Pioneer PDP-507XD Service Manual

PDP-507XD
81
5678
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7
8
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D
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A
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E
5. DIAGNOSIS INFORMATION
5.1 THE FLOW OF DIAGNOSIS
5.1.1 FLOWCHART OF FAILURE ANALYSIS FOR THE WHOLE UNIT
Flowchart of Failure Analysis for The Whole Unit
START
Is the STB LED lit?
Is STB 3.3 V power supplied?
(Check the power at the IF micro-
computer on the MAIN Assy.)
Can the unit be turned on
(Relay ON)?
Is the panel arbitrary turned on or
off repeatedly? Or do luminescent
spots appear on the screen?
Is the power shutdown?
A shutdown occurs.
See "Shutdown diagnosis." ⇒ SD
Is the voltage at AC_DET on the
POWER SUPPLY Unit high?
Replace the POWER SUPPLY
Unit.
Check if the cable that connects
the POWER SUPPLY and MAIN
Assys is firmly connected.
The blue LED on the DIGITAL Assy indicates ON/STB
of the panel and causes for a power-down or shutdown.
If neither the blue nor red LED lights, it is likely that the
power to the STB system is not supplied. (failure, PASV-STB status)
If the module microcomputer does not
receive the PON command, it is likely
that the main microcomputer did not
issue the command.
A power-down will not be generated if the drive is off.
• Check the DRF SW.
• Before turning the drive off with the RS-232C
commands or using the remote control unit,
turn the unit off.
In a case where luminescent spots appear
or the panel is repeatedly turned on or off
In a case where luminescent spots appear
Is the voltage at the RELAY port
of the connectors between the
DIGITAL and POWER SUPPLY
Assys H (3.3 V)?
No
No
Is the drive off?
Turn the drive on.
Is the abnormality associated
with a single scan line?
No
Yes
Yes
Yes
Yes
A power-down occurs.
Does the screen display reset
lighting?
Is there any local abnormality
on the screen?
Is the abnormality associated
with one address or one TCP?
See "Power-down diagnosis." ⇒ PD
Yes
No
No
No
Yes
No
No
NG
No
Yes
Yes
Yes
Yes
No
No
Yes
No
Yes
Yes
No
Yes
Problems concerning STB status
Problems concerning the power
Problems concerning lighting of the panel
Failure analysis for the
MAIN Assy. ⇒ MA1
Failure analysis for the
MAIN Assy. ⇒ MA2
Failure analysis for the
POWER SUPPLY Unit. ⇒ PS1
Failure analysis for the
POWER SUPPLY Unit. ⇒ PS2
Failure analysis for the
POWER SUPPLY Unit. ⇒ PS3
Failure analysis for the
drive system ⇒ DR1
Failure analysis for the
drive system ⇒ DR2
Failure analysis for the
drive system ⇒ DR3
Failure analysis for the
drive system ⇒ DR4
Yes
No
Replace the panel chassis.
A

Pioneer PDP-507XD Specifications

General

Comb filter	3D
Aspect ratio	16:9
Product color	Black
Noise reduction	Yes
Display diagonal	50 \
Display brightness	1100 cd/m²
Display resolution	1365 x 768 pixels
Display technology	Plasma
Viewable size diagonal	1270 mm
Contrast ratio (typical)	4000:1