Operational Flow Chart - Pioneer DEH-2237ZF X1R/UC Service Manual

5

7.3 OPERATIONAL FLOW CHART

5
6
Power ON
VCC=5V
Pin 16,62
YES
bsens
Pin 27
bsens=L
asens
Pin 21
asens=L
SWVDD H
Pin 44
syspwr
L
Pin 70
Source Keys
Operative
Source ON
YES
Completes power-on operation.
(After that, proceed to each source operation)
DEH-2237ZF/X1R/UC
6
7
Load Micro ROM data
7
8
A
B
C
D
E
F
57
8