Sansui G 801 901 Service Manual

Page 1

SERVICE MANUAL

Salunu:

Page 2

678000/801

6-9000/901

AM section
Tuning range 530 to 1,600 KHz
Usable sensitiwtv (hzr antenna)
. ........... 50 dB/mUDD LIV/m)
Selectivity (:10 kHz) . 30 05
signal to noise ratio . . . 50 dB
Distortion iat 30% Modulation, 80 dB/m)
less lhln 0.5%

Others
Power requirements
power voltage ..... I00,120,220,240 v

(50/60 Hz)

Audio section
Power output
Min. RMS, tooth channels driven, from 20 to 20,000 Hz
with no more than 0.03% total harmonit distortion.
160 watts per channel into 3 ohms
160 watts per channel into 4 ohms
Load impedance . 4 and 3 ohms
Total harmonic distortion

less than 0.03% at or below
rated min. RMS power output
lntermodulatlon distortion (70 Hz :7 kHz = 4:1 SMPTE
method) . . . , . . less than 0.03% at rated power
output
Frequency response (at I watt)
Overall (from AUX) . 5 to 50.000 Hz,+0.2 dB,
715 dB
POWER AMP IN . .. DC lo 200 kHz, «0 03, 73.003
RIAA curve deviation (PHoNo, 20 Hz to 20 kHz]
............. +0.2 43, -0.2 as
Damping hctor (20 Hz to 20 kHz, both channels driven)
.... saintosohms
lnput sen ivlty and impedance lot 1 kHz)
PHONO-l . 2 2,5 rnv/47 kilonms
(Max. inpulcapabi 330 mV at 1 kHz, less than
0.03% total harmonic distortion.)
Mic .......... 6 mV/10 kiiohms
TAPE-l, 2 PLAY, AUX
............ 150 mv/n kilahms
Output level iatl kHz)
TAPE-1,2 REC (pin jacks)

............ 150 mV
TAPE-2 REC/PLAY (DIN socket)
. . . , . . . 43 mV
PRE AMPOUT 1.0V
Hum and noise lshorutircnil, Anetwork)
PHONO-1,2 ..... 78 dB
TAPE~1, 2 PLAV,AUX
. . . . . . . . 95 on
Channel separation int i kHz)
motion, 2 ..... 60 d0
TAPEaI , 2 vLAv, AUX
............ 70 an
Controls
BASS ......... :lotla at so Hz [BASS

TURNDVER at 400 Hz)
200,400 Hz

. :5 mar 15 kHz

. :10 dB at 10 ItHz irREBLE
TURNOVERat 1.5 kHz)
1.5,?! kHz

73 dB at '16 Hz is dE/ocl)

Tone selector . . . .
MIDRANGE
TREBLE

Tone selector , . . .
SUBSONIC FILTER .

HIGH FiLTER . . .. 7305 at 3 kHz (6 dB/octi
LOUD Ess (VOLUME control: 7300i! position)
.. .sdaatsonz
6 dB at 10 kHz
AUDIO MUTING . 710 on
FM section

Tuning range . . . . 88 to IDS MHz

Usable nnsltivily

Mona IHF ....... 8.7 dBf (1.5 uv)
DIN. . . . 0.9 uv
Stereo IHF . 15.0 dBf

Power consumption
Rated consumption.
Dimensions ........

Weigh! ...........

$60 warts 630 VA

560 mm127s1/16' w
201mm(7715/16)H
475 mm (18-3/8") D
24.6 kg (54 2 lbs) net
27.4 kg (50.4 lbs) packed

' Design and succificilions subject to change without
notice rat improvements.

50 dB quietlng sensitivity
Mono . 4 .
Stereo .

signal to nolse ratio (at 65 dial)

Mono
Stereo . . . .
Distortion lot 65 dBf)
Mono

12.5 037
34.0 dai

80 dB
76 dB

1ess than 0.06% at100 Hz
less than 0.06% at 1.000 Hz
less than 0.08% ai 6,000 Hz
less than 0.1% at 100 Hz
less than 008% at 1,000 Hz
less than 0.1% at 6,000 Hz

Alternate chinnel selectivity (at 400 kHz)

WIDE

NARROW .
C/lpture ratio . .
image response ratio .
Spurious response ratio .
IF 5an ratio . e .
stereo separation . . .

Frequency response .

Hum 2nd noise (at as am)

Antenna input impedance

AM section
Tuning range .......

. SSdB
. 90dB
. 0.9113
. 110.!

0:13

.lladB
. 40dBa1100 Hz

so do at Loco Hz
40dBll10,000 Hz
30 dvaom 30 to 15,000 Hz

, 301015300 Hz

+0.2 03,40 da

300 ohms bahnced
75 ohms unbalanced

531) m 1,600 kHz

Usable sensitivity ioar antenna)

Selectivity (:10 kHz) .
signal to noise ratio . . .

so dE/In (200 uv/m)
zoos
suds

Distortion (at 30% Modulation, 80 (film)

Image response ratio .
IF response ratio . . .

Others
Power requirements
Power vo|rage .....

iner consumption

Rated consumption.
Dimensions ........

weight ...........

Design and Specificalions
notice (or improvements.

. less than 0.45%
. 70 dB at 1,000 kHz
. 70 dB at 1,000 km

100120, 220, 240 V
(50/50 Hz)

530 watts 880 VA

550 mm (22»1/16") w
2m mm (7.151160 H
495 mm 1194/2") D
25.9 kg [59.3 lbs) net
29.7 kg (65.5 lbs) packed

suhiecl ro change without

1. BLOCK DIAGRAM

Audio Section
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Page 20

(378000,801
(3-9000/901

24. F-2797 FM Accessory SW Circuit Board 25. F-2800 Volume Circuit Board
Sloc N0. 7595801063000/801 {Stock No. 7562081063000/801
Conductor Side Stock No. 759588106-9000I901 Conductor Side

Stock No. 756212106-9000/901 .

' SANSUI F2800 7

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Parls List
Paris List Fun: '40. smk Nu. Dmvipuon
Pun Nu. smk No. Dunmim vac! um I I50 50 m x 2 Volume. MM
5 0| I I77BO Lever Swilch, FM lF BAND
<6 9000/90! >
s 02 I W730 Lever 5mm
FM AUTO Nmse FlLTEfi
S 03 H7Y7BU Lev-9r Swllch, DUDV FM.
DE EMPHASIS
s 04 7le Lever 5mm 04qu
s 05 Mime Levsmmcm FMMUTING
240630 4P Pin Ass! TYW F
2410700 seem Any Time F
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5. 0TH ER PARTS

TH703 TR705 RL701 TR708 TR702
TR707 TR701 TR704 TR706

Voltage
Selector
F 701

VR02

Antenna
Terminal

Balun
Antenna
Holder
Bar
Antenna

Tension
P L702 Unit

I7