table2 – key test
DISPLAY
Key 05
Key 06
Key 07
Key 12
Key 13
DISPLAY
Key 01 RC
Key 02 RC
Key 03 RC
Key 05 RC
Key 06 RC
Key 07 RC
Key 09 RC
Key 10 RC
Key 12 RC
Key 13 RC
KEY ON SET
PLAY
NEXT
PREVIOUS
VOLUME +
VOLUME –
KEY ON CORD-RC
DBB
PROGRAM
MODE
PLAY
NEXT
PREVIOUS
ALBUM UP
ALBUM DOWN
VOLUME +
VOLUME –
Press “FM” to exit the key test.
table3 – tuner preset frequencies
FREQUENCY
87.5MHz
108.0MHz
98.0MHz
n/a
n/a
n/a
n/a
n/a
n/a
n/a
PRESET
01
02
03
04
05
06
07
08
09
10
Disconnect the AC/DC adaptor and
remove batteries to exit the tuner test.
table5 – disc speed
BATTERY FLAG DISC SPEED
(% of single speed)
100%
200%
350%
PRELIMINARY
SETUP
EXIT
SERVICE TEST
PROGRAM
Display shows
software-version
(e.g. “S-1201”)
KEY TEST
Display shows
“Key --”
PLAYBACK TEST
Close CD-door &
press “PLAY”
To enter the service test program
1. Disconnect the AC/DC adaptor and remove batteries
2. Open the CD-door
3. Hold “PLAY” & “NEXT” buttons depressed
4. Connect the AC/DC adaptor or insert batteries
CUE-MODE
Track servo jumps
16 tracks forwards
“NEXT”
pressed?
“VOL-”
pressed?
“PLAY”
pressed?
“PLAY”
pressed?
Error during
playback?
“PLAY”
and focus OK
and speed
OK?
“NEXT”
depressed?
REVIEW-MODE
Track servo jumps
16 tracks backw.
Fatal error?
Display shows
error-code
(see table1)
Slide moves
outside
Slide moves
inside
Disc motor
brakes
“NEXT”
depressed?
“PREV”
depressed?
“VOL +”
depressed?
“VOL –”
depressed?
Stop playback
MAIN MENU
N
Y
N
Y
N
Y
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 table4)
“DBB”
pressed?
N
Y
N
Y
“PREV”
depressed?
N
Y
N
Y
EXIT
SERVICE TEST
PROGRAM
“VOL+”
pressed?
N
Y
Y
N
read patt. =
written patt.
?
N
table4 – focus sensitivity
DBB FLAG FOCUS SENSITIVITY
Normal focus sensitivity for
CDDA and CD-R
Low focus sensitivity for
high-reflective CD-RW
High focus sensitivity for
low-reflective CD-RW
Disc motor
accelerates
clockwise
“MODE”
pressed?
N
Y
Toggle
disc speed
(see table5)
ATT: FROM THIS TEST ONWARDS
THE LASER IS SWITCHED ON !!
→ AVOID DIRECT EXPOSURE
TO BEAM !!
“PREV”
depressed?
RADIAL TEST
• Focus status
“F+” = focus OK
“F–” = focus error
• Disc speed status
“D+” = speed OK
“D–” = speed error
• On track status
“R+” = on track
“R–” = not on track
FOCUS / DISC
SPEED TEST
• Focus status
“F+” = focus OK
“F–” = focus error
• Disc speed status
“D+” = speed OK
“D–” = speed error
SERVO TEST
Display shows:
“SER Dx Ix”
• State of switches
Dx = door switch
Ix = inner switch
“0” = closed
“1” = open
Display shows
keycode
(see table2)
write & read back
EEPROM
test pattern
key held
depressed?
Y
TUNER TEST
Display shows
“FM USA” or
“FM EUROPE”
“FM”
pressed?
N
Y
N
Tuner functional
test with presets
(see table3)
“C USA”
Set version USA
(FM grid=100kHz)
“C EUROPE”
Set ver. EUROPE
(FM grid=50kHz)
“FM”
pressed?
Y
Display shows
“PASS”
Display shows
“ERROR”
Format EEPROM
with default values
Y
N
read patt. =
written patt.
?
N
Display shows
“PASS”
Display shows
“ERROR”
write & read back
DRAM test patt.
2 times
“PLAY”
pressed?
N
Y
“VOL+”
pressed?
N
Y
“VOL–”
pressed?
Y
“FM”
pressed?
N
Y
“FM”
pressed?
N
“FM”
pressed?
Display shows
“NEW”
RAM/ROM TEST
Display shows
“EEP / DRAM”
save original
EEPROM data
Restore original
EEPROM data
“NEXT”
depressed?
SERVICE TEST PROGRAM – FLOW CHART
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