Philips MCW770, Руководство по обслуживанию

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5-4 5-4
SERVICE TESTPROGRAM
PART 2
MCW770 servtest 2, 170704
N
Y
KEY TEST
Display shows
Numbers acc. table1
are indicated as long as a
button is held depressed.
If a button is pressed
on the Remote Control
RC is shown
and the ; flag flashes.
3
button
pressed?
STOP button
pressed?
N
Y
10
PLAY
2;
T
CD4
CD3
S
WL PC LINK
KEY KEY CODE
2
3
4
5
6
7
8
9
12
15
11
9
(exit)
14
13
16
HOME
SOURCE
OPEN/CLOSE
CD5
CD2
CD1 ALBUM -
4
1
STANDBY-ON
ALBUM +
3
KEY
STEP
IIC 1
IIC 2
IIC 3
IIC 4
IIC 5
IIC 6
IIC 7
IIC 8
IIC 9
IIC 10
IIC 11
IIC 12
IIC 13
IIC 14
IIC 15
IIC 16
IIC 17
exit
BASS set to
≤
0dB --> BASS ALC=off
Tuner, WESSLI board respectively the CDC module are not switched on in these steps.
To check the inputs a signal has to be fed directly to Combi board, sockets 1013, 1022
respectively 1015
AUX 0dB 0dB -20dB
AUX 0dB 0dB -20dB on
on
on
AUX 0dB 0dB -20dB
AUX 0dB 0dB -20dB
TUNER
3) 0dB 0dB -20dB
PC LINK 3) 0dB 0dB -20dB
CD 3) 0dB 0dB -20dB
AUX +2dB +3dB -20dB
AUX 0dB +3dB 0dB
AUX +6dB -6dB -18dB
AUX +4dB +1,5dB -18dB
AUX
step 13 to 17 are intended for factory tests only
0dB 0dB -20dB
AUX 0dB 0dB -20dB
SOURCE BASS TREBLE VOLUME IS MUTE
KEY CODE
KEY CODES
table 1
KEY --
N
Y
ROTARY ENCODER
TEST
COMBI BOARD (I 2 C)
TEST
VOLUME KNOB
turned ccw?
Display shows the
actual volume level
for 2s.
N
Y
VOLUME KNOB
turned cw?
VOLUME XX
N
Y
Display shows
Sound ICs are set
acc. table 3
Switch to next step acc.
table 3
IIC 1
VOLUME XX
Y
TUNER TEST
N
Display shows version
of tuner board for 3s.
DISC 3 button
pressed?
DISC 4 button
pressed?
Service Preset-frequencies
acc. table 2 are copied
to the RAM.
Tuner is normal working
except for the PROGRAM
button. Volume is set
to -20dB.
When a Stereo signal is
received the stereo flag
K
will light up.
When RDS data are
received R.D.S will light up.
POWER
switched off?
N
Y
Exit Service Testprogram
EUR
Y
Y
STOP button
pressed?
N
Y
DISC 4 button
pressed?
Last step acc.
table 3 reached?
N
N
Display shows the
actual volume level
for 2s.
table 3
3)
* To leave Service Testprogram plug mains cord off.
* In the main menu the sound settings (volume, ...)
and trays work as in normal mode.
stands for Service mode
stands for Version number
of the software used in the
Front (Display) µP.
To enter Service
Testprogram hold
2;´
& HOME buttons
depressed while
plugging mains cord in.
S-VXX
The display shows.
V XX
S
ADC1 255
N
Y
TEMPERATURE TEST
(Transformer NTC)
Display shows
ADC 1 input is not relevant
for MCW770.
Press
2;
again.
ADC2 XX
Display shows
XX = temp. in ˚C
2;
button
pressed?
button
pressed?
N
Y
N STOP button
pressed?
When the value exceeds 138˚C, the temperature
of the set is detected as too high and in turn the
set will be switched to Standby mode.
This can also be caused by the
Overvoltage Protection
circuit, switching the NTC line to ground.
1)
1)
e.g.
EUROPE
FM/MW
USA
FM/AM
OVERSEAS
FM/MW
2) To toggle frequency grid hold ALBUM+
3
& HOME buttons depressed while plugging mains cord in.
Display will show either or for 2 s.
108 MHz
table 2
REGION
PRESET
1
2
3
4
5
6
7
8
9
10
11
87,5 MHz
108 MHz
531 kHz
1602 kHz
558 kHz
1494 kHz
98MHz
98/87,5MHz
87,5/98MHz
65,81 MHz
108 MHz
560 kHz
1500 kHz
98 MHz
87,5 MHz
530 kHz
1700 kHz
87,5 MHz
530/531 kHz
1700/1602 kHz
560/558 kHz
1500/1494 kHz
2)Grid switchable
10-100kHz/9-50kHz
/22 /37 /21
SERVICE PRESET FREQUENCIES
TEST STEPS COMBI BOARD I
2
C TEST
EUR
GRID 9 GRID10
EAS OSE