Read Panasonic DP-130 / DP-150 Other Service Manuals online
21
1.2.
Power On Initial Flow Chart
1.2.1. Fax
<Check Output : If Signal is not correct, each IC
might be defective >
API
IC2(14) : Low / High
CPU(CS0)
IC1CPU(50) -> IC7(150)
-> (2) IC2(14)
-> (2) IC2(14)
CPU (RD)
IC1CPU(43) -> IC5
-> IC2(54)
-> IC2(54)
CPU(A1-3)
(A0~20)IC7(7~39) -> MSC(14,
16,17) -> IC2(4~32)
16,17) -> IC2(4~32)
CPU(D0-16)
IC1CPU(D0-16) -> IC2(33,35,38-)
Power
CN13(12,13)5V -> CPU
Master
Clock
Clock
7.16Hz -> (94)IC1CPU( 107)28.3MHz
XTAL
-> BL108
Reset
ResetIC5(8) -> -> (173)
->
->(108)IC1CPU
Power ON
Is Update Memory Card
Installed IC2(14) is Low ?
Initial Flow
CPU I/O Port Set
Y
Y
N
N
Panel Initial
Hardware Reset
Update Program
I/O Device Reset
I/O Device Port Set
1
0
Is program date
Same?
Boot Program in CPU Start
DRAM Working Area Clear
System Program (FROM) Start
System Program (FROM) Start
0V
3.5V
<Check Output : If Signal is not correct, each IC
* Check outside view of SC PCB before checking signal.
Especially check whether CN903 (FROM Card) pins
short or not.
Especially check whether CN903 (FROM Card) pins
short or not.
might be defective >
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