Sansui D 350M Service Manual

Page 1

SERVICE MANUAL

Track .......... 4vTrack (2-Channel Stereo)
Tape speed . . . 4.3 cm/sec. (1-7/8 ips)
Heads .......... Record/Playback: FH Head

DIRECT DRIVE CASSETTE DECK Mm 521223°§2'2332323§£f

Reels: DC Motor

Wow and flutter . . . . within 0.035 % WRMS
I Fast wind time .... approximately 75 seconds (C-60)
Frequency response (Record/Playback)

(Silver & Black Model) W T' M 2° V)

............ 2010164300 Hz
(251015300 H2 23 d5)
Metal Tape (-20 VU)
............ 20 to 19,000 HZ
(25 to 18,000 Hz :3 dB)
(0 VU) . 25t013,000 H1 :3 dB

, em signal (a noise ratio (Record/Playback)
' Metal Tape (without Dolby Noise Reduction Effect]
........... better than 59 dB (weighted)
(With Dolby Noise Reduction)
............ better than 69 dB (above 5 kHz)
Erasure factor (Metal Tape)
............ more than 70 dB 1,000 Hz
Input sensitivity and impedance (0 VU, 1,000 Hz)
MIC ......... 04 mV/QOOD ~ 5 kn
LINE IN (REC) . . . 70 mV/47 kfl

Output levei (O VU, 1,000 Hz)
LINE OUT (PLAY)
PHONES ...... 60 mV
Power requirements
Power voltage. l r . 120, 220, 240 V (50/60 Hz)
For U.S.A. and Canada
........... 120 V (60 H1)
Power consumption
........... . 25 W
Dimensions .. . . . . e 430 mm (16-15/16") W
125 mm (5-1/16") H
282 mm (l11/8")D
Using rack mounting adaptors
............ 480 mm (18-5/16) w
128 mm (5»1/16) H
302 mm (11-15/15) D
Weight
Silver panel type . . 5.8 kg (123 lbs) net
Black panel type . r 5.9 kg (13.0 lbs) net

Design and specifications subiect to changes without
notice for improvements.

Sans-111'.
SANSUI ELECTRIC CO., LTD.

Page 6

2) Rec Level & Frequency Resnonse Adjustment Fig. 35 VYVM OSCILLOSCOPE

Note: I. Rec Level Volume . . .1. Max. SIGNAL GENERAYDR cassarr: DECK
2. Connections are shown In Fig. 3-6. T O
3. Set the Dolby N R switch to be OFF. N LINE : :1:
EJ on J J ,0
LINE OUT
STEP suai ECT S'IEQUJL 35433155 SETTING ADJUSTMENT REMARKS
l. - REC Feed i kHz, LINE OUT Load the TEST TAPE 1. If not,turn jVRI (REC, jVRI EREC, L-CHgyand
Level Adj. 70 "TV from VTVM SCT-SA. LCHgand jVRI (REC, iVRI REC, R-CH are
5.6 into Scope Set TAPE SELECTOR to R-CH until output level shown in Top View on
LINE IN, HIGH (00;) position. 400 mV :2 dB on both page I I.
I. Depress PAUSE, PLAY channel are obtained.
and REC button, 2. Repeat this REC Level
2. Adjust the Rec Level adj. until the indication
Volume for obtaining an VTVM will be 400 mV
400 mV on VTVM. :2 dB.
3. Push off the PAUSE but-
ton, then record thel kHz
signal.
4. Play back the 1 kHz signal.
5. Confirm that the output
levels on both channels are
400 mV *2 £13 on VTVM.
2. Frequency Feed I kHz Same as Load the TEST TAPE I. If not, adjust kVRI L for As kVRI L and kVRI R are
Response 7 mV above SCT-SA. L-CH and kVRI R for previously adjusted In step
Adj. (-20 dB) and Set TAPE SELECTOR to R-CH slightly until the of Bias Adjustment, turn
10 kHz HIGH (00;) position. output levels will be them slightly, if necessary.
7 mV 1. Record thel kHz and equal.
(-20 dB) 10 kHz signals from 5.6.
from 5.6. 2. Play back the 1 kHz and
into LINE 10 kHz signals, then can-
lN. firm that both output
levels equal.
3-4. Peak Level Indicator Adjustment Fm 3_7 VTVM OSCIMSCOPE
Note: I. Set the TAPE SE LECTOR'to be NORMAL SIGNAL GENEMTOR CASSETTE DECK )Y
(LH) position. 0
2. Set the Dolby NR Switch to be OFF. 1L :1 C J L. J -
3. Connections are shown in Fig. 3-7. '° P m our °' °
INPUT MEASURE
STEP SUBJECT SIGNAL OUTPUT SETTING ADjUSTMENT REMARKS
I. Peak Level Feed l kHz, LINE OUT Load the TEST TAPE I. Light DVU indication See Top View on page H.
Indicator 70mV from VTVM SCT-SA of Peak Meter to adest
Adjustment 5.6. into Scope 1. Depress PAUSE, PLAY mVRI (L-CH), mVRI
LINE IN 5: REC button. (R-CH) on 6-1282.
2. Adjust the REC Level
Volume for obtaining
400mV on VTVM.
6 List of Sansui Test Tape 9 Tape Selector Position
Nun-onesr nee 3:32:sz Durlnxlon 3f 3"": WE mm
TDNBAND '
SGT-F40 to H1 Playback Frequency Response Cheek
scram K I m: High Frequlncy Equalization Check
SCTVFIOK 10 kHz REC/PB Hem Adiusiment
scr-LaooN 400 Hz Playback Level and Indium! Level Adjustment
scrsax 3 kHz speed Cheok and Wow a Flutter Check "(1me
scT-LH NORMAL lLH) Recording Bias Adjustmant
scrrsa HIGH (00¢) REC/PB Level Adjustment
sCTcs rec. Fraquency Hmponse Chm

MAJ:

YALLIC

'QNORMAL
HIGH

' (I REC/ENfi/AUFNANME 9 PLAY/REPfiO/WIEOERGAIE