Revox A77 Service Manual

5.1. Switch Board and VU- Meter Board
( Diagram No. 1.077.435 & 1.077.480 I
( Removal per 3.12 )
The switch board carries plug-in amplifiers I without output
amplifiers I, control switches and potentiometers for inputs,
balance and volume. The shielded inputs can be plugged
on the switch board ( below, left-hand ). Inputs for playback
amplifiers as well as outputs for OUTPUT and output
amplifiers can also be plugged in I right-hand I.
The equalization slide switch is controled through the
power switch. It has to be readjusted in case of exchange.
This is done with screws F ( fig. 3.12 — 16 ).
The switch terminal contact areas for input selector, before-
and- after tape switch, and playback functions are printed
directly on the board. The rotary switches are encased and
indexed against misorientation. Check fig. 5.1 — 32. for case
and contact configurations. Assembly information is in the
spare parts list.
-0
Inputs CH II Inputs CH I CI . Éi•
Ln
r".
(")
,•••••••••, C •-
,•••••••".111.,
0 0
U
0 . 0 >
e
<,
cnr cer < • cc 2 c.r) +
N CD .7 t• y)
• 0 CD C9 - CD
< < < < <
o, a, . 0 ).
Fig. 5.1-30
Playback
Head
CH II
-o
*
Lamp, end- of- tape switch
Playback
Head
CH I
1:1 E
.c
OUTPUT >
I I
I -- I -I
C
C•I
+
y i
y
Switch
Speakers Off
Fig. 5.1-31
18

Revox A77 Specifications

General

Brand	Revox
Model	A77
Category	Tape Deck
Language	English