Semiconductor Data - Kenwood TH-F6A Service Manual
Fm transceiver
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Also See for TH-F6A:
- Service manual (157 pages) ,
- Instruction manual (64 pages) ,
- Quick reference (2 pages)
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Pin
I/O Pin name Active level
No.
38
O
LAPS
H
39
O
AFC
H
40
I
RxD1
L
41
O
TxD1
L
42
O
AFV
L
43
O
RESLCD
H
44
O
R0LCD
---
45
O
ELCD
46
O
RWLCD
---
47
O
MIC MUTE
H
48-55 I/O D0-7
---
56-60 I
KEYI1-5
L
61
I
TYPE
L
62
O
96H
H
63
O
ABS
64-68 O
KEYO1-5
L
69
O
LCK
70
I
PTT2
L
71
O
M4SS
H
72
-
---
---
73
O
BVCOS
H
74
O
WFMS
L
75
O
BAMS
L
76
O
DACEN
---
77
O
SPM
H
78
O
BMS
H
79
O
BUSY
L
80
O
BSHIFT
L
81
-
---
---
82
O
VVOXS
L
83
O
VSSBS
L
84
O
APC/BPFA
---
SEMICONDUCTOR DATA
Function
Key, LCD ilumination power
supply
H:ON
Audio amp power supply SW,
key,LCD ilumination, power
supply SW
H:ON
UART data input from PC pin
UART data output to PC pin
AF mute switch
L:DCS,CTCSS ON
LCD driver reset L:Reset
LCD driver data type bit
L:Control H:Display
LCD driver enable
H:Enable
LCD driver read/write
L:write
Micmute switch H:MUTE
LCD driver data line
Key matrix input 1-5
Destination, channel display
mode diode input
9600BPSH:ON
TONE band switch
H:B band
L:A band
Key matrix output 1-5
Shift register enable
H:ON
External [PTT] key input
L:pressed
M4SSW H:ON
Ground
B Band VCO select switch
H:VCO2
W-FM switch
L:WFM
B Band FM detector switch
L:FM,WFM mode
D/A enable
Receiving on mute SW
L:MUTE
Band matching SW
9600bps BUSY output
H:BUSY
Beet shift SW
H:ON
Positive power supply
VOX power supply
VOX ON, at TX:L
SSB power supply
L:SSB,CW
APC & A BPF tuning PWM
output
144,220MHz band
recive
TH-F6A/F7E
Pin
I/O Pin name Active level
No.
85
O
BPFB
---
86
O
VRAS
L
87
O
BEEP
88
I
SI
89
O
CLK
90
O
DATA
91
O
CS
92
O
VTXS
L
93
O
VCVS
L
94
I
VPP/TEST
95
O
RLEDA
L
96
O
TLEDA
L
97
O
RLEDB
L
98
O
TLEDB
L
99
I
PTT1
L
100
O
TXL
H
Function
B band BPF PWM output
input with the bar antenna
A Band receiver power supply
Receiving:L
Beep output
EEPROM data input line
(EEPROM SO pin)
Common clock line
Common data line
EEPROM chip select
L:Enable
Transmission power supply
L:Transmission
B band VCO, PLL power supply
switch
L:B band ON
Flash write 10V application pin
Normally:L
A band busy LED
L:ON
A band transmission LED
L:ON
B band busy LED
L:ON
B band transmission LED
L:ON
PTT SW(main)
L:Transmisson
Transmission VCO1 shift
H:Shift ON
17
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