Marantz SA12 - Disc Motor; Radial

32
Disc Motor:
Before switching on the disc motor, check the following test
points:
Switch the Discmotor on/off with next commands:
Check the following signals when discmotor has been
switched on:
Switch the discmotor off.
Radial
Swith the radial control on/off with the following commands:
Check the following signals:
Check for pulse density signal RA at testpoint F227
Name Testpoint Value
Stby F357 high
Stby-out F355 LOW
Moto1 F361 3V±0.3
Ref. # Command Name Remark
606 BeDiscmotorOn Discmotor on
607 BeDiscmotorOff Discmotor off
Name Pin nr. Frequency
Stby F357 low
Stby-out F355 HIGH
Moto1 F361 2V±0.5V
A3 F350 see oscillo-
gram
A2 F352 see oscillo-
gram
A1 F353 see oscillo-
gram
T1 F280 see oscillogram
T2 No testpoint present see oscillogram
T3 F371 see oscillogram
PM3394B
ch1
CH1 5.00 V~ MTB20.0ms ch1+
1
A1-A2-A3
CL 06532152_042.eps
051200
VH F365 3V±0.5V
H1+ F354 see oscillogram
H1- F359 see oscillogram
H2+ F364 see oscillogram
H2- F366 see oscillogram
H3+ F367 see oscillogram
H3- F370 see oscillogram
Ref. # Command Name Remark
608 BeRadialOn Radial control on
609 BeRadialOff Radial control off
Name Testpoint Value
Rad - F128 4.3V±0.5V
Rad + F121 4.3V±0.5V
PM3394B
ch1
CH1 2.00 V~ MTB2.00ms ch1+
1
T1-T2-T3
CL 06532152_043.eps
051200
PM3394B
ch1
CH1 200mV~ MTB2.00ms ch1+
1
H1-H2-H3
CL 06532152_044.eps
051200