Test Set Up; Table 1 Test Equipm Ent And Special Tools - Motorola HSN4035 Service Instructions Manual

Amplifier-loudspeaker
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Test Set up

Description
Test Connector
DC Power Supply
Audio Analyzer
Function Generator
Digital Multimeter
Oscilloscope
Resistor, Fixed, 4-Ohms (+/- 20
percent) 20 Watts
2
1. Secu re th e test eq u ip m en t listed in Table 1 or its eq u ivalen ts.
2. Refer to Figu re 1 an d Table 2 on p age 3 an d assem ble a test
con n ector for th e am p lifie5-lou d sp eaker as follows:
1. Crim p a 24-in ch len gth of stran d ed in su lated 18 AW G
h ooku p wire on to each of th e fou r fem ale con n ector p in s.
2. In sert fem ale con n ector p in s in to p osition s 1, 2, 4, an d 5 in
Molex con n ector bod y.
3. Tag free en d of wires as sh own in Figu re 1.
3. Tu rn on p ower su p p ly, set p ower su p p ly ou tp u t voltage to 13.8
VDC, an d set cu rren t lim it to 1.5 Am p eres. Th en tu rn off p ower
su p p ly.
4. Con n ect p ositive (+) term in al of p ower su p p ly to p in 5 of test
con n ector assem bled in step 2 above. Con n ect n egative term in al
of p ower su p p ly to p in 4 of test con n ector.
5. Tu rn on fu n ction gen erator an d set it u p to gen erate a 1-kHz
sin ewave sign al with an am p litu d e of 230-m V rm s an d a DC offset
of +4.4 Vd c.
6. Con n ect fu n ction gen erator ou tp u t to p in s 1 an d 4 (retu rn ) of test
con n ector.
7. On am p lifier-lou d sp eaker to be tested , set Volu m e p oten tiom eter
kn ob to m ech an ical m id ran ge.
8. Plu g con n ector on am p lifier-lou d sp eaker 9-foot cable in to test
con n ector. Th en en ergize p ower su p p ly.

Table 1 Test Equipm ent and Special Tools

M anufacturer
Fabricated at Test
Facility
Hewlett Packard
Hewlett Packard
Hewlett Packard
Fluke
Tektronix
Dale
M odel No./ Part No.
See Figure 1 and Table
2 Below
6200
8903B
3311A
27
TDS 544A or 2430A
H25, 4-Ohms
Notes
Must be capable of
providing 13.8-Vdc, 2.0
Amperes regulated
power.
Must be capable of
providing a 1-kHz test
signal with a +4.4-Vdc
offset .
See note at end of this
table

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