Model 
333AI334A 
SECTION 
VI1 
CIRCUIT  DIAGRAMS 
Section 
M 
diagrams 
as 
well 
as 
component location drawings 
of 
each 
printed 
circuit 
board. 
7-1. 
INTRODUCTION. 
7-2* 
This 
section 
cOntahlS 
circuit 
diagrams 
to 
aid 
in 
7-3. 
Genera schematic notes,  which apply to 
dl 
the 
the operation and maintenance of  the Models 
333A 
and 
334A. 
Figure 
7-1 
is 
an 
internal wiring diagram 
that 
shows 
the 
colors 
of 
the 
circuit  board  wires. 
7-4.  An 
explanation 
of 
terms and symbols used 
on 
Figures 7-2 through 
7-6 
contain  detailed  schematic 
schematic 
diagrams, 
the schematic diagrams 
is 
given below. 
listed 
on 
page 
7-2. 
REFER EN CE DESIGN 
AT1 
0 
NS 
ASSEMBLY 
ASSEMELY 
REFERENCE 
ASSEMEL7 
PART  NUYEER 
DEUWATION  NAME  WXJDES A241 SWASSEMELYI 
- 
--- 
------ 
DENOTES  SIGNAL 
TEST 
VOLTAGE 
JACK  XA2 
IS 
HOUNTED 
ON 
CHASSIS  OR  ANOTHER  ASSEMBLY 
COMPLETE  DESIGNATOR 
IS 
A2R4 
SUBASMBLY 
Of 
A2 
(COMPLETE  DESIGNATOR 
IS 
A2611 
I 
- 
I 
I 
18 
FEMALE  PIN 
I- 
WIRE 
COLOR: 
COLOR 
COOE 
IS 
THE SAME 
I 
1s 
THE RESISTOR  COLOR CODE 
FIRST 
WMEER  INDICATES  EASE 
COlbR 
SECOND 
I 
OFF 
TERMINAL  MAY  OR 
UlJBER INDENTIFIES  WIDER  STdlP,  AND  MAY  NOT 
BE 
NbMEER€D 
WE THIRD INDICATES  THE  NARROWER 
STRIP. 
(&& 
DENOTES  WtiT/RED/TZL  WIRE) 
OR 
STIIND- 
1 
YPLETE 
SMNLITOR 
2 
IS 
AZAIRI 
PARTIAL  REFERENCE  DESIGNATIONS ARE  SHOWN:  PREFIX  WITH  ASSEMBLY  OR  SUBASSEMBLY 
STO-8-2192 
DESIGNATION(S)  OR  BOTH FOR  COMPLETE DESIGNATION 
7-1