Technics SAEH 750 Service Manual

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Page 1

Remote Control .5
Transmitter

*SB-PC75

ORDER NO. ADQQO306302

ervice Manual

Tuner/Amplifier

SA-EH75O

Colour
(8) ........ Silver Type

* S B-PS75

Areas

(E) ........ Europe.

(EB) ...... Great Britain.
(EG) ...... Germany,

' H Italy, France,
*sa-Emso RS-EH750 SA-EH750 * SB-EH750 Netherlands
. . and Denmark.
Because of unique Interconnecting cables, when a component (EP) , . CIS
requires service, send or bring in the entire system. " '
System SC-EH750
Sound Processor SH-EH750
. , Tuner/Ampliﬁer SA-EH750
Specifications co Changer SL-EH750
Amplifier Section Cassette Deck * FiS-EH750
Power output (at HIGH terminal): Fm Speaks SB'EH750
DIN 1 kHz, THD 1 %, both channels driven; 2 x 70 W (6 (1) Center Speaker* SB-PC75
HMS 1 kHz, THD 10 %, both channels driven; 2 x 100 w (6 ti.) Surround Speakers* SB-PS75

Prologic mode (at HIGH terminal):
DIN 1 kHz, THD 1 °/.

MAIN (both channels driven); 2 x 70 W (6 n)
CENTER; 45 w (a n)
SURROUND; 2 x 25 w (8 it)

RMS1kHz, THD 10%

MAIN (both channels driven); 2 x 100 W (6 (I)
CENTER; 60 W (B n)
sunnounn; 2 x 30 w (a n)
PMPO1 kHz: ,000 W

3
(MAIN 6 n, CENT. 8 t), SURR. 8 a)
Total harmonic distortion:
Rated power at 1 kHz;
Half power at 1 kHz;
Load impedance:
MAIN (HIGH/LOW);

1 % (e o)
0.1 % (a ti)

total impedance 6 n

CENTER; 8 (L
SURROUND; a n
S.WOOFER:
Center lrequency; 70 Hz
LEVEL (VOL-2O dB): MID +8 dB
MAX +12 dB
FM tuner; Section
Frequency range: 87.50 - 108.00 MHz (0.05 MHz steps)
Sensitivity: 1.8 W (IHF usable)
SIN 25 dB: 15 (N
SIN:
MONO; 70 dB (75 dB, lHF)

Antenna termlnet(s): 75 Q (unbalanced)

*: Made in Singapore
AM tuner Section
Frequency range: 522 7 t 629 kHz (9 kHz steps)
520 --1630 kHz (10 kHz steps)

Sensitivity (SIN 20 dB): 500 uV/m
Timer Section

Clock: Quartz - lock type
Function: Play timer (1 time, daily)

Rec timer (1 time, daily)

Sleep (120 min, 30 min intervals)
1 minute - 23 hours 59 minutes
(1 min intervals)

Setting (Play/Rec):

General
Power supply:
(E),(EG),(EP) areas; AC 230 V, 50 Hz
(EB) area; AC 230 - 240 V, 50 Hz
Power consumption: 205 W
Stanby;
Normal; 11 W
ECO mode; 0.6 W
Dimensions (WxHxD): 293x118.5x342.5 mm
Weight: 52 kg

Notes: Specifications are subject to change without notice.
Weight and dimensions are approximate.
Total harmonic distortion is measured by the digital spectrum
analizer

AWARNING
This service iniormation is designed Ior 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 protessionai technicians. Any attempt to service or
repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

TechnicS

Page 2

SA-EH750

I Location of Controls

m Tuner amplifier

(D Standby/on switch (Lb/l)
Press to switch the unit from on to standby mode or vice versa. in
standby mode. the unit is still consuming a small amount of
power.
@ Standby indicator (0)
When the unit is connected to the AC mains supply, this indicator
lights up in standby mode and goes outwhen the unit is turned on.
© Play timer/record timer button and Indicator
(0 PLAY/e Rec)
@ ECO mode button (ECO)
© Clock/timer, demo button
(CLOCK/TIMER, -DEMO)
FM mode select button (FM AUTO/MONO)
® Sch discrete input button (60H DISCRETE INPUT)
Source input select button (INPUT SELECTOR)
© Tuner/band select button and Indicator
(TUNER/BAND)
® Super woofer button and indicator (5.WOOFER)
63 Volume control (VOLUME)
® Headphones jack (PHONES)
® Tuning mode select button (TUNING MODE)
@ Set button (SET)
® Tuning buttons (A , V TUNING)
@ FIDS display mode select buttons
(RDS PS-DISP MODE-PTY)

Remote control E

Buttons as o iunction In exactly same way as the buttons on the
main unit.

(ED Sleep timer button (SLEEP)

® Numeric buttons (1-9, 0, 2101-1")

69 E0 select button (so)

(69 Cursol buttons (d , A ,> , V)

63) Channel select button (CH SELECT)

® Test button (TEST)

® Input selection buttons (VCR/AUXIGCH INPUT)
6;) Tape reverse playback/CD pause button (4" I)
@ Muting button (MUTING)

® Program button (PROGRAM)

® cancel button (CANCEL)

V , 3 Disc select button (Disc)

\ ' AV effect button (AV EFFECT)

we»: rum 9%;5 f @ co button (co)

WW W w ~ ® CD play/tape fonuard playback button (>)
Why W [2 _ . ® (DD/tape stop button (I)

«I . _ , > in) CD sklplsearch,tape fastfomardlrewind buttons
~ (I«/«, »/>>I)

Page 13

SA-EH750

l Boosting the Super Woofer a

Press [3. WOOFER].
[8. WOOFER] lamp lights.

- When listening to the sound through the speakers:
MID (medium)->MAX (high)-+Light all (OFF)

. When listenan to the sound through the headphones:
Light on (ON)<->Light off (OFF)

To cancel
Press IS. WOOFER] to select OFF.

l Using the Built-in Sound Quality]
Sound Field Settings E

Turn [MULTI JOG] to select the sound quality or
sound field.

when [MULTI .106] is turned clockwise the settings are selected in

the following sequence.

® HEAW (sound quality)
Select this when playing rock or other kinds of music that sound
better with an added punch.

@ CLEAR (sound quality)
Select this forjazz or other kinds oi music for which clarity in the
treble range is desired.

@ Al E0

(On me tuner ampliﬁer) - To release the equalizer
Turn [MULTI JOG] to select "FLAT".

(0n the sound processor)

15-