Panasonic DMR-EZ27P Service Manual page 22

DMR-EZ27P / DMR-EZ27PC
Mode name
Laser power confirmation Drive state is judged based on difference
Turn on all FL/LEDs
S1 signal output
S2 signal output
Front connection
inspection
Production Date Display Display the date when the unit was produced.
Display the accumulated
working time
Item
Description
between laser power value at shipping and
present laser power value.
All segments of FL and all LEDs are turned
on.
Forcibly superimpose the S1 signal (approx.
4.5V DC) on the EE chroma signal, and check
the output on the S terminal.
Forcibly superimpose the S2 signal (approx.
2V DC) on the EE chroma signal, and check
the output on the S terminal.
Press all front keys and check the connection
between Main P.C.B. and Front key Switches.
Display the accumulated unit´s working time.
FL display
If DVD-RAM disc in not inserted,
[NO DISC] is displayed.
If power value study was failed,
[NG] is displayed.
All segments are turned on.
(1) Each time a key is pressed,
segment turned on increases one
by one.
(2) Total number of keys that have
been pressed.
YY: Year
MM: Month
DD: Day
(Indicating unit: Second)
22
Key operation
(Remote controller key)
1. into RAM
Drive in service mode. (Other
media are assumed to be non-
correspondence.)
2. Press [4] [4].
Press [5] [1] in service mode.
Press [5] [2] in service mode.
Press [5] [3] in service mode.
Press [5] [4] in service mode.
*When finish this mode, Press
[Power] for 10 seconds.
Press [6] [1] in service mode.
Press [6] [4] in service mode.