Test Mode - Sony CDP-XE220 Service Manual

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4-1. AF MODE
The following checks can be performed in the AF mode, which is
set by connecting the TP2 (JW40 : AFADJ) 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 con-
tinuously, the following will be displayed. (Partial lighting 1)
8
8 8
(Partial lighting 1)
When the p button is pressed continuously, 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 continuously, all
will light up again.
• 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 "13". It will not count
for buttons already pressed once, but will display the button's
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number.
88
8888
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Display of button number
Display of counting
Button No.
Button
Displayed
P
02
ENTER (AMS) 04
0
05
)
06
TIME 07
REPEAT 08
PLAY MODE 09
When the AMS knob is rotated to the right, the music calendar
changes from 1 n – – n 20 n 1.
When rotated to the left, it changes from 20 n 1 n 20 – –
• Remote commander check
When the · button of the remote commander is pressed, the
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"·" lights up. All go off when the other buttons are pressed.
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SECTION 4

TEST MODE

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Button No.
Button
Displayed
PEAK SERCH 10
CHECK
11
CLEAR 12
OPEN/
All lit
CLOSE §
PLAY ·
Partial lighting 1
STOP p
Partial lighting 2
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4-2. ADJ MODE
The following operations are performed in the ADJ mode, which
is set by connecting the TP3 (JW41 : ADJ) terminal to the Ground
and turning on the power.
FUNCTIONS OF NUMBER BUTTONS
(With the general remote commander)
Button
1 Focus bias adjustment plus (Not used in servicing)
2 EF-BALANCE adjustment plus (Not used in servicing)
Tracking servo off
3
4 Tracking gain adjusting plus (Not used in servicing)
Laser power control off (Not used in servicing)
5
6 Focus bias adjustment minus (Not used in servicing)
EF-BALANCE adjustment minus (Not used in servicing)
7
Tracking servo on
8
9 Tracking gain adjustment minus ((Not used in servicing)
Laser power control on (Not used in servicing)
10
4-3. AGING MODE
This unit is equipped with an aging mode to check operations of the
mechanism deck.
• When faults occur:
Aging stops, and the state when aging stopped is displayed on the
fluorescent display tube.
• When no fault has occurred:
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Aging is continued repeatedly.
Aging method 1
(When using the aging mode remote controller (J-2501-123-A)):
1. Press the 1/u button and turn ON the power.
2. Set the disc on the tray.
3. Press the AGING START button of the aging remote controller.
4. Aging starts and the message shown in Fig. 1 is displayed on the
fluorescent display tube.
5. To end, press the 1/u button.
Aging method 2 (When no aging mode remote controller):
1. Press the 1/u button and turn ON the power.
2. Set the disc on the tray.
3. Press the ∏ button, CHECK button, and PLAY MODE button
together in this order.
4. Aging starts and the message shown in Fig. 1 is displayed on the
fluorescent display tube.
5. To end, press the 1/u button.
Fig. 1 Message in Aging Mode
Code
State
No.
0 Load in
1
Access to TOC
2 Access to last track
3 Playback of last track
(3 seconds)
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4 Access to first track
.
5
Playback of first track
(3 seconds)
6 Load out
9 4 2 8
Function
0 5 8 2 9 9 4 2 8
Display when Display when
normal abnormal
A0 E0
A1
E1
A2
E2
m
Counter display E3
A4
E4
Counter display
E5
A6
E6
9 9
9 9