TABLE 2
voltage considerably below the indicated value of the
control.
(Voltages within brackets refer to 60 V models) .
"
Important control Test equipm. Correct
reading
Remedy
no
13
ettings
connection
la
lb
II
Voltage control
32 V (60V) . OVP
off. Current limit
50%
As above
As above
III
As above
IV
As above
V
As above
VI
As above
VII As above
VID As above
IX
As above
x
As above
Voltm. TG:TD 9, 7-ll,3V
Voltm.TG:TF
-&,
2 V
.:: 5%
Voltm. + out to 7-20 V
C8o+ .
1 kohm lOW
across C80
Voltm.TG:T8c 1, 1 V
Voltm. TG:wip.
arm P90 (red
blue-grey)
Voltm.TG:TM 4-5, 8V
Voltm. TM:D8 O, 6 V
Cathode
Voltm. TG:Tlc 0,
7V
bel.
value inV
Correct: cont.
Ib.
Faulty:
check Zl, T3, T9, TlO.
Ammeter reading 50%:
check OVP, table 6.
Faulty: check Z3, T12 .
Correct: cont. II
Correct: cont. III.
Lower: cont.
IX
Correct or higher:
TlO and all T71 's.
Lower: cont.
IV.
Zero: check Pl, P90
and Rl. Pos : cont. V
Correct: cont. VI.
Faulty: check Z2.
Faulty: check current
limit. Correct: cont. VII
Higher: check Tl, T2 .
Correct: cont. VIII
Voltm.TG:T7e 0,
7V
bel. Higher: check T7. Cor
V alue in V rect or lower: check T8 .
Oscilloscope across
D59 and deflection
1-3 V D6 0. Anode
gr.
Tr80 secund. 55V (97V)
Correct: check
X.
No
pulses : perform
" Firing circuit check"
Faulty: check Tr 80 and
primary voltage.
Correct: check SCRl,
2 and D80, 81.
49
