Tektronix 7A16P Instruction Manual page 7

7 Α 16 Ρ INSTRUCTION
REV Α JUN 1979 μ
C
ircuit
B
oard R emoval
4-17
R emoval o f LED a nd SWITCH Boards
4-18
R
emoval of ATTENUATOR a nd
A
CTUATOR Boards
4-18
R emoval o f AMPLIFIER, SHIELD, and
PROGRAMMING-LOGIC B
oards 4-19
R ecalibration After Repair
4-2 ρ
R epackaging f or
S
hipment
4-2 ρ
S
ECTION 5 -
C
IRCUIT DESCRIPTION
Introduction
5-1
Block Diagram
5-1
A
ttenuator
5-3
Input and Coupling Circuit
5-3
Χ 10
A
ttenuators
5-3
Buffer Amplifier
5-5
L
ow I mpedance
A ttenuator
5-5
Amplifier
5-6
P
olarity Amplifier
5-6
2 Χ Gain Amplifier
5-6
Gain Amplifier
5-7
P
ositioning Circuit
5 .-7
Signal
S
plitter
5-8
Microprocessor S
ystem
5-9
M
PU a nd Memory
5-9
ΡΙΑ 's
5-9
Power-up Circuit
5-10
Clock
C
ircuit
5-11
Front P
anel Buttons
5-12
Switching
L
ogic
5-12
G ΡΙΒ Interface
5-13
IEEE 488 D ata Bus
5-14
A
cceptor Handshake
5-14
Source
H
andshake
5-14
R
eadout Circuit
5-15
B
asic R eadout Operation
5-15
Summing the Time Slots
5-16
Selecting R ow and Column
C
urrents
5-17
Encoding α Time-Slot
5-18
ΜΡ U Control Example
5-18