Revox A77 Service Manual

.Ab
R323
blu AB2
grn AB1 —
win
AB3
red
• " 4- 3UU
11310'
P301
P302
I S1.
yel AH12
grn AG2
red 406
blu AG4
gry 4131
brn AG5
yel AG 3
red AEI
blk AB15
— oro 4914
Neht AB6''
red AB"?
— org AB4
gry 4115
'fflige
red A01
Switch Board
Plaquette des commutateurs
Playback
wh' red Head
red
CH II
ben Playbeck
red ben Head
wht CHI
brn AG -91
AK-2 1
vio AG8 I
1
org AK3
grn AG7
1
4spri1 .1= H1
OUTPUT Switch
Speakers Off
1.077. 435
red DB2 — ainvor ; z
vio DB1
1 :?.? 53 ea, red
R359 arrelptli
R36C a,lp blu =
D354 - e
blu AB2
red
AB3
wht
gen AB1
gry AB5
blk AB15
yel AB8
La
VU - Meter Board
• . 1
wht ABB
org AM
btu AB13
Pan
ern AB11
red AB7
Yto AB14
— ben AB12
1.077. 480
Plaquette des VU - mètres
Color Code:
Code des couleurs :
red
org
yel
gmn
blu
vio
brn
gry
blk
wht
= red — rouge
= orange — orange
= yellow
= green
• blue
▪ violet
• brown
• gray
= black
= white
jaune
vert
bleu
violet
brun
gris
noir
blanc
560
R301
ERASE
2 track
4 tnedi
HEAD
101
H 102
RECORD HEAD
2 Nock H 103
4 hoe H 10 4
PLAY HEAD
2 trait H 105
4 Nock H 106
TI
OUTPUT CH l
3
7351
nra
RECORD
CHAMO EL 1
9351 R352
•
2 -
e
• •
RECORD
CHANNEL!!
;
e
•
•
2.7K 2,7K
R353 R35I
id
AA116 AA116
D 351 0352
PHONES
560
9302
390
R303
21
P 301
SI
47K 6304
4 •A•N 4
11
2500
P305
4
5
1.0„,C ior
—AF-4-cm
r=1
6
7
,
0 1 10
o
o : iz
1 13
1= 1
L_ _ J
47
R305
47119306
3
4
5
-4 , S2
9
I=1 7
e
_4 4=i , 9
6.80
9307
3,3 ye
C 304
25K . log
P302
L Volume j
AA1 e : 1
6,8K
R30
3,3e
C305
o
10
10
11
12
390
g.
2
71/2" 3 3/4"
VT
6309 < 9310
250 2F
C 306
•
1
1 0.-1JLA 302 LA 303 j I.
LA 301
B -1
im pvio DI31
330
R3I1
3
C=I 4
= 5
1
12
— 14=1 -1-13
4,7KR3SS 4,7K R
56
4,7 KR 357
4,7KR358
Y.‘
•
r=1
r=1
3
4
6
C=1 3
1=1 4
1=I 5
= 6
o
11 -1=1
-- 1r 4=1 10
1
1300oF
few
C 352
2,7 K
R359
A4116
0353
2.76
R 360
AA 116
0 354
-- 11"8 -i ---- 17 •
2
3
5
6
39993
4¡ 330
R32
— 12
25K. en
ore P303 P304
442
STEREO of
S3. S4
AB 3
2509F
C 307
/MC CHI
r.d 1
e
A81
5K P3061
1
14 9
M1C CH I
5 3
o
56 P307 1
l099 1
o
il
Viewed from Switch Side A
Vue côté commutateurs
—
Designations - Positions A,B, H
VU - Meter Board
Plaquette des VU- mètres
Switch Board
Plaquette des commutateurs
1.077.480
1.077.435
Diag. 3

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