Kenwood TK-D240 Service Manual page 13

Pin Name I/O
No.
32 1PINDET I External MIC detection
33 BATT I Battery Level Input
34 RSSI I RSSI Input
35 BUSY I BUSY Input
36 TH_DET1 I Thermistor DET
(Temperature detection for TX)
37 33MSC O 33M Swith Control
38 EN1 I Encoder Input 1
39 EN3 I Encoder Input 3
40 EN2 I Encoder Input 2
41 GRNLED O Green LED Control
42 MIC_MT O MIC Mute
43 EXTSPMT O Speaker Mute
44 ASSTSW O Assist Switch
45 SBC O SB switch control
46 INSPSW O Internal Speaker Switch
47 TEST_TX O
48 TEST_RX I
49 VCAP_1 - 2.2uF
50 VDD - 33MD
51 CML_SSOUT I SPI chip select for baseband IC
52 CML_EPSCLK I Clock for SPI
53 CML_EPSO O SPI output
54 CML_EPSI I SPI input
55 FM_RSTN O Hradwear reset for FM IC
56 FM_CSN O Chip select for FM IC
57 FM_SCLK O Clock for FM IC
58 FM_SDATA I/O Data I/O for FM IC
59 PTT I PTT key
60 TR_SQ O TOR/COR selectable
61 5RC O 5RC
62 CML_RST O Reset for CML
63 CML_CDATA O Command for baseband IC
64 CML_RDATA I REPLY for baseband IC
65 CML_SCLK O SCLK for baseband IC
66 CML_CSN O Chip select for baseband IC
67 TX/RX O VCO TX RX Swith
68 TXD O Serial Data to MIC JACK
69 RXD I Serial Data from MIC JACK
70 SB_DET I Power switch detect
71 PLL_LD I UL for PLL
72 SWDIO I/O
73 VCAP_2 - 2.2uF
74 VSS - GND
75 VDD - 33MD
76 SWCLK I/O
Function
100 VDD
2.5
2.5.1 Main unit (XC1-1162-70)
IC1
IC2
IC3
IC400
IC600
IC601
IC602
IC603
IC604
IC605
IC606
IC650
IC700
IC703
IC704
Pin Name I/O
No.
77 F_CS O Chip Select for Flash
78 F_SCLK O Clock for Flash
79 F_DATAI I DATA Input to Flash
80 F_DATAO O DATA Output for Flash
81 F_WP O Write protect for Flash memory
82 50VC O 5V AVR Control for GPS MIC
83 PF1 I Programmable Function Key Input 1
84 PF2 I Programmable Function Key Input 2
85 SYSCLK2 I CML System clock 2
86 PLL_DATA O Data output for PLL
87 PLL_LE O Chip Select for PLL
88 PLL_CLK O Clock for PLL
89 SWO O
90 SRST I
91 OPTDET I Option Detection
92 EN4 I Encoder Input 4
93 REDLED O RED LED Control
94 BOOT0 -
95 W_N O RX Wide Narrow Band Switch
96 FM_PDN O Power down port for LDO of FM IC
97 INT I Low Battery Interrupt
98 CML_IRQ I Interrupt request for baseband IC
99 VSS - GND
- 33MD
COMPONENTS DESCRIPTION
Ref. No. Part Name
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
Function
Description
DC amplifier
(FREQ/MOD)
PLL System
DC amplifier (CV)
IF System
Voltage detector (INT)
Voltage regulator (50M)
Voltage regulator (50C)
Voltage regulator (50V)
Voltage regulator (33M)
Voltage detector
(Reset)
Voltage regulator (33C)
DC/DC converter
Flash memory
Voltage regulator (33B)
DC amplifier (BPF tune
or APC)
(No.RA035<Rev.001>)1-13