Philips MCM761/12/61, Руководство по обслуживанию, Страница: 11 / 37

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