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Sanyo Service Tip USIK / YX6E CHASSIS
07/27/12
SYMPTOM: If the power LED on front of the TV is turning ON for 10-20 seconds, OFF for
1-2 second and keeps repeating, the problem is most likely IC5750A. Affected models are
the 2009 & 2010 TVs (LCD and Plasma) listed.
IC5750A is located under the large shield. IC 5750A is a 48 pin NAND FLASH IC with
easy access for replacement. This will fix +80% of the boards with the symptom below.
You must use the 3
Sanyo Part Number: QXXAVD058- - -M dashes when ordering
this IC.
Chassis IC 5700 IC 5700
Version Samsung Quimonda
P37819-00 SW84 SW82
SYMPTOM: If the power LED on front of the TV is turning ON
P42849-00 SW84 SW82
for 10-20 seconds, OFF for 1-2 second and keeps repeating, the
P42849-01 SW84 SW82
problem is most likely IC5750A. Affected models are the 2009 &
P42849-02 SW84 SW82
2010 TVs (LCD and Plasma) listed.
P42849-04 SW84 SW82
P42849-05 SW84 SW82
P46849-00 SW84 SW82
P46849-01 SW84 SW82
P46849-02 SW84 SW82
P46849-03 SW84 SW82
P46819-00 SW84 SW82
P50749-00 SW84 SW82
P50749-01 SW84 SW82
P50749-02 SW84 SW82
P50749-03 SW84 SW82
P50719-00 SW84 SW82 IC5750 to be replaced
P52449-01 SW85 SW83 Check IC manufacture for either Samsung or Quimonda
P42840-02 SW84 SW82 The IC 5750A you receive will have software 84 installed in it. If
P42840-03 SW84 SW82 IC 5700's manufacture is Quimonda or TV is a 52" then the
P42840-04 SW84 SW82 software will need to be changed with the use of a USB drive.
P46840-01 SW84 SW82
P46840-02 SW84 SW82 Note : Only use this software in the Sanyo TVs listed.
If used in wrong chassis, it could cause TV not to come
P50740-01 SW84 SW82 on and IC 5750 will need to be changed again.
This self test is only for the
DP50749-00, with the Samsung
panel.
DP50749-00 The self test will not work with the
Panasonic panel.
Panel: Self Test
Panel is capable of generating internal patterns without the Main
Signal Board attached. (rotating: white / red / green / blue / and
various other patterns)
This test eliminates Main Signal Board from circuit and confirms if
panel itself is operating properly.
1) Unplug these connectors on Main Signal Board.
K8P
K8B
2) Short pins 1-4 together on Logic Bd. at under connector
CN2000. (a small screw works good to short all together)
3) K8P Connector
These pins must be shorted together.
p#1 & #3
p#2 & #7
Shorting these pins together will automatically energize the panel,
after AC power has been applied in step #4 below.
4) AC power must be applied to panel. Power cord can still be
attached to AC Filter, or power can be applied directly to
CN800s on SMPS.
(recommend that AC Filter still be used for ease of connection,
but can be bypassed if needed)
5) Please remember to remove the screw on the Logic Board under
CN2000, when finished.
note: no audio is available with panel self test
#1
#2
#4
FILE NO.
SERVICE MANUAL Remote Control Digital DP50749 (U.S.A.)
Color Television (CANADA)
ORIGINAL VERSION
Chassis No. P50749-00
NOTE: Match the Chassis No. on
the unit's back cover with
the Chassis No. in the
Service Manual.
If the Original Version
Service Manual Chassis
No. does not match the
unit's, additional Service
Literature is required. You
must refer to "Notices" to the
Original Service Manual
prior to servicing the unit.
Servicing should be performed by only trained and qualified service personnel.
Contents Specifications
SAFETY INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . 2 POWER RATING . . . . . . . . . . . . . . . . . . . . . . . . . 120VAC
SERVICE ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . 3 464 W (AVG.)
ON-SCREEN SERVICE MENU . . . . . . . . . . . . . . . . . . . . . 4 ANTENNA INPUT IMPEDANCE. . . . . . . . . . . . . . . . . 75
POWER FAILURE CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . 5 UHF/VHF/CATV
MECHANICAL DISASSEMBLY . . . . . . . . . . . . . . . . . . . . 6 DIGITAL
CHASSIS ELECTRICAL PARTS LIST . . . . . . . . . . . . . . . . 8