Philips AZ 1500, Service Manual

Page: 8 / 34

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