Sanyo DP26649 Service Manual page 4
Remote control digital color television
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Also See for DP26649:
- Owner's manual (48 pages) ,
- Setup manual (2 pages) ,
- Service manual (40 pages)
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Repair Flow Chart: Trouble Condition
Green Power LED and LCD backlights are on,
but no video or OSD.
LCD Backlights are ON.
But, TV has no video or OSD.
On Main Bd.:
Are the 12V and 24V supplied
from Pwer Bd.?
(see TABLE*1)
yes
Is power to T-CON supllied
from Main Bd.?
(see TABLE*2)
yes
Is LVDS Clock outputed?
(see TABLE*3)
yes
Confirm LVDS cable connection.
And check for video/OSD again.
T. Cnt. Bd. or LCD Panel is not working.
1st: Replace "T. Cnt. Bd. & LVDS Cable".
If T. Cnt. Bd. & LVDS Cable does not
correct problem, then:
2nd: Replace "LCD Panel"
(TABLE *1) Main Bd.: 12V & 24V Test Points
Model
US1J 26", 32"
US1K 42", 46"
Model
US1J 26", 32"
US1K 42", 46"
(TABLE *2) Main Bd.: "T-CON Power supply" Test Points
Model
US1J 26", 32"
US1K 42", 46"
(TABLE *3) Main Bd.: "LVDS Clock" Test Points
Model
US1J 26", 32"
US1K 42", 46"
no: 0V
Replace "Power Bd."
and "Wire harness".
no: 0V
Main Bd. is not working.
Replace "Main Bd."
no: 0V or 1.1V constant
Main Bd. is not working.
Replace "Main Bd."
12V on Main Bd.
Main K8B "8pin"
or
Main K8B "8pin"
or
24V on Main Bd.
Main K8B "12pin"
or
Main K8B "12pin"
or
Power ON/OFF SW on Main Bd.
Main K5LV "29pin"
or
Main K5LVDS "36pin"
or
LVDS Clock on Main Bd.
Main K5LV "29pin"
Main K5LVDS "12pin"
Confirmation Voltage
Main L1604
Main L1604
Confirmation Voltage
Main L1712
Main L1613
42"(00 ver) = 24V, 42"(01 ver) = 15V, 46" = 16V
Confirmation Voltage
Main RB6301
Main L6309
Confirmation Voltage
About 70MHz Clock
About 70MHz Clock
page 3
12 V
12 V
24 V
12 V
12 V
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Table of Contents
Troubleshooting
