Sansui D 55M Service Manual

Page 1

0 SPECIFICATIONS
Track .......... 4-Track (2-Channel Stereo)
Tape Speed ....... 4.8 cm/sec. (1-7/3 ips)
Motor .......... Electronically Controlled
STEREO CASSETTE DECK 0cm
Wuw and flutter . . . . within 0.07 % WRMS
Fast wind tlme ..... approximately 100 seconds (C-60)
Frequency response (Record/Playback)
snusum-ssm
............ 20 to 15,000 Hz
' (30 [014,000 Hz 23 dB)
(Silver & Black Model) Wampum, VU,
............ 20 to 16,000 Hz

(30 m 15,000 Hz :3 as)
(o vu). 30 to 12,000 Hz :3 dB
Signal to noise ratio (Record/Playback)
Metal Tape (without Dolby Noise Reduction Effect)
............ better than 58 dB (weighted)
(With Dolby Noise Reduction)
............ better than 68 dB (above 5 kHz)
Erasure factor (Metal Tape)

............ more than 70 dB at 1,000 Hz
Input sensitivity and impedance (0 VU, 1,000 Hz)
MIC ......... 0.4 HIV/2000 ~ 5 kn

LINEIN(REC). 150 mV/47 kn
Output level (0 VU,1,000 Hz)
LINE OUT (PLAY) 240 mV
Power requirements
Pawer voltage t . i . 120/220/240 V (50/60 Hz)
For U.S.A. and Canada

........... 120 V 160 Hz)
Power consumption 11 W
Dimensions ....... 430 mm (16-15/16")W

118 mm (4-1I/16) H

223 mm (8-13/16) D
Weight .......... 3.2 kg (7.1 lbs) net

4.0 kg (8.8 lbs) packed

Design and specifications subject to changes without
notice for improvements.

" The word Dolby" is trademark of Dolby Laboratories.
This product is manufactured under the licence from
Dolby Laboratories,

SANSUI ELECTRIC CO., LTD.

Page 5

3. PARTS LOCATION 8: PARTS LIST

3-1. F-3812 Power Supply Circuit Board (Stock No. 00698101)

Component Side

OSince some of capacitors and resistors are omitted
from parts lists in th is Service Manual, refer to the
Common Parts List for capacitors & resistors,
which was appended previously to Sansui Manual.

A J B I
, REC/PLAY AMPM
@ 5
_ 9 , R
a 31 .12).: g a
2 on -Mr- E
4 n m g 5 a
in 2 .
1 g I. (n)
m we -~w- INDICATOR
m
I- or
-1 ' 2 fi- , I; '5% air:
3 .1 . r: z r:
_ :1 2' p 3
n3: 2 1w! 0 a 5%;
2
3 ca 3,
a 1
-fi. .4. a-s
I a 0' c1 .
:1 M
m E?
+ I] I." 72 n
. 4' E9
POWER supptwm)

M2:
M2:

Parts List
Pm; No. Stack No. Descrimion Pun: Na Stank No. Dlscriptinn
lTransislor v04 46367001 28A1115
mQ1 03086101 280357 or 46392001 25A1175
mQZ 46367101 2502603 v05 46367001 ZSA1 115
or 46391901 25152785 or 46392001 23A1175
mClS 03085201 280438 v06 45367101 ZSC2603
or 46391901 25A1175
ODiode v07 46367101 2802603
mD1 46273600 033103 or 46391901 ZSC2785
v08 46367001 23A1 1 15
nZener Diode or 46392001 ZSA1175
sz1 46114000 05212-2 v09 46367101 2$C2603
mDZZ 46113200 0521D»X or46391901 28C2785
v010 46367001 2$A1115
OTransistor or 46392001 2SA1 175
n01 46367101 ZSC2603
ur 46391901 ZSC2785 ODiode
vD1 03117600 1824730
nCI 07211700 1000DF 25V CC. or 46086000 151538
v02 031 17600 1524730
0J1 46212000 Jack, MIC or 46086000 151588
0.12 46363600 4P Input Terminal. R EC/PLAY v03 03117600 1524730
or 46086000 151586
tTransistor v04 03117600 1524730
v01 46367101 25C2603 ur 46086000 151588
or 46391901 25C2785 VD5 03117600 1824730
v02 46367101 2802603 or 46086000 1 51588
or 46391901 25C2785
v03 46367101 2802603 V31 46364400 Slide SW., Fl EC
or 46391901 2SC2785