DIAGNOSTICS
Test Points and LEDs
10DEC05
DG4825-1
Page
173 of 180
PMT/DAS BOARD A5
Table 21
Test Points on the PMT/DAS BOARD A5
TP
Name
Description
Expected Signal
1
DGND
Digital ground
0.0 V DC
2
24 V
+24 V DC power into the
BOARD
22.2 - 25.5 V DC
3
5 V_Startup
Circuit for the CLOCK
4.85 - 5.00 V DC
4
DGND
Digital ground
0.0 V DC
5
–13.5 V DC_A
Negative output of the DC TO
DC CONVERTER
–13.5 - 15.0 V DC
6
–13.5 V DC_A
Positive output of the DC TO
DC CONVERTER
–13.5 - 15.0 V DC
7
DGND
Digital ground
0.0 V DC
8
5 V DC_D
D5 V DC POWER
SUPPLY
4.8 - 5.2 V DC
H194_0015BC
Bottom
Top
P2
P3
P1
TP9
TP11
TP12
TP22
TP21
TP25
TP1
TP2
TP3
TP4
TP13
TP24
TP20
TP14
TP15
TP23
TP17
TP16
TP19
TP6
TP18
TP5
TP7
TP8
TP10
TP26