Pioneer PDP-502MX Service Manual page 36

PDP-502MX, PDP-502MXE
Waveforms of X DRIVE Assy, Y DRIVE Assy and SCAN MODULE
Sustained waveform
CH1: P.SUS TP3716 (P.SUS) – TP3713 (SUS.GND)
V: 50V/div., H: 500nsec/div.
CH2: YSUS-B TP3703 (YSUS-B) – TP3609 (D.GND)
V: 10V/div., H: 500nsec/div.
CH3: YSUS-U TP3704 (YSUS_U) – TP3609 (D.GND)
V: 10V/div., H: 500nsec/div.
CH4: YSUS-D TP3705 (YSUS_D) – TP3609 (D.GND)
V: 10V/div., H: 500nsec/div.
CH5: YSUS-G TP3706 (YSUS-G) – TP3609 (D.GND)
V: 10V/div., H: 500nsec/div.
CH1
CH2
CH3
CH4
CH5
Sustained waveform (1 field)
CH1: X drive waveform
K3402 (P. SUS) – K3404 (SUS. GND)
V: 50V/div., H: 2msec/div.
CH2: Y drive waveform
TP3716 (P. SUS) – TP3713 (SUS. GND)
V: 50V/div., H: 2msec/div.
CH1
CH2
Sustained waveform
(1 field; enlarged)
CH1: X drive waveform
K3402 (P. SUS) – K3404 (SUS. GND)
V: 50V/div., H: 2µsec/div.
CH2: Y drive waveform
TP3716 (P. SUS) – TP3713 (SUS. GND)
V: 50V/div., H: 2µsec/div
CH1
CH2
36
Sustained waveform (1st sub-field)
CH1: X drive waveform
K3402 (P. SUS) – K3404 (SUS. GND)
V: 50V/div., H: 200µsec/div.
CH2: Y drive waveform
TP3716 (P.SUS) – TP3713 (SUS.GND)
V: 50V/div., H: 200µsec/div.
Reset Pulse
Portion
CH1
–GND
CH2
–GND
–GND
–GND
–GND
Sustained waveform
(reset pulse portion; enlarged)
CH1: X drive waveform
K3402 (P. SUS) – K3404 (SUS. GND)
V: 50V/div., H: 20µsec/div.
CH2: Y drive waveform
TP3716 (P. SUS) – TP3713 (SUS. GND)
V: 50V/div., H: 20µsec/div.
CH1
–GND
CH2
–GND
Sustained waveform
(portion where sustaining was started; enlarged)
CH1: X drive waveform
K3402 (P. SUS) – K3404 (SUS. GND)
V : 50V/div., H : 5µsec/div.
CH2: Y drive waveform
TP3716 (P. SUS) – TP3713 (SUS. GND)
V : 50V/div., H : 5µsec/div.
CH1
–GND
CH2
–GND
Sustained waveform
(portion where sustaining was ended; enlarged)
CH1: X drive waveform
K3402 (P. SUS) – K3404 (SUS. GND)
V: 50V/div., H: 5µsec/div.
CH2: Y drive waveform
TP3716 (P. SUS) – TP3713 (SUS. GND)
V: 50V/div., H: 5µsec/div.
Sustained
Portion
CH1
–GND
CH2
–GND
Control waveforms
CH1: Y drive waveform
TP3716 (P.SUS) – TP3713 (SUS.GND)
V: 100V/div., H: 2msec/div.
CH2: CP_MSK
IC3601 Pin17 (CP_MSK) – TP3609 (D.GND)
V: 10V/div., H: 2msec/div.
CH3: SUS_MSK
IC3601 Pin12 (YSUS_MSK) – TP3609 (D.GND)
V: 10V/div., H: 2msec/div.
CH4: OFS TP3707 (OFS) – TP3609 (D.GND)
V: 10V/div., H: 2msec/div.
CH1
–GND
CH2
–GND CH3
CH4
Control waveforms
(1 sub-field; enlarged)
CH1: Y drive waveform
TP3716 (P.SUS) – TP3713 (SUS.GND)
V: 50V/div., H: 200µsec/div.
CH2: CP_MSK
IC3601 Pin17 (CP_MSK) – TP3609 (D.GND)
V: 10V/div., H: 200µsec/div.
CH3: SUS_MSK
IC3601 Pin12 (YSUS_MSK) – TP3609 (D.GND)
V: 10V/div., H: 200µsec/div.
CH4: OFS TP3707 (OFS) – TP3609 (D.GND)
V: 10V/div., H: 200µsec/div.
–GND
CH1
CH2
–GND
CH3
CH4
–GND
–GND
for additional pulses (1 field)
–GND
–GND
–GND
–GND
for additional pulses
–GND
–GND
–GND
–GND