Sylvania 6842PE M, Service Manual, Page: 77 / 82

2-2-2
PDMTR
Check that there is no shortcut between source drains
of FETs on the X-MAIN unit.
Check that the LED (LED2000) blinks on the LOGIC
MAIN unit.
(Q5009,Q5010,Q5012~Q5015,Q5017~Q5024)
(Q4009~Q4016)
FLOW CHART NO.3
No picture on the screen or is not displayed normally. (SMPS unit is normal)
Is the fuse (F5001~F5003) normal on the Y-MAIN unit?
Is the fuse (F4001~F4003) normal on the X-MAIN unit?
Yes
No
Yes
Yes
Yes
Yes
Yes Yes
No
No
No
No
No
Replace the Y-MAIN unit.
Replace the Y-MAIN unit.
Replace the X-MAIN unit.
Replace the X-MAIN unit.
Replace the LOGIC MAIN unit.
Replace the LOGIC MAIN unit.
LOGIC MAIN unit is normal.
Replace the PLASMA DISPLAY PANEL.
Check that there is no shortcut between source drains
of FETs on the Y-MAIN unit.
(Picture is not displayed.) (Picture is displayed.)
Is the following picture displayed?