Service manual

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