table1 – key test
DISPLAY
01
02
03
05
06
07
08
09
10
04 RC
05 RC
06 RC
07 RC
KEY ON SET
DBB
PROGRAM
MODE
PLAY
NEXT
PREVIOUS
ESP
+
–
KEY ON CORD-RC
STOP
PLAY
NEXT
PREVIOUS
Press “STOP” on the CD-player to exit the key test.
table3 – focus sensitivity
DISPLAY
-F01
-F02
-F03
-F04
ESP-FLAG
off
on
on
on
FOCUS SENSITIVITY
Normal focus sensitivity for CDDA
Low focus sensitivity for
high-reflective CD-RW
Medium focus sensitivity for
normal-reflective CD-RW
High focus sensitivity for
low-reflective CD-RW
PRELIMINARY
SETUP
EXIT
SERVICE TEST
PROGRAM
Display shows
software-version
(i.e. “S-22”)
DISPLAY TEST 1
display shows
test pattern 1
DISPLAY TEST 2
display shows
test pattern 2
KEY TEST
Display shows
“--”
To enter the service test program
1. Disconnect the AC/DC adaptor and remove batteries
2. Open the CD-door
3. Hold “PLAY” & “PREV” buttons depressed
4. Connect the AC/DC adaptor or insert batteries
CUE-MODE
Track servo jumps
16 tracks forwards
“NEXT”
pressed?
“MODE”
pressed?
“DBB”
pressed?
“PLAY”
pressed?
“PLAY”
pressed?
Error during
playback?
“PLAY”
pressed and
focus OK?
“PLAY”
and focus OK
and speed
OK?
“NEXT”
depressed?
REVIEW-MODE
Track servo jumps
16 tracks backw.
Fatal error?
Display shows
error-code
(see table2)
PLAYBACK TEST
(CDDA-mode only)
Close CD-door &
press “PLAY”
Slide moves
outside
Slide moves
inside
“NEXT”
depressed?
“NEXT”
pressed?
“NEXT”
pressed?
“PREV”
depressed?
“MODE”
depressed?
“PROG”
depressed?
Stop playback
MAIN MENU
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
EXP50xEXP30x
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
N
Toggle focus
sensitivity
(see table 3)
“DBB”
pressed?
N
Y
“PREV”
pressed?
DSP Test
passed within
2s?
Display shows
“1 dSP” resp.
“DSP-TEST 1” +
DSP version
(i.e.
“t-25”)
N
Y
N
YY
Y
N
N
“PLAY”
pressed?
N
DRAM Test
passed within
3s?
CODE
E 1000
E 1001
E 1002
E 1003
E 1004
E 1005
E 1006
E 1008
E 1009
E 1020
ERROR
focus error
radial error
sledge in error
sledge out error
DRAM filling
error
jump error
subcode error
turntable motor
error
audio error
(error flag)
focus search
error
TYPE
non fatal
non fatal
non fatal
non fatal
non fatal
non fatal
non fatal
fatal
non fatal
fatal
CAUSE
Focus point lost for at least 3ms.
The radial servo was offtrack for a
certain amount of time.
The slide did not reach it´s inner pos.
(inner switch of CD-drive does not close)
within approx. 6s.
The slide did not come out of it´s inner
pos. (inner switch of CD-drive is open)
within approx. 250ms.
The DRAM controller was not able to
connect two consecutive audio frames.
The microcontroller had to perform a
direct audio connection that produces
audible clicks.
The offtrack values do not decrease
properly when jumping tracks, the jump
destination could not be found.
No valid subcode for approx. 230ms.
During start-up, the disc speed did not
reach 75% of the nom. speed within
approx. 6 seconds.
Uncorrectable audio error (EF error flag
from CD-Decoder).
The focus point could not be found
within approx. 10s (no valid TOC info),
resp. 30s (valid TOC info).
table2 – playback error analysis
Disc motor turns
clockwise
(accelerate)
Disc motor turns
counter-clockwise
(brake)
Slide moves
outside
Slide moves
inside
“NEXT”
depressed?
“PREV”
depressed?
“MODE”
depressed?
“PROG”
depressed?
N
Y
N
Y
N
Y
N
Y
Disc motor turns
clockwise
(accelerate)
Disc motor turns
counter-clockwise
(brake)
ATTENTION: FROM THIS TEST ONWARDS THE
LASER IS SWITCHED ON !!
→ AVOID DIRECT EXPOSURE TO BEAM !!
test pattern 1 (all segments activated)
“PREV”
depressed?
RADIAL TEST
• On track status
“ R” = on track
“-R” = not on track
• Disc speed status
“ D” = speed OK
“-D” = speed error
• Focus status
“ F
x” = focus OK
“-F
x” = focus error
x = focus sensitivity
DISC MOT. TEST
• Disc speed status
“ D” = speed OK
“-D” = speed error
• Focus status
“ F
x” = focus OK
“-F
x” = focus error
x = focus sensitivity
(see table3)
FOCUS TEST
• Focus status
“ F
x” = focus OK
“-F
x” = focus error
x = focus sensitivity
(see table3)
Note: If focus has
been lost, focus
start-up procedure
is entered (ramping).
SERVO TEST
Display shows:
“CD
xy”
• State of switches
x = door switch
y = inner switch
“0” = closed
“1” = open
test pattern 2 (alternate segments activated)
Display shows
keycode
(see table1)
Display shows
keycode + “RC”
(see table1)
key on
remote control
depressed?
key on
CD-player
depressed?
N
YY
EXP50xEXP30x
DSP TEST
Display shows
“0 dSP” resp.
“DSP-TEST 0”
DRAM TEST
Display shows
“drc” resp.
“DRAM-CHECK”
Display shows
“P drc” resp.
“DRAM OK” +
DSP version
(i.e.
“t-25”)
Display shows
“F drc” resp.
“DRAM ERROR” +
DSP version
(i.e.
“t-25”)
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