HP 8690B Manual Change page 4

Page4
CHANGE 1 {cont'd)
Pages 7-9/7-10, Figure 7-5:
Substitute the attached AS Assy board photo (Figure 3) for the photo shown,in the manual.
Add 7S.7V breakdown diode A4CR11. (Connect anode to ground and cathode to A4R34, A4C8 junction.)
Change the A4 column of REFERENCE DESIGNATIONS Table to include diode A4CR11.
Pages 7-11/7-12, Figure 7-6:
Change Transistors A11Q2, A11Q3, A11Q4, AllQ6, AllQ7, AllQS and AllQll to HP Part Number 1S53-0020. (Recom-
mended replacement fqr 1S50-0062).
Add diode A11CR19. (Connect anode to base of AllQll and cathode to emitter of Al1Q11.)
Add chassis mounted diode CR6. (Connect anode to center conductor of MARKER output jack and cathode to ground.)
Add chassis mounted diode CR7. (Connect anode to center conductor of BLANKING output jack and cathode to ground.)
Change All column of REFERENCE DESIGNATIONS Table to include diode A11CR19.
Change chassis mounted component column (no heading) of REFERENCE DESIGNATIONS Table to include diodes CR(?
and CR7.
Page 7-14:
Substitute the attached AS Assy, Component Identification board photo (Figure 1) for the photo shown in the S690B Manual.
CHANGE2
Pages 6-14 and 6-15, Table 6-1:
Change A14 Heater Supply Assy to HP Part Number OS690-60054 (New board).
Add the following A14 Assy Components (Parts list for new A14 Assy).
C1 0160-3534 C: FXD MICA 510 PF 5% 100 VDCW.
C3 0180-00S9
C: FXD ELECT 10 UF -10% +100% 150 VDCW.
C4 0160-3539
C: FXD MICA S20 PF 5% 100 VDCW.
C5 01S0-0141
C: FXD ELECT 50 UF +75 -10%50 VDCW.
C6 0160-2205
C: FXD MICA 120 PF 5%:
C7 01S0-0094 C: FXD ELECT 100 UF 25 VDCW.
CR1 1902-0041
DIODE, BREAKDOWN: 5.11 V 5% 400 mW.
CR2 1901-0025 DIODE, SILICON 100 MA/1V.
CR3 1901-0025
DIODE, SILICON 100 MA/1 V
CR4 1901-0025
DIODE; SILICON 100 mA/1V.
IC1 1S20-0196
IC: VOLTAGE REGULATOR.
IC2 1S20-0196
IC: VOLTAGE REGULATOR.
IC3 1S20-0196 IC: VOLTAGE REGULATOR.
Q1 1S54-0062 TRANSISTOR: SILICON NPN.
R1 0757-041S
R: FXD MET FLM 619 OHM 1% 1/SW.
R2
0757-0440 R: FXD MET FLM 7.5K OHM 1% 1/SW.
R3 0757-043S
R: FXD MET FLM 5.11K OHM 1% 1/SW.
R4 0757-0461 R: FXD MET FLM 68.1K OHM 1% 1/SW.
R5
0757-0473 R: FXD MET FLM 221K OHM 1% 1/SW.
R6 0757-0401
R: FXD MET FLM 100 OHM 1% 1/SW.
R7 0757-0416 R: FXD MET FLM 511 OHM 1% 1/SW.
RS 069S-3156 R: FXD MET FLM 14.7K OHM1% 1/SW.
R9
0757-0447 R: FXD MET FLM 16.2K OHM 1% 1/SW.
R10 2100-1759 R: VAR WW2K OHM 10% LIN 1/2W.
Rll 0757-0441 R: FXD MET FLM S.25K OHM 1% 1/SW.
R12 0757-0199 R: FXD MET FLM 21.5K OHM 1% 1/SW.
R13 069S-3154 R: FXD MET FLM 4.22K OHM 1% 1/SW.
R14 0757-0416 R: FXD MET FLM 511 OHM 1% 1/SW.
R15 0757-02SO R: FXD MET FLM l.OK OHM 1% 1/SW.
R16 0757-02S9 R: FXD MET FLM 13.3K OHM 1% 1/SW.
R17 069S-3152 R: FXD MET FLM 3.4SK OHM 1% 1/SW.