Electrical Adjustment - Pioneer CMX-3000 Service Manual

CMX-3000, CU-V163

6.4 ELECTRICAL ADJUSTMENT

1
VCO Free-running Adjustment
• Power ON
• None disc
START
MAIN ASSY
IC1415 - pin 1 (PLAYER A)
IC1414 - pin 1 (PLAYER B) GND
56
MAIN ASSY
VC1001 (PLAYER A)
VC1002 (PLAYER B)
Player
Probe (10:1)
Objective : To optimize the VCO free-running frequency
When not properly adjusted :
• Master Tempo does not function normally
• The output does not appear in indication and occasion
when turned a Tempo adjustment into + side.
DC voltage
2.5±0.2V
CH1 CH2
(X) (Y)
Oscilloscope
V: 50mV/div.
H: 10msec/div.
DC mode