Sansui G 7500 Service Manual

Page 2

Specifications

AM section Others Dimensions ........ 505 mm (19-15/16) W
Tuning range . . . . . . . 530 to 1,600 kHz Power relluiremems 182 mm (7»1/8) H
Usable sensitivity {bar antenna) Power VOIUEC ------ 100,120, 220, 240 V 409 mm (16-1/8") D
.............. so dB/m (300 pV/m) (50l60 Hz) Weight A A . . . . . . . , , 17.2 kg(37.9 lbs) net
Selectivity (:10 kHz) . . 35 dB For USA. and Canada 19? kg (43.4 lbs) packed
Signal to noise ratio . . . 46 dB ------------ 120 V (60 H1)
Distortion (at 30 % Modulation, 80 dB/m) POW consumption
.............. [e55 than 05 94, Rated consumption . 285 watts 350 VA

* Design and specifications subject to change without notice forimprovements.

1. BLOCK DIAGRAM

1-1. Audio Section

POWER METER
POWER METER ,
AM FM ADJ.
PHONE JACK
NF TYPE POWER ' V
AMP
PHONOI 5° TAPE TAPE 4OH/NR AuDiO BALANCE TONE CONTROL SUBSONIC AMP
C \\ MONI MONz ADAPTOR MODE MUTING VR VOLUME FILTER
E M U?
C _1 SSPEAKERS
W
PHONO 2 LOUDNEss E: R ,
AUX C it. E
REC C
PLAYC TAPE l TONE
REC (0% R-CH DEFEAT
PLAYCc: TAPEz
MlC AMP PROTECTOR
_ . ClRCUIT
MIC JACK 3 DiN JACK
fl__ -
Mic VR
L
1-2. Tuner Section
r
GROUP DUADRATURE
. . DELAY DETECTOR
Cgramic Cgrumlc Cgromic EQUALIZER CiRCUlT PLL MPX
FM Filler AMP Filie' AMP Filter iE,Tc SEPARATION
INPUT Adj
°- FM »
Emmi \ E E 22
0- .
, DE~ENPMA51$
4Gong V.CV CF02 TR03,TRO4 CF03,CFO4 TROSJROS CF05 T02 SELECTOR
FM Si Dal
Meter :3; /1\ w 3
. STEREO
Signal Meier i M TWME iNDlCATOR
/7\ Selecior TR _ +B(BVl
_ SELECTOR
Muiing _ (AM Mmingl
Adj
1st PLL vco
iqnol AdilTGHz)
AM TUNER May/Adl-
AM
INPUT
(to Selector) L'PLEOI
2 Gang V,C, AM OUT
MUTING
CIRCUIT g4
Dolby FM
FM , FM DE-ENPHASis >-®-
MONO MUTING SW
SW sw -
L-CH R-CH
*3 BV FM OUT
(10 Selector)