5
Table-A : Adjust the values of service mode when a part is replaced.
ADJUSTMENT
NECESSARY
UNNECESSARY
I701
Data is stored in I703
(U-COM)
I101
(MAIN)
Initial setting values are written from I701.
Adjusting ltems
S5
RFAGCD
S6
H.PHASE/V.POSI/V.SIZE
S8
RD/BD/RB/GB/BB
S9
Subbrightness
CRT
Adjust items related to picture tube only. (White Balance adjustment)
ALIGNMENT INSTRUCTIONS
SERVICE MODE ADJUSTMENTS
Follow the steps below whenever service adjustment is required. See Table- A and Table- B to determine if
service adjustments are required.
1) How to enter the service mode using the user remote control.
• Turn the set on.
• Direct the remote control to the reception window of TV.
• Push buttons of remote control in sequence as follows.
1 MUTE DISPLAY MUTE
• Then, the screen will appear as follows.
• Using the channel up or channel down button, select the item you wish to adjust.
(The color of selected item turns into the red.)
• Press the volume up or down button to enter in the service mode you wish to adjust.
2) How to memorize the adjusted values in the service mode.
• Must press DISPL AY button the state which the screen is displaying each of service menus
after all adjustments are completed each of all service menu.
PART
REPLACED
NOTES
I703
(EEPROM)
Summary of Contents for DTH-20D5FSN
Page 4: ...CIRCUIT BLOCK DIAGRAM 3...
Page 11: ...SCHEMATIC DIAGRAM 10...
Page 12: ...PRINTED CIRCUIT BOARD PCB MAIN 11...
Page 13: ...12 EXPLODED VIEW DTH 20D5FSN...
Page 14: ...13 EXPLODED VIEW DTH 21D4FSN...
Page 39: ...TROUBLESHOOTING GUIDE APPENDIX 5 NO COLOR 6 NO VERTICAL DEFLECTION 38...
Page 40: ...TROUBLESHOOTING GUIDE APPENDIX 39 7 NO ON SCREEN DISPLAY 8 REMOTE CONTROL DOES NOT OPERATE...