Service Testprogram; Various Tests - Philips CDR796 Service Manual

SERVICE TESTPROGRAM

VARIOUS TESTS

END-USER DIAGNOSTICS
(CDR module)
To enter
END-USER DIAGNOSTICS
hold S & T buttons
on CDR side depressed
while plugging mainscord in.
DISPLAY TEST
N
DISPLAY button
pressed?
Display shows for 5s each:
• Software version of set P
S-CDR795-VXX
Display shows
all segments and flags
S
stands for Service mode for checking open circuits.
VXX see figure 1
stands for Version
number of the software used
All LEDs are switched on.
in the Front (Display) P.
• Software versions of the
CDR module:
MOXXXX BXXXX N STOP button
pressed?
MOXXXX stands for
Software version of
MOZART flash ROM 7101
BXXXX
stands for
Software version of
Basic Engine
flash EPROM 7017
SDRAM TEST 7100
Display shows:
DTST1
CHECKSUM TEST 7101
Display shows:
DTST2
ERASE TEST 7101
Display shows:
DTST3
COMMUNICATION TEST
(UART-BUS)
Display shows:
DTST4
N Y
TEST O.K.?
Display shows
NEW
for 2s.
EEPROM is cleared
and default values
are stored.
Display shows: Display shows:
FAILED PASSED
for 3s. for 3s.
EXIT
END-USER DIAGNOSTICS
5-7
SERVICE TESTPROGRAM
VARIOUS TESTS
QUARTZ TEST KEY TEST
N
SPEED button
pressed?
Y Y
Tact frequency P
(divided 10MHz)
Display shows
10M
1220 37Hz can be measur.
on f (pin 23 of P).
0
STOP button
N
pressed?
Y
Y
STEP ALBUM PLAYLIST MP3 TIME TRACK
REP TRACK DISC ALL PROG SHUFF
CD PLAYER
L
1X 2X DIG LINE
4X 8X OPTMIC
R
fig. 1
To enter Service
Testprogram hold
PLAY & REC buttons
depressed while
plugging mainscord in.
Display shows
version number
of the P - software.
S-CDR795-VXX
FORMAT EEPROM
N N
SHUFFLE button
CD ALBUM - button
pressed?
pressed?
Y Y
Display shows Display shows
KEY -- NEW
Numbers acc. table 2
for 2s.
are indicated as long as a
EEPROM is cleared and
button is held depressed. default values are stored.
If a button is pressed
on the Remote Control
KEY RC is shown
This test should only be used to clear
and the ; flag flashes.
the EEPROM in case of a P-"hangup".
Attention: all data are set to default values,
BLACK BOX data are not cleared.
N
CD STOP button
pressed?
Y
TOTAL REM REC TRACK TIME
CD RECORDER
CDTEXT CD R W
REC
EDIT FINALIZE
5-7
* To leave Service Testprogram plug mains cord off.
* In the main menu the sound settings (volume, ...)
and trays work as in normal mode.
S
stands for Service mode
VXX
stands for Version number
of the software used in the
Front (Display) P.
EEPROM TEST
N
INPUT button
pressed?
Y
Testpattern is written to
address 1
and
read back again
N
Test ok?
Y
Display shows Display shows
ERR PASS
STOP button
N
pressed?
Y
KEY CODES
KEY KEY CODE KEY KEY CODE
OPEN/CLOSE
0 ERASE CD 12
(CD)
PLAY/PAUSE
STANDBY 1 13
(CDR)
STOP
SPEED 2 14
(CDR)
PLAY/PAUSE
ALBUM -
3 15
(CD)
(CDR)
STOP
ALBUM +
4 (exit) 16
(CD)
(CDR)
ALBUM - S
5 17
(CD)
(CDR)
ALBUM + T
6 18
(CD) (CDR)
S
7 RECORD 19
(CD)
T
8 COPY CD 20
(CD)
OPEN/CLOSE
DISPLAY 9 21
(CDR)
SHUFFLE 10
INPUT 11
table 2
TEMPERATURE
(NTC) TEST
STANDBY button N
pressed?
Y
Display shows
NTC XX
XX = value in C
N N
STANDBY button STOP button
pressed? pressed?
Y Y
Fan is switched on/off
display shows
FAN ON
or
FAN OFF
for 2s.
CDR79x servtest various, 240402