Pioneer PDP-503PE - Page 82

81
PDP-503PE, PDP-503PU
Block Diagram of Power Down Signal System
Address PD
Mute
DIGITAL
DC-DC
X Drive X DC-DC
OR
OR
PD Circuit
Y Drive Y DC-DC
OR
Relay
Circuit
AND
OR
OR
OR
D8
D11
8
6
7
4
5
1
2
3
ADR CONNECT
ASSY
(Upper)
DIGITAL VIDEO ASSY
SW POWER
SUPPLY
MODULE
X DRIVE ASSY
Y DRIVE ASSY
ADR CONNECT
ASSY
(Lower)
RESONANCE
ASSY
(Upper)
RESONANCE
ASSY
(Lower)
-
D12
D16
D1
X1
P4
P2
P3
Y1
D17
D15
-
IC1201-pin 8
IC1201-pin 6
D1202 Cathode
DIG_ADR.PD
PD_TRIGGER
Note: 1 - 8 show LED flashing number of times when power down occurred in this route.