Test Point
Table
Signal | Measurement and Conditions |
A4A1/A4A3 LEFT TUNNEL BOARDS (FIGURE
Leave meter or scope common connected to test point ((9)) when taking measurements at test points 47 through 64. The measurements were taken with
TP47 | OUTPUT CONTROL | 0.05V in CV mode |
| (comparator + input to all stages) | 0.98V in CC mode |
TP48 | Stage 1 comparator | 0.05V in CV mode |
|
| 0.98V in CC mode |
TP49 | Stage 1 FET driver input | 3.75V in CV mode |
|
| 4.78V in CC mode |
TP51 | Stage 3 comparator | 0.05V in CV mode |
|
| 0.98V in CC mode |
TP52 | Stage 3 FET driver control | |
|
| 4.65V in CC mode |
TP54 | DP CONTROL | 0.22V in CV mode |
|
| 1.9V in CC mode |
TP55 | DP stage comparator | 0.22V in CV mode |
|
| 1.9V in CC mode |
TP56 | DP stage comparator output | |
|
| 2.47V in CC mode |
| A4A2/A4A4 RIGHT TUNNEL BOARDS (FIGURE |
The same measurement conditions apply as described for the A4A1/A4A3 Left Tunnel Boards.
TP58 | OUTPUT CONTROL | 47mV in CV mode |
|
| 0.99V in CC mode |
TP59 | Stage 1 comparator | 47mV in CV mode |
|
| 0.98V in CC mode |
TP60 | Stage 1 FET driver control | 3.3V in CV mode |
|
| 4.75V in CC mode |
TP62 | Stage 4 comparator | 45mV in CV mode |
|
| 0.98V in CC mode |
TP63 | Stage 4 FET driver control | |
|
| 4.5V in CC mode |
Service Addendum | 45 |