Control Unit (X57-6820-Xx B/5) - Kenwood TK-5210 Service Manual

TK-5210
Pin
Name I/O
No.
37 CH_B
38 25D
39 CH_C
40 15D
41 CH_D
42 15D
43 PTT
44 5M
45 NC
46 5M
47 oE
48 LCDV
49 DGND
50 DGND

Control unit (X57-6820-XX B/5)

Pin
Name I/O
No.
1 GND
2 GND
3 MIC
4 MICE
5 SP+
6 PWR
7 SP+
8 15V
9 SP-
10 SB1
11 SP-
12 +B
13 AF
14 +B
15 VOL
16 +B
17 CLK
18 +B
19 GND
20 LRST
21 KIN
22 28M
23 EXAFC
24 PSW
25 KES
26 INAFC
27 DAT
28 ECSW
29 TGL0
30 33M
31 TGL2
32 33M
33 TGL1
34 33A
20
TERMINAL FUNCTION
Function
I Rotary switch input 2
- 2.5V
I Rotary switch input 3
- 1.5V
I Rotary switch input 4
- 1.5V
I PTT input
- 5V
- No connection
- 5V
O Shift register OE
- LCD contrast control voltage
- GND
- GND
Function
CN601
- GND
- GND
O External MIC output
- External MIC GND
O BTL output + for external speaker
I Power control input
O BTL output + for external speaker
- 15V
O BTL output - for external speaker
O Battery Level output
O BTL output - for external speaker
- Power input after passing through the fuse
I Audio input
- Power input after passing through the fuse
O Volume level output
- Power input after passing through the fuse
I Clock data input
- Power input after passing through the fuse
- GND
I LCD reset input
O Key output
- 2.8V
I External AF input
O Power output after power switch
I Key counter clear to send
I Internal AF input
I Data input
I Echo cancel MIC switch
O Lever switch output 0
- 3.3V
O Concentric switch output 2
- 3.3V
O Concentric switch output 1
- 3.3V
Pin
Name I/O
No.
35 CH_A O Rotary switch output 1
36 33A - 3.3V
37 CH_B O Rotary switch output 2
38 25D - 2.5V
39 CH_C O Rotary switch output 3
40 15D - 1.5V
41 CH_D O Rotary switch output 4
42 15D - 1.5V
43 PTT O PTT output
44 5M - 5V
45 NC - No connection
46 5M - 5V
47 oE I Shift register OE
48 LCDV - LCD contrast control voltage
49 DGND - GND
50 DGND - GND
CN603
1 INT SP- O BTL output - for internal speaker
2 INT SP- O BTL output - for internal speaker
3 INT SP+ O BTL output + for internal speaker
4 INT SP+ O BTL output + for internal speaker
5 INT MIC+ I Internal MIC input
6 INT MIC- - Internal MIC GND
CN604 (K2 and K3 models only)
1 A0 I Adrress bus 0
2 GND - GND
3 WR I WR bus
4 RD - No connection
5 D7 I/O Data bus 7
6 D6 I/O Data bus 6
7 D5 I/O Data bus 5
8 D4 I/O Data bus 4
9 D3 I/O Data bus 3
10 D2 I/O Data bus 2
11 D1 I/O Data bus 1
12 D0 I/O Data bus 0
13 GND - GND
14 LCS I LCD chip select
CN751 (K2 and K3 models only)
1 V4 - LCD drive power supply
2 V3 - LCD drive power supply
3 V2 - LCD drive power supply
4 V1 - LCD drive power supply
5 V0 - LCD drive power supply
6 VR - V0 voltage adjustment terminal
7 NC - No connection
8 NC - No connection
9 NC - No connection
10 NC - No connection
11 NC - No connection
12 NC - No connection
13 Vout - Raising voltage output
14 VDD - 3.3V
Function