THOMSON DTH175EL Service Manual
Front Control Trouble Service Flow Chart
Front Control Trouble
NG
Check between JP2 and Power Connection
OK Replace
Check between JP1 and MPEG Connection
NG
OK
NG
Check U2 Pin9/25 Voltage See: 3.1
Check U2 OK
OK Replace VFD
SEG Signal
NG
OK
Check U1 Power Signal Replace U2
NG
Replace U1