Bang Olufsen Beomaster 2800 4600 Service Manual
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Extracted text from Bang Olufsen Beomaster 2800 4600 Service Manual (Ocr-read)
Page 2
Bang&0|ufsen
INTRODUCHON
CONTENTS
Beocenter models 2800 and 4600, types 2630 and 2631, are combined sets in
which the radio section and record player are identical
The radio receiver circuits are identical with those of the Beomaster 2200, type
1601, and reference is therefore made to the functional description of that
receiver.
SECTION
Technical Data ......................................... l
Disassembly, service tips .................................. 2
Electrical description ..................................... 3
Adjustments, gramophone ................................. 4
Mechanical function and adjustments, tape recorder ................. 5
Electrical adjustments, tape recorder .......................... 6
Adjustments, radio part ................................... 7
Parts list ............................................. 8
Electrical parts list ................................ - ...... 9
Transistor, IC, and diode list ................................ 10
PC boards and diagrams ...................... ' ............. l 1
Page 24
Bang&0lufsen
For Service Manuals Contact
MAURlTRON TECHNICAL SERVICES
8 Cherry Tree Rd, Chinnor
Oxon 0X9 4OY
Tel:- 01844-351694 Fax:- 01
Emil:- emhmummm
amnwnw
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
27
28
29
30
31
32
33
34
35
36
37
38
39
4o
41
42
43
44
45
46
2072919
2380003
0335149
2724050
8002319
8002318
2548134
2548146
3302110
Threaded pin
Square nut M3
Spring
Wheel -VcQ.~~: ,
PC unit
PC 4
Bracket
Bracket
Screen, TUNING
24-94018 Wheel 17514 c l}.
3302274
3190066
3302109
3015079
2568479
3456086
087
68480
Screen, VOLUME
Pointer glass
Screen
Slide
Front moulding, Beocenter
4600
End piece, righjgxsfifc
End piece,'left FINE?
Front moulding, Beocenter
2000
31-5-2095 Screen, TREBLE 55 12-45
3452696
2640034
2042244
2622052
3152063
3302275
2038247
3322050
7212021
2548141
2622157
2380092
2038007
3190076
3450090
3015032
3164312
3164313
2568481
3168079
2013213
2039010
2622052
8002336
2548143
2548134
2622245
2624031
2542450
2013062
2013024
2013024
2622052
2775593
2775594
2775595
2775596
2775597
2775598
2775599
2775600
2775601
2775602
2775603
2775604
2775605
2775605
8002301
2548111
Screen, BASS .3: 511.44.
Clamp
Screw
Fibre washer
Holder
Screen, LEVEL 21!
Screw \7 .
Window
Jack socket
Bracket
Washer
Nut
Screw
Pointer glass _
Screen. 5, 5 10-
Slide
Dust cover, assembled,
Beocenter 4600
Dust cover, assembled,
Beocenter 2800
Cover
Operating panel
Screw
Screw
Fibre washer
PC 2
Bracket, left
Bracket, right
Mica sheet TO-126
Spring washer T0-126
Bracket
Screw
Screw
Screw
Fibre washer
Button, ad 1 /
Button, fl 2 /
Button ST-AFC 5 °
Button, MONO °
Button, TAPE I
Bmton, PHONO 9 3
Button, LW 4\o
Button,MW ¢\°
Button, FM 81°~
Button,Pl NO
Button, P2 9°
Button, ¢|°
Button, P4 /
Button, OFF .l\\.- .
PC 6
Bracket
3.152099- Screen, BALANCE 5751:. 1-
3015033 Slide %
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
7s
76
77
78
79
so
81
82
83
84
85
86
87
as
89
90
91
92
93
94
95
96
97% Wheel ~20; 4-033
98
99
100
101
102
103
104
105
106
107'
108
8-2
2622245 Mica sheet T0-126
(1 piece)
2622248 Mica sheet T0-220
(5 pcs.)
2624032 Spring washer T02 20
2938127 Bushing TO-220
2039010 Screw
3191096 Dial, Beocenter 4600
3191097 Dial, Beocenter 2800
2038216 Screw
8004164 PC 8
2038208 Screw
8002286 PC 3
2380011 Nut M3
2816150 Bronze spring
3030037 Hinge
3162120 Cover, MIC --
2938081 Rubber bushing
2070701 Threaded pin
3412481 Cabinet set, teak
3412483 Cabinet set, rosewood
2042205 Screw
2038007 Screw
W Cover Shad-3+
2034042 Screw
2038235 Screw
3152100 Holder
2775516 Button,0
2775517 Button,M
6275325 Wire bundle with plug
7500129 Contact pin
2038216 Screw
2542456 Bracket
2622265 Wash
2038066 Screw
3164066 Cover
7500033 Fuse holder
3120194 Holder _ ,
7401001 Mains switch mm 9:
0534104 Screen
2038201 Screw
3470078 Bracket
2038216 Screw
2514022 Clamp
2038201 Screw
2548147 Bracket
2013024 Screw
2038247 Screw
2643014 Clamp
2013200 Screw
8004171 PC 5
7210129 Socket/housing
7500114 Contact pin (5 pcs.)
7500129 Contact pin (2 pcs.)
7211049 Socket S-contact mvceoPHr-Jé
7211042 Socket PM
7211043 Socket AM
2641062 Locking plate
7211050 Socket 75 ohms AafltA»
7211047 Socket 2-contact
2038201 Screw
2812043 Spring .11 More
2395031 Spire v )
2036203 Screw
2542471 Bracket
2013213 Screw
2042240 Screw
2938081 Rubber bushing
2622024 Washer
2548126 Bracket
2042205 Screw
2548129 Bracket
2542429 Bracket
Page 31
8-9
2726113 Turntable
2732037 Drive belt
3458172 Top plate
3320048 Holder
2700020 Belt for adjustment
5390014 Potentiometer
6273763 Wires with socket
7 2042209 Screw AM 4 x 10 DIN 84
8 2775575 Square button
9 2640031 Clamp
10 2354042 Gear level
11 2570051 Switch arm
12 3152236 Holder
13 2039905 Screw AM 3 x 12 DIN 7985
14 2514028 Hook
@mwa-
Page 8-9, correction to pos. 25
2515012
2815007
2815012
Bang&0|ufsen
2039905 Screw AM 3 x 12 DIN 7985
15
16
17
18
19
20
21
22
23
24
25
26
2622272 Washer
2938137 Rubber bushing
2930074 Bushing
8400093 Motor
2722022 Pulley
2850084 Pickup arm complete
8954390 Pickup MMC 3000
3302230 Cap for pickup
2046910 Transport screw
2072707 Threaded pin AM 3 x 6
2938100 Bushing
2622228 Washer
2815007 Leaf spring
2640032 Clamp
4-0,
1.3.0
Page 35
8-13
us
PARTS NOT SHOWN
115 3162093 Cover
116 3342034 Counterweight
117 2070400 Threaded pin M 2 x 3
118 2905071 Pivot bearing
119 2834056 Shaft
120 7200037 Socket with wires
121 2816143 Chassis spring
122 2033007 Screw
123 2380068 Nut
124
125
126
127
128
129
130
131
2034913
2812072
3190064
3342033
3151137
3152207
2938096
2072097
12!.
117
II!
129
Screw
Spring
Pointer
Counterweight
Holder for shaft
Holder for arm
Bushing
Lifting screw
6270190 Wire with plug, PHONO
signa1
7210149 Socket/housing
Zeontact (motor volt
age)
7500114 Contact pin
6271101 Mains lead with euro-plug
7220148 Phono-plug(Aeria1/Front
end)
3532124 Diagramme, Beocemer 4600
3532123 Diagramme, Beocemer 2800
0585027 Rubber foot
3454134 Bottom plate, Beocenter
2800
3391480 Outer carton, Beocenter
4600
3391481 Insert, Beocenter 4600
3391482 Insert, turntable,Beocenter
4600
3397274 Foam packing, bottom, Beo-
center 4600
3397275 Foam packing, cover, Beo-
center 4600
3391493 Outer carton, Beocenrer
2800
3397286 Foam packing, right, Beo-
center 2800
3397287
3397288
Foam packing, left, Beocen-
ter 2800
Foam packing, cover, Beo-
eenter 2800
me
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