Advertisement
5.1.6 DETAILS
Self check is performed for the following items:
< Page 1 of screen >
Detection item
Display
Low bias line short
protection
Fan lock
Presence of sync signal
SYNC Confirmation of presence of video
AC power input
Main CPU
communication
Digital tuner
Main memory
AV select switch
AVSW Same as above.
3 dimensions YC
separator
Multi sound process
RF tuner
Ghost reduction
DIST process
RGB process
DVI (Digital communication)
Digital input
HDMI Confirmation of reply of ACK signal which uses
1-26 (No.YA301)
Detection content
LOB
Confirm the operation of the low bais
(5V / 9V) protection circuit.
Q9801,
Q9802
[REGULATOR PWB]
FAN
Not used.
sync signal.
M : Main sync signal
S : Sub sync signal
HD : Component sync signal
IC201
[ANALOG SIGNAL PWB]
TIM
Not used.
MSM
Confirmation of ACK (response)
signal which uses sync communications with
Chassis CPU.
IC7601
[DIGITAL SIGNAL PWB]
DIG
Not used.
MEM
Confirmation of reply of ACK signal
2
which uses I
C communication.
IC7602
[DIGITAL SIGNAL PWB]
IC301,
IC501
[ANALOG SIGNAL PWB]
YC
Same as above.
IC1001
[DIGITAL SIGNAL PWB]
AIO
Same as above.
IC1140
[RECEIVER PWB]
TUN
Same as above.
TU3001
[RECEIVER PWB]
GCR
Not used.
IP
Confirmation of reply of ACK signal which uses
2
I
C communication.
IC3001
[DIGITAL SIGNAL PWB]
RGB
Not used.
DVI
Not used.
2
I
C communication.
Diagnosis
Detection timing
signal (line)
LB_PRO
Detection starts 3 seconds after
the power is turned on.
If error continues between 400ms
the power is turned off.
---
---
SDA
Confirmation of presence of sync
signal in video signal.
---
---
WAKE
If it checks whenever sync
communication with SHM
performed and no reply of ACK
signal an error will be counted.
---
---
SDA
If it checks whenever I
communication is performed and
no reply of ACK signal an error will
be counted.
SDA
Same as above.
SDA
Same as above.
SDA
Same as above.
SDA
Same as above.
---
---
SDA
If it checks whenever I
communication is performed and
no reply of ACK signal an error will
be counted.
---
---
---
---
SDA
If it checks whenever I
communication is performed and
no reply of ACK signal an error will
be counted.
2
C
2
C
2
C
Advertisement
