Pioneer SA 930 Service Manual

Page 1

(U) DIONEER

Sefiice
Wanna]

CIRCUIT DESCRIPTIONS

REPAIR & ADJUSTMENTS

STEREO AMPLIFIER

A-QEO

MODEL SA-930 COMES IN SEVEN VERSIONS DISTINGUISHED AS FOLLOWS:

ORDER NO.
ARP-100-0

Type Voltage Remarks
KU AC 120V only U.S.A. model

5 AC 110V, 120V, 220V and 240V (Switchable) General export model

S/G AC 110V, 120V, 220V and 240V (Switchable) U.S. Military model

VF AC 240V only Australia model

HE AC 220V and 240V (Switchable) Europe model

HB AC 220V and 240V (Switchable) United Kingdom model

HEZ AC 220V and 240V (Switchable) West Germany model

O This service manual is applicable to the KU type. When repairing the S, S/G, YP, HE, HB and HEZ types,

please see (page 24~31).
0 Ce manuel d'instruction se refére au mode de réglage, en fancais.
o Este manual de servicio trata del método de ajuste escrito en espafiol.

CONTENTS

1. SPECIFICATIONS ..................... 2 9. SCHEMATIC DIAGRAM ...............
2. FRONT PANEL FACILITIES ............. 3 10. PARTS LIST ........................
3. DISASSEMBLY PROCEDURES ............ 4 11. ADJUSTMENTS .....................
4. PARTS LOCATION .................... 4 REGLAGE .........................
5. EXPLODED VIEW ..................... 6 AJUSTE ...........................
6. BLOCK DIAGRAM .................... 9 12. PACKING ..........................
7. CIRCUIT DESCRIPTIONS ............... 11 13. FOR S, S/G, YP, HE, HB AND HEZ TYPES . . ..
8. P.C. BOARDS CONNECTION DIAGRAM ..... 14

21

.22

23
24
24

PIONEER ELECTRONIC CORPORATION 4-1. Meguro «Gnome. MeguPD-Ku. Tokyo 153, Japan
PIONEER ELECTRONICS [USA] me. 1925 E. Dominguez 5e, Long Beach. California 90510 U.S.A.

PIONEER ELEc'rRuNIc [EUROPE] N.v. LuichagEn-Haven 9, 2030 Amcwerp. Belgium

PIONEER ELECTRONICS AUSTRALIA PTv. LTD. 178-184 Boundary Road, Eraeslde. vlccoma 3195. Australia

Page 2

1. SPECIFICATIONS

Amplifier Section

Continuous average power output is 70 watts
per channel, min., at 8 ohms from'ZO hertz to
20,000 hertz with no more than 0.04% total
harmonic distortion.

*

Total Harmonic Distortion (20Hz to 20,000Hz, 8 ohms,
from AUX/VIDEO)
35 watts per channel power output . No more than 0.02%
Intermodulation Distortion . (50Hz : 7,000Hz = 4 : l,
8 ohms, from AUX/VIDEO)
Continuous rated power output. , No more than 0.04%
35 watts per channel power output
....................... No more than 0.02%

Damping Factor (20Hz to 20,000HZ, 8 ohms) ..... 40
Input (Sensitivity/Impedance)
PHONO ................... 2.5mV/50 kiIohms
TUNER .................. 150mV/50 kiIohms
AUX/VIDEO ............... 150mV/50 kiIohms

TAPE PLAY 1,2/ADAPTOR . 150mV/50 kiIohms
Phono Overload Level (T.H.D. 0.01%, 1,000HZ)

PHONO .......................... lSOmV
Output (Level)

TAPE REC 1,2/ADAPTOR ............. 150mV

Speaker . : .................. A, B, A+B, OFF

Frequency Response
PHONO (RIAA Equalization)
................... 20Hz to 20,000Hz t0.5dB

TUNER, AUX/VIDEO, TAPE PLAY 1,2/ADAPTOR
..................... 10Hz to 100,000Hz tSdB
Tone Control

BASS ....................... ilOdB (100Hz)
TREBLE ................... t10dB (10,000Hz)
Subsonic Filter .................. 15Hz (~6dB/oct)

Loudness Contour
(Volume control set at -40dB position) ,. . +6dB(100H2)
Hum and Noise (IHF, short-circuited, A network)

PHONO ............................ 72dB
TUNER, AUX/VIDEO, TAPE PLAY 1,2/ADAPTOR
................................. 97 dB
Miscellaneous
Power Requirements .............. AC 120V, 60Hz
Power Consumption .................. 170W (UL)
Dimensions ........... 420(W) x 97(H) x 275(D) mm
16-9/16(W) x 3-13/16(H) x 10-13/16iD) in
Weight (without package) .......... 6.3kg (13 lb 14oz)
Furnished Parts
Operating Instructions ....................... 1
NOTE:

Specifications and the design subject to possible modifications
without notice due ta improvements.

" Measured pursuant to the Federal Trade Commission '3 Trade
Hegu/atiarr rule on Power Output Claims for Amplifiers.