Pioneer f-502 Service Manual page 15

POWER DOWN DIAGNOSIS BY LED DISPLAY BY GENERATION
(GENERATION DETERMINED BY 3
G2
*
In G2 Models the LED does not blink. Lit LED indicates problem area.
BLINKS
G3 *
Y DRIVE
1
Y DRIVE DC-DC
2
X DRIVE DC-DC
3
X DRIVE
4
POWER SUPPLY
5
ADDRESS
6
ADR RESONANCE
7
DIGITAL VIDEO
8
9
10
11
12
More detailed help in troubleshooting is available in the
model specific sections, or in the product service manual.
Some Generation models have 2 versions with different part
*
numbers and different service manuals!
Model versions are determined by serial number.
RD
RED (LED BLINKS)
Panel LED only..Not Media Receiver
G4 *
MR POWER SUPPLY
POWER SUPPLY
SCAN IC
SCAN 5 VOLTS
Y DRIVE
Y DRIVE DC-DC
Y SUSTAIN
ADDRESS
X DRIVE
X DRIVE DC-DC
X DRIVE SUSTAIN
DIGITAL VIDEO
15
# IN MODEL PDP50_XXX)
G5
MR POWER SUPPLY
POWER SUPPLY POWER SUPPLY
SCAN IC
SCAN 5 VOLTS SCAN 5 VOLTS
Y DRIVE
Y DRIVE DC-DC Y DRIVE DC-DC
Y DRIVE SUSTAIN Y DRIVE SUSTAIN
ADDRESS
X DRIVE
X DRIVE DC-DC X DRIVE DC-DC
X DRIVE SUSTAIN X DRIVE SUSTAIN
DIGITAL VIDEO
G6
UNUSED
SCAN IC
Y DRIVE
ADDRESS
X DRIVE