artisan 8640B - Page 249

Model 8640B TM 9-4935-601-14-7&P
MANUAL CHANGES
CHANGE E (cont'd)
Page 5-2, paragraph 5-21 (cont'd):
7. Without changing pot resistance, remove pot and measure its resistance. It should typically be 4500
ohms.
8. Solder nearest standard value resistor in parallel with A8AlR1 (across test points).
Page 5-2, Table 5-1:
Delete A8A1R4.
Add the following:
A8A1R1 18 620 ohms See Paragraph 5-21.
Page 6-7, Table 6-3:
Change A3A4R2 to 2100-3161 RESISTOR; VAR; 20K 10% TYPE P 3/4W.
Page 6-10, Table 6-3:
Change assembly part number for A7 to read as follows:
A7 08640-60030 FM SHAPING ASSY.
Delete A7J1.
Page 6-12, Table 6-3:
Change A8L1, L2 and L3 to 9140-0210 COIL, FXD, CHOKE, 100 UH 5%.
Page 6-13, Table 6-3:
Delete A8A1 (entire sub-assembly) and add the following:
A8A1 08640-60038 COUNTER/LOCK ASSY
A8A1C1 0180-0197 C: FXD ELECT 2.2 UF 10% 20VDCW
A8A1C2 0180-0197 C: FXD ELECT 2.2 UF 10% 20 VDCW
A8A1C3 0160-3879 C: FXD CER 0.01 UF 20% 100 VDCW
A8A1C4 0160-3879 C: FXD CER 0.01 UF 20% 100 VDCW
A8A1CR1 1901-0050 DIODE: SI 200 MA AT 1V
A8A1CR2 1901-0050 DIODE: SI 200 MA AT 1V
A8A1CR3 1901-0050 DIODE: SI 200 MA AT 1V
A8A1CR4 1901-0050 DIODE: SI 200 MA AT 1V
A8A1CR5 1901-0050 DIODE: SI 200 MA AT 1V
A8A1CR6 1901-0050 DIODE: SI 200 MA AT 1V
A8A1J1 1250-1220 CONNECTOR: RF 50 OHM SCREW ON TYPE
A8A1J2 1250-1220 CONNECTOR: RF 50 OHM SCREW ON TYPE
A8A1K1 0490-1073 RELAY
A8A1K2 0490-1073 RELAY
A8A1Q1 1854-0404 TSTR: SI NPN
A8A1Q2 1854-0404 TSTR: SI NPN
7-15
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