Akai GX 630 DSS Service Manual

Page 1

' ' max-11mm
AKAI 4-CH STEREO TAPE DECK

MODEL GX-Baon-SS

THIS MANUAL MUST BE USED A8 A SET
TOGETHER VVITH SEPARATELY PUBLISHED GXF
33°13 SERVICE MANUAL AND PARTS LIST

Page 2

.\I\\I I-(lll STEREO 'I\PL' IJICIIK

MUIHCI GX-()93() D'SS

THIS MANUAL MUST BE USED AS A SET TOGETHER WITH SEPARATELY
PUBLISHED GXélOD SERVICE MANUAL AND PARTS LIST

SECTION 1 SERVICE MANUAL ..................... I
SECTION 2 PARTS LIST ............................ 4 I.

Page 10

l T W i . l i "7*" -'i
. A
I Step Adjustment item SuitllyTSaigfm Mode djxgzzem Result 1 Remarks Y
L i u t
l i u
j DC Power Supply _ ' .
i 1 Voltage None sror Eli-12(1); l 24v i Mfg 3:, g";"; 5) 4
l Adjustment J l o ay ' om f
7 7« * i v 1
[ DC Power Supply VR-3 1 kB 1 Measure at TR~7 Emit-
2 Voltage None REC 3 (1.92301) 24V 1, ter of Servo RC Baard j
Adjustment i Z Quadra-Sync ON v
~ r * i i 1
DC Power Supply 1 . T
3 Voltage None : PLAY $32533? 24v 1 yusg; JESS: 3
Adjustment CI 0 CI'V r 031' i
i r 1 fifi #1
Tape Speed , l
4 Adjustment [£2292]: £112 PLAY 2332130053 12382;: See Note-l :
(7-1/2 iys) P P l, ° l
7 7 7 7 1
i i
Tape Speed _ I _ u
5 Adjustment Ifzggtl; 1e PLAY 5 Yfiézzgrf Sta: :7: See Note-l l
(3-3/41ps) 1 P l ' i
._ e . ,7, , evef,iflfl_*,iMM
Playback Level 100 Hz 7-1/2 vx-z 20 xi; 0 11.0 dB 7
6 Adjustment ips ovu tape PLAY ) (TW5314) 4 (0.775V) Qdsyc OFF
7 Playback Level 700 Hz 1-1/2 - PLAY VR-l 5003 l 0 21.0 as
Adjustment ips ovu tape } (TW-5314) 1* (0775V)
,_t, A Ami ,, WT, ,u_,,
VU Meter Sens 700 Hz 7-1/2 VR»1 2 kB 1 i .
8 Adjustment ips ovu tape PLAY (TE-5304) D V i
ri"'* w 7",, , ,+ r ;
9 Recording Level 5201-5: 32 REC VR-l 5 kB 0 11.5 dB ?
J Adjustment 3:25.41 (MS-5023) r (0.715V) 1
x g
SCOTCH #211 TC Wen tape, 1,000 Hz i 1 m4 7m» "000 1 Low NOISE"
10 Response REC to 10 000 i
Ad. I m &10,000 Hz i (TW-5313) Hz f'm , Tape Speed
s m -20 vu recording 4 See F135 1 3-3/4 ips j
i l
Bias Leak L-l 22 mHU) Less than i i
11 Adjustment NM REC (TW-5314) -2o VU i l
, ¥ VAA, 7* ,_ 4L

Chart 2

Note-1 If specified tape speed cannot be obtained, readjust by slightly lowering the DC power supply voltage
adjusted to 24 volt in Step 3.