

INSULATION RESISTANCE TEST

Procedure for testing equipment insulation resistance to prevent shock hazards.

TOTAL FREQUENCY RESPONSE

LOCATION OF CONTROLS

OTHER SWITCHES

Details on equalizer on/off, record mode, and input selector switches.

VARIABLE EQUALIZER

Explanation of center frequency and bandwidth controls for equalization.

DISASSEMBLY INSTRUCTIONS

HOW TO REMOVE THE BOTTOM BOARD

Step-by-step guide to detach the bottom panel of the unit.

HOW TO REMOVE THE FRONT PANEL

Step-by-step guide to detach the front panel of the unit.

PRINTED CIRCUIT BOARDS WIRING CONNECTION DIAGRAM

PRINTED CIRCUIT BOARDS

G P.C.B. (INDICATORS)

Wiring diagram for the indicator printed circuit board.

B P.C.B. (INPUT/OUTPUT CONTROLS)

Wiring diagram for the input/output controls printed circuit board.

TECHNICAL INFORMATION

VARIABLE EQUALIZER CIRCUIT

Explains the variable equalizer circuit for center frequency and bandwidth control.

BAND LEVEL CONTROL CIRCUIT

Explains the band level control circuit for peak and dip characteristics.

EXPLODED VIEW

REPLACEMENT PARTS LIST

TERMINAL GUIDE OF TRANSISTORS, IC'S AND DIODES

Provides pinout information for transistors, ICs, and diodes.

BLOCK DIAGRAM

CHANGES

SCHEMATIC DIAGRAM

Presents schematic diagrams for input and output circuits, showing changes.

HOW TO READ THE SERIAL NUMBER