Philips FW-V320/21M Service Manual page 19

SERVICE TESTPROGRAM
MAIN
PLAY & CD3 buttons
plugging mainscord in.
S-FWR55-VXX
DISPLAY TEST QUARTZ TEST
N N
DISPLAY button SEARCH 5 button
pressed?
Y
Tact frequency µ P
(divided 32kHz)
Display shows all
segments and flags
in dimmed mode
512Hz can be measured
for checking open circuits.
on pin 19 of Front-µP
see figure 1
All LEDs
except the blue ones
SEARCH 5 button
are switched on.
Tact frequency µ P
(divided 10MHz)
N
DISPLAY button
pressed?
1220Hz can be measured
on pin 19 of Front-µP
Y
Display shows
segments and flags
as shown in Fig. 2
for checking short circuits.
All LEDs
except the blue ones
are switched off.
N STOP button
pressed?
Y
PRESET ALBUM PLAYLIST CD TEXT EDIT
STEP TOTAL TRACK TIME TOTAL REM REC
Fig. 1
3-14
To enter Service
* To leave Service Testprogram plug mains cord off.
Testprogram hold
depressed while
S-FWR55
stands for Service mode on FW-R55
Display shows
S-FWR33
stands for Service mode on FW-R33
version number
of the µP - software.
VXX
stands for version number
of the software used in the
Front µP.
EEPROM TEST
pressed?
Y
Display shows Testpattern is written to
32K
N
N
pressed?
Y
Display shows
Display shows
10M
ERR
STOP button
N
STOP button
pressed?
pressed?
Y
Y
TRACK AM PM
TRACK TIME TRACK
EEPROM CLEAR
N CD TEXT button
PROGRAM button
pressed?
pressed?
Y Y
Load default data !
Display shows
an address
and NEW
read back again
for 2 second
This test should only be used to clear
the EEPROM in case of a µP-"hangup".
Test ok?
Attention: all data are set to default values,
BLACK BOX data are not cleared.
Y
Display shows
PASS
N
CD AM
TOTAL REC TIME
Fig. 2
3-14
TEMPERATURE TEST
N AUX button N
pressed?
Y
Display shows
NTC XXXX
XXXX = value in mV
Source = AUX
STOP button
N
pressed?
Y
To check he temperature of he mains transformer under load.
Apply an audio signal to AUX.
Note: Very first sets will display °C instead of a voltage value.
Millivolts are always displayed with 4 digits,
while °C are displayed with 2 or 3 digits.
Action Display
Software reduces output power
< 1670
Software switches set in Stand by
< 1470
Set key Code
DISC CHANGE 0
OPEN / CLOSE CD 1
Stand By / ON 2
ECO POWER 3
DISPLAY / RDS 4
CDR 5
CD1 6
CD2 7
CD3 8
CLOCK / TIMER 9
TUNER 10
AUX 11
wOOx ON / OFF 12
wOOx LEVEL 13
for FW-R55 only
MAX SOUND 13
for FW-R33 only
OPEN / CLOSE CDR 14
PROG 15
KEY TEST
FFWD 6 button
N
pressed?
Y
Display shows
KEY --
Numbers acc. table 1
are indicated as long as a
button is held depressed.
If a button is pressed
on the Remote Control
KEY RC is shown
and the ; flag flashes.
STOP button
N
pressed?
Y
Temp.
>104°C
>128°C
Set key Code
STOP exit Test
NO / CANCEL 17
1 SEARCH BKW
18
¡ SEARCH FWD
19
YES / ENTER 20
3 PLAY
21
REC LEVEL 22
CD TEXT / EDIT 23
COPY CD 24
COMPILE CD 25
7 RECORD
26
FINALIZE 27
ERASE 28
INCREDIBLE SURROUND 29
DSC 30
VAC 31
Table 1
FW-R55 Service Testprogram Main 2001 06 12