artisan 8640B - A4 Meter;Annunciator Drive Assembly

Model 8640B TM 9-4935-601-14-7&P
CHANGE 19 (Cont'd)
Page 6-13, Table 6-3:
Change A8A2 08640-60027 to A8A2 08640-60189.
Page 6-23, Table 6-3:
Change A10A2U5 to 1820-0143 IC DGTL MC 1027P J-K FLIP-FLOP.
Delete A1A2XA10A2U5 and A10A2XA10A2U9.
Page 6-28, Table 6-3:
Add A12C6 0180-0197 CAPACITOR: FXD: 2.2 UF +10% 20 VDC TA.
Add A12CR21 1901-0418 DIODE: PWR RECT: SI: 400V MAX VRM 1.5A.
Add A12Q1 1884-0239 THYRISTOR: SCR.
Add A12R1 and A12R2 0698-3447 RESISTOR 422 OHM 1% 0.125W F TUBULAR.
Add A12VR1 1902-3393 DIODE ZNR 75V 5% DO-7 PD = 0.4W TC = +0.077%.
Page 6-37, Table 6-3:
Change A26A4R34 and R35 to 0683-1055 RESISTOR, 1M 5% 0.25W CC TUBULAR.
Service Sheet 11 (schematic):
Change part number for A10A2U5 to 1820-0143.
Service Sheet 12 (schematic):
Change A26A4R34 and R35 to 1MQ.
Service Sheet 17 (component locations):
Replace Figure 8-52 with the attached figure.
A4
Figure 8-52. A4 Meter/Annunciator Drive Assembly Component Locations (P/O Change 19)
7-44
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