
MINI6600
TM
Mobile Digital C-Arm Service Manual - Periodic Maintenance
PS1 (5V and 12V)
1. Measure the voltages at the following test points on the Video Switching PCB and adjust as required with R53
(+5) and R21 (+12) on PS1. Refer to
section of the service manual (00-
878315) for the location of PS1. Refer to FIGURE 2 below for locations of R53 and R21.
2. The Video Switching PCB is located on the inside of the hinged rear panel of the electronics box (Refer to
section of the service manual (00-878315)).
GND
TO
ADJUST
MEASUREMENT
TOLERANCE
TP25
TP24 Not Adjustable
- 5.0 VDC
±0.75 VDC
TP25
TP27 Adjust PS1 R53 (OUT1)
+ 5.0 VDC
±
0.75 VDC
TP25
TP28 Adjust PS1 R21 (OUT 2)
+12 VDC
±1 VDC
TP25
TP19 Not Adjustable
- 12 VDC
±1 VDC
TABLE 3
FIGURE 2 - System Power Supply PS1 (+5V, -5V, +12V, -12V)
F 1
250V 4A
FAST BLOW
PS1 P3
OUT 1
V ADJ
R53
DO NOT
ADJUST
R43
C28 C30
C32 C29 C42
C31
C18
OUT 2
V ADJ
R21
C 5
C51