Board 15.14.250 "Power Supply Section" - Selco Genesis 200 AC-DC Repair Manual

9.2.2) BOARD 15.14.250 "POWER SUPPLY SECTION" (fig. 18)
Switching power supply: supplies auxiliary voltage required for the whole machine to work. Generally, the various voltages
power circuits that are electrically insulated from each other (there is no ground shared by the whole machine).
WARNING: before taking measurements described, open solder-jumper K2 with the machine unplugged!
Power source / Mode
OFF
OFF
Power source / Mode
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
* Note: for greater ease of measurement, TP15 is connected electrically to the metal TAB of IC9
22
Unless otherwise specified, all measurements sholud be taken with the boards in their slots and connected accordingly
Component Test point
F1 -
MF1 S D
MF1 S G
Test point Associated LED Value
RV1 RV2 -
RV1 RV2 L8
RV1 RV2 L9
- L10
TP13 TP15* L1
TP14 TP15* L2
TP12 TP15* L3
TP4 TP6 L4
TP5 TP6 L5
TP19 TP22 L6
TP23 TP22 L7
TP2 TP22 -
Value
0
+0.4 Vdc
10 K
230 Vac ± 20%
OFF
(lit if V 184Vac)
RV1 RV2
OFF
(lit if V 276Vac)
RV1 RV2
FAST BLINKING
-15 ± 0.3 Vdc
+15 ± 0.3 Vdc
+5 ± 0.3 Vdc
+24 ± 0.5 Vdc
+48 ± 2 Vdc
-15 ± 0.3 Vdc
+15 ± 0.3 Vdc
+14.5 ± 0.5 Vdc
Description of boards