Philips AJ3970, Service Manual

Page: 8 / 27

4 - 2 4 - 2
STOP button pressed in any step returns
to begin of Service Testprogram.
WAKE UP
TRACK button
pressed?
WAKE UP
TRACK button
pressed?
N
Y Y
Display shows all
segments and flags.
see figure 1
N
Y
Display shows part
segments and flags.
see figure 2
DISPLAY TEST BUZZER TEST TUNER TEST
CD SERVO TEST
Display shows
version number
of the
µ
P - software.
PLAY button
pressed?
Display shows
PLAY button
pressed?
UP
§
button
pressed?
DOWN
∞
button
pressed?
WAKE-UP
TRACK button
pressed?
Slide moves
outside as long as
button is held
depressed.
Slide moves
inside as long as
button is held
depressed.
Y Y Y Y
N
PLAY button
pressed?
Y
N
N
Y
N
N N N
FOCUS found?
Y
N
Focus switch on
Y
Y
Display shows
disc motor turns.
Display shows
then
FOCUS search
Auto Adjustment test mode
SLIDE MOTOR test DISC MOTOR test
To enter Service Test Program
keep ALARM RESET & PLAY
buttons depressed while
power up (plug-in) the set.
*
*
*
To leave Service Testprogram disconnect
the power supply.
Door switch is ignored
→
CD door can be opened.
Slide servo, Radial servo, Focus servo, Disc motor
and Laser are switched off.
Mute is switched on via decoder IC.
N N
Disc motor turns
in play direction
as long as button
is held depressed.
r005
AL1 button
pressed?
Y
N
Display shows
Roger beep tone
STOP button
pressed?
N
Y
PLAY
Fb: xx
Display shows
-F02
STOP button
pressed?
Y
WAKE UP
TRACK button
pressed?
N
Y
Display shows part
segments and flags.
see figure 3
RADIO button
pressed?
Y
N
Display shows
Switch on radio
STOP button
pressed?
N
Y
SERVICE PLAY TEST
Error code Type Error description
E-00 W
W
W
W
F
F
F
Focus error
E-22 Fatal subcode error
Subcode error
E-05 Jump error
E-01 HF error
CD ERROR CODES
table 1
figure 1
figure 2 figure 3
E-20 Focus search erro
E-23 Light detection error
F......Fatal error W......Warning
E-06
PM
AL TIME 1 AL TIME 2
AL TIME 1 AL TIME 2
PM
AL2 button
pressed?
Y
N
Display shows
Buzzer alarm tone
RADIO button
pressed?
Y
N
Display shows
Toggle radio band
BRIGHTNESS TEST
BRIGHTNESS
button pressed?
Y
N
Display shows
STOP button
pressed?
N
Y
Y
Toggle Main
clock light
Toggle LED brightness
toggle auto-adjustment
display mode
Fb:xx -> Fg:xx
-> Fo:xx -> tb:xx
-> tg:xx -> to:xx
NEXT button
pressed?
STOP button
pressed?
PLAY button
pressed?
The SERVICE PLAY MODE intended
to detect and identify the failures in the
CD mode.
In this mode the electronics will still function
even when an error is detected so that
repair activities can be carried out.
Set is in Service PLAY Mode.
In case of failure, error
codes according to table 1
will be displayed.
BRIGHTNESS
button pressed?
Y
Toggle Alarm
time light
SET TIME
button pressed?
Y
Toggle AL1
Led light
AL1 button
pressed?
Y
Toggle AL2
Led light
AL2 button
pressed?
SERVICE TEST PROGRAM
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