HP 214B - Page 98

Service
Table
8-3. Schematic Diagram Notes (2 of 2)
b:
3~
t ~-.;
PIN L
: NO
~!IT
,
I I
, ,
Terminals and Connectors
Soldered conn.ction .
Examp le of '.x.d male and 'emale connlCtors with
plug and socket and c antacI designators , eg o p .e .
board edge conn.ctor and socket.
example of bulkhe~ mounted co axial socket WI !h
free coa.ial plug and cable.
eKample of coaxial c able With termmat lo n s oldered 10
p.e. board .
Logic Symbols
POsit ..... . l og ic IS u~d unl.ss othe rWise specified .
~s
~
4·j nput NOR gate
Inverter
Model 214B
open coliKtOf
Output IS hlgh 'I mpedance
when EN IS falH , 'H eipeC '
t.v. of I"PUt. Normal
o pe r ati on when EN IS true .
P
'
Comp ltll . functions
Co ntr Ol func t ion
ContrOl functions ;
Analog Symbols
Volt. sour ce
Current source
8- 4
Dependency
Control block
G-9at • • C-cl ock
EN ·3 ... t,t • . R·r ... t 10 lowl
SoWt (0 highl. t (!.) -count up (down I
.... shih > edgt -tflogered_
Logi C function ~Log..;..iC_fu_n_c_t i _o_n'_ : ________ -i
r'----'-, __ -- Data block
REG -register. SEL-wlector
CNTR-counllr . (DEIMUX- ldelmull iple .. ,
A
QAI
Outp ut depend, on A and G 1
B
OB2
- Output depend, on Band G 2
3 fLf'L1.
~
Wifed AND connectio n
Wired OR connection
Scans by ArtekMedia => 2009