Test Successfull; Test Fails; P50 Loop-Back Test - Yamaha DVD-S520 Service Manual

DVD-S520/DV-S5450
In this example 23 is the hexidecimal code of the pressed RC
key. The user can leave the remote-control test by pressing
NEXT on the local keyboard of the DVD player. The remote
control test is successful if a code was received before the
user pressed the NEXT key; pressing the NEXT key before
pressing a key on the remote control gives an error in the
remote control test (note that the remote control test will also
fail if a key on the remote control was pressed but no code
was received). The remote control test does not check upon
the contents of the received code, that is it will not be checked
if the received code matches the key pressed. If desired, the
user can manually check this code by using a code-table for
the remote control key-codes.
RC Key id
POWER /
1
2
3
4
5
6
7
8
9
RETURN/RESUME
0
BIT RATE
MENU
CURSOR UP
ON SCREEN
CURSOR LEFT
OK
CURSOR RIGHT
PREVIOUS
CURSOR DOWN
NEXT
STOP
PLAY
PAUSE
SUBTITLE
ANGLE
ZOOM
AUDIO
REPEAT
A/B REPEAT
SHUFFLE
SCAN
13
Hexadecimal code
C
1
2
3
4
5
6
7
8
9
83
0
EF
54
58
82
5A
5C
5B
21
21
20
31
2C
30
4B
85
F7
4E
1D
3B
1C
2A
Figure 7
After pressing NEXT, the result of the remote control test
is displayed on the local display of the DVD player as
follows:
Figure 8
Or
Figure 9
Pressing NEXT on the local keyboard again will proceed to
the next test.

1.5 P50 Loop-Back Test

For the P50 loop-back test, the user must first press a key
to decide if the test is to be performed.
The display will show the following message:
Figure 10
If the user presses PAUSE, the P50 test will be skipped.
If the user presses PLAY, the P50 test is performed and
the result is displayed as follows:

Test successfull:

Figure 11

Test fails:

Figure 12
Press the NEXT key to continue to the next text
2 MONO PCB DIGITAL PART
2.1 PICTURE TEST
The picture test is performed by putting a predefined
p i c t u r e ( c o l o u r b a r ) o n t h e d i s p l a y ( n u c l e u s