Pioneer XC-IS21MD Service Manual page 32

XC-IS21MD
Waveforms
Note: The encircled numbers denote measuring point in the schematic diagram and the PCB connection diagram.
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CORE MAIN ASSY
IC101-pin35 (ADIPO)
1
MODE: PLAY
DISC: GGF1328 (MMD–212)
DC500mV/div., 10 µSec/div.
IC102-pin50 (EFMO)
4
MODE: REC
DISC: GGF1328 (MMD–212)
DC1V/div., 0.2 µSec/div.
IC102-pin77 (TE MON)
6
MODE: PLAY
DISC: TGTS1 or MMD–110
DC500mV/div., 2mSec/div.
32
IC101-pin30 (WBO)
2
MODE: PLAY
DISC: GGF1328 (MMD–212)
DC1V/div., 10 µSec/div.
–– GND
IC102-pin75 (FE MON)
5
MODE: PLAY
DISC: TGTS1 or MMD–110
DC100mV/div., 2mSec/div.
–– GND
Measurement Method
39 kΩ
TE MON
–– GND
REFO
(MD Mechanism Assy TP)
3
–– GND
Measurement Method
FE MON
–– GND
7
To Oscilloscope
820pF
IC102-pin1 (EFM MON)
MODE: PLAY
DISC: TGTS1 or MMD–110
DC500mV/div., 0.5mSec/div.
–– GND
39 kΩ
To Oscilloscope
820pF
REFO
(MD Mechanism Assy TP)
IC102-pin54 (TES01)
MODE: STOP
DC2V/div., 10 µSec/div.
–– GND