28
10. High Voltage Output Circuit
Trouble in R628, R629.
No
Yes
Is the
value of the
R622 correct?
No
Yes
Yes
Trouble in H.V output circuit
Trouble in HVG
Refer to trouble in R.S.V.
Is VB+(+185Vdc),
12V lines correct?
No
Is the
voltage of the pin3
(ON/OFF) in HVG ON
level(1.5V~15V)?
Check the EHT set (pin 4 in HVG)
EHT set :
R( ) EHT(KV)
1K
330K
2M2
8
25
26
27
27.5
Summary of Contents for 103FH
Page 35: ...33 PCB LAYOUT Main PCB Component Side...
Page 36: ...34 Main PCB Solder Side...
Page 37: ...35 Video PCB Component Side...
Page 38: ...36 Video PCB Solder Side...
Page 39: ...37 Control PCB Component Side Control PCB Solder Side...
Page 40: ...38 Socket PCB Component Side Socket PCB Solder Side...
Page 41: ...39 SCHEMATIC DIAGRAM Power PFC Circuit...
Page 42: ...40 MCU OSD Key Deflection Dynamic Circuit...
Page 43: ...41 Deflection H V Circuit...
Page 44: ...42 Video Vertical Convergence Tilt Circuit...
