Marantz 3800 - Page 38

c E B
= ees = ee
E , Q201,Q202.78 24-158
NOTES, ALL D.C. VOLTAGES ARE MEASURED eaace CagniAN searaare Oc
UNLESS SPECIFIED: a203,0204 .78 = .25——-17.0
\O8, a209,0210 2 42 -17.0
1. WITHIN 2 10% TOLERANCE. O Q215,0216 16.6 15.9 “29
a219 173° 479-173
2. WITH 120 VOLTS REGULATED INPUT. Q221 -23.5 -29.0
+24.3
3. WITH RESPECT TO CHASSIS GROUND. r 2 =
E B c
4, WITH CONTROLS SET AT MIDRANGE, CASE -29.0V | on O08 pe aS ee
i i 2 2 “17, “16. -0.
TONE SWITCH ON. Pins 1, 13 -0.01V Pint 17.3V F
Pins 2, 12 15.4V Pin 2 -4.4V Se Q211,Q212 -164 -158 0.
5. WITH NO SIGNAL APPLIED, Pins 3,11 13.8V Pin3 -21.5V Q213, 0214 -2.9 -2.2 159
INPUT JACK SHORTED. Pins 4, 10 13.8V Pin 4 17.3V Pin 4 ov Q217,Q218 -166 -159 29
Pins 5,9 -0.01V Pin 5 — noconnection Pin 5 29.0V Q220 -23.5
Pins 6, 8 -0.01V Pin 6 ov Piné 17.3V
Pin? -17.3V Pin7 17.3V Pin? ov
Pin 14 17.3V Pin 8 -0.56V Pin 8 no connection
Ping Ov
SARE ARE ES ET
torneo oa
: commen conerae
oA mem
-
sts ESS cae ee
é
ny ; es
3 SOE
ea
Ecaencaumomaoraseall
Figure 3-5 Preamplifier Board Diagram, Circuit Side
3-7