Philips AZ9015 Service Manual page 19

SERVICE TEST PROGRAM – FLOW CHART
To enter service test program open the CD-door and
PRELIMINARY
hold "PREVIOUS" & "STOP" buttons depressed while
SETUP
turning POWER ON (i.e. connecting the AC/DC adaptor)
Display shows
software-version
(e.g. "S- ")
13
"NEXT" "MODE"
N N
pressed? pressed?
Y Y
DISPLAY TEST 1 KEY TEST
display shows Display shows
test pattern 1 "--"
Hold key depressed
"NEXT"
N
and check display
pressed?
according to table1
Y
DISPLAY TEST 2
display shows
test pattern 2
"NEXT"
N
pressed?
Y
test pattern 1 (all segments activated) test pattern 1 (all segments activated)
test pattern 2 (alternate segments activated) test pattern 2 (alternate segments activated)
table1 – key test table2 – Tuner service frequencies
DISPLAY SET
KEYS OF SET
DBB 1
PROGRAM 2
MODE 3
PLAY 5
NEXT 6
PREVIOUS 7
ESP (not for AZ7902) 8
KEYS OF CORD REMOTE CONTROL
STOP 4 rc
PLAY 5 rc
NEXT 6 rc
Press "STOP" on the CD-player to exit the key test.
3-7
MAIN MENU
"RADIO"
N
pressed?
Y
Tuner version can be toggled
TUNER TEST
by pressing buttons other than
Display shows
"RADIO" and "STOP".
Tuner version
"RADIO"
N
pressed ?
Y
Load Service
preset frequ.
(see table2)
Tuner in normal
play-mode
table3 – playback error analysis
CODE ERROR
E 1000 focus error
E 1001 radial error
E 1002 sledge in error
E 1003 sledge out error
E 1004 DRAM filling
error
BAND PRESET FREQUENCY
EUROPE USA
1 87.5MHz 87.5MHz
2 108MHz 108MHz E 1005 jump error
FM 1 3 98MHz 98MHz
4 – –
5 – – E 1006 subcode error
6 – –
E 1008 turntable motor
1 531kHz 530kHz
error
2 1602kHz 1700kHz
AM 3 558kHz 560kHz
E 1020 focus search
4 1494kHz 1500kHz
error
5 – –
–
6 –
"PLAY"
pressed?
SERVO TEST
Playback test can only
Display shows:
"DBB"
N
be entered if CD-door
"S
pressed?
is closed!
• State of switches
x = door switch
Y
y = inner switch
"0" = closed
"1" = open
PLAYBACK
TEST
"PLAY"
Error during
N pressed?
playback?
Y
Display shows
error-code
(see table3)
FOCUS TEST
• Focus status
N
Fatal error?
" F" = focus OK
"-F" = focus error
= CD-RW mode
Y
Note: If focus has
been lost, focus
start-up procedure
Stop playback
is entered (ramping).
"PLAY"
EXIT
pressed and
SERVICE TEST focus OK?
PROGRAM
DISC MOT. TEST
• Disc speed status
" d" = speed OK
TYPE CAUSE "-d" = speed error
• Focus status
" F" = focus OK
non fatal Focus point lost for at least 3ms.
"-F" = focus error
= CD-RW mode
non fatal The radial servo was offtrack for a
certain amount of time.
non fatal The slide did not reach it´s inner pos.
(inner switch of CD-drive doesn´t close)
"PLAY"
within approx. 6 seconds.
and focus OK
and speed
non fatal The slide did not come out of it´s inner
OK?
pos. (inner switch of CD-drive is open)
within approx. 250ms.
RADIAL TEST
non fatal The DRAM controller was not able to
• On track status
connect two consecutive audio frames.
" r" = on track
The microcontroller had to perform a
"-r" = not on track
• Disc speed status
direct audio connection that produces
" d" = speed OK
audible clicks.
"-d" = speed error
• Focus status
non fatal The offtrack values don´t decrease
" F" = focus OK
properly when jumping tracks, the jump "-F" = focus error
= CD-RW mode
destination could not be found.
non fatal No valid subcode for approx. 230ms.
fatal During start-up, the disc speed did not "NEXT"
reach 75% of the nom. speed within depressed?
approx. 6 seconds.
fatal The focus point could not be found
within approx.
CUE-MODE
10 seconds (no valid TOC info), resp.
Track servo jumps
30 seconds (valid TOC info).
16 tracks forwards
3-7
N
Y
xy "
"NEXT" "PREV" "MODE"
N N N
depressed? depressed? depressed?
Y Y Y Y
Disc motor turns
Slide moves
Slide moves
clockwise
inside until inner
outside
switch is activated (accelerate)
ATTENTION: FROM THIS TEST ONWARDS THE
LASER IS SWITCHED ON !!
→ AVOID DIRECT EXPOSURE TO BEAM !!
"DBB" "NEXT" "PREV"
N N N
pressed? depressed? depressed?
Y Y Y Y
Toggle play mode
Slide moves Slide moves
betw. "normal" and
outside inside
"CD-RW compatible"
N
Y
"PREV"
N N
depressed?
Y Y
REVIEW-MODE
Track servo jumps
16 tracks backw.
"PROG"
N N
depressed?
Y
Disc motor turns
counter-clockwise
(brake)
"MODE" "PROG"
N N N
depressed? depressed?
Y Y
Disc motor turns Disc motor turns
clockwise counter-clockwise
(accelerate) (brake)
CS 46 704