Kenwood TK-790HB Service Manual
VHF FM TRANSCEIVER
TK-790H(B
SERVICE MANUAL
SUPPLEMENT
This service manual applies to products with 60400001 or
subsequent serial numbers.
)
© 2005-2 PRINTED IN JAPAN
B51-8718-00 (N) PDF
Cabinet (Upper)
(A01-2163-11)
Cabinet (Lower)
(A01-2164-11)
CONTENTS
PARTS LIST ............................................................................................... 2
PC BOARD
FINAL UNIT (X45-3560-10) ................................................................... 4
SCHEMATIC DIAGRAM
FINAL UNIT (X45-3560-10) ................................................................... 8
TK-790H(B
)
PARTS LIST
✽ New Parts. indicates safety critical components.
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
FINAL UNIT (X45-3560-10)
Ref. No.
Address
New
Parts No. Description
parts
FINAL UNIT (X45-3560-10)
C1-6 CK73FB1H102K CHIP C 1000PF K
C8 CK73FB1E104K CHIP C 0.10UF K
C11 CK73FB1H102K CHIP C 1000PF K
C13 CM73F2H180J CHIP C 18PF J
C15 CK73FB1H102K CHIP C 1000PF K
C16 CM73F2H470J CHIP C 47PF J
C18 C92-0726-05 CHIP-ELE 47UF 25WV
C19 CM73F2H151J CHIP C 150PF J
C21 CM73F2H181J CHIP C 180PF J
C22,23 CM73F2H681J CHIP C 680PF J
C24,25 CM73F2H201J CHIP C 200PF J
C28-31 CM73F2H271J CHIP C 270PF J
C32-35 CM73F2H221J CHIP C 220PF J
C37 CK73FB1H102K CHIP C 1000PF K
C38 CK73FB1H103K CHIP C 0.010UF K
C39 CK73FB1E104K CHIP C 0.10UF K
C40,41 CM73F2H681J CHIP C 680PF J
C42 CK73FB1H102K CHIP C 1000PF K
C43 CM73F2H620J CHIP C 62PF J
C44 C90-5299-05 ELECTRO 470UF 25WV
C45 CK73FB1H103K CHIP C 0.010UF K
C46 CM73F2H620J CHIP C 62PF J
C47 CK73FB1H102K CHIP C 1000PF K
C48 CK73FB1E104K CHIP C 0.10UF K
C49 CM73F2H470J CHIP C 47PF J
C50 C90-5299-05 ELECTRO 470UF 25WV
C51 CM73F2H180J CHIP C 18PF J
C52 CK73FB1H102K CHIP C 1000PF K
C53 CC73FCH1H180J CHIP C 18PF J
C55 CK73FB1H102K CHIP C 1000PF K
C58 CK73FB1H102K CHIP C 1000PF K
C60 CC73FCH1H020C CHIP C 2.0PF C
C61 CK73FB1H102K CHIP C 1000PF K
C63 CK73FB1H102K CHIP C 1000PF K
C64 CM73F2H100D CHIP C 10PF D
C65 C92-0729-05 CHIP-ELE 330UF 25WV
C66 CM73F2H360F CHIP C 36PF F
C67 C92-0729-05 CHIP-ELE 330UF 25WV
C68,69 CK73FB1H102K CHIP C 1000PF K
C70 CM73F2H360F CHIP C 36PF F
C71 CM73F2H080D CHIP C 8.0PF D
C72 CM73F2H180J CHIP C 18PF J
C73,74 CK73FB1H102K CHIP C 1000PF K
C83 C92-0606-05 CHIP-TAN 4.7UF 10WV
C84 CK73GB1C104K CHIP C 0.10UF K
C85 CK73GB1E103K CHIP C 0.010UF K
C86 CK73GB1H471K CHIP C 470PF K
C87 CK73GB1H102K CHIP C 1000PF K
C88 CK73GB1C104K CHIP C 0.10UF K
C89 C92-0003-05 CHIP-TAN 0.47UF 25WV
C90 CK73GB1H102K CHIP C 1000PF K
C91 C90-4016-05 ELECTRO 47UF 16WV
C92 CK73FB1H102K CHIP C 1000PF K
C94 CK73GB1H102K CHIP C 1000PF K
Destination
L : Scandinavia K : USA P : Canada
Y : PX (Far East, Hawaii) T : England E : Europe
Y : AAFES (Europe) X : Australia M :Other Areas
Ref. No.
C95 CK73GB1E103K CHIP C 0.010UF K
C96 CK73GB1H102K CHIP C 1000PF K
C98 CK73GB1H102K CHIP C 1000PF K
CN1,2 E04-0154-05 PIN SOCKET
CN3,4 E23-1116-05 RELAY TERMINAL
W1,2 E37-0783-05 PROCESSED LEAD WIRE
W4 E37-0706-05 LEAD WIRE WITH CONNECTOR
W5 E37-0701-05 LEAD WIRE WITH CONNECTOR
L1 L34-1039-05 AIR-CORE COIL
L2 L39-0421-04 COIL
L3,4 L34-1231-15 AIR-CORE COIL
L5 L34-1246-15 AIR-CORE COIL
L6 L34-1247-05 AIR-CORE COIL
L7,8 L34-1232-15 AIR-CORE COIL
L9 L34-1231-15 AIR-CORE COIL
L10 L34-1088-05 AIR-CORE COIL
L11 L40-1885-34 SMALL FIXED INDUCTOR (180NH)
R1 RK73FB2A330J CHIP R 33 J 1/10W
R2 RK73FB2A473J CHIP R 47K J 1/10W
R4 RK73FB2A103J CHIP R 10K J 1/10W
R5 RK73FB2A471J CHIP R 470 J 1/10W
R6 RK73FB2A122J CHIP R 1.2K J 1/10W
R7 RK73FB2A472J CHIP R 4.7K J 1/10W
R8 RD14DB3A3R3J SMALL-RD 3.3 J 1W
R9,10 RS14DB3D2R2J
R13 RD14DB3A3R3J SMALL-RD 3.3 J 1W
R16,17 R92-1221-05 CHIP R 82 J 1/4W
R18 RK73FB2A122J CHIP R 1.2K J 1/10W
R19 RK73FB2A103J CHIP R 10K J 1/10W
R20 RK73FB2A271J CHIP R 270 J 1/10W
R21 RK73FB2A330J CHIP R 33 J 1/10W
R22 RK73FB2A271J CHIP R 270 J 1/10W
R24 RK73FB2A561J CHIP R 560 J 1/10W
R25 R92-1061-05 JUMPER REST 0 OHM
R30 RK73GB1J102J CHIP R 1.0K J 1/16W
R32 RK73GB1J102J CHIP R 1.0K J 1/16W
R33 RK73GB1J103J CHIP R 10K J 1/16W
R34 RK73GB1J102J CHIP R 1.0K J 1/16W
R35 RK73GB1J182J CHIP R 1.8K J 1/16W
R36 RK73GB1J104J CHIP R 100K J 1/16W
R37,38 RK73GB1J103J CHIP R 10K J 1/16W
R39 RK73GB1J273J CHIP R 27K J 1/16W
R40 RK73GB1J183J CHIP R 18K J 1/16W
R41 RK73GB1J153J CHIP R 15K J 1/16W
R42 RK73GB1J103J CHIP R 10K J 1/16W
R43 RK73GB1J273J CHIP R 27K J 1/16W
R44 R92-1252-05 CHIP R 0 OHM J 1/16W
R45 RK73GB1J103J CHIP R 10K J 1/16W
R46 RK73GB1J272J CHIP R 2.7K J 1/16W
R47 RK73GB1J103J CHIP R 10K J 1/16W
R48 RK73GB1J272J CHIP R 2.7K J 1/16W
R49 RK73GB1J154J CHIP R 150K J 1/16W
VR1 R12-6429-05 TRIMMING POT. (100K)
K1 S51-1437-05 RELAY
Address
New
Parts No. Description
parts
FL-PROOF RS
2.2 J 2W
Destination
2
Address
New
Parts No. Description
parts
Ref. No.
D1,2 HSM88AS DIODE
D4 22ZR-10D SURGE ABSORBER
D5 1SS193 DIODE
D6 02CZ10(X,Y) ZENER DIODE
D7 SG-5L(R) DIODE
D10 02DZ5.6(X,Y) ZENER DIODE
D11,12 1SS355 DIODE
IC1 RA30H1317M-31 MOS-IC
IC2,3 OP291GS BI-POLAR IC
Q1,2 2SC2712(Y) TRANSISTOR
Q6,7 2SC2782 TRANSISTOR
Q8 FMC2 DIGITAL TRANSISTOR
Q9 2SD1624(S) TRANSISTOR
Q20 2SC4116(Y) TRANSISTOR
TH1 PTH9M04BC471TS THERMISTOR
- 212-0702-05 INSULATING TUBE
PARTS LIST
Destination
Ref. No.
Address
TK-790H(B
New
Parts No. Description
parts
)
FINAL UNIT (X45-3560-10)
Destination
3
JIHGFEDCBA
+
1
+
TK-790H(B)
1
FINAL UNIT (X45-3560-10) Component side view (J72-0568-12)
2
3
4
5
6
D7
D4
CN3
+B
C73
C52
W2
PC BOARD
C22C23
L2
C21
C24
CN4
GND
C50
C48
C45
EE
C28C30C31 C29
Q6BC
R9
EE
R8
W2
C42
L3
C33 C32
R13
10
11
12
C19
7
8
C65
W1
+
C47
C16
L1
C25
9
+
C67
C74
W4
1
3
E
+B
+B
EE
R10
Q7BC
C35 C34
EE
C38
C39
TH1
+
C18
C13
C15
L4
C37
W1
C3
C8 C
C44
J72-0568-12
13
14
234
IC1
4
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