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 pP.oto 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 A4Clt11.
Pages 7-11/7-12, Figure 7-6:
Model8690J3
Change Transistors A11Q2, A11Q3, A11Q4, A11Q6, A11Q7, AllQS and A11Q11 to HP Part Number 1S53-0020. (Recom-
mended replacement for 1S50-0062}. ..
Add diode A11CR19. (Connect anode to base of AllQll and cathode to emitterof Al1Q11.) .
Add chassis mounted diode CR6. (Connect anode to
cente~.
conductor ofMARKER output
jac~
&nd cathode to g:round.)
Add chassis mounted diode CR 7. (Connect anode to center conductor of BLANKING o\ltput jack &nd. cathode to ground.)
Change All column of REFERENCE DESIGNATIONS Table to include diode Al1CR19.
Change chassis mounted component column (no heading) of REFERENCE DESIGNATIONS Table to include diodes CR{?
and CR7.
Pag~ 7-14: , · . . . . . .
Substitute the attached AS Assy, Component Identification board photo (Figure 1) for the photo shown in the S690B Manual.
CHANGE 2
Pages 6-14 and 6-15, Table 6-1:
Ch11nge 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
01SO-OOS9
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/SW.
R4 0757-0461 R: FXD MET FLM6S.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 OHM 1% 1/SW.
R9 0757-0447 R: FXD MET FLM 16.2K OHM i% 1/8W.
R10 2100-1759
R: V AR WW 2K 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 0698-3152
R: FXD MET FLM 3.48K OHM 1% 1/SW.