Shimadzu GCMS-QP2010 - Page 106

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106
5. Checking the AC voltage
The AC voltage is normal if 2 to 3V
P-P
is output from CP15[AC] when m/z500 is set. (It
fluctuates due to AC adjustment.)
6. Checking the pre-rod bias
The pre-rod bias is normal if JT1[PRE] is within pre-rod bias set value ±10%.
RF GENE-A Block Diagram
V‑RF
X‑1
PREROD
MAINROD
Rectification
POL‑RF
R24,R25


‑
+
LimitSwitch
PRE
V‑PROD
M2(2/2)
CP15[AC]
M3(1/2)
M1(1/2),Q5,Q6
M1(2/2),Q3,4
M2(1/2)
M3(2/2)
52.5KHz
M6(2/2)
M6(1/2)
M7
CP11[ACLK]
M8
Q13,14,15
1.05MHz
Q11,12
M4(1/2)
XON‑RF
V‑AC
V‑RESO
RF1
V‑MROD
RF2
ERR‑RF
M4
(
2
/
2
)
VR1[RF]
R27R26 VR2[M/Z]
CP8
[
RF
]
CP4[FB]
CP16
[
EAMP
]
J4‑4
J4‑1
J4‑2
J4‑6
RF1
RF2
CP13[V]
CP10[U1]
CP9[U2]
OUTRF
CP14[MON]
X1
X‑1