Akai 4000DS Mk-II Service Manual

SUPPLY/TAKE-UP REEL TABLE BLOCK
Ref.
No.
Parts No.
Description
Schematic
No.
Q’ty
2-1 x
BR205020 Supply Reel Table Block
#5 Comp.
I.E. U>
l
2-2x BR205244
Take-up Reel Table Block
#7 Comp.
I.K-I. 1.1) l
2-3 MT256I40
Reel Tabic C, w/shaft C
900-215 2
2-4x MT2S21 12
Friction Cloth B
900-225
2
2-5 MR2S1460 Rewind Pulley
900-222
1
2-6 MT222 366 Rubber Ring
900-234
1
2-7
ZG227S31 Spring Gl (L)
900-229
1
2-8
ZW260054 Washer (SUP)D6.1 x 10x0.25t
2
2-9x ZW260065
Washer (SUP)D6.1 x 10x0.35t
2
2-10 MT25S870
Reel Table Thrust Pin 900-237
2
2-1 1 MR 252066
Take-up Roller C
900-220
1
2-1 2x
MT252101 Friction Cloth A
900-224
1
2-1 3x
ZW260098 Washer (SUP)D6.1 x 1 OxO.St 2
2-14
MT255971
Reel Table Spring Plate A
900-227 1
2-15
ZW260201
Washer (Nylon)D6.2x 1 3x 1 1
2
216
ZW231693
Claw Thrust Washer
(SUP)0.25t 900 235 2
2-17 ZW260201
Washer (Nylon)D6.2x 1 3x 1 1
2
2-18 MT25S870
Reel Table Thrust Pin
900-237
2
2-19 ZW260076
Washer (Nylon)D6.1 x 10x0.51
2
2-20 ZW26006S
Washer (SUP)D6.1 x 10x0.351
4
2-21 MT256228
Reel Metal MT. Parts,
w/metal B 900 231
1
2-22 ZW260245
Washer (Nylon)D7.9x 1 3x 11
1
2-23
MT25S993
Reel Table Spring Plate C MS-207
1
2-24
ZW260065
Washer (SUP)D6.1 x 10x0.351
1
2-25
ZW270000
Retaining Pin D4
900-257 1
2-26 MR256083
Reel Table Pulley
900-239
1
2-27 ZW434171
Set Screw, hexagon socket
4x7(cup) 1
2-28 MR252044
Take-up Roller A
900 218 1
2-29x ZG227520
Spring G1 (R) 900-229 1
2-30 MR2S2055
Take-up Roller B
900-219
1
2-3 1 x
MT252123 Friction Cloth C
900-226
1
2-32x
MT255982
Reel Table Spring Plate B 900-228 1
2-33x MT256228
Reel Metal NT. Parts,
w/metal A 90 0 2 31
1
2-34
ZW26002 1
Washer (SUP)D6.I xl 0x0.1 3t
1
2-35
ZW3I2693 Ring 4 6-1-4
1
2-36
ZG227496 Spring F3 (R)
900-238
1
2-37
ZW260201
Washer (Nylon)D6.2xl3xIt
2
2-38
MT228S87
Set Sleeve
'18-208
1
2-39 ZW434I60 Set Screw, hexagon
socket 3x3(cup)
1
2-40 MT235596 Vinyl Tube IS
1
2-4 1
MT48097 1
Reel Table Disk
1. K-2001 2
2-42
ZW46I305
Screw, countersunk head
3x5(black) 2
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