Text preview for : Sanyo_DP50749_P50749-01_J4FF_[SM].pdf part of Sanyo Sanyo DP50749 P50749-01 J4FF [SM] Sanyo Monitor Sanyo_DP50749_P50749-01_J4FF_[SM].pdf
Back to : Sanyo_DP50749_P50749-01_J | Home
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.
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
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.
1. SVC Guide for Black Half Image (PDP50G2T000)
1. Defect Phenomenon 5. SVC Guide for retainer
: Black half image or Abnormal half image
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]
2. PDP module Model: PDP50G2T0000
DP50749-01 (J4FF) P109
4 RETAINERS PER TV
3. Cause
: insufficient connection between Y-DRV B/D and Y-SUS B/D P107
P208
4. Countermeasure
1) Insert Retainer 4EA in Y-DRV B/D Connector
2) Retainer Part Number: EAG61050702 P205
3) Y-DRV B/Ds don't need to be replaced.
4) If Y-DRV failure occurs,
normal Y-DRV and retainer should be replaced.
[Y-DRV BTM]
The People Company Breakthrough
Notice
CORRECTION PRODUCTION CHANGE
SERVICE FLASH ADD INFORMATION FILE NO.
Please add this notice to the Service Manual listed below. REVISION 0
Category: COLOR TELEVISION Date: OCTOBER / 29 / 2009
Model: DP50749 Effective from : Chassis No. P50749-01
Destination: U.S.A. / CANADA REF : No. SM780163-01
NOTE: Match the Chassis No. on the unit's back cover with the Chassis No. in the Service
Manual. If the Service Manual Chassis No. does not match the unit's, additional Service
Literature is required. This chassis is similar to Chassis No. P50749-00. Only the
difference 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.
1. IN THE SERVICE ADJUSTMENTS
PAGE 4 ON-SCREEN SERVICE MENU
Item No. 088 OP2 Data should be changed from 3Ch to 3Dh in the table and in Note 2.
2. IN THE CHASSIS ELECTRICAL PARTS LIST MISCELLANEOUS
The reason for change.
A : Misprint B : Quality Reliability C : Standardization
D : Design E : Add as a possible sub F : Schematic location change
G : Purchasing Request
Page & Interchange-
Schematic Part No.
Section Location
Description Q'ty ability Reason
Page 14, Old N/A NOT USED 0 NO
Chassis D002 ------------------------------------------------------------------ D
Electrical
Parts List New DD1SS352----G DIODE 1SS352-(TPH3) 1 NO