Table of Contents
Advertisement
QQ
3 7 63 1515 0
1 Cut the eleven melted-connection points with a cutting plier.
TE
L 13942296513
SELF-DIAGNOSIS
This model has the self-diagnosis function for the VIDEO and AUDIO decoder sections.
Connecting to the LED between TP522 and TP523 on the VIDEO BOARD.
Immediately after the power on, the self-diagnosis function searches each operation of IC's around the mechanism control microcomputer
(IC701). and TP5
The results can be checked by LED of the VIDEO board.
Oscilloscope (Waveform)
Light
2 time blinking
3 time blinking
www
.
4
http://www.xiaoyu163.com
SECTION 1
SERVICE NOTE
2 Panel board
Symptom
H
No error
L
H
MPEG decoder (IC505)
error
L
H
MPEG decoder (IC505)
or
L
DRAM (IC507) error
x
ao
u163
y
i
http://www.xiaoyu163.com
2 9
8
Note for installing the panel board
Hot melt
Screw hole
Attach the panel board with
six screws (+BVTP 2.6 × 8 )
after the board is removed once.
Do not tighten the screws excessively.
Q Q
3
6 7
1 3
1 5
[VIDEO BOARD] (SIDE A)
TP523 TP522
LED
co
.
9 4
2 8
0 5
8
2 9
9 4
2 8
100
91
1
90
IC505
32
65
33
64
m
9 9
9 9
Hide quick links:
Advertisement
Table of Contents
