Philips MX-1050D, Service Manual

Page: 9 / 59

2-3 2-3
Pin
no.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Function
+12VT
+12VS
GND
GND
5VD
3.3V
5GND
GND
SDA
SCL
IRD2
5V RESET
GND
EXT BCLK
EXT DATA
EXT DATA
VALID
EXT PSTART/
ERROR
GND
NC
Voltage
DC/V
11.9V
11.9V
0V
0V
5.0V
3.2V
0V
0V
4.7V
4.8V
3.2V
4.7V
0V
1.56V
0.25V
0.35V
0V
0V
-
DVD Main Board Connector Data
1. DVD Main Board Conn. HX1
(To Mechanical Loader)
Note 1
3. DVD Main Board Conn. HS6
(To A/V Board)
Note 3
2. DVD Main Board Conn. JP1
(To PSU Board)
Note 2
4. DVD Main Board Conn. HS5
(To Front Board)
Note 4
Note:
1. When the voltages of conn. HX1 are as per table the problem in the Loader,
otherwise the problem is in the DVD Main board.
2. When the voltages of conn. JP1 are as per table the problem in the DVD Main board,
otherwise the problem is in the PSU board.
3. When the voltages of conn. HS6 are as per table the problem in the DVD Main board,
otherwise the problem is in the A/V board.
4. When the voltages of conn. HS5 are as per table the problem in the DVD Main board,
otherwise the problem is in the Front board.
Pin
no.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Function
12V
5VA
16/9
4/3
5VD
GND
RED
GREEN
BLUE
GND
GND
CVBS
C
Y
GND
SPDIF
GND
Voltage
DC/V
11.9V
5V
4V
0V
5.0V
0V
3.2V
3.2V
3.2V
0V
0V
0.73V
0.52V
0.67V
0V
1.6V
0V
Pin
no.
1
2
3
4
5
6
7
8
9
10
Function
NC
3.3V
5VD
GND
GND
5VA
12V
5GND
12VS
12VT
Voltage
DC/V
-
3.2V
5.1V
0V
0V
5.0V
11.9V
0V
11.9V
11.9V
Pin
no.
1
2
3
4
5
6
Function
GND
CTS
RTS
TXD
RXD
5VD
Voltage
DC/V
0V
0V
0V
3.0V
4.9V
4.9V
F
Check the Disc
for dust or damage
Check DVD Loader
power supply: DVD BD HX1
Pin5=5.2V, Pin6=3.3V,
Pin1=8V, Pin2=12V,
Pin12=5V
Check DVD BD HX1
Pin14-X.BCLK, Pin15-X.DATA,
Pin16-X.DATAVALID, Pin17-X.ERROR
data and circuit connection
No
No
Yes
Possible DVD BD CPU* damage
Replace DVD BD
Possible DVD Loader damage
Replace Loader & test again
No
Yes
No
Repair power supply circuit
Change to other Disc
Cannot read the disc
or Intermittent
Check the Disc
is off center or not
Yes
E
Mechanical noise
during playing disc
Reset the Disc
into the center
Check is there
something inside the
DVD Loader or not
Yes
Open the tray
& check it out
No
No
Possible DVD Loader damage
Replace the DVD Loader
Tray cannot open
D
No
Yes
Check B600
Connector
Pin1,2=+/-6VDC
Possible Tray motor defective.
Proceed to open tray manually
(see Chapter 3)
Replace the DVD Loader
Check DVD BD IC60/LB1641
Pin7/Vcc=11.8VDC, Pin6/OUT=3.1VDC,
Pin5/IN=3.1VDC,
Pin7=0V During the tray is open or close
Yes
Repair Motor
Driver Circuit
No
Check DVD BD HS5
Connector
Pin4 T_D=3.1VDC
Pin 5 R_D=3.1VDC
Yes
Check
Front BD CPU
U5/Pin21, 22
No
Check
CPU*/Pin5/SLIDER_OUT
CPU*/Pin6/SLIDER_IN
CPU*/Pin7/SLIDER_OPEN/CLOSE
Circuit
Repair the
circuit
connection
No
Possible CPU* damage
Replace DVD BD
MX10xxD Repair Chart
DVD Section
D J B
Tray cannot
opern
Video output
No Signal
(see page 10-2)
No Sound
Digital no output
E F
Cannot read
Disc or
Intermittent
Mechanical
Noise
C H G
No sound &
picture
(see page 10-2)
DVD no
Function
No Sound
Analog no output
*Note: BD = Board
CPU = DVD BD ICS1/STi5505
DVD BD = DVD Main Board
MX10xxD REPAIR CHART - DVD SECTION