Block Diagram - Kenwood TM-V71A Service Manual
144/430 (440) mhz fm dual bander
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Also See for TM-V71A:
- Instruction manual (60 pages) ,
- Instruction manual (107 pages) ,
- Service manual (4 pages)
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TM-V71A/V71E
DISPLAY UNIT
(X54-359)
LCD, KEY illumination
Q904,905
AMBER LED
12A02CH
GREEN LED
Q902,903
2SC4617(R)
PB 10V
Key, VR SQ input
KEY, VR A,B
INPUT
TX-RX UNIT
(X57-731) (D/6)
CONTROL SECTION
X916
11.0592MHz
SW
Q916,Q917
DTC144EE
EEPROM
IC916
AT25256A10TU27
MIC AMP
MIC
IC802
NJM2100V-ZB
MIC ALC
D801: DAN222
D802: 1SS372F
INT
Q801: 2SC4919
SP
SP1
SP2
86
BLOCK DI A GRAM
LCD
IC906
PT6554LQ
LCD DRIVER
X901
11.0592MHz
RESET
MPU
IC905
BD4840FVE
IC903
3062LFGPU****
BUFFER
IC901,902
TC4S81F-F
Buffer
IC951
TC74HC4050AFT
MPU
RESET
IC918
IC920
3062LFGPU****
BD4840FVE
X917
4.19MHz
DTMF IC
IC921
LC73881M-E
Pre-EMP,
MOD AMP
DTMF
TONE
IC803
NJM2100V-ZB
SPL FILTER
AF control IC
Q805,808
IC806
2SC4617(S)
BU8241FS
Q809,812
2SK1830F
IC804
M62364FP-F
MUTE SW
AF AMP, MUTE SW
IC801
LA4629
Q803,804,816
DTC363EU
Q802
KRC102S-P
IC907
PT6554LQ
5V AVR
IC904
TA7805FQ
PB 10V
PB
10V
IC952
BAJ0CC0T
5V AVR
IC953
SB
TA7805FQ
INT
IC919
BD4840FVE
Q918
Q954
DTC144EE
DTA123JUA
D916
Q952
02DZ18F-X
DTC144EE
Q953
CPH6122
SCB
Q951
DTC144EE
TONE FILTER
IC805
NJM2112V-ZB
SW
IC917
TC4W53FU-F
MOD A
MOD B
TCXO A
IC807
TCXO B
TC7W66FK-F
SW
SW
Q817
2SK1824-A
De-EMP, AF AMP
Q806,810
Q807,811
2SC4617(R)
PC TERMINAL
DATA TERMINAL
TX-RX UNIT
(X57-731) (A/6)
TX-RX SECTION
X1
TCXO
IC1: MB15A02PFV2E1
TCXO A
12.8MHz
CHARGE PUMP
Q2: 2SA1774(R)
Q3: 2SC4617(R)
D2: DA221
TCXO A REF
X66
TCXO
IC66: MB15A02PFV2E1
TCXO B
16.8MHz
CHARGE PUMP
Q67: 2SA1774(R)
Q68: 2SC4617(R)
D67: DA221
16.8MHz
TCXO B REF
TUNE IC
IC667
BU2228FV
AF SW
IC666
BU4053BCFV
S5M
LEVEL CONVERTER
IC606
ADM202EARUZ
AF AMP, LIMITER
Q606,607
2SC4617(R)
D607,609
DA221
D608
1SS400
PLL A
VCO
Q705,706: 2S
Q704: 2SJ347
Q703: SSM6L
Q701,702: DT
Q707: 2SC510
D703~705,707
D710: 1SV278
D701,708: HS
Q1,4: 2SC4617(R)
D709: 1SV323
D3,4: 1SS400
RIPPLE FILTER
RF AMP, SW
Q5: 2SC5636
D10~13,20,21: HSC27
SW
Q73,74
DTC144EE
PLL B
V
Q755,756:
Q754: 2SJ3
Q753: SSM
Q751,752:
Q757: 2SC
D753~755,
D760: 1SV2
D751,758:
Q66,69: 2SC4617(R)
D759: 1SV3
D68,69: 1SS400
RIPPLE FILTER
RF AMP, SW
Q70: 2SC5636
D30~35: HSC2
SW
Q8,9
DTC144EE
FWD REF
REV REF
BPF A
BPF B
TCXO A REF
TCXO B REF
45
IF DET
IC486
TA31136F
SW
Q486~488
2SK1830F
Q493
CF486
DTA114EUA
455kHz
D486,487
WIDE/NA
DAN235E
AM DET
Q489,491,494
2SC4617(R)
Q490,492
2SK1830F
D489
HSC277
TRIPLER
Q547
16.8MHz
50.4MHz
2SC4649
(N,P)
IF D
IC 546
TA31136F
SW
Q546,548,549
2SK1830F
Q550
CF546
C
DTA114EUA
450kHz
4
D546,547
WIDE/NAR
DAN235E
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