Hologic-Lorad M-IV乳腺X光机英文维修手册-4.pdf

Hologic-Lorad M-IV乳腺X光机英文维修手册-4.pdf

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Hologic-Lorad M-IV乳腺X光机英文维修手册-4

Service Manual 4.6 Mains Power Board Tables 7-7 and 7-8 show the test points and their voltages or signals, or the resistance on the Mains Power Board. When taking measurements, connect the voltmeter ground appropriately according to the table below. Table 7-7: Mains Power Board Test Point Voltages TEST POINT VOLTAGE/SIGNAL GROUND TP1 +24V TP8 TP2 +24V TP8 TP6 LINE VOLTAGE TP8 TP8 PULSE TP8 Table 7-8: Switch Test Points TEST POINT RESISTANCE GROUND TP3 Less than 5Ω TP8 TP4 Less than 5Ω TP8 TP5 Less than 5Ω TP8 Note …Measure resistance with circuit breaker (CB1) OFF. 4.7 C-arm Microprocessor Board Table 7-9 shows the test points and their voltages or signals on the C-arm Microprocessor Board. When taking measurements, connect the voltmeter ground appropriately according to the table below. Table 7-9: C-arm Microprocessor Board Test Point Voltages TEST POINT VOLTAGE/SIGNAL GROUND TEST POINT VOLTAGE/SIGNAL GROUND TP1 VCC TP2 TP2 DGND TP3 CLK TP2 TP4 SEL TP2 TP5 MISO TP2 TP6 MOSI TP2 TP7

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