Pioneer PDP-505HD Service Manual page 37

SCAN IC
control waveform (1 sub-field)
CH1: Y drive waveform
TP3716 (P.SUS) – TP3713 (SUS.GND)
V: 50V/div., H: 200µsec/div.
CH2: SI TP3604 (SI) – TP3609 (D.GND)
CH3: CLK TP3601 (CLK) – TP3609 (D.GND)
CH4: LBLK TP3603 (LBLK) – TP3609 (D.GND)
V: 10V/div., H: 200µsec/div.
CH1
CH2
CH3
CH4
SCAN IC
control waveforms (enlarged)
CH1: Y drive waveform
TP3716 (P.SUS) – TP3713 (SUS.GND)
V: 50V/div., H: 5µsec/div.
CH2: SI TP3604 (SI) – TP3609 (D.GND)
CH3: CLK TP3601 (CLK) – TP3609 (D.GND)
CH4: LBLK TP3603 (LBLK) – TP3609 (D.GND)
V: 10V/div., H: 5µsec/div.
CH1
CH2
CH3
CH4
Waveforms of CABLE Assy
Address resonant output waveform
(TP 1001) and midpoint voltage (C1001)
(VIDEO input, black display)
1 Field rate
V: 2V/div H: 2msec/div
2 Resonant pulse rate
V: 2V/div H: 500nsec/div
1
2
Y-drive sustained waveforms
(for 1 field)
CH1: SCAN output waveform
SCAN IC output – TP3713 (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
–GND
CH2
–GND
–GND
–GND
Sustained waveforms
(selected pulse portions of waveforms; enlarged)
CH1: SCAN output waveform
SCAN output – TP3713 (SUS. GND)
V: 50V/div., H: 10µsec/div.
CH2: Y drive waveform
TP3716 (P.SUS) – TP3713 (SUS.GND)
V: 50V/div., H: 10µsec/div.
CH1
–GND
–GND
CH2
–GND
–GND
Address resonant control signal waveform
(VIDEO input, black display; resonant pulse rate)
CH1: ADR-U (IC1007 Pin 2) V : 2V/div H : 500nsec/div
CH2: ADR-B (IC1007 Pin 4) V : 2V/div H : 500nsec/div
CH3: ADR-D (IC1010 Pin 1) V : 2V/div H : 500nsec/div
CH4: ADR-G (IC1009 Pin 1) V : 2V/div H : 500nsec/div
CH1
CH2
–GND
CH3
CH4
–GND
Sustained waveforms
(selected pulse portions of waveforms; 1 sub-field)
CH1: Y drive waveform
TP3844 – TP3713 (SUS.GND)
CH2: Y drive waveform
TP3837 – TP3713 (SUS.GND)
CH3: X drive waveform
K3402 (P.SUS) – K3404 (SUS.GND)
V: 50V/div., H: 200µsec/div.
–GND
CH1
CH2
–GND
CH3
Sustained waveforms
(selected pulse portions of waveforms; 1 sub-field)
(enlarged)
CH1: Y drive waveform
TP3844 – TP3713 (SUS.GND)
CH2: Y drive waveform
TP3837 – TP3713 (SUS.GND)
CH3: X drive waveform
K3402 (P.SUS) – K3404 (SUS.GND)
V: 50V/div., H: 20µsec/div.
CH1
–GND
CH2
–GND
CH3
–GND
–GND
–GND
–GND
PDP-505HD
–GND
–GND
–GND
–GND
–GND
–GND
37