Akai 4000DS Mk-II Service Manual

HEAD BLOCK
Ref.
No.
1-1 x
1-2
1-3
1-4
1-5
1-6
1-7
1-8
1-9
10
1 1
12
13
1 4x
15
16
17
18
19
20x
21
22
23
24
25
26
27
1-37
1-38
1-39
1-40
1-41
Parts No.
BH480363
HZ490296
HZ274162
ZW27 3802
ZW27 375 6
SZ247015
ZW417025
MH312827
ZW417025
HZ480420
ZW464714
ZG206144
HP375I31
HZ393974
ZW477 876
HZ480431
ZW464714
ZG206144
HR475446
HZ393974
ZW477876
HZ480442
ZW323728
HE384693
ZW477876
HZ31289S
ES257668
ZVV 27372 3
ZW273734
EJ2551 1 5
EO390622
EJ297843
EJ276963
ZW417025
HZ480475
ZW413223
HL223503
ZG312928
ZW336846
HL312941
ZW480622
Description
Schfmatif
No.
Head Block Comp. LE-1
LD Head Base B (new),
w/metal I.D-ll
Tape Guide #1 4TR-5
M3 Toothed Lock Washer
M3 Nut
Head Cover Prop LU-10
Screw, binding head 3x8,
w/washer
SW. Prop (new LD) UM3
Screw, binding head 3x8,
w/washer
PB. Angle Base I.E-000)
Screw, round head 3x12
Angle Adjust Spring HU-16
REC./PB. HEAD P4-150
l-MK Head Terminal Plate RC-89
Screw, pan head 2x3
Rec. Angle Table I.E-0002
Screw, round head 3x12
Angle Adjust Spring RD-16
REC. HEAD P41 54
l-M K Head Terminal Plate RC-89
Screw, pan head 2x3
Erase Head Base I.F.-0003
Screw, binding head 3x5
ERASE HEAD E4-200
Screw, pan head 2x3
Switch Table (new LD) UM2
Rotary Switch
ESR-E263LI4AS 25 6-3
M2 Spring Washer
M2 Nut
Lug Plate VB2L2 33-4-3
Ferri Inductor FL9H
220mH(K) 23-1-4
4-P Plug, w/cap 42-1-3
T type 4-P Plug 42-1-16
Screw, binding head 3x8,
w/washer
Head Shield EE 0004
Screw, binding head 3x5,
w/washer
Shift Lever B, w/shaft A M9-3
Shifter Spring I.D-19
Washer (SPC)D4.1 x7xl.2t
Shift Lever, w/pin LD-15
Screw, oval countersunk
head 2.3x6
HU-16
RC 89
I.E-0002
RD-16
RC-89
I.E-0003
1 . 1)-12
25 6-3
Q’ty
i
1
3
3
3
2
2
1
1
1
3
3
1
1
2
1
3
3
1
1
2
1
2
1
2
1
1
2
2
1
2
1
1
1
1
2
2
1
2
1
2
1-42 HL223536 Shift Lever C, w/pin M9-5 1
1-43 ZW413155 Screw, binding head 3x6 1
1-44 ZW323728 Screw, binding head 3x5 2
1-45 ZW273778 M3 Earth Lug I
When ordering parts, please describe Parts Number, Serial Number, and Model Number in detail.

Akai 4000DS Mk-II Specifications

General

Type	Reel to Reel
Track System	4-track, 2-channel, stereo/monaural system
Signal to Noise Ratio	50dB
Reel Size	Up to 7 inch reel
Total Harmonic Distortion	1.5%
Output	0.775V (line)
Tape Speed	3.75 & 7.5 ips
Heads	1 x erase
Input Sensitivity	50mV (line)
Semiconductors	6 x Transistors
Inputs	Line
Outputs	Line