Kenwood TK-90 Service Manual page 88

TK-90
Adjustment Points /
TX-RX UNIT (Component side view)
===quJou =E
L120, L181: RX MCF
L122~L124: TX MCF (73.095MHz)
L326, L327: NB gain /
L729, L731: LO2 level /
L451, L452: RF IF gain /
TC702: Lock voltage (VCO2) /
TC703: Lock voltage (VCO1) /
VR251 (USB), VR252 (LSB): Carrier suppresion
VR361, VR362: Current protection pre-adjust
VR362: Over-current protection (Final)
!=E
VR361: Over-current protection (Drive)
!=E
VR851: Selcall /
FINAL UNIT (Component side view)
===cfk^i =E
VR1~VR4: Final idling current /
TC1: Null point adjustment /
88
ADJUSTMENT /
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J1
EXT. SP
CN1
RAT
14S
CN2
8A
RXB
TXB
VR852
TONE
BEEP
14V
AI
AO
8D
TH2
(RED)
(BLK)
W701 CN4
LO1
L181
L122 L123 L124
TGC
L120
W702
LO2
PGC
TP3
AMB
VR361
VR362
TP4
TP1
TP2
VR251 VR252
CAR
5A
REF
AGC
IFGC
DET W701
LO1
VR851
L452 L451
LO1
FRQ
AO
AI
BRD
BRC
CV
L731
L729
L327
L326
NBL
TC1
TPR
VR3
VR2
VR4
TH1
CN5
TC702
TC703
W702
LO2
LO2
NB
W1
(ANT)
CN1
(RX)
YELLOW
14S
VSF
VSR
VR1
CN2
(DRV)
WHITE