GE Senographe DS, Manual

Page: 961 / 1810

GE Healthcare Senographe DS
Revision 1 Service Information and Procedures Class A 2385072-16-8EN
Job Card DIAG A1000 - Gantry Diagnostic
Page no. 961 Chapter 9
JC-DIAG-A-1000.fm
2-31 JC DIAG A1213 COMPRESSION CONTROL FAILURE
Diagnostic for:
122/043 error code (CAN code is 0x502C) Force sensor error
• First measure the frequency on pin 3 of Compression Board connector J10. The nominal value is
2 kHz to 20 kHz, with a 5 VDC amplitude square waveform.
• If no signal can be measured:
-
First change cable W304.
- If still no signal can be detected, change cable W304b.
- If still no signal can be detected, change the PL304 paddle detector board.
- If still no signal can be detected, change the compression force sensor (see Job Card D/R A248 -
Force Sensor on page 1313 ).
- If still no signal can be detected, change the Compression Board (see Job Card D/R A250 - Com-
pression Board on page 1323 ).
• If the signal is detected but the measured frequency is out of the specified limits:
-
First change the compression force sensor (see Job Card D/R A248 - Force Sensor on page
1313 ).
- If the frequency is still incorrect, change the PL304 paddle detector board.
• If the measured signal is good and within the specified limits, but the error is still reported, change the
Compression Board. See
Job Card D/R A250 - Compression Board on page 1323 .
FRUs:
2-32 JC DIAG A1214 COMPRESSION CONTROL FAILURE
Diagnostic for:
122/002 error code (CAN code is 0x5038) absolute range error
Error name: potentiometer range error
• First check that the potentiometer screw is not broken. If it is, change the potentiometer and cable
(see
Job Card D/R A243 - Compression Potentiometer and Cable on page 1289 ).
• Check that the potentiometer cable (W303) is not damaged. If it is, change the potentiometer and
cable (see
Job Card D/R A243 - Compression Potentiometer and Cable on page 1289 ).
• If the cable is good, measure resistance between pins 1-2, 1-3, and 2-3 while moving the potentiom-
eter steel wire.
-
If the resistance does not change linearly in accordance with movement of the steel wire, or the
value of the potentiometer is not equal to its nominal value, change the potentiometer and cable.
See
Job Card D/R A243 - Compression Potentiometer and Cable on page 1289 .
• If the error persists, try to recalibrate the Compression Board. See Job Card CAL A048 - Calibration
of Compression Force Sensor on page 1709 and Job Card CAL A050 - Compression Thickness Cal-
ibration on page 1721 ).
- If the calibration fails, change the Compression Board (see Job Card D/R A250 - Compression
Board on page 1323 ).
Force sensor
W304a cable
W304b cable
PL304 Paddle holder board
Compression Board