artisan 8640B - Page 269

Model 8640B TM 9-4935-601-14-7&P
CHANGE 11 (Cont'd)
P/O Figure 8-69. Power Supply Circuits Schematic Diagram (P/O Change 11) (2 of 2)
Service Sheet 23 (schematic):
Change the part number for the voltage regulator, A18U1, to 1826-0177 (schematic and Note 1).
CHANGE 12
Pages 6-18 and 6-19, Table 6-3:
Change A10A1C17 and C52 to 0160-3156 CAPACITOR; FXD 750 PF + 1% 300 WVDC.
Service Sheet 10 (schematic):
Change A10A1C17 and C52 to 750 pF.
CHANGE 13
Page 5-13, Paragraph 5-29:
Change A26A1R11 in step 2 to A26A1R19.
Pages 6-33 and 6-34, Table 6-3:
Replace the A26A1 subassembly parts list with the following list:
A26A1 08640-60043 POWER AMPLIFIER AND AGC DETECTOR ASSY
A26A1C1 0160-3094 CAPACITOR, FXD, .1 UF + -10% 100 WVDC
A26A1C2 0160-3094 CAPACITOR, FXD, .1 UF + -10% 100 WVDC
A26A1C3 0160-3094 CAPACITOR, FXD, .1 UF + -10% 100 WVDC
A26A1C4 0140-0198 CAPACITOR, FXD, 200 PF + -5% 300 WVDC
A26A1C5 0160-2204 CAPACITOR, FXD, 100 PF + -5% 300 WVDC
A26A1C6 0180-0197 CAPACITOR, FXD, 2.2 UF + -10% 20 VDC TA
A26A1CR1 1901-0040 DIODE, SWITCHING, SI, 30V MAX VRM 50 MA
A26A1CR2 1901-0040 DIODE, STABISTOR, SI, 10V MAX VRM 250 MA
A26A1CR3 1901-0022 DIODE, SWITCHING, SI, 30V MAX VRM 50 MA
A26A1CR4 1901-0040 DIODE, SWITCHING, SI, 30V MAX VRM 50 MA
7-35
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