B&K Precision 1794 - Manual - Manual (Page 31)

2. PS-PREG-1791-0503 PCB ASSLY
Reference Part Reference Part
Designator Description Designation Description
TRANSISTORS
Q1
BC 109 Q4 BC 557
Q2 MPSA12 Q5 BC 547
Q3 BC 557
ZENERS
Z1
4.7V, ½W Z2 10V, ½W
PRESET
VR1
5K ( 3206F ) HOR
TRANSFORMER
T1
EE25 PULSE TX.
3. Z-DPM/01 REV - 01 X 2
Reference Part Reference Part
Designator Description Designation Description
RESISTORS
R1
39K, 0.25W, 5%, MFR R6 2K4, 0.25W, 5%, MFR
R2 470K, 0.25W, 5%, MFR R7 330K, 0.25W, 5%, MFR
R3 1M, 0.25W, 5%, MFR R8 330K, 0.25W, 5%, MFR
R4 SEL ( INPUT ) R9 6K8K, 0.25W, 5%, MFR
R5 10K, 0.25W, 5%, MFR
PRESETS
PR1
3K, LIN, VER (REF ADJ)
CAPACITOR
C1
220µF/50V, EL C6 0.1µF, 100V, MP
C2 0.1µF/100V, MP C7 10µF, 50V, ELE
C3 0.01µF/100V, MP C8 0.1µF, 50V, CD
C4 0.1µF/100V, MP C9 10µF, 50V, ELE
C5 0.1µF/100V, MP C10 0.1µF, 50V, CD
IC's
IC1
7107 DECODER DRIVER
VR1 TL - 431
FND's V, DPM DS1 KLS 563G GREEN DS3 KLS 563G ( GREEN )
DS2 KLS 563G GREEN
FND's A, DPM DS1 KLS 563 I RED DS3 KLS 563I ( RED )
DS2 KLS 563 I RED
LEDS
LED1
3mm GREEN FOR CV ( V DPM )
LED2 3mm RED FOR CC ( A DPM )
MISCILLANEOUS
J1
2.54 PITCH, 3 PIN M J3 2.54 PITCH, 4 PIN M
J2 Not Used
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