Cd Service Test Program - Philips AZ 1500 Service Manual

SERVICE TEST PROGRAM
STOP button pressed in any step returns
*
to begin of Service Testprogram.
To leave Service Testprogram switch mode switch
*
to off-position.
Door switch is ignored → CD door can be opened.
*
* Volume up/down buttons function independentely
of the service testprogram.
DISPLAY TEST EP2PROM CLEAR
N BAND button N PREV button
pressed? pressed?
Y Y
Display shows all
Display shows
segments and flags.
PASS
see figure 1
E2prom clear
N BAND button N STOP button
pressed? pressed?
Y
Y
Display shows part
segments and flags.
see figure 2
N STOP button
pressed?
Y
Display shows part
segments and flags.
see figure 3
N STOP button
pressed?
Y
SHUFFLE PROG REPEAT ALL
DBB
FM AM MW LW
FIGURE 1
PROG ALL
SHUFFLE REPEAT
FM MW DBB AM
FIGURE 2 FIGURE 3
4 - 2
CD TEST
To enter CD Service
Testprogramm hold
BAND & MODE buttons
depressed while switching
CD mode on.
Display shows
version number Slide servo, Radial servo, Focus servo, Disc motor
of the µ P - software.
and Laser are switched off.
S-19 Mute is switched on via decoder IC.
CD SERVO TEST
N PLAY button
pressed?
Y
Display shows
P-01
SLIDE MOTOR test
N PLAY button NEXT button N PREV. button
pressed? pressed? pressed?
Y Y Y
FOCUS search
Display shows
Slide moves Slide moves
F-02
outside as long as inside as long as
button is held button is held
objective moves up&down
depressed. depressed.
disc motor for 160ms "on"
N
FOCUS found?
Y
Display shows
FM
disc motor turns.
STOP button N
pressed?
Y
Error code
Err 1 No Focus found.
Time out error for disc motor reach the normal speed.
Err 2
Err 3 Focus error during tracking initialization.
Err 4 Subcode error on play mode.
Err 5 Focus error on play mode.
Err 6 Radial error on search mode.
Err 7 Focus error
LW
SERVICE PLAY TEST
PROG button
DISC MOTOR test
N N N
VOL-DN button VOL-UP button
pressed? pressed?
Y Y
Disc motor turns Disc motor turns
Set is in Service PLAY Mode.
counter clockwise clockwise
In case of failures, error
as long as button as long as button
codes according to table 1
is held depressed. is held depressed.
will be displayed.
(brake) (accelerate)
CD ERROR CODES
Error description
1) How to set f req uency grid:
table 1
4 - 2
TUNER TEST
pressed?
The Service Play Mode is 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.
SERVICE PRESET FREQUENCIES
EUROPE EUROPE2 B OVERSEAS
REGION
FM/MW/LW FM/MW FM/MW
1)
Grid switchable
10-100kHz/9-50kHz
PRESET
/00/05/20/25 /00
1 87.5 MHz 87.5 MHz 87.5 MHz
108 MHz 108 MHz
2 108 MHz
3 531 kHz 531 kHz 531/530 KHz
4 1602 kHz 1602 kHz 1602/1700 kHz
5 558 kHz 558 kHz 558/560 kHz
6 1494 kHz 1494 kHz 1494/1500 kHz
7 153 kHz -
8 279 kHz -
9 198 kHz -
10 - -
11 - -
12 - -
13 - -
table 2
AM - 9 k Hz / FM - 50 k Hz : Hold BAND KEY with the CD PREV. KEY simultaneously and then switch to TUNER .
AM - 10 k Hz / FM - 100 k Hz : Hold BAND KEY with the CD NEXT KEY simultaneously and then swutch to TUNER .
Selected frequency grid is stored in the EEPROM.
To enter Service
Testprogramm hold
BAND & MODE buttons
depressed while switching
TUNER mode on.
Display shows
version number
of the µ P - software.
S-19
N
PLAY button
pressed?
Y
Ser. preset frequencies
acc. table 2 are copied
to the RAM.
Tuner is normal working
STOP button N
pressed?
Y
EAST-EUROPE USA
FM/MW FM/MW
/01/21 /14 /14/17/37
65.81 MHz 87.5 MHz
108 Mhz 108 MHz
74 MHz 530 kHz
87.5 MHz 1700 kHz
531 kHz 560 kHz
1602 kHz 1500 kHz
- 558 kHz -
- 1494 kHz -
- - -
- - -
- - -
- - -
- - -