Power Amplifier - GE MASTR II Maintenance Manual

C202
JOOO
FROM
~
SEE NOTE 2 I
EXCITER . - - - - -
-•::t
J203 (- .-_-- --
1
C2.70 C271
,OIUF .OIUF
--1 t __ , ---') f -
'
jt,-t-j03
.orliF
l
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+
C234
2.2Uf
CR201
C204
900
L201
I
_L8205
T
120
C235
*
L202
C206
270
L203
8.2
AMPL-1
Q201
R201
*
L
LBI-4896
R202
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DRIVER
Q202
P. A.
Q203
L213
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~~ ~j- 'r~:·J 206 ho
J910
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L220 L221 L222 l223 XMIT
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510
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C211
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L2.07
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8.2
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20
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C258
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L225
3.3
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L210 SEE NOTE I
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C219 C220 C221 I
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R223
3.9K
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R208
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5.4V
i
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:;>2.15K
:~liK ~.~i~ - - -
1
I 9 8 7 6 5 4 3. 2 I CR295
I
J
205
R:
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IBK
J
t - - - - t
CR205
TO TO
I
J205 METI:..RING J910-39 J9]0-40
~ 0 0 0 0
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o
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TOP VIEW
POWER CONTROL
(19R622106, Rev. 0)
I --------~S~E~E~N~O~TE~2
1
c~sr
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L
LOW PASS FILTER
I
_ _ _ _ _j
- - -
LL I L M
I
I
H
COMP !DENT.
25-30 MHZ
'
30-36 MHZ 36-42MHZ 42-50 MHZ
-- -J
C207 390 330 270 I 220 I
i-----c2o8- ~~- -~-
- - - - -
I
270 270 220
I
'
C209
39o-
-T
=
2io
270 _l__2!._0 _ _ ,
'
--+
I
C210 330
!
220 _2~0
_ _ 1 180 I
'
C213 1000 1000
!
660 I
680
~- -
'
C214 56
56
47
39
- - - - - +
C215 56 56
'
47
39
. - - - -
C217 330 330 ! 270 220
~~-~-~- 330 270
270
'
--
C219
j ~9_?
330 270 270
'
C220 I 330 270 270 180
- -
~~221
! 330 270 270 180 I
1000_
- - - - -
s~~ [---- _!_0_90_ 680
'
680 I
1 C224 500 50C 430
I 360
c----
!--
C2~~
__ 500
- - I _
500 _"!_~~
-
_3~~-1
- - -
f---§-2~-
200 2"0 t-~20 180
- - - - -
, C235 270 27C 220 lBO
c----
220~-
~~6-
_,s_o __
100 56
r-----100
-
~~ ---'
1~3!. ___
-
?20 150
56 ' -----,
1
C250 100 100
100 100
r - - - --
----
~258 lOG
- -
l______g_£5~
- -
100 i
-
I
-----~-
- -
~- 12_2~0 82 68 56 51
--
-
C261 !10 01 68 56
- - - - - --
C262 15
I 13
I~
10 I
I
- - - - -
- - - - -
----
--9~~-82-~
C26~ 140 I 110
C2G4
- - - - - - - - j
12C 100 82 75
1 C26_? _ _ 82
_68 -
56 ! 51 I
-
-
+--- _ ________,_ - - - - -
I R201 ' 10
10 20 __ 1_
~-o-~'
I
- - - - -
R202
5.6 5.6 2.7
I
1.2
f - - -
I
~0_3_ 56 5_6 _ _
-
2.7 1.2
l_
R204 5.6
'
5.6 2 7 1.2 I
--
R207 10 ' IO i 20
20
I
-
--
!
VOLTAGE READINGS
VOLTAGE REACINGS ARE TYPICAL READINGS
MADE WITH THE TRANSMITTER KEYED, AND
MEASURED WITH A 20,000 OHMS-PER-VOLT
METER WITH REFERENCE TO A- ANO NOT
CHASSIS GROUND. AN RF CHOKE (25-50
MICROHENRYS) IS USED IN THE HUT METER
LEAD TO /IVOID DETUNING RF" CIRCUITS
NOTE: READINGS AT 0201 COLLECTOR AND
IN THI POWER CONTROL CIRCUIT WERE
TAKEr~ WITH THE TRANSMITTER AOJUSTED
FOR 50 WATTS OUTPU":". THESE READINGS
WILL VARY DEPENDING ON THE SETTING
OF POWER .ADJUST CONTROL R216.
- - - - - S E E
:a--=-;
J202 TO RCVR
NOTE 2
J208
SHIELD
OF W904
ALL RESISTORS ARE l/2 WATT UNLESS
OTHERWISE SPECIFIED AND RESISTOR
VALUES IN OHMS UM...ESS FOLLOWED BY
K: 1000 OHMS OR MEG ~ I 000 000 OHMS ·
CAPACITOR VAWES IN PftOFMAOS {fOUAL
ID MICROMICROFARAOS} UNLESS FOLLDWED
BY UF: MICROFARADS. INDUCTANCE VALUES
IN MICROHENRYS UNLESS FOLLO'WEO BY
MH~ MILLIHENRYS OR H~HENRYS.
~~~RX'!---=;:;- R~El-:-~-~;---R~"T;.o
EJu.PME,'JTl
jP!..R"ORMANCE,
Kf:PLAL~C:ME,\1";" c·~
.:.rnl
SER',ICE PARr S,-h)...;·.G JE M.C.fk
Oto.~Y
\11/oT'"i.
lA
CJMPONENT H.',v"I."JG T:IF: SP'.:Cif'CAT:GNSi
"SH:)\1,~ ~-~!:.._
I'AR1:3 __
~-'2:
F;"8
:_n~FAf<
f. J
NOTES:
!. CALLED FOR ON PLI9C321295.
2.50.f1 MICRO STRIP, PART OF PWB.
3. ih-INDICATES A-
~
-INDICATES VEHICLE GROUND
PA
ASSE~B~}REV
- - -
---~
- - -
__ 1L TR
-
~129sGI
1
"
oow
19 C321295G2 I
""' ""'
19C3212s5
G3
Z>O
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~0: 1 !9-C321295G4
I
119C321295 G9 I
I
E N
REV
1
CPNT BD AS'
iREV FREQ.
RANGE
H ATSI KASM LTA! .
~' ilTR
'
I 98219688G I
~119D417968G!
I i
25-30 MHZ - 1
I9D417968G2 I
___j
30-36 MHZ :
~~9D41~9~8_G:- ~--36-42 MHZ~
1 19D4179SBG4 1
42-50 MHZ
1
j
1!9D4l7968 Gl
!
25-30 MHZ
!19C321295GIO
Cc:c-:-:c::-cc-:c:-::-c-: --;
19 B 2. I 9 6 S.S G 13
19C321295GJ I
~190417968
G2
~417968~
I 36-42 MHZ
19C321295Gf2 I19D417968G4 42-50 MHZ
L__L__ _ _ _ _ L _ _ _ L _ - - - - - _ _c_ _ _ _ __j_ -~---~
SCHEMATIC DIAGRAM
25--50 MHz, 50-WATT POWER AMPLIFIER
19C321295G1-4
&
G9-12
Issue 1 15