Equipment information
Hameg HM 303-4 Oscilloscope
Manufacturer:
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Model:
HM 303-4
Date:
1998
Category:
Group:
Description:
30MHz Standard Oscilloscope
Information
30MHz Standard Oscilloscope HM 303
Dual Channel, DC to 30MHz, 1mV/div.; Overscan Indicator
Time Base: 0.2s to 10ns/div.; Variable Holdoff; Alternate Triggering
Triggering: DC-100MHz; Auto Peak to Peak; Active TV-Sync-Separator
Additional Features: Component Tester, 1kHz/1MHz Calibrator
The new Hameg HM303 Oscilloscope succeeds the HM203 (over 170,000
sold worldwide). The bandwidth has been extended from 20 to 30MHz, the sweep rate increased to 10ns/div. and improvements added to the already legendary Hameg auto triggering system. The HM303 is the ideal instrument for waveform display in the DC to 100MHz frequency range.
A key feature of this Oscilloscope is the vertical amplifier's pulse fidelity, limiting overshoot to only 1%. The HM303 offers a special fast rise time 1kHz/1MHz Calibrator, permitting high quality Probe compensation across the entire frequency range to ensure probe-tip thru to display integrity. An Overscan Indicator assists
in vertical display amplitude and position adjustment.
The HM303 is capable of triggering on input waveforms over 100MHz and on
signal levels as small as 0.5 division. Alternate triggering mode enables the
display of two asynchronous signals simultaneously. An active Video Sync-
Separator permits detailed examination of complex TV signal inputs. A well
proven, built-in component tester is now equipped with a stabilized measuring
voltage. The use of a switching type of Power supply minimizes both weight and
power consumption and universally accepts a wide range of input power line
voltages, without the requirement to change jumpers or switch positions. The
HM303's CRT is fully mu-metal shielded against outside magnetic fields.
Hameg is setting newprice/performance breakthroughs with the introduction
of this fine Oscilloscope. This performance packed scope will tempt all users to run
it through its paces.
Manual Type:
Service Manual
Pages:
44
Size:
5.80 Mbytes (6082830 Bytes)
Language:
english
Revision:
Manual-ID:
4S-0303-04E0
Date:
1998 06 10
Quality:
Electronic document, no scan, very well readable.
Upload date:
2020 03 15
MD5:
163a3c97ebbc92eaa36b81eaa0e9bb30
Downloads:
1032
Information
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 (Top side) ... 7
YPA-Board (Bottom side) ... 8
XY-Amplifier, YF-Amplifier, OS-Circuit ... 9
XY-Board (Top side) ... 10
XY-Board (Bottom side) ... 11
Sync.-Amplifier ... 12
Time base ... 13
Sweep-Generator ... 14
TB-Board ... 15
CRT-Board ... 16
CRT-Board (Top and Bottom side) ... 17
Power supply (PS-Board) ... 18
PS-Board (Top side) ... 19
PS-Board (Bottom side) ... 20
Component tester, Calibrator ... 21
CCT-Board (Top and Bottom side) ... 22
Front-Control Board ... 23
Front-Control Board (Top and Bottom side) ... 24
ADJUSTMENT PROCEDURE ... 25