Sanyo DP50749 Service Manual
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Sanyo DP50749 Service Manual

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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 from SMPS and Logic Board.
P813
(SMPS)
P121
(LOGIC BD., LVDS Cable must be unplugged)
2) Short the pins together on Logic Bd. (drawing attached)
3) Apply AC power: If the panel and its PCBs are working, it will
energize, just as soon as pins are shorted. The panel will have
several rotating patterns on the screen.
note 1 :
Power cord can still be attached to AC Filter, or power can be
applied directly to SMPS.
(recommend that AC Filter be used for ease of connection, but
can be bypassed if needed)
Note 2:
Do not push the Pwr Key (the Main is not connected)
note 3:
no audio is available with panel self test
DP50749-01
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Summary of Contents for Sanyo DP50749

  • Page 1 DP50749-01 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.
  • Page 2 LG PANEL FOR DP50749/ J4FF  Jumper  between these  two points  Logic Board  For Panel Self Test to Run: 1) Must unplug LVDS Cable between Main Bd. & Logic Bd.. 2) Must unplug cable between Pwr Bd. (P813) and Main Bd. (K8P & K8B) 3) Short the above two points on the Logic Bd.
  • Page 3 1) Connect Y-DRV and Y-SUS B/D 2) Insert and push the retainer until click sound is heard. [Y-DRV TOP] Retainer [Y-SUS] PDP module Model: PDP50G2T0000 DP50749-01 (J4FF) P109 4 RETAINERS PER TV 3. Cause P107 : insufficient connection between Y-DRV B/D and Y-SUS B/D P208 4.
  • Page 4 Service Information is given in this manual. For detailed Service Information, refer to the Original Service Manual and Notices for Chassis No. P50749-00 used in Model DP50749 (SM780163). SERVICING SHOULD BE PERFORMED BY ONLY TRAINED AND QUALIFIED SERVICE PERSONNEL.
  • Page 5 Page & Part No. Description Q’ty Interchange- Reason Schematic Section ability Location Page 15, T2SC2411K-Q-P TR 2SC2411K-T146-Q Chassis Q1604 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Electrical NOT USED Parts List...
  • Page 6 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Electrical 1AA4W30B56300 CORD 50INCH,40P-31P(LVDS) Parts List For parts or service contact: Sanyo Manufacturing Corporation P.O. Box 2000 3333 Sanyo Road Forrest City, Arkansas 72335-2000 October 2009 SMC Published in Mexico SM780163-01 REFERENCE No. DP50749, J4FF, PRODUCT CODE 111010904...