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Table of contents




Service Manual
Circuit Diagrams
Adjustment Procedure
HM303-5




Y-Preamplifier CH I (YP-Board) .................................. 4
Y-Preamplifier CH II (YP-Board) ................................. 5
Y-Intermediate Amplifier and Trigger Amplifier
(YP-Board) ................................................................. 6
YPA-Board (Bottom side) .......................................... 7
YPA-Board (Top side) ................................................. 8
XY-Board (X-Amplifier) ............................................... 9
XY-Board (Y-Amplifier) ............................................. 10
XY-Board (Top side) ................................................. 11
Sync.-Amplifier ........................................................ 12
Timebase ................................................................. 13
Sweep-Generator .................................................... 14
TB-Board ................................................................. 15
CRT-Board ............................................................... 16
CRT-Board (Top and Bottom side) ........................... 17
Power Supply (PS-Board) ........................................ 18
PS-Board (Bottom side) .......................................... 19
PS-Board (Top side) ................................................. 20
Component tester, Calibrator .................................. 21
CCT-Board (Top and Bottom side) ........................... 22
St. 010998. H