Section 4. Test Mode - Sony CDP-XE800 Service Manual

4-1. AF MODE
The following checks can be performed in the AF mode, which is
set by connecting the TP2 (AFADJ : JW76) terminal on MAIN
board to the Ground and turning on the power.
• FL tube check
After all segments light up, when the · button is pressed, the
following will be displayed. (Partial lighting 1)
8
8 8 8
When the p button is pressed, the following will be displayed.
(partial lighting 2)
2 4
6 8 10
12 14
16 18 20
(Partial lighting 2)
When the OPEN/CLOSE § button is pressed, all will light up
again.
When the ≠ AMS ± knob is turned right, the following
will be displayed. (partial lighting 3)
1
(Partial lighting 3)
• Key check
All buttons have corresponding button numbers. When a button is
pressed, the counter will count up and display the button's num-
ber. However, the counter will only count to "17". It will not count
for buttons already pressed once, but will display the button's num-
ber.
88
8888
Â
Display of counting
SECTION 4
TEST MODE
(Partial lighting 1)
88
Â
Display of button number
— 6 —
Button No.
Button
Displayed
TIME
00
FADER
01
REPEAT
02
PLAY MODE
03
EDIT/
04
TIME FADE
PEAK SEARCH 05
AUTO SPACE
06
MUSIC SCAN 07
P
25
• Remote commander check
When the · button of the remote commander is pressed, the
"·" lights up. All go off when the other buttons are pressed.
• Audio check
• Initial setting of digital filter and release of mute.
• When the TP2 (AFADJ) terminal on MAIN board is set to HIGH
(VDD), emphasis turns on. When set to LOW (GND), it turns
off.
Button No.
Button
Displayed
ENTER 32
CLEAR 33
CHECK 34
)
35
0
36
OPEN/
All lit
CLOSE §
PLAY ·
Partial lighting 1
STOP p
Partial lighting 2
≠ AMS ±
Partial lighting 3