GE OPTIMA MR360, Обучение по обслуживанию

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Driver Module Input and Output Signals:
1. Head T/R Bias (J6) to SRFD3: +8VDC(@4.25A)/-14.4VDC(@400mA)
2. Body T/R Bias (J7) to SRFD3: +5VDC(@5.5A)/-14.4VDC(@400mA)
3. Dynamic Disable Bias (J21/22/24/25) to Body Coil: 500VDC/ -1A(@-3.7VDC)
4. Direct Drive Bias (J23) to Body Hybrid: 500VDC/-1A(@-3.7VDC)
5. MC Aux Power (J3): +/-15VDC used by coils to generate preamp bias for preamps in
coils.
6. MC Preamp Power (J3): +15VDC used in LPCA to generate preamp bias for preamps
in LPCA.
7. MC Switch Control (J3): signals go to 8-Channel Switch Board to control 8-Channel
Switch Board operation.
8. MCD 0-7 (J5): Multicoil T/R Bias to multicoils (+3/+5/+7/-5VDC@(0.5A)).
9. Unblank signal input (J19) from Exciter goes to CAM Lite2 (J11, J12, J13). DM can
disable RF by disabling Unblank if bias faults.
10. CAN link (J1/J2): come from PHPS Lite2, go to GP3 from DM.
11. HV/TR/DD/MC Fault Disable Switches: service facilities in DM.
12. Serial High-speed data input (J4): This input will provide the high-speed differential
data necessary for
“ on-the-fly ” coil switching. This data will be used only for intra-scan
modification of MC_SELECT to change the selection of the MC driver outputs.
It will modify only the drivers selected to switch to
“ receive mode ” and will not have
the capability of modifying the driver ’ s positive output voltage level or any fault
detection levels.