Tips 29~30 - Pioneer PDP-V401 Field Service Manual

August 25, 2005
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Symptom: Picture tears with 480P component.
Cure: Replace RGB, AWV1687.
Models Covered: PDP501MX, PDPV501X
Tip Date: July 27 2005
The Tech Name: Bob Shoemaker
Symptom: Unit turns on, but no pix or OSD. No scan pulses from Dvid.
Cure: Replace RGB, AWV1687. No VD out.
Models Covered: PDP501MX, PDPV501X
Tip Date: January 21 2004
The Tech Name: Bob Shoemaker
Symptom: 1" WIDE LINE IN TOP OR BOTTOM 1/2 THAT CHANGE COLOR, ETC WHEN TOUCHING RIBBONS TO OR
FROM CABLE ASSY.
Cure: CHECK FOR UNLOCKED OR CRACKED CONNECTORS ON UCON OR DVID.
Models Covered: PDP501MX, PDPV501X
Tip Date: December 31 2002
The Tech Name: Bob Shoemaker
Symptom: Intermittant power down. No PD pulse and all supplies OK.
Cure: 27k resistor had cracked solder. Located by RV4 & 5. Probably 150V OVP detector.
Models Covered: PDP501MX, PDPV501X
Tip Date: January 17 2002
The Tech Name: Bob Shoemaker
Symptom: Distorted, out of sync, or no picture with PC connected on input #3 or #4. Other sources on other inputs
were fine. Tried several computers with numerous settings with no result. Replaced the RGB board assy.(AWV1687)
and still had same symptom.
Cure: Replaced the system control board (AWV1689) and restored normal operation.
Models Covered: PDPV501
Tip Date: October 22 2001
The Tech Name: Tony Perkins
Symptom: Top 1/2 of pix is white after replacing YA & scan for PD.
Cure: CN7111 (T15) of Cable B plugged in crooked (no Vadr or 3vcc).
Models Covered: PDP501MX, PDPV501X
Tip Date: December 12 2000
The Tech Name: Bob Shoemaker
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