Milnor 48040H7K, Schematic/Electrical Parts

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W6H3NZTG2
MICRO 6 SYSTEM
S
CONTROL B
O
X LA
YOUTS
PELLERIN MILNOR CORPORA
TION
W6H3NZTG2
2018352B
W6H3NZTG2
2018352B
W6H3NZTG2
2018352B
TO TEST POWER SUPPLIES OUTPUT
1. MAKE SURE MACHINE IS ON.
2. USING HIGH QUALITY DIGITAL VOLTMETER (FLUKE MODEL
77 OR EQUAL) MEASURE THE VOLTAGE ON ANY ONE OF
BOARDS IN THE CARD CAGE *MTA#2 BETWEEN PINS 3 (+5V)
AND PIN 4 (GND). THE VOLTAGE RANGE SHOULD BE 5.01-
5.12VDC. SEE FIGURE 1.
3. MEASURE THE VOLTAGE AT BPB ON CONNECTOR J4 BETWEEN
PIN 1 (+12V) AND PIN 2 (GND). THE VOLTAGE RANGE SHOULD
BE 12.2-12.4VDC. SEE FIGURE 2
TO ADJUST POWER SUPPLY VOLTAGES
1. +5V,+12V &-12V IS PROVIDED BY PART NUMBER 08PSS3401T
LABELED ESPS. POWER SUPPLY PART NUMBER 08PSS2401T
PROVIDES THE +12V FOR THE PROCESSOR BD LABELED ESPS2.
2. LOCATE THE VOLTAGE ADJUSTMENT POTENTIOMETER. THE
POTENTIOMETER WILL BE A SMALL BLUE COMPONENT. IT IS
SOLDERED ON EACH POWER SUPPLY’S PRINTED CIRCUIT
BOARD. THERE MAY HAVE A SPOT OF SILICONE ON
ADJUSTMENT SCREW. SEE FIGURE 3.
3. USING A SMALL (POCKET TYPE) SCREW DRIVER REMOVE
THE SILICONE AND TURN THE POTENTIOMETER
TURNING CLOCKWISE TO RAISE THE VOLTAGE AND
COUNTER-CLOCKWISE TO LOWER.
4. RE-APPLY SPOT OF ELECTRONIC GRADE SILICONE ON
ADJUSTMENT SCREW TO FIX IN PLACE. RE-TEST TO
5VDC ON ESPS AND +12VDC ON ESPS2 ARE
WITHIN CORRECT VOLTAGE RANGES.
12.30
BPB PRT
OUCHSCREEN
IN SWITCH P
ANEL
NEGATIVE
PROBE
POSITIVE
PROBE
FIG 1.
FIG 2.
RAISE
VOLTAGE
LOWER
VOLTAGE
ADJUSTMENT
PONTENTIOMETER
B2T2014012
2014243A
DC VOLTAGE
CONNECTION
FIG 3.
POWER SUPPLY
PRINTED CIRCUIT
BOARD.
INPUT
POWER
CONNECTION
IMPORTANT
SETTING MILTOUCH-EX POWER SUPPLIES
TM
5.10
NEGATIVE
PROBE
POSITIVE
PROBE
+12 -12 GND
+5 SLH SLL
CHASSIS
GND
*MTA42
6
1
Board # =
*
ESPS and ESPS2 ARE DIFFERENT. TAKE CARE TO NOT
MIX UP PART NUMBERS. IF WRONG POWER SUPPLY
IS USED PERMANENT BOARD DAMAGE WILL OCCUR.
48040H7R/K - 48040M7K
PELLERIN MILNOR CORPORATION
L
1 L
2 L
3
TB
MVLF
EXHV
INVERTER
FLT
TBV
CSVS CB1
AUX
CSDO
MVRTR
MVINV
ETVS
WCL WCI
ETDO
EFP
1
EF
0
1
EFP
2
EF
0
2
B2T2015005
2017355A
INCOMING POWER
SEPERATE BRANCH CIRCUIT PROTECTION
COPPER CONDUCTORS ONLY
31