Power On Initial Flow Chart - Panasonic UF-580 Technical Manual

1.2.

Power On Initial Flow Chart

0
Y
Wait Data from PC
via Parallel I/F
Update Program
Scanning LED Lit &
Scanning LED Flashes
UF-580/590/
780/790
Only
Ver 2.00
Initial Flow
Power ON
Hardware Reset
Boot Program in CPU Start
Is Cover Open CPU (73) and
BPNT CPU (44) is Low ?
N
UF-580/590/
780/790
Only
CPU I/O Port Set
I/O Device Reset
I/O Device Port Set
System Program (FROM) Start
SDRAM Working Area Clear
PANEL Initialize
1
< Check Output : If Signal is not correct, each IC
CNP6.6 3.3V -> IC1 CPU, IC3 SHINE
Power
CNP6.7 5V -> (3) IC6 (4) 2.5V -> IC3 SHINE
Matser 5MHz -> (63) CPU (90) 50MHz
Clock -> (103) IC3 SHINE
Reset IC2 (4) ->
Reset
->
< Check Output : If Signal is not correct, each IC
may be defective >
CPU (CS0) IC1 CPU (107) ->
CPU (RD) IC1 CPU (95) ->
CPU (A1-21) IC1 CPU (142-118) ->
(1-10, 16-25, 48) IC9 FROM
CPU (D0-D15) IC1 CPU(114, 17-1) ->
(29-36, 38-45) IC9 FROM
< Check Output : If Signal is not correct, each IC
nMDMRST
nFRPRST
< Check Output : If Signal is not correct, each IC
CPU (PNLTXD) IC1 CPU (67) ->
CPU (PNLRXD) IC1 CPU (66) ->
CPU (PNLRST) IC1 CPU (85) ->
3.3V
...
0V
Below is displayed on LCD
UF-780/790 (xx)
DX-800 (xx)
33
UF-580/590/780/790
XTAL
3V
0V
may be defective >
-> (32) IC3 SHINE (39)
-> (59) IC1 CPU
3.3V
0V
-> (26) IC9 FROM
-> (28) IC9 FROM
->
->
may be defective >
IC1 CPU (84) -> -> (41) IC22 Modem
IC1 CPU (83) -> -> (60) IC30 FRIP
may be defective >
-> CNP14.5
-> CNP14.6
-> CNP14.9
5V
...
0V
UF-580/590 (xx)
or
DX-600 (xx)
or
DX-600/800
DEC 2003