Figure 8-23. A1 ↔ A3 Connector Pin Table - HP 5501B Operating And Service Manual

A1J1 A3J1
PIN PIN
1 13 Warmup
2 14 +5V
3 15 Digital Ground
4 16
5 17 +15V Heater Control Drive
6 18 +15V
7 19 Digital Ground
8 20 -15V
9 21 -15V Heater Control Drive
10 22
11 23 +15V Signal Return Ground
(Analog)
12 24 REF
13 1 READY
14 2 HEATER SENSE
15 3 Digital Ground
16 4
17 5 +15V Heater Control Drive
18 6 +15V
19 7 Digital Ground
20 8 -15V
21 9 -15V Heater Control Drive
22 10
23 11 +15V Signal Return Ground
(Analog)
24 12 ~REF
8-52
A1 ↔ A3 Connections
DESCRIPTION
——
——
——
——
Figure 8-23. A1 ↔ A3 Connector Pin Table
TO
Through
A1R10 to A1Q4
Through
A1R18 to A1CR3,
and A1J5(C)
5501B Circuitry
—
A1Q8
5501B Circuitry
5501B Circuitry
5501B Circuitry
A1Q5
—
A5 Cathode, Line
Driver Analog
Ground
Through
A3C34, A3L5,
to A3U16(1,2)
READY LED
A1DS8 and A3DS1
Through
A3R21 to Control (A1TP3
A3U14(2)
5501B Circuitry
—
A1Q8
5501B Circuitry
5501B Circuitry
5501B Circuitry
A1Q5
—
A5 Cathode, Line A1J6(B)
Driver Analog
Ground
Through A1J6(D)
A3C32, A3L4
to A3U16(3,4)
HP5501B
Service
FROM BLOCK
A3U3B(6)
Ⓕ
A3U7(3)
Ⓒ
A1J5(D)
Ⓒ
—
—
A3U20(12)
Ⓘ
A1J5(A)
Ⓒ
A1J5(D)
Ⓒ
A1J5(B)
Ⓒ
A3U20(13)
Ⓘ
-—
—
A1J6(B)
Ⓚ
A1J6(C)
Ⓚ
Flashing:
Ⓕ
A3U19(6)
On Steady:
A3U19(10)
A5 Heater
Ⓙ
or A3TP11)
A1J5(D)
Ⓒ
—
—-
A3U20(12)
Ⓘ
A1J5(A)
Ⓒ
A1J5(D)
Ⓒ
A1J5(B)
Ⓒ
A3U20(13)
Ⓘ
—
—
Ⓚ
Ⓚ