Marantz TT-6000 - Switch Logic Circuit Board

VOLTAGE MEASUREMENTS
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MOTOR CONTROL BOARD i
SWITCH LOGIC BOARD
(o3 fo tea pe tee ice er |
| be aad a le cow |
u “6.0V_ 6.02V 373v. | ooav. | assy |
rise fo fame fob of
: s0v | 5.0V <<
Popa |
cape
wed
Voltages measured with tone arm removed from rest
and platter @ 33RPM mode.
Reference is ground.
MOTOR CONTROL TRANSISTORS
COMPONENT |
EMITTER 1.0V Poe G6Mer ABN
0.6V O2V
gc AQ
5.46 V
ope dens USeSA NNO Gee AAAS CAESAREA ANEURIN
| 4.93V | 001V. | °9.72V
i3v. | 67N 5.6
‘BASE
? ;
COLLECTOA
1,75)
49V
|
62V
|.
48V.
|
1175Vv
1.4
+
74V
oe
11.
75V
a
Me
at
o
-49V
474V
4
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NONAA
SWITCH LOGIC CIRCUIT BOARD