Pioneer PDP-4280HD, Service Manual

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PDP-4280HD
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8.3 HOW TO CLEAR HISTORY DATA
Clearance of various logs after the Assys are replaced
(1) Clearance of logs, using the RS-232C commands
Besides adjustment data, data on accumulated power-on time and logs on defective parts of the product are backed up.
Some of those data must be cleared after the Assys are replaced for service.
Notes: • As the pulse-meter count is used for each correction function, it must be cleared when an Assy relevant to
correction functions is replaced.
• When clearing logs, using the RS-232C commands, first enter Factory mode (by issuing FAY or PFY), then issue
the corresponding command.
(2) Clearance of logs, using the Factory menu
1
Plug in the AC cord, press the Power switch on the unit to set it to ON, then enter Standby mode.
2
Turn on the power, using the remote control unit, then enter Panel Factory mode.
Delete various logs, as shown in the figure below.
3
Turn the power off.
PANEL INFORMATION
ETC. (+)
BACKUP DATA : NO OPRT
BACKUP DATA : NO OPRT
DIGITAL EEPROM : NO OPRT
PD INFO. < = > : NO OPRT PD INFO. < = > : CLEAR
MAX TEMP. < = > : NO OPRT
P COUNT INFO. < = > : NO OPRT
PM/B1-B5 < = > : NO OPRT
HR-MTR INFO. < = > : NO OPRT
SD INFO. < = > : NO OPRT
Key Down 7th
Key Down
SET
Right SET (5 sec)
SD INFO. < = > : CLEAR
Right SET (5 sec)
HR-MTR INFO. < = > : CLEAR Right SET (5 sec)
PM/B1-B5 < = > : CLEAR Right SET (5 sec)
P COUNT INFO. < = > : CLEAR
Right SET (5 sec)
MAX TEMP. < = > : CLEAR
Right SET (5 sec)
Key Down
Key Down
Item Content
When the Panel
is replaced
When the POWER
SUPPLY Unit
is replaced
When the Other
parts
is replaced
RS-232C
Commands
Hour-meter Accumulated power-on time Must be cleared
No need to be
cleared
No need to be
cleared
CHM
Pulse-meter
Accumulated number of pulses
emitted Must be cleared
(mandatory)
No need to be
cleared
No need to be
cleared
CPM
Shutdown history
Cause of an SD and hour-meter
count
Must be cleared
No need to be
cleared
No need to be
cleared
CSD
Power-down history
Cause of an PD and hour-meter
count
Must be cleared
No need to be
cleared
No need to be
cleared
CPD
Power-on counter Relay-on count
No need to be
cleared
Must be cleared
(mandatory)
No need to be
cleared
CPC
MAX TEMP Historical max. temperature Must be cleared Must be cleared Must be cleared CMT