Electro voice 61 81pm pwrmix
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Page 1
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S E RVI C E
EV® was DATA
TWX: 0102706135
MODEL 61 PM
The following component value changes were made to the main board (#4003514600) In the 61PM.
These changes improve the sound at the reverb. and also stop oscillations in some units. Table 1 lists
the components affected and their new values. Flgure 1 shows the locations of the components on the
schematlc.
22%??? OLD VALUE NEW VALUE
0253 o.oas,uF 0.086;
c255 l2DpF tpr
0288 120pF 100pF
0286 0.033pF 0.065;=
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Table 1
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Flgure 1
4 This sheet [5 Hammerm/II laser hint, White] Substance 94/60.
Page 2
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' SCHEMATIC DIAGRAM