Marantz 3800 - Page 39

NOTES, ALL D.C. VOLTAGES ARE MEASURED
UNLESS SPECIFIED: U501, U502 U503, U504
NE545B NE5458
1. WITHIN + 10% TOLERANCE,
2.
WITH
120
VOLTS
REGULATED
INPUT.
Pin
1
Pin
1
DOLBY
-
TAPE
MONITOR
BOARD,
3
WITH
RESPECT
TO
CHASSIS
GROUND.
Pin
2
Pin
2
FOIL
PATTERN,
CIRCUIT
SIDE
Pin 3 Pin 3 no connection Pin 11 11.7V
4. WITH CONTROLS SET AT MIDRANGE, Pin 4 Pin 4 10.0V Pin 12 63V
TONE
SWITCH
ON.
Pin
5
Pin
5
9.7V
Pin
13
.63V
Pin6 Pin 6 10.0V Pin 14 .53V
PPLIED, ;
2 ENS Sens Pin7 Pin 7 9.3V Pin 15 .53V
INPUT
JACK
SHORTED.
Pin
8
Pin
8
10.9V
Pin
16
17.3V
P510=P512=-P5
ee os
= °
GOGd
(eeeesee,
=o
be
UT
eras
ae
,
)
=
5)\
|
al
;
ffs
>
,
:
Se
ee
:
2
;
\|
Ge
0
y
100
107
(106)
104
(105) 1
(62) 1
64
99
61
+17.3V
REG
Figure 36 Dolby-Tape Monitor Board, Circuit Side
3-8