Revox A77 Service Manual

INDEX
QTY
PART NAME
ORDER NUMBER
H
Motor, Capstan
01
1 Motor, capstan, assembled
1.077.200
02 a"
1
Rotor
1.07/.200 - 06
02 V
Rotor
1.021.103
03 a* 1
Shaft, capstan
1.077.200 - 09
03 V
Shaft, capstan
1.077.200 - 01
04
2
Cap, plastic
1.077.220 - 02
05
2
Ring, felt
1.077.220 - 01
06
1
Bearing, ball
41. 99.0101
07
2
Ring, retaining, internal 24. 16.4220
08
2
Spring, belleville
37. 02.0106
09 a ' 1
Clip, shaft 24. 99.0112
09 V
Clip, shaft 22. 16.6104
10 a* 1
Device, no- turn 1.077.200 - 08
10 b.
Device, no- turn
1.077.200 - 05
11
1
Shield 1.077.200 - 03
12
2
Screvv ( M3 x 4) 21. 01.0352
13
1
Head, pick-up 1.077.240
14
1
Washer, antivibration 1.077.200 - 04
15
2
Screw ( M3 x 6)
21. 99.0117
16
2
Washer, plain 23. 01.1032
17
4
Screw ( M4 x 30) 21. 01.0464
18
1
Plate, screening 1.077.100 - 22
*Suffix a or b denotes matching shaft, rotor
and no- turn device
Bend down lip when using
new capstan shaft and no- turn
decive 10a on old rotors. --
— -- _
OM
H
17
17
04
05
18
14
13
, 16
15
fi=e
12
11
10 a
c7?
degke'ts.
117 né e
07
06
08
08
03 a
(03 b
PL 9

Revox A77 Specifications

General

Wow and Flutter	0.08% (7 1⁄2 ips)
Frequency Response	30Hz to 20kHz (7 1⁄2 ips)
Signal to Noise Ratio	60dB
Type	Reel-to-Reel Tape Deck
Track System	4-track, 2-channel stereo/monaural
Reel Size	Up to 10.5 inch reel
Motor	2 x reel, 1 x capstan
Inputs	Mic, Line
Outputs	Line
Tape Speed	3 3⁄4 and 7 1⁄2 ips