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SECTION 4
TEST MODE
[Outline]
• This set provides the Overall adjustment mode (Assy mode) that
allows CD and MO disc to be automatically adjusted when in
the test mode. In this overall adjustment mode, the protect switch
is detected to judge the disc, CD or MO, and each adjustment is
automatically executed in order. If a fault is found, the system
displays its location. Also, the manual mode allows each indi-
vidual adjustment to be automatically adjusted.
• The keys in the description refer to the keys on both set and
remote commander unless otherwise specified. Though LCD
display shows the LCD of the remote commander, same con-
tents are also displayed on the LCD of the set.
[Setting Method of Test Mode]
There are two different methods to set the test mode:
1 Short BP801 (TEST) on the MAIN board with a solder bridge
(connect pin y; of IC801 to the ground). Then, turn on the
power.
– MAIN BOARD (Conductor Side) –
2 In the normal mode, turn on the HOLD switch on the set. While
pressing the N key on the set, press the following set keys
in the following order:
> t > t . t . t > t . t
> t . t X t X
[Operation in Setting the Test Mode]
• When the test mode becomes active, first the display check mode
is selected. (Press x key once, when the display check mode
is not active.)
• Other mode can be selected from the display check mode.
• When the test mode is set, the LCD repeats the following dis-
play.
LCD display
• When the X key is pressed and hold down, the display at that
time is held so that display can be checked.
[Releasing the Test Mode]
For test mode set with the method 1:
Turn off the power and open the solder bridge on BP801 (TEST)
on the MAIN board.
Note: Remove the solders completely. Remaining could be shorted with
the chassis, etc.
For test mode set with the method 2:
Turn off the power.
Note: If electrical adjustment (see page 18) has not been finished com-
pletely, always start in the test mode. (The set cannot start in nor-
mal mode.)
Microprocessor
version
display
All off
All lit
xxxxxxxxx
V0.000
888
001
F1SHUF
REC
BP801
Short: Test Mode
Open: Normal Mode
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