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SERVICE TEST PROGRAM – FLOW CHART
"VOL-"
"NEXT"
"FM"
N
N
pressed?
pressed?
pressed?
Y
Y
Y
PLAYBACK TEST
KEY TEST
TUNER TEST
Close CD-door &
Display shows
Display shows
press "PLAY"
"Key --"
"FM USA" or
"FM EUROPE"
Error during
N
key held
N
playback?
depressed?
"FM"
Y
pressed?
Y
Display shows
Display shows
error-code
Y
keycode
(see table1)
(see table2)
Tuner functional
test with presets
(see table3)
N
EXIT
Fatal error?
SERVICE TEST
PROGRAM
Y
Stop playback
EXIT
SERVICE TEST
PROGRAM
table2 – key test
DISPLAY
KEY ON SET
PLAY
Key 05
NEXT
Key 06
PREVIOUS
Key 07
VOLUME +
Key 12
table3 – tuner preset frequencies
VOLUME –
Key 13
PRESET
KEY ON CORD-RC
DISPLAY
01
Key 01 RC
DBB
02
Key 02 RC
PROGRAM
03
MODE
Key 03 RC
04
PLAY
Key 05 RC
05
NEXT
Key 06 RC
06
PREVIOUS
Key 07 RC
07
ALBUM UP
Key 09 RC
08
ALBUM DOWN
Key 10 RC
09
VOLUME +
Key 12 RC
10
Key 13 RC
VOLUME –
Disconnect the AC/DC adaptor and
Press "FM" to exit the key test.
remove batteries to exit the tuner test.
3-5
"VOL+"
N
pressed?
Y
RAM/ROM TEST
Display shows
"EEP / DRAM"
"VOL+"
pressed?
"NEXT"
"PREV"
N
N
N
depressed?
depressed?
Y
Y
Y
save original
EEPROM data
"C USA"
"C EUROPE"
Set version USA
Set ver. EUROPE
(FM grid=100kHz)
(FM grid=50kHz)
write & read back
EEPROM
test pattern
read patt. =
written patt.
?
Y
Display shows
"PASS"
Restore original
EEPROM data
"PLAY"
pressed?
Y
Format EEPROM
with default values
Display shows
"NEW"
FREQUENCY
87.5MHz
108.0MHz
98.0MHz
"FM"
n/a
pressed?
n/a
n/a
Y
n/a
n/a
n/a
n/a
MAIN MENU
N
N
"VOL–"
N
pressed?
Y
write & read back
DRAM test patt.
2 times
read patt. =
N
N
N
N
written patt.
?
Y
Display shows
Display shows
Display shows
"ERROR"
"PASS"
"ERROR"
"FM"
N
pressed?
Y
N
"FM"
N
pressed?
Y
N
3-5
To enter the service test program
PRELIMINARY
1. Disconnect the AC/DC adaptor and remove batteries
SETUP
2. Open the CD-door
3. Hold "PLAY" & "NEXT" buttons depressed
4. Connect the AC/DC adaptor or insert batteries
Display shows
software-version
(e.g. "S-1201")
"PLAY"
N
pressed?
Y
SERVO TEST
Display shows:
"SER Dx Ix"
• State of switches
Dx = door switch
Ix = inner switch
"0" = closed
"1" = open
"PLAY"
"NEXT"
"PREV"
N
N
N
pressed?
depressed?
depressed?
Y
Y
Y
Slide moves
Slide moves
outside
inside
FOCUS / DISC
SPEED TEST
• Focus status
ATT: FROM THIS TEST ONWARDS
"F+" = focus OK
THE LASER IS SWITCHED ON !!
"F–" = focus error
• Disc speed status
AVOID DIRECT EXPOSURE
"D+" = speed OK
TO BEAM !!
"D–" = speed error
"PLAY"
"DBB"
"MODE"
N
N
N
and focus OK
and speed
pressed?
pressed?
OK?
Y
Y
Y
Toggle focus
Toggle
sensitivity
disc speed
(see table4)
(see table5)
RADIAL TEST
• Focus status
"F+" = focus OK
"F–" = focus error
table4 – focus sensitivity
• Disc speed status
"D+" = speed OK
DBB FLAG
"D–" = speed error
• On track status
"R+" = on track
"R–" = not on track
"NEXT"
"PREV"
N
N
depressed?
depressed?
table5 – disc speed
BATTERY FLAG
Y
Y
CUE-MODE
REVIEW-MODE
Track servo jumps
Track servo jumps
16 tracks forwards
16 tracks backw.
"VOL +"
"VOL –"
N
N
depressed?
depressed?
Y
Y
Disc motor
Disc motor
accelerates
brakes
clockwise
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 SPEED
(% of single speed)
100%
200%
350%
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