Kenwood TM-2550A Service Manual page 38

CENTER-DETECTOR UNIT (X59-1030-10) :
Component side view
Qi: 2SC2712(Y) 1C1: NJM4558M
D1 :188184 D2: 185181
MIC AMP, S-METER UNIT (X59-1010-10)
Component side view
Q1 : 2SC2714(Y) 1C1 : NJM4558M
D1: 188181
SQUELCH CONTROL UNIT (X59-1040-10)
Component side view
IC1 : NJM4558M
D1: 18$184 D2: 185181
Q1,5: 2SC2712(K) Q2,3: 2SC3295(B) 04,6 : 2SC2712(BL)
D1: 188184
B
E B
Bec ae
oF
E
6
Q1—4 : 2SC2712(Y)
: D1: 1$S181
|
2SC496
DTC124EF DTA1I14YF
DTC114ES
DTC143TS
IN
IN ee
IN
OUT
OUT
a
GND
Voc
GND
OUTPUT
GND
(Case)
inpuy OUTPUT | TAAL !
INPUT
- COMPOUND UNIT (X60-1280-XX) Component side view
-10 : TM-2550A (K1,M1,M3), TM-2530A (K2,M2,M4)
-51 : TM-2550E (T,W)
25C496(Y)
DTC114ES
IC4
3SK74(L) 03,4: 2SC2668(Y) O5:
Q2
3S K129(S)
010,11
MB3756
2SC1775(E)
TA7761P
08
2SC2458(Y)
u@PC1241H
IC5 (TM-2550E) Q6,7,9
NJM78MO6A
IC3
.
IC2
IC1
NE555P
IN6O0 D7: MTZ11J5C
IN60A
D1,2,5,6,8 : 181555 or 1N4448 D3,4
D9 (TM-2550E )
MTZ5.6JC D10
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oc
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NY NY] OV
S|/2\5
FILE IE
Used, X : Not used
O
IC1
ICZ
ICE
X
O-2030+
x5