Kenwood TH-22A Service Manual page 53

144mhz fm transceiver
Hide thumbs Also See for TH-22A:
Table of Contents

Advertisement

EC
SS LrtcttCUMU
SCHEMATIC D
G
|
pro
X58-4090-00
SUB
UNIT
i
:28K238(K17)
PF0310-01 |
!
D1,
:MA362J
POWER
AMP
RIPPLE
| <[ [OSCILLATION _ave]
3 oss
°
:MA360
I
FILTER
>
OS
oT
Ty
:MAT7T
I
d
|
$K238(K17)
~
bE
CN2
2
3
|
oO
Q
>
Qi
¢
*—?
w
I
ao
a
=)
28C4738(GR)
a
a.
son
1
>
>}
a
L
lal%
~ °
RX:3, 03V
Le
2[_3f 47
|
a
-—c
o
e—ik—
TX:0, 03V
1. 56V
TRANSMI! SS/i ON/
Mw
—_——
<=
on
=
op
all
-~$
oy
fe} } |e
om (t]
S
Q4
0, 93V
b11.|
RECEPTION
"eT
OT
IST] | rade 121°
e
28C4808(@)
1. 93V
CHANGE OVER SW
HliiSid
a,
+
RF POWER
RF POWER
_
KE
a
it
=
BUFFER
AMP
AMP
2. 89V
43>
S|
ja
2
3
AMP
0, 22V
1. 22V
:
C32
Bm
ol
[>
yt
clo
RB
28C4083(N, P)
33P
R44
0
wT
+6
$
o
cc
os
& [1p |
wi
82k
| |
C24
Q6
C28
e
ft
AM
eR
LS)
735
=
wr
39P
22P
RT
Qa
Aj ;mjyo
r
=
3
No
o
<
P
Wt
.
.
N
L
ou.
,
Q3
nN
-
om
M
woh
0
>
<
=
26C4808(Q)
4
re
ee
=
oa
a
ron)
Ve)
~
_
:
"
oO
Nw
ne
.
BUFFER
4
ico
3
'
s
iL
-
<
AMP
-
Os
©
re]
2
a
1, 22V
;
N
o
o
_
>
ria
wc
faa
4
NGE OVER SW
L3
cc
ond
|e
ee
"
reo.
it
as
—|
4
Pn
oxs
_
0, 93v
OST
[tt
=
= / 13, 50V
a}
3
f l
°
<
Of
|
[EL:13, 39V
|
©
-|
8
Som
Re
_
a
oy
C3
<
o
o
TRANCEMISS10N/
1000P
C41, 5P
o¢ SW ~.
~
1
——_——4 }J-—4
{t#-——
oN =
19 & =
13
S
S
o
$ ,
-@
o
O
4
~~
Me
a
12P
R12.)
47K
one
x |
CHARGE
TP
3. 64V aI
>
PUMP
.
wo,
~
4
J
R17
R1
R20
a
PROTECTION: (2V
:
"7
Q4
ack
4
2. 2K
=
POWER
jaa
OTECTION:
(2V)
©
=
:
2
ic
28K1824
aX
"L
ZH
PROTECTION
MB1511PFV-G—BND
CHARGE}
= =Q3
=
~~
=
fee)
PUMP
| 2SJ243
we
©
,
=
SW
iP
ote
1
;
tS
oo
+
P
C113
re)
5
2
18
>
|
arte
F
waa| |. 61V
a | o
C4738(GR)
3
1
START UP|
Ri6
al
M
ste
~
DIODE
22K
R26
0
©
7] 3. 39V
A
a
AW
Ee:
16
D4. MA728
>
2
3, 28V
>
a.
6
}15
DC, OC
@
°
'1.8
7
14
2] CONVERTER
_1C2_TC7660MEOA
m6. 82V
rm
x
gg LRE_AMP
g
S)
3
3
—{
x
S
C55
L15
28K1215(E)
;
iz
3
adi
=f
N
2
—ATOP 270nH---4
-
7
m r
tO
7
>a _
SCILLATOR]
o
Ee
at
| r lA
x
153, 0mvy
5
[2 pcaet
"J
|
_
ie
ORM
00
.
0. 88V]
3
5
© oS
NG
©l+ 13 FOND
INTERNAL
VOLTAGEJ6
©
.
r
OP
is
Z
VOLTAGE
VOLTAGE
(LV)
_
oO
no
m
REGULATOR
LEVEL
=
©
oO
S
=
x
03
BSS
OL
_4]CAP-
|
TRANSLATOR
VOUTTS
Jo
aS
_
a
|
=
o
'o
an
| |
.
|
tr
; =
3
sof
q
_
=
we iy
"—*
alata)
nT
2S
=
—>
a.
4
7
|<
Ye)
00
°
a>
Oo
elo
r
uf}
©
x
cPly
=4
|
Locic
i
|
_
°
RE
44
10KX44 J
=
NETWORK
Z
S
Oo
|
©
:
5
{2+
]
7] oO
43)
|
ean
cal
C44
(7)
Q16 2SK879(GR)
rm Lt
0.047H
0. 81V
r—{6
Gy
T
>
To
°
|
fr
aa
C87
-&
oo
oo
| 016
aS]
[NOISE AMP]
45)-~
CURRENT] — —
POWER MODULE
g
3
ie Ma
ie
Q10
390P
LIMIT
Jor
Qe
on
46)
C118
1000P
~
>
|
NOISE
|
47) 4
10}
RECTIFICATION
3 { 3
2 |
:
41)
-—2}—
©
Ba3 eo
& & HAN
-—{ 3 }—
fr Ls al
R79 220K
{9)
an
amend
|
AW
(2)
ENCODER
.
*
0.
sce
16
th is]
12
1
10
_
=<
XF 1
84
~Vik
43}
RGS
s|
ol
45, 050M
6&0
cd
|
<9)
(4)
AW
I
x
4
al
.
MC3372V
44
|
|
nN
al
rc
bh oo
FMIC
|
-
ee)
o
2. O4V
r
T
| Oo
|
[sq TRIGGER |
0
\F
R61, 0, 39
L
R62, 0, 39
=
——
R63. 0, 39
WW
3. 41V
[ osciLLaToR
|
.
Le SIN
wy
a
os)
"
x2
;
oe
5
44, 595MHz
C96...
27P
|
.
it
LL
co7 thse
.
L
=
pte
C114. 1000P |
L20 3
46
1
2. 66V
iywH
Pa
oy
Nicd
0, 84V CHRAGE ON
:
=
Cy
2 om
oY
oT
cal
c-
r
IAGR
AM TH-22A/AT/E
X57-437X-XX
B/4
x—xxX/D208]/D209/D212}D213|
®A
TH-22AT
0-11]
YES | YES | NO | NO
YES
TH-22AT
O-11/
NO | NO | NO | NO
YES
TH-22AT
0-21/
NO | NO
| NO | NO
YES
TH-22AT
0-22/
No | NO | NO | NO
YES
TH-22AT
0-22/
NO
| NO | NO | NO
YES
TH-22AT
0-22]
NO | NO | NO | NO
YES
TH-22A
0-711
YES | YES | NO | NO
[OPTION
TH-22A
0-21]
yes | NO
| YES]
NO
[OPTION
TH-22A
0-22]
No | NO | YES | YES
[OPTION
TH-22A
0-22/
yes | NO | NO | YES
[OPTION
TH-22A
0-22/
NO | NO | YES]
YES
JOPTION
TH-22A
0-23/
NO
| NO
| NO | NO
JOPTION
TH-22E
2~71;
NO
| NO | NO | NO
[OPTION
TH~22E
2-71]
YES | YES | YES | NO
|OPTION
TH-22E
2-721
NO | YES | YES]
NO
[OPTION
TH-22E
2-71]
NO
| NO | NO | NO
[OPTION
TH-22E
2-71}
NO
| NO | NO | NO
[OPTION
(A/4)
1C1
:MB1511PFV-G-BND
1C2
: TCT66Q0MEOA
1C3
:PFO0310-01
1C4
:MC3372V
Q1, 10, 12, 15
:28C4738(GR)
Q2, 11
:2SC4619
Q3
: 283243
Q4, 13
:2SK1824
Q5
:2SK879(Y)
Q6
:2$C4083(N, P)
Q7
:28C4093
Q8
:28C4808(Q)
Q9
:2SK1215(E)
Q14
:2$D1483
Q16
:2SK879(GR)
D1, 3
:MA2S111
D4
:MA728
DS, 18
:DA221
D7
:MA110
D8, 9
:MA77
D11
:M!1809
Diz
2iSS3iz
D13-15
:HVU355
D16
:MA742
D17
> SFPB-72VL.
D20
:MA8062
(B/4)
10201
>LC7387M—-L
1C202
:AT24CO4N10S12, 5
10203
:S-81235PG—P1
1C204
: LM301AD
10205
:S-8073SN-DT
10206
:HD404629B17TF
1C207
> TAT5W558FU
106208
:NJM2070M
10209
: TCTSOBFU
Q201, 209,
:2SK1824
217, 218
Q202, 220
285243
Q203
:DTA11I4EU
Q205
: UMC4_
Q206
: 2SK879(Y)
Q207
:DTC114YE
Q208, 219
:DTA143ZE
Q210, 213, 214 :2SB766(R, S$)
Q211
':28C4738(GR)
Q212
:DTAI44EE
Q215, 216
: UMW1
Q221
:28K1588
D202
:MA8039
D204, D205
:B30-2116-05
D206~213
:MA110
D215
>HN2D01 FU
D216, 220
:MA2S111
D217
:B30-2115-05
D218
:DTZ3,
9(B)
58

Advertisement

Table of Contents
loading

This manual is also suitable for:

Th-22atTh-22e

Table of Contents