Test Point
| Table | |
Signal |
| Measurement and Conditions |
The measurements at test points 26 through 39 were taken with full scale voltage
and full scale current programmed. The measurements were made first in the CV mode with no load and then in the CC mode with the load set for
TP26 D413 | CC control (sheet 2) | 1.57V in CV mode |
cathode |
| 0.15V in CC mode |
TP27 R703 | RmOUTB (sheet 2) | 3.3mV in CV mode with no load |
|
| 0.19V in CC mode with 8A load |
TP28 | Imon (sheet 2) | 0.9mV in CV mode with no load |
|
| 4.39V in CC mode with 8A load |
TP29 R430 | Neg Imon(sheet 2) | 13.9mV in CV mode |
|
| |
TP31 | CC* (sheet 2) | 5V in CV mode |
|
| 0V on CC mode |
TP32 | CV control (sheet 2) | |
|
| 1.55V in CC mode |
TP33 | Vmon (sheet 2) | 4.1V in CV or CC mode (@ full scale voltage output) |
TP34 | CV*(sheet 2) | 0V in CV mode |
|
| 5V in CC mode |
TP35 | CV or CC control (sheet 2) | 0.5V in CV mode |
|
| 0.98V in CC mode |
TP36 D429 | FET control (sheet 2) | 0.05V in CV mode |
anode |
| 0.98V in CC mode |
TP37 D419 | Gross current limit circuit | 14.5V in CV or CC mode |
cathode | (sheet 2) |
|
TP38 D425 | DP Control (sheet 2) | 0.22V in CV mode |
cathode |
| 1.9V in CC mode |
TP39 R444 | OV_Prog (sheet 2) | 5.17V @ full scale OV programmed |
TP40 R706 | Fan_Prog (sheet 1) | 0.5V approximate @ low speed |
|
| 3.2V approximate @ medium speed (4A output) |
|
| 5V approximate @ high speed (8A output) |
TP41 R453 | OC_Prog (sheet 2) | 4.6V |
TP42 | OV circuit (sheet 2) | 4.5V with full scale voltage programmed |
|
| 0V with zero volts programmed |
TP43 | OV circuit (sheet 2) | 5V (no OV condition) |
TP44 R510 | Therm HS(sheet 2) | 3.2V with heatsink @23C (voltage decreases as |
|
| temperature increases) |
TP45 D430 | OC circuit (sheet 2) | 5V with no overcurrent condition |
anode |
|
|
TP46 D407 | OC circuit (sheet 2) | 0.45V with no overcurrent condition |
cathode |
| 2.3V in OC Protect |
Service Addendum
