Telequipment DM64, Manual

Page: 26 / 63

CHAPTER 5
COMPONENT LIST
Values of resistors are stated in ohms or multiples of ohms; ratings at 70
0
C are in watts or sub-multiples of watts. Values of
capacitors are stated in sub-multiples of farads; ratings at 70
0
C are in volts or kilovolts.
Whenever possible, exact replacements for components should be used, although locally available alternatives may be satisfactory
for standard components.
Instrument type
Instrument serial number
Component circuit reference
Component part number
Component value
The table below gives the blocks of circuit references, so that the reader can relate the items listed in this chapter and
and their location in the circuitry and printed circuit boards in Chapter 6.
Circuit
Reference
P.C.
Circuit Fig
Board No
From To
1 50 Trigger Circuit 5 110
60
200
Timebase X - Amp & Blanking 6 110
201
300
Time/Div Switch 7
116
301 400 CRT Circuit
8
401
600
Power Supply
10 111
601
749
Y - Amplifier & Channel Switching 3
115
750 900 Y - Amplifier Trigger Output 4 115
901 999 Attenuator 2 73
1000 Storage Circuit
9 111
ABBREVIATIONS
C
Carbon
Ge Germanium Se Selenium
CP Carbon preset Si Silicon
CV Carbon variable MF Metal film SM Silver mica
CER Ceramic MO Metal oxide WW Wire-wound
CT Ceramic trimmer PE Polyester WWP Wire-wound preset
CM
Cermet thick film PP Polypropvlene WWV Wire-wound variable
E Electrolytic PS Polystyrene
All requests for repairs or replacement parts should be directed to the Tektronix Field Office
or representative in your area. This procedure will assure you the fastest possible service.
In the UK requests to be made to Harpenden.