Electrical
Parts
List
—
7D14
Al
HIGH
FREQ
COUNTER Circuit Board
Assembly
(cont)
Tektronix
Serial/Model
No.
Ckt.
No.
Part
No. Eff
Disc
Description
Integrated
Circuits
(cont)
U457
156-0091-00
Presettable
Signetics
low
pwr
N8292A
decade
counter.
Replaceable
by
U459
156-0091-00
Presettable low
pwr decade counter.
Replaceable
by
Signetics
N8292A
U461
156-0091-00
Presettable low pwr
decade counter.
Replaceable
by
Signetics
N8292A
U463
156-0091-00
Presettable low pwr decade counter.
Replaceable
by
Signetics N8292A
U465
156-0091-00
Presettable low
pwr
decade counter.
Replaceable
by
Signetics N8292A
U467
156-0091-00
Presettable low pwr
decade counter.
Replaceable
by
Signetics
N8292A
U469
156-0091-00
Presettable low pwr
decade counter.
Replaceable
by
Signetics
N8292A
A2
LOGIC
Circuit
Board
Assembly
*670-0992-00
*670-0992-01
*670-0992-02
B010100
B010129
B010130
B010214
B010215
Complete
Board
Complete
Board
Complete
Board
Capacitors
Tolerance
±20% unless otherwise indicated.
C520
283-0003-00
0.001
µF
Cer
150 V
C540
283-0003-00
0.01
µF
Cer
150 V
C588
283-0003-00
0.01
µF
Cer
150 V
C604
283-0076-00
27
pF
Cer
500 V
10%
C610
283-0076-00
27 pF
Cer
500 V
10%
C611
283-0212-00
2
µF
Cer
50
V
C621
283-0000-00
0.001
µF
Cer
500
V
C640
283-0003-00
0.01 µF
Cer
150 V
C716
283-0076-00
27
pF
Cer
500
V
10%
C722
283-0023-00
0.1
µF
Cer
10V
C727
283-0076-00
27 pF
Cer
500
V
10%
C735
283-0003-00
0.01
µF
Cer
150 V
C743
283-0076-00
27
pF
Cer
500
V
10%
C765
283-0076-00
27 pF
Cer
500
V
10%
C778
283-0047-00
270
pF
Cer
500
V
5%
C783
283-0076-00
27
pF
Cer
500
V
10%
C788
290-0136-00
2.2
µF
Elect.
20
V
C871
281-0618-00
4.7
pF
Cer
200
V
±0.5
pF
C984
290-0134-00
22
µF
Elect.
15V
C986
283-0111-00
1
µF
Cer
50
V
C988
290-0135-00
15 µF
Elect.
20
V
6-12
Summary of Contents for 7D14
Page 4: ...7D14 ...
Page 11: ...Operating Instructions 7D14 Fig 2 1 7D14 front panel controls and connectors 2 2 ...
Page 33: ... 3 13 Fig 3 11 Logic diagram for Zero Cancel Logic stage Circuit Description 7D14 ...
Page 38: ...3 18 Fig 3 16 Time Base and Control circuit detailed block diagram Circuit Description 7D14 ...
Page 44: ...NOTES ...
Page 46: ...NJ Fig 4 1 Electrode configuration for semiconductors in this instrument I ...
Page 68: ...NOTES ...
Page 96: ... 7DI 4 DIGITAL COUNTER UNIT ...
Page 98: ...GRS 0371 BLOCK DIAGRAM ...
Page 99: ......
Page 103: ...0 0 I 200 mV 500 µs 0 001 200 mV 500 µs 0 001 MHz 00 mV E 00 µs 0 001 MHz ...
Page 106: ...1 ...
Page 110: ...A2 Logic Circuit Board Assembly jQ798i 798 jc743 CR744t uni R724 R742 JL744S FrR796 ...
Page 113: ......
Page 114: ...P 0 A2 LOGIC BOARD ...
Page 121: ... A B D t F H J NPR Tj ZWX V A AC M AEA HUM qAZ DEF HJ N P R S T J V V7X y ABM APAI AA 7DI4 ...
Page 129: ......
Page 130: ...4 7D14 DIGITAL COUNTER ...