Pioneer PRO-510HD Service Manual page 27

7. GENERAL INFORMATION
7.1 DIAGNOSIS
7.1.1 DIAGNOSIS METHOD
Various protection circuits are provided for this unit. When these
protection circuits are activated, the power of the unit is shut down
(P.D.: Power Down).
The defective parts can be easily diagnosed by observing the LEDs
inside the following assemblies.
1. POWER SUPPLY Assy
For models PRO-610HD/510HD : D915 in the AWV1795
For models SD-582HD5/532HD5 : D915 in the AWV1808
2. DEFLECTION SERVICE Assy
Common to all models
For service assembly
3. CONV. AMP Assy
Common to all models
POWER SUPPLY ASSY
D915
DEFLECTION SERVICE ASSY
CONV. AMP ASSY
SIDE A
LED points
PRO-610HD, PRO-510HD, SD-582HD5, SD-532HD5
: D321 in the AWV1796
: D321 in the AWV1809
: D923 in the AWZ6456
SIDE A
SIDE A
D321
D923
How to diagnose a failure
The D915 LED of the POWER SUPPLY Assy always lights up
when the power is turned off because of the protection circuits (P.D.).
P.D.
Is only the LED of the
POWER SUPPLY Assy lit?
NO
Which LED is lit, that of the
DEFLECTION SERVICE Assy
or of the CONV. AMP Assy?
DEFLECTION
SERVICE Assy
to P.D (2)
YES
to P.D (1)
CONV. AMP ASSY
to P.D (3)
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