Adjustment - Pioneer PDA-4003 Service Manual

PDA-4003

6. ADJUSTMENT

When Assy was exchanged or when E
was exchanged, CONTRAST and BRIGHTNESS adjustment are
necessary. This adjustment is done in the factory mode.
FACTORY MODE
How to Enter the Factory Mode
The factory mode enters when tact switch (S1) of DOWN
CONVERTER ASSY is pushed.
Push
When tact switch (S1) is pushed again, the factory mode is made
clear.
Adjustment Method
Adjustment Item
CONTRAST adjustment
BRIGHTNESS adjustment
20
2
PROM (IC8: 24LC16B)
S1
Input Signal Measurement Point
CN1-Pin2, CN2-Pin2
10 step signal
(DOWN CONVERTER
etc.
ASSY)
STANDBY
/ON
VIDEO Y/C
MENU
SET
DOWN CONVERTER
MENU
Selection of adjustment
Change of adjustment value
Adjustment Method
Adjust so that the signal amplitude of the input signal (CN1-Pin2) and
the output signal (CN2-Pin2) becomes same with the remote control
key.
RGB1
RGB2