Service Model 89038
Comoonent Coordinates
-
COMP
-
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
TI
PI
P2
P11
2
3
4
5
6
12
17
19
22
23
24
Rl
-
-
NOTES
1.
*
Asterisk indicates factory selected values
-
x.y
-
1
2
2
1
2
2
2
1
2
1
3
3
2
2
1
2
2
3
1
1
1
1
1
2
2
1
1
2
2
2
3
3
2
-
-
x,y
__
A2
A2
02
A2
A2
03
A2
02
A2
A2
A2
02
Ai
A2
Ai
A2
A1
A1
A2
A2
A2
A2
02
81
A2
A2
02
A2
A2
03
A2
A2
A2
A2
02
02
02
02
02
A2
c2
03
A2
03
03
A2
02
03
02
03
02
03
03
A2
A2
A2
02
03
A2
A2
A2
02
02
02
02
A2
02
A1
AI
02
A2
A3
A1
A2
A1
A2
A1
A1
A1
A1
A2
A1
81
A1
03
to Section
kHz,
with 1
08903-60128
tector. pin
A4 assembl
5
under
11 SPCL and
is
lo
1 of the
wi
I I
2.
These components are not normally loaded. Refe
VOLTMETER ADJUSTMENTS.
3.
All voltages shown are for 1-3 Vrms input at 1
3.1
SPCL.
4.
If the A4 OUTPUT AMPLIFIER/VOLTMETER ASSEMBLY
be used in an 8903A AUDIO ANALYZER as an
RMS
d
XA4A connector must be grounded. Otherwise, th
function as an AVG detector.
lP5
?
lP8
?
METER
OC
CALIBRATION
A403
I
5-7
TOP VIEW
A4Q 1
~
Q2
AVG.
RHS
AVG. ZERO
RYS
ZERO
SCALE SCALE
TP2
ADJUST ADJUST
TP4
A4Q4
BO
0.
206
I
000000000000000
<El
q
L.
n
I
I
I
:
.I
U
U
1
15
I
<
.,
A
E
A4
A 8
C
D
555
Output
Ampllflerl
Voltmeter-
OUtDUt
Amollfler
Schematic General Information
PI0
A4,
SEE
REVERSE
A12
SIDE
Figure 88-116. SERVICE SHEET 6 INFORMATION Component Locator
88-116
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