Service Test Program - Philips MCM761/12/61 Service Manual

SERVICE TEST PROGRAM

TUNER QUARTZ
TEST
TEST
TAPE
N
TUNER
Button pressed?
Button pressed?
Y Y
Display Tuner Version
Display shows
"ccc"
32K
Output at (Display Board)
pin 19 of uP = 2048Hz
N
TUNER
Button pressed?
TAPE
Button pressed?
Y
Service frequencies are
Y
copied to the RAM (see Table 1)
Tuner works normally except:
Display shows
PROGRAM button
12M
Output at (Display Board)
pin 19 of uP = 2,929.6875Hz
N
Disconnect
Mains cord ?
9
Button pressed?
Y
Y
Service Mode left
Europe East Europe East Eur. Extended-band
PRESET "EUR" "EAS" "EAS"
1 87.5MHz 87.5MHz 65.81MHz
2 108MHz 108MHz 108MHz
3 531kHz 531kHz 74MHz
4 87.5MHz
1602kHz 1602kHz
531kHz
5 558kHz 558kHz
1602kHz
6 1494kHz 1494kHz
558kHz
7 87.5MHz 87.5MHz
1494kHz
8 87.5MHz 87.5MHz
98MHz
9 87.5MHz 87.5MHz
70.01MHz
10 87.5MHz 87.5MHz
65.81MHz
11 98MHz 98MHz
Table 1
Note: * Depending on the selected grid frequency (9 or 10kHz).
By holding the ECO and TUNER buttons depressed while switching on the Mains supply,
one of the undermentioned features will be activated:
- the tuning grid frequency is toggled between 9kHz and 10kHz for the Oversea (/98) version.
- the extended FM1 (65.81MHz - 74MHz) is toggled on and off for East Eur. version.
3-1
To start service test program
hold PREVIEW & PLAY
buttons depressed while
plugging in the mains cord
and in standby status.
Display shows the
MP3-CD MODULE
TEST
N
N
CD (on RC)
Button pressed?
Y
Note : Disc should be available on the tray before entering the Service Test Mode.
MESSAGE
STEP DISPLAY
OKAY ERROR
1 CD USB -
Choose
N
level
by pressing
2 MO-Vnn -
on the RC
BITRATE
Q
3 -
TESTING
R
N
USA Oversea
"USA" "OSE"
87.5MHz 87.5MHz
108MHz 108MHz
530kHz 531/530kHz*
1700kHz 1602/1700kHz*
560kHz 558/560kHz*
1500kHz
1494/1500kHz*
98MHz
87.5/98MHz*
87.5MHz
87.5MHz
87.5MHz
87.5MHz
87.5MHz
87.5MHz
87.5MHz 98/87.5MHz*
Remark Full Display Pattern function is not available for no RDS version.
S refers to Service Mode
ROM version V refers to Version
"S-Vyy"
yy refers to Software version number of the uProcessor
(Main menu)
(counting up from 01 to 99)
ACTION
- Indicates the module used.
- Version of the MPEG software (nn = Version Number).
- Bit rate check
Press to exit.
9
LEDs Pattern 1 Pattern 2
ECO Off Off
CD On On
TUNER On Off
TAPE On On
AUX On Off
Volume Rotary On On
Table 2
Figure 1
Figure 2
3-1
DISPLAY
TEST
N
DIM or RDS
Button pressed?
Y
Display shows Figure 1
and switch all LEDs on
except ECO LED
(see Table 2 Pattern 1)
N
DIM or RDS
Button pressed?
Y
Display shows Figure 2
and switch alternate LEDs on
(see Table 2 Pattern 2)
N
9
Button pressed?
Y
TEST Activated with ACTION
E E P R O M T E S T T e t s p t a e t n r s w
"PASS" is displayed if the uProcessor read back the test patterns
to Exit correctly, otherwise "FAIL" will be displayed.
9
EEPROM FORMAT Load default data. Display shows "NEW" for 1 second.
S
TEST
Caution! All presets from the customer will be lost!!
Pressing this button will toggle between DEMO ON and DEMO
DEMO TOGGLE B II
OFF. The DEMO status will scroll once across the Display.
ROTARY Volume, Treble or Bass Display shows value for 2 seconds.
ENCODER TEST
Knob Values increases or decreases until Volume Maximum (0dB) or
Volume Minimum (VOL MUTE) is reached.
Disconnect
LEAVE SERVICE
mains cord
TEST PROGRAM
Various
other Tests
l l i b e s e t n o t h t e E E P R O M .