Technics SAG 56 Service Manual

Page 1

ORDER NO. M09607044A1

Service Manual

AV Control Stereo Receiver

Receiver

SA-G56

Area
Suffix for
Model N 0. Area Colour
(PP) USA. and Canada (K)

L Please file and use this Service Manual together with the Service Manual forlModel No. SA-EX100(PIPC)brder No. MD9510121C1. ]

Note : This Simplified Service Manual is provided to indicate the main difference between the orginal Model No. SA

subsequent Model No. SA~G56 (PP).

CHANGES

I SPECIFICATIONS

I Amplifier Section

Rated minimum sine wave RMS power output
40 Hz-20 kHz both channels driven
0.8% total hamonic distortion

1 kHz continuous power output,
both channels driven 0.8% total
hamonio distortion

Total harmonic distortion

100W per channel (89)

103W per channel (39)

Rated power at 40 Hz - 20kHz 0.8% (89)
Half power at 1 kHz 0.07% (89)
Dynamic headroom 2dB (89)
SMPTE intermodulatlon distortion 0.3% (89)
Low frequency damping factor 30 (89)
Load impedance 851

Frequency response
PHONO RIAA standard curve : 0.8dB
CD, VCR, TV, TAPE 10HZ - 70kHz, i 3dB
Input sensitivity
PHONO 0.4mV (3mV, IHF '66)
CD, VCR, TV, TAPE 27mV (200mV, IHF '66)
SIN (IHF A)
PHONO 70dB (78dB, IHF 66)
CD, VCR, TV, TAPE 75dB (83dB, IHF '66)
Input impedance

PHONO 47k9

CD, VCR, TV, TAPE 22k9
Tone control

BASS 50Hz, +10 to -10dB

THEBLE 20kHz, +10 to -10dB
I General

Dimensions (W x H x D) 430 x 136 x 309 mm

nee/,6 x 511/32" x 125/32")

Notes :

I Amplifier Section

Rated minimum sine wave RMS power output
40 Hz-20 kHz both channels driven
0.9% total hamonlc dlstortion

1 kHz continuous power output,
both channels driven 0.9% total
hamonic distortion

Total harmonic distortion

100W per channel (89)

103W per channel (89)

Rated power at 40 Hz - 20kHz 0.9% (89)
Half power at 1 kHz 0.07% (89)
Dynamic headroom 2dB (89)
SMPTE intermodulation distortion 0.9% (89)
Low frequency damping factor 30 (89)

Load impedance
Frequency response

PHONO

CD, VCR, TAPE
Input sensitivity

PHONO

CD, VCR, TAPE
SIN (IHF A)

PHONO

CD, VCR, TAPE
Input impedance

PHONO

co, vcn, TAPE
Tone control

BASS

TREBLE
I General
Dimensions (W x H x D)

Specifications are subject to change without notice.

Weight and dimensions shown are approximate.

Technics®

89

RIAA standard curve i 0.8dB
10Hz - 60kHz, i SdB

0.4mV (3mV, IHF '66)
27mV (ZOOmV, IHF '66)

70dB (78dB, IHF '66)
75dB (ssdB. IHF '66)

47:41
22kg

50HZ, +10 to -10dB
20kHz, +10 to ~10dB

430 x 130.5 x 309 mm
(161545" x 5v; x 125/32")

© 1996 Matsushita Electronics (S) Pte. Ltd.
All rights reserved. Unauthorized copying and
distribution is a violation of law.

Contents

Page 2

SA-G56

! WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain
warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity should
be serviced or repaired only by experienced professional technicians. Any attempt to sen/ice or repair the product or products dealt with in this service
information by anyone else could result in serious injury or death.

I Line up of Components

System Name

Cassette Deck (Made in MESA)

Unit SO75PC-K S1750P-K
Amplifier (Made in MAV) SA-GSGPP-K SA-G56PP-K
Electronics Block (Made in MESA) SD-3907PC-K SD-3917P-K

RS-TR1 BOPP-K

CD Changer (Made in MESA) SL-MC59PP-K SL-MCSQPP-K
Accessories Box (Made in MESA) SH-WA07PC-K SH-WA17P-K
Front Speaker (Made in MEP) SB-A27PP-K SB-A27PP-K
Rack (Made in MEP) SH-KS17PC-K SH-KS17P-K

I Replacement of the Fan Motor

Fan unit

Release the 3 claws.

When replacing the fan motor, align the boss of the
fan case with the hole of the fan motor.

Hole

Fan case
\ Boss

Fan motor

Flear panel

Put a screwdriver at the root Remove the tan cap.
of the fan and remove it.

Fan motor

Desolder the wires from the \
motor terminal and replace it
with a new one.

Motor Fan case

terminal

Page 10

SA-G56

I Cabinet Parts Location

Page 11

I Replacement Parts List

Notes:

' Important safety notice :

Components identified by & mark have special characteristics important for safety.

Furthermore. special parts which have purposes of fire

When replacing any of components, be sure to use only manufacturer's specified parts shown in the parts list.
The parenthesized in the Remarks columns specify the areas. (Refer to the cover page for area.)

Parts without these indication can be used for all areas.
[M] in Remarks column indicates parts that are supplied by MESA.
" [MAV] in Remarks column indicates parts that are supplied by MAV.
' The "(SF)" mark denotes the standard part.

Part No. Part Name & Description Remarks Ref No Part No. Part Name a Description Remarks Ref No Part No. Part Name & Description
CABINETAND CHASSIS 10402 M521 BAP BUFFER AMP 0901 RVTDTC114YST TRANSISTOR
|C451 ANSSSB-F OP AM P IO [M] 0902 2SA933SSTA TRANSISTOR
RKM0260B-KJ TOP CABINET [M] 10501 BA6218 MOTOR DRIVER IC
RGR0175H-A REAR PANEL [MAV] ICS11 UPC457DC TONE CONTROL IC DIODES
RGWD243A-K VOLUME KNOB [MAV] ICSO1 RSNGSOS-P HIC [MAI/11k
SKL293 LEG CUSHION I0901 UPD78043A041 MICRO COMPUTER [MAV] D1 SVC211SPA-AL DIODE
RK00089 PCB SUPPORT D2 SVC211SPA-AL DIODE
RMCO156-S TR FIXTURE [M] TRANSISTORS D3 SVC211SPA-AL DIODE
RMK0276 BOTTOM CHASSIS [M] D101 MTZ05R1BTA DIODE
RMN0372 FL HOLDER [MAV] Q1 2SK544F-AC TRANSISTOR D102 RVD1 SStSSTA DIODE
SNE2123 EARTH T ERM INAL 02 2S02786MTA TRANSISTOR D401 MTZJ7RSCTA DIODE
RXX0169 HEAT SINK UNIT [MAV] 03 2502787FL1TA TRANSISTOR D601 RVD1SS133TA DIODE
RG U1349-K S ELECTOR BUTTON [MAV] 04 2SC2787FL1 TA TRANSISTOR D603 MA700ATA DIOD E
RGU1350vK MODE BUTTON [MAV] Q10] 2SC2767LTA TRANSISTOR D605 SB360L6508 DIODE [K
RGW0244-K BASS T REBLE KNOB [MAV] Q 103 2302785 FETA TRANSISTOR D606 8336416508 DIOD E fl:
RHN90001 M9 NUT 0104 2502785FEIA TRANSISTOR D609 RVD1SS133TA DIODE
RSCOOZ7 TUNER PACK 0106 UN411FI'A TRANSISTOR D701 1N54023M21 DIODE A
RFKGSAGSGPPK FRONT PAN EL ASSY [MAV] 0107 2S03311ARTA TRANSISTOR D702 1N54023M21 DIODE [k
SNE129-1 SCREW (CABINET) 0108 2803311ARTA TRANSISTOR D703 1N54028M21 DIODE LIX
XTBSG+8JFZ1 SCREW 0505 2SD1915FTA TRANSISTOR D704 1N5402BM21 DIODE A
XTBS+20J FZ SCREW 0506 2801 91 5FTA TRANSISTOR D707 MTZJ6R2BTA DIODE A
XTBS+6FFZ SC R EW 0601 28A1309ARTA TRANSISTOR D708 MTZJ6R2BTA DIODE A
XTWSS+8T SCREW 0681 ZSDIQISFTA TRANSISTOR D710 MTZJ27DTA DIODE A
XTW3+15T SCREW 0682 ZSD1915FTA TRANSISTOR D712 MTZJISCTA DIODE [A
RH026016 SCREW 0701 2SD2374PQAU TRANSISTOR [E D721 1N54028M21 DIODE A
XTBS25+10J SCREW 0703 2503311ARTA TRANSISTOR A D722 1N54028M21 DIODE A
RY00173K FAN UNIT [MAV] 0704 2SC$311ARTA TRANSISTOR A D723 1N5402BMQ1 DIODE A
MDN-4RB4MRC MOTOR 0705 2SC$311ARTA TRANSISTOR & D724 1N54023M21 DIOD E &
REX0511 CONNECTOR UNIT [MAV] 0706 2603940AQSTA TRANSISTOR AX D751 1$R35200TB DIODE m
SHE232 64MM FAN 0707 2SBlS48PQAU TRANSISTOR & D752 1SR35200TB DIODE A
51422334 FAN CASE 0709 25A1534AORTA TRANSISTOR [WAX D753 1SR35200TB DIOD E &
SHEZB4 FAN CASE COVER 0751 UN421FTA TRANSISTOR D754 1SR35200TB DIODE &
SU8271 MOTOR SPRING 0752 26C394MQSTA TRANSISTOR A D755 RVDI SS133TA DIODE [A
0771 2SA1909ARTA TRANSISTOR D756 MTZJS RSBTA DIODE A
INTEGRATED CIRCUITS 0772 ZSA1309A RTA TRANSISTOR D771 RVD1SS133TA DIODE
0773 ZSBS21ARTA TRANSISTOR D772 MTZJSRSBTA DIODE
LA1632A IF/MPX IC 0774 ZSA1309ARTA TRANSISTOR D773 RVD1SS133TA DIODE
LC7216 PLL IC 0775 2SA1309ARTA TRANSISTOR D901 1SS291TA DIODE
T09163N SELECTOR IC 0776 2SA1309ARTA TRANSISTOR DQOG MTZJ4R7BTA DIODE

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