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PCB EXPLANATION
ＭＵＸ-１００ SERVICEMANUAL 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
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