Direct Scientific DSM-502, Operation & Maintenance Manual, Page: 18 / 22

WBJI DSM-502
PAGE 18
12929-1 PC BOARD W/LCD SUP 1
9021-3 SPEAKER GASKET DIE #518 1
9077-4 ROTARY SWITCH MOD 103742 1
7.4 DSM-502 POWER SUPPLY BOARD -- P/N 12291
JOHNSON P/N DESCRIPTION REFERENCE QUANTITY
REQUIRED
100231 51K 1/8W 1206 PKG
R43 1
100242 0.01MF 50V 1206 PKG C13 1
100703 20K 1/8W 1206 PKG R46 1
102804 4-40 KEPNUT B1, 2 4
104539 W/MTG STRAP TRANSFORMER T1 1
106712 4-40X 2/8 UNDERCUT B1, 2 4
108117 10K 1/8W 1206 PKG R16, 19, 20 3
108118 4.7 1/8W 1206 PKG R11 1
108123 100 VDC 200 MW DIODE D5, 7 2
108303 3AA PC MOUNT BL. BAT. HOLDER B1, 2 2
108349 1K 1/8 1206 PKG R4, 21 2
108350 1M 1/8W 1206 PKG R8 1
108353 1.5K 1/8W 1206 PKG R9 1
108358 0.1 50V 1206P C8, 11, 12, 14, 18,
22, 23, 25-27 10
108661 NPN 40V SOT-23 Q2 1
108667 1MF 16V 1206 PKG C24 1
108829 47K 1/8W 1206 PKG R18 1
109011 SOT-23 60V 150A PNP BIPOLAR Q1 1
109133 5V REGULATOR E1 1
109156 MC33172D I.C. U1, 3 2
109163 110K 1/8W 1206 PKG R 6, 14 2
109641 470MF 16V C15 1
109896 2.4K 1/8 W 1206 R12 1
110481 1MF 50V 6032 PKG TANT. C10 1
110656 10MF 16V 3528 PKG. TANT C9, 17, 19 3
110761 1A 600V RECTIFIER DIODE D1-4 4
110824 200 OHM 1/8 1206 PKG R22 1
111128 100 MF 20V 7343 PKG ROHS COMP C16 1
111180 1M ½ W 2010 PKG R1-3 1
112074 CMOS VOLTAGE CONVERTER U2 1
112118 100PF 3000V 1808 PKG C1 1
112298 0.027 MF 2KV 2225 PKG
C2, 3, 20, 21 4
112341 249K 1/8 1206 PKG R13 1
112695 0.001MF 1KV 1808 PKG. C4-7 4
112995 0 OHM JUMPER 1206 PKG R44 1
112997 MINIATURE TEST POINTS TPG1, 2 TP 1-4 6
113143 2.7M 1/8 W 1206 PKG. R45, 47 2
114190 50K 4MM SQ. SINGLE TURN TRIMMING R7, 15, 17 3
114193 10 PIN .25” SQ SINGLE SOCKET J2 1
114194 4 PIN .025” SQ SINGLE SOCKET J1 1
114220 22M 1/10W 0805 PKG R23-42 20
114737 MUX/DMUX TRI 2CH ANLG. 16 SOTC 1.C.
U4 1