Teletype Dataspeed 40PSU101 Disassembly/Reassembly And Parts

BELL SYSTEM PRACTICES
AT &TCo Standard
SECTION 582-214-700
Issue 3, April 1979
"DATASPEED*" 40 POWER SUPPLY UNITS
DISASSEMBLY/REASSEMBLY AND PARTS
CONTENTS PAGE
1. GENERAL. . . . . . . . . . . . . . . . . . . . . 1
2. DISASSEMBL Y /REASSEMBL Y
PROCEDURES FOR 40PSUI0l
POWER SUPPLY . . . . . . . . . . . . . . . . 2
A. Preliminary ................ .
B. Cover ..................... .
C. Regulator Circuit Card ....... .
D. Wiring .................... .
E. Terminal Block ............. .
F. Bridge Rectifier ............. .
G. AC Connector .............. .
H.
Fuse Assembly, Capacitor
Clamp and Capacitor ......... .
3. DISASSEMBLY /REASSEMBL Y
PROCEDURES FOR 40PSUI02
2
2
3
8
8
8
9
9
POWER SUPPLY . . . . . . . . . . . . . . . . 10
A. Cover...................... 10
B. AC/DC Circuit Card. . . . . . . . . . 12
C. Bridge Rectifier. . . . . . . . . . . . . . 14
D. Circuit Breaker. . . . . . . . . . . . . . 14
E. Diode Assembly . . . . . . . . . . . . . 15
F. 5 V Regulator Circuit Card . . . . . 15
G. ±l2 V Regulator
Circuit Card. . . . . . . . . . . . . . . . . 15
H. Transistors.................. 16
4. NUMERICAL PARTS INDEX FOR
40PSUI0l POWER SUPPLY. . . . . . . . 18
5. NUMERICAL PARTS INDEX FOR
40PSUl02 POWER SUPPLY. . . .. .. . 18
1. GENERAL
1.01 This section provides disassembly and
reassembly information for recommended
replacement components of the 40PSUI0l
DATASPEED 40 Power Supply (Fig. 1) and the
40PSUI02 DATASPEED 40 Power Supply
(Fig. 2).
*Registered Trademark of AT&TCo.
@
Fig. 1-40PSUI01 Power Supply
Fig. 2-40PSUI02 Power Supply
1.02 This section was reissued to add installa-
tion instructions to the notes in Fig. 16
and 17.
1.03 For information about power supply
removal from its station, refer to the
appropriate station disassembly jreassembly sec-
tion.
1.04 When removing a subassembly or compo-
nent from the power supply, do not force
or pry parts to provide clearance for removal.
1.05 To reassemble any component to the
power supply, reverse the disassembly
procedure. Special reassembly instructions, if
needed, are given after the associated com-
ponent disassembly instructions.
Prepared for American Telephone and Telegraph Company by Teleptype Corporation
1975,1976, and 1979 by Teletype Corporation
All rights reserved
Printed in U.S.A. Page 1