Sharp Aquos LC-45GD1E, Руководство по обслуживанию

Страница: 58 / 281

58
TU-45GD1E
LC-45GD1E
No picture (5)
Is OSD including the menu and the list of programs displayed in the panel? No digital broadcasting displayed in the panel of the liquid crystal TV
.
<On input of the digital tuner>
NO
Is the digital signal including Data and CLK output to Pins (2-1
1)(13) of P8903?
NO
Check P8903 thru IC8601, IC8601, IC8801 thru 8802, IC8804 thru 8805 and peripheral circuits.
Are there no problems with voltage at Pin (2) of
TU9001 (5V) and Pin (50) and Pin (64) of
IC9008 (1.8V and 3.3V) respectively?
Is voltage at pin (2) (3) of CB-Connector P9001 not lower than 10V?
NO NO
Check the
POWER UNIT
(RDENCA1
1
1WJZZ).
Is the DTV
-IN signal input to Pins (190-200)
of IC402 (3D-YC)?
NO
Check IC402 thru SC2101.
NO
Confirm peripheral circuits of
TU9001, and
try to replace
TU9001.
Check IC9001 thru 9002, IC9009 thru 9014, IC9004 and peripheral circuits. Is the VIDEO signal output to Pins (124- 133) of IC402?
NO
Check IC402 and peripheral circuits.
YES YES
YES YES YES
YES
Is 4MHz CLK output from Pin (10) of TU9001?
Check the signal of
TU9001 thru IC9008
and IC8601 thru IC9008, and peripheral circuits.
YES
Check circuits IC802/IC3300/IC3201 and peripheral ones.
Set-up Confirmation : 1) Is the "INPUT
SOURCE" ( ) of the remote controller set up correctly?
•••
See the Operation Manual and set the "INPUT
SOURCE" to "DTV".
2) Is the "Audio Only" in MENU-Option set to "On"?
•••
Set it "Of
f".
IC9008 (DECODER) IC8601 (PROCESSOR) IC8801 (128M-SDRAM) IC8802 (128M-SDRAM)
IC9001 (5.8V
-REG.)
IC9002 (3.3V
-REG.)
IC9004 (5V
-REG.)
IC9009 (9V
-REG.)
IC9010 (5V
-REG.)
IC9012 (1.8V
-REG.)
IC9103 (1.21V
-REG.)
IC9014(5V
-REG.)
IC802 (FPGA.) IC3300 (CIVIC) IC3201 (L
VDS-TX)
(DVB-T
UNIT)
(DVB-T
UNIT)
(MAIN UNIT)
TROUBLE SHOOTING TABLE
(Continued)