Revox A77 Service Manual

gm FH1
gm FH2
vio DF1
yel DF2
u.
Tape Drive Control
Commande du mécanisme
Right
Reel
Motor
yel D13
gm D14
blu ( gm/blk) 015
bin ( yel/blk) 016
yel 017
blk CIFJ1
gry DF4
ben CD1
blu CD2
wht DF 3
VIO 0.11
Power Supply
Alimentation
1.077. 540
•
tie red Dll
v•- grn 1)9
• 11— brn
1.077. 370
SwItch
Speakers
on
wht DK2 '
org DK3
grn DG 3
yel D10
yel DOG '1
blk DG,
r Speakers
wht 004 Output
red DG2
blu DO!,
vo• wht D4 gry ij D1
,ht 03 ary Oa D2
e
red 020 # • brO 019
yel 021 blk 018
V
internal Speakers
,1,3
,,,L, „ „,„ D6
14 f f
O
O o
O
e
u_
u.
as
21
Left Reel Motor
F102
1,11.-14‘
blk DS blk 07
'S t ft W
O
•i
7 6
4 5
4
2 3
7 6
110 V
5
150V
250 V
220-250V 0,56,7
110 - 150V 1 A,T
tEil
F 101
7 6
4 5
•
2 3
130V
240V
1.077. 525
955/
ant
art
erh1
C4
110 - 250 V 50/60 4.
2 3
Ola
Q1,1
I 220V
yel
Cd
1.077 725
E
Color Code:
Code des couleurs :
red
org
32 V. , '
*IV
04
Mo
D
22 V
blu
bIk
B40 C 2200
102
2 A,7
* 06 a
07
.* 1500p F
T 104
Ytet
0102 SOT 9201
24 V
B35 C BOO
0101
63Orn4,7
F 102
130 Ve--•
blu
--IF— — 0—
E7 Eel
E 3
gry I welt bib
E8 E 8 EJI
= red — rouge
= orange — orange
3,5 pi
151
1010
•2 1V
000 if
BC IT'
Ct 101
013
D yel
0103
BAt27
0104
IF lé
CE61
820
R103
4102
220
C103 T
3.30F
DF I
ered DM 2
red DB 2
DF
I me du AD 2
W) On ED 2
5,6f
R105 r
P106
2,5
4.7'k
R104
•ed AD I
Im p K ,
ED1 FG8
CFI
Nd
-------
3 3
o
K o
gg gSgg
BEL •, B,C
4 13
iUZri
0151
180-5W
R III
BEL A 14
180-5W
R 112
LB 14
one
R 113
0119
A 0120
BEL C 13
IC
ami ebiZ; ,
')1 Color pm.ssrut
SIC
500r . Gift
3
ISO
FMI
0,1pFC112
47e RI51
bib
FBI
— 1
1500 pF
I 154
..I DM 2
27 VI
0123
obe Solehold
0152
bio
7
7
em 3
g
ue— 1 ft
0124
FG 7 FG9
ye ant
— GM 4
1.077. 370 I s STOP pod. ,
FG 3
org
F04 FG5
Vet grn
*We — — GUM
E14—
0125
FOR
blo
1.5
R 115
470
470-5W
R 116
LEIII 4117
BC 107
0 Ill
5 44
Sto
15 e „<
4119 1›, 4120
Creamy Rh:
Renate Control
BC 140
0 112
Î FG1
Reel Motor, right
014
D15
D bluIgrratehd
016
—rD tvelyel/telld
L
VIO blk y41
OJI DFJ I 017
4,3pF
7 t 152
vn
yel = yellow
gm n = green
blu = blue
vio = violet
Reel Pelotas
OFF
d
•
•
L _
— jaune
— vert
— bleu
— violet
am '
0,47,F
C114
L.
2
6
.:17 .17 21
C),4P,F 4
7
113 4125
NYe e •
1,21(.9 el
9
2
1,47pF
MOM
C115
i4,7
R 123
r -- — —
grn
FH1 FH2
RI55
LOB
F2
tel
Ft
me(grn/telk)
F4
Reel Motor, left
red
FJ 1
brn = brown
gry = gray
blk = black
wht = white
— brun
— gris
— noir
— blanc
F 3
brnly41/1,110
•
LA 101
24 V
30en•
u ;
Designations - Positions C, D, F,G,J, K
Tape Drive 1.077.100
Mécanisme ( 1.077.370, 1.077.525, 1.077.540 )
10.72
Diag. 2

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