Service Test Program - Philips AZ4000 Service Manual

SERVICE TEST PROGRAM

DISPLAY TEST
N
SLEEP
button
pressed?
Y
Display shows all
segments and flags
for checking open circuits.
see figure 1
N SLEEP button
pressed?
Y
Display shows figure 2.
N STOP button
pressed?
Y
shuffle
MP3CD
sleep
all
repeat CD
program
tuner
stereo
fig. 1
fig. 2
4 - 2
To enter Service
Testprogram hold
DISPLAY & UB buttons
depressed and
press POWER
Display shows
version number
of the µP - software.
CD SERVO TEST
N CD MODE button
STOP button pressed in any step returns
pressed?
to begin of Service Testprogram.
Y
Display shows
CD99MP3
SLIDE MOTOR test
PLAY button
N PREV
NEXT button
N
pressed?
pressed? button pressed?
Y
FOCUS search Y
Display shows
FOC ERR
Slide moves Slide moves
objective moves up&down
outside as inside as
disc motor for 300ms "on"
long as button long as button
is held is held
depressed. depressed.
N
FOCUS found?
Y
Display shows
FOC OK
disc motor turns.
N PLAY button
pressed?
Y
Display shows
DISK OK
PLAY button N EUR
pressed?
Y
EUROPE
REGION
FM/MW
Display shows &
RDL SET VERSIONS
/00 /05
release mute
1) To toggle frequency grid press CD MODE button for more than 5s in normal tuner mode
STOP button
pressed? (not in service testmode).
GRID 9
Y
Display will show either
* Door switch is ignored → CD door can be opened.
* In CD- and Tuner tests the sound settings Volume up/down,
DSC, IS and DBB function as in normal mode,
but flags will not be indicated on the display in all steps.
S
stands for Service mode
Slide servo, Radial servo, Focus servo, Disc motor
S 37
and Laser are switched off.
Mute is switched on via decoder IC.
DISC MOTOR test
PRESET-UP
PRESET-DN
N N N
button
button
pressed?
pressed?
Y
Y Y
Display shows: Display shows:
CC CCW
Disc motor turns Disc motor turns
clockwise counter clockwise
as long as button as long as button
is held depressed. is held depressed.
TUNER VERSIONS
USA OSE
USA OVERSEAS
FM/MW FM/MW
1) Grid switchable
100/10kHz - 50/9kHz
/17 /01 /11 /19
table 2
GRID10
or for 2 s.
4 - 2
FORMAT EEPROM TUNER TEST
PROG button N
pressed?
Y
Display shows Display shows version
EPF of tuner board as long as
any key will be pressed.
for 2s.
e.g.
EEPROM is cleared and
default values are stored.
Tuner is normal working
except for the PROGRAM
button.
This test should be done at the
end of the production process
so that every set is customised
before leaving factory.
switched off?
Exit Service Testprogram
CD ERROR CODES
Error number Error description
E1000 Focus error
Triggered when the focus is lost during playing the CD.
E1001 Radial error
Triggered when the radial servo is not on track for a certain time during playing the CD.
E1002 Slide-in error
The sledge did not reach its inner position (innerswitch is closed) before approximately 6
seconds have pressed by - innerswitch or sledgemotor problem.
E1003 Slide-out error
The sledge did not come out of its inner position (innerswitch is open) before
approximately 300ms have passed by - innerswitch or sledgemotor problem.
E1005 Jump error
Triggered when the jump destination could not be found within a certain time.
E1006 Subcode error
No valid subcode for a certain time during play.
E1007 PLL error
The Phase-Lock-Loop could not lock within a certain time.
E1008 Turntable motor error
Generated when the CD could not reach 75% of speed during start-up within a certain
time. Discmotor problem.
E1020 Focus search error
The focus point has not been found within a certain time.
table 1
→
Error type: W = Warning set continues operation, message remains on the display until next error occurs
or any key is pressed.
F = Fatal Error →
set stops operation, message remains on the display.
SOURCE N
button
pressed?
Y
Y
EUR
POWER
N
Y
Error type
W
W
W
W
W
W
W
W
F