5
PCB EXPLANATION
MUX-100 SERVICE MANUAL
5 - 4
CP8
VS
Inverter working frequency voltage until the tube voltage reaches the preset value
CP9
TKV
Measured tube voltage (1V/20 kV)
CP10 VN
Reference inverter working frequency voltage after the tube voltage reaches the
preset value
CP11
TMA
Measured tube current (1V/50 mA)
CP12
PKV
Preset tube voltage (1V/20 kV)
CP13
RMA
Preset tube current (1V/50 mA)
CP14
FVR
Preset filament current (1V/1A)
CP15
PH-REF
Preset phototimer reference voltage (No use for MUX-100D)
CP16 GND
GND
CP17 +15V +15V
CP18 +5V
+5V
CP19 GND
GND
CP20
VP1
Charging voltage detection (3V/100V)
CP21
VP2
Charging voltage detection (3V/100V)
CP22
IC
Charging current detection ( 1V/ 1A )
CP23
LV
Power supply confirmation (2V/100%) (which detects 100V output from the T1)
CP24 +15V +15V
CP25 GND
GND
CP26 -15V
-15V
CP27
VIN
Inverter frequency voltage
CP28 MASCLK
Signal created when the TMA is converted into the frequency by the V/F
converter. This signal (5 kHz/50 mA) is used in the mAs timer.
CP29 F
Oscillation frequency to drive the IGBT. This signal is adjusted by the
VR2 (VFADJ).
Refer to Appendix C in the Installation Manual.
CP30
mA-IN
To be short-circuited during adjustment
CP31 CHGREF
Not
Use
CP32 GND GND
CP33
A/D
IGBT drive control signal
CP34
B/C
IGBT drive control signal
CP35
KVFB-
Tube voltage feedback signal (-)
CP36
KVFB+
Tube voltage feedback signal (+)
CP37
KVT
Signal which rises when the tube voltage reaches the preset value
CP38
Q1-4
Heating FET drive control signal
CP39 EXRR Exposure
signal
CP40
Q2-3
Heating FET drive control signal
Jumper list
SW name
Silkscreen
Setup
Means
「
ON
」
○
Standard
JP1
「
KC
」
KC signal is outputted to the terminal X2
「
C/C1
」
○
For High Voltage Trans D125PH-C/C1
JP2
「
C2
」
×
For High Voltage Trans D125PH-C2
「
S
」
○
Master reset time Approx. 1.4 sec
JP3
「
L
」
×
Master reset time Approx. 3.3 sec