Sansui Z 5000 Z 3000 Service Manual

Page 1

SERVICE MANUAL

QUARTZ SYN'IHESIZER COMPU-RECEIVER

SMISIII 2-5000/ 3000

.....o-

....,... _

SANSUI ELECTRIC CO., LTD.

0 S?ECIFICATIONS

O 2-5000
Audio section
Power output - . . .
Min. RMS, both channels driven, from 20 to 20,000 Hz, with
no more than 0.007 36 lolal harmonic distortion.
70 watts pet channel into 8 ohms
Load impedance . . . . 4 and 8:)th
Total harmonic distortion . . .
from AUX ..... , less than 0.007 96 at or, belcpw rated
min. RMS power output
Frequency response (at 1 watt}
frOm AUX ...... 10 to l00,000 Hz,
+1.0 :18. 3.0 dB
RIAA curve deviation {PHONQ 20 Hz. 20 kHz)

............. +0.5 dB. --0.5 dB
Input sensitivity and impedance (at I kHz)
PHONU ....... 2.5 mVM'} kilohms
IAPE PLAY, AUX . 750 mVM? kilohms
mc ......... 0.5 Nil/{20 kilohms
Outpulleml {at l kllz}
IAN REC ..... ISO mV
Signal to noise ruin {short-circuit, A-nclwmk]
PHOBO ....... 82 dB
IAPE PLAY, AUX . 95 08
FM section
Tuning Vince ...... 83 to 107.9 MHz
Usable unsittvltv
Mono ........ "5.8081
Sumo ..... . . 20 (181'
SOdS quitting sensitivity
Mow . . . ..... 10.5d3f
Stetco . . . . . . . . 33,0 537
Signal 10 noise ratio la: (:5 63!}
Mono ........ .16 d8
Stemo ,,,,,,,, In 68
Distortion {3165 cm]
Mono . . ..... less than 0.35 56 131.000?
Stereo ........ lest Ihan0.2%at IIOOO H'I
Alternate channel wlectivity (a: 400 kHz]
............ 55 do
Capture ratio ..... . 1.0 (m
Spurious rewome ratio S7} CE
W retpome ratio . . . 90dB
Stereo teparation . . . . 40GB 31 1.000 H:
Frequency response , . 3-3 to IS.00(J H:

4:.0d8. I.S 63
Antenna input impedance
............ HOG chm: balanced
25 ohmt unbalanced

AM section

Yuning range . . . . . 530 to ..600 kHz
Usable aeruitivih, . . . . SOdBim
Selectivity ........ 30dB

Signailn umii: min . . 45m
Dist-anion 1.". 30 9e. Modumlsn, 30 dfiftr.)

............ loss than 0.5 56
Others
Pawe: requirements
Pewc. mlzas: . . . . 0,220, 740 V ($0350 HP}

For L.S.A. and Canada
........... :2" v :50 Ha}
Pawer contuntplion
Rated (onsumption
........... 260 warn 125 VA
Dimensions ....... 430 Mm {va 5," 6") W
133 mm {5434"} H
160 mm {ii-flfls) 0
Weight .......... 8.6 kg(191m.}net
9.9 {21.8 ios.) packed

O 2-3000
Audio section
Pawer output
Min. RMYS. both channexsdriven, from 29 to 20.00% H7, with
.to more than 0.005 :63 total ngrmonic distortion.
55 watts per channel into 3 ohms

Load Impedance . . . . Sohm;
Total harmonic distortion
lrom AUX ,,,,,, less than 0,005 6.4. 3'. 0: below taxed

min, RMS newer output
Frequency response :4: 3 wall!
Trom Abx. . . . . . 2010 100.300 H2.
+i.G dB, -'5.0 dB
RlAA cane deviation [PHONQ 20 Hz, 20 kHz]
,'*9.5dB,-0.568
Input sensitivity and impedance (at 1 kHz]
PHONO . . . . . . . 2.5 mVH? kllohms
TAPE-l PLAY, AUX . 0 medl kilohms
Output level (at I kHz]

TAPE REC ..... ISO mV
Signal to noise ratla {short cimuit, A-nezwork}
PHONO ....... 3') GB

TAPE PLAY, AUX . 95:13

to be continuedb

Page 2

FM action

Tunin; tame ...... 88 to 107.9 MHz
Usabie sensitivity
Mono ........ 10.8 dBIr
Stereo ........ 20 at
50 do twisting sensitivity
Mono ........ 16.5 dB!
Stereo ........ 37.0 def
Sinai to noise ratio (at 65 d3!)
Mono ........ 76 dB
Stereo ........ 70 dB
Distortion (at 65 dB!)
Mono ........ less than 0.15 96 at 1.000 H2
Stereo ........ less than 0.2 8 at 1.000 H1
Alternate channel selectivity (at 400 km)
............ 55 dB

Capture ratio ...... 1.0 dB
Spurious response ratio 80 dB

IF lemons- ratio . . . . 90 dB
Steteo separation . . . . 40 dB at 1,000 N:
Frequency response . . 30 to I5,000 Hz

41.0 dB, -i.5 dB
Antenna imut impedance
300 ohms balanced
75 ohms unbalanced

............

AM section

Tuning range ...... $30 to 1,600 km
Usable sensitivlty . . . . SOdBlm
Selectivity ........ 30 d8

Sinai to noise ratio . . 45 dB

Distortion {at 30 % Modulation, 80 dB/m)

Others
Power requirements
Power voltage . . . . 120, 220, 240 V (50/60 Hz]
For U.S.A. and Canada

........... 120 V (60 Hz)
Powet consumption

Rated consumption
. 260 watts 325 VA

430 mm (16-1 5/16") W

133 mm (5-1/4) H

360 mm (14-3/16") D
Weight .......... 1,1 u (I7 lbs.) net

9.0 It; (I 9.8 lbs.) packed

Design and peclfieations subiect to shame; without

............ less than 0.5 96 notice for improvements.
1. BLOCK DIAGRAM
1-1. Audio Section
IEO Amp.»
W-sooou vow"; .
MSZIBLII-WOO) .- m, WW MW PM! Arno.
mono r-z *8 am
no ,-- 75-1 FIUUIO 2J8? 0
3 I2 I I Q A~s
I t 1 45L 05" ww-
. . _. (2-5000:
l 0 I .
. . | GI
I I': l : 5 Lug:
: H l/2 eiCe 9-5,.m
J. I
i3
BALANCE
From ' .
Tune! c "°
50mm :12 one: L
:0 I l-M-V WES
PLAY6 {'9' PEAK man mum
P v: oIC . " --------- n
I : ll -9
TAPE-I l UGOUUQT'
LEEPP. ....... J I
"me "65 FIGTDDDDD-Q-QDA?
I - . . i
w m r . .1925: 993.599,.-.
[-PLAYG w :" '°; R-cn
é i.-- I -J *
TAPE-2
050 E- oOqu
Late or
M 0-65
i
: to Tuner
: "v Section
. I3 ' E
me LEVEL MIC Arno. lZ 5000) . a: p
MIC v2 . < r b
. .1
Why L :
-___J
.
SPEAKERS
'"L' momma
° 2&3
+8 032- s
3 IRL2 c' E
use.
002 TAPE-I
we &
TAPE-I " "- "1 °'-'L
cc:
to luv Section
L