Midland CT22 CB.pdf

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1、PTT SW RF UNIT CONTROL UNIT Q217 SWQ218 SW V.DET Q215 V.DET Q216 Q219 SWV.REG Q213 V.REG Q214 ZE 143 DTA 18241824 2SK2SK SWSW UMW1UMW1 2SB (RS)(RS) 766766 2SB D217 TX LED VDD DTMF ENC/DEC LC7387M-L IC202 4.19MHZ Q208 SW Q204 SW Q220 SW ET TX MUTE AFC1 3TS AFCO EL H/L SAVE 3RC EP BEEP TO BUSY X1 TEST

2、 REM SM BATT UL SDO UP DN 2MHZ MPU IC206 V.REG S-81235PG IC203 VOLTAGE DET S-80730SN IC205 DET TC7S08FU IC209 EEPROM 24C16 IC202 LCD ZEZE 143143 DTADTA LAMPS 243 2SJ MONI SW LAMP SW DTMF CALL * 7 0 8 # 9 D C B654 A321 Q201 SW DC AMP LM301AD IC204 YE 114 DTC Q207 SW Q206 C.REG (Y) 879 2SK HI Q202 SW

3、Q205 SWD202 V.REF 1824 2SK 204 2SJ UMC4 8039 MA Q221 SW Q209SW PRE-EMPH 1824 2SK 1588 2SK AF PA NJM 2070 75558 AMPMIC DEV V.REG Q210 (RS) 766 2SB D218 V.REF 3.9B DTZ Q220 V.DET 4738 2SC D220 SW 2S111 MA Q212 SW EE 144 DTA CURR.REG Q16 ENCODER ROTARY (GR) 879 2SK MOD 3T TX 3C CK 3R UL E DT ASB EP RB

4、APC DN 3M UP CI SM AF BUSY SB MUTE VOL POWER SW D17 D18 V.REF Q14 C. REG 221 DA 1483 2SK BAT- BAT+ 1824 2SK DE-EMPHQ12 HPFNOISE AMP Q10 NOISE DET D16 4619 2SC 44.595MHZCF1CD1 FM IF SYSTEM IC4 MC3372D (GR) 4738 2SC (GR) 4738 2SC 742 MA MCF 45.05MHZ Q8 MIXER TP (Q) 4808 2SC 355 HVU 270270 1SV1SV (E) 1

5、215 2SK D12 BAND SW 312 1SS PROTECTOR THERMAL ANT CONNECTOR Q17 TH1 t (GR) 4738 2SC D11 ANT SW 135 RLS IC3 RF PA MODULE POWER Q7 RF AMPD9 T/R SWQ6 RF AMP D8 T/R SW D7 T/R SW MA77 4093 2SC DA110 MA77 (N,P) 4083 2SC 110 MA D303Q301 OSCQ303 AMP Q304 AMP Q2 SWD304 SWD301,D302 3C CK EP DT 4619 2SC (GR) 4

6、738 2SC IC1 MB1511 PLL DC-DC CONVERTER TC7660 (Y) 879 2SK 243 2SJ 1824 2SK LOOP FILTER VCO UNIT (Q) 4808 2SC (Q) 4808 2SC EE 144 DTC (K17) 238 2SK MA77 MA360 MA362 PTT 3TSSAVE 3RC 3R 3M 3TSB3C 3M C1 PD SD ACK STD SB VDD 3M LAMP KEY MATRIX&BACK LAMP OSC2 OSC1 RESET INT4 3MSVDDCKDIAPC RB 3T EL SB H/L

7、3CAFC ASB AE BEEP TO BEEP/DTMF AFC1 MUTE 3C APC ASB SB MUTE C1 3R SM BUSY 3R RB 3T 3T APCSB AMP Q2 3C 3M 12.8MHZ UL DS SW LPF Q1 3C 3C MOD CV OUT OUTP TX R208 2.2K C212150P C213 470P _+ 8765 4321 IC204 LM301AD B C E Q203 DTA114EU C210 470P R291 0 R207 120K R209 1K R211 56 R212 6.8K C274 470P Q206 2S

8、K879(Y) D202 MA8039 C214 470P Q202 2SJ243 VR201 470 R210 27 Q201 2SK1824 R293 100K C211 470P Q205 UMC4 C217 470P + C208 470U/4V C205 470P OUT GND IN IC203 IC203 S-81235 C207 470P + C268 1U/6.3V C209 0.1U C206 470P L203 B C E Q208 DTA143ZE R278 100K R279100K TEST CK SDAGND A2 A1 A0VDD 8 7 6 54 3 2 1

9、IC202 AT24C16-10SI-2.5 OUT GND IN IC205 S-80730SN-DT R277 1K R213 1M C2650.1U VDD VSS IC209 TC7508FU R287 47K Q220 2SJ243 C267 0.33U R29647K VT(ref) TONER TONEC VCC V3 V2 V1 COM4 COM3 COM2 COM1 SEG52 SEG51 SEG50 SEG49 SEG48 SEG47 SEG46 SEG45 SEG44 SEG43 SEG42 SEG41 SEG40 SEG39 SEG38 SEG37 SEG36 SEG3

10、5 SEG34 SEG33 SEG32 SEG31 SEG30 SEG29 SEG28 SEG27 SEG26 SEG25 SEG24 SEG23 SEG22 SEG21 R73/SEG20 R72/SEG19 R71/SEG18 R70/SEG17 R63/SEG16 SEG15 R62/ SEG14 R61/ R53/SEG13 R52/SEG12 R51/SEG11 R50/SEG10 R50/SEG9 R43/SEG8 R42/SEG7 R41/SEG6 R40/SEG5 R33/SEG4 R32/SEG3 R31/SEG2 R30/SEG1 R23/SO R22/S1 SCK R21

11、/ R20/EVND EVNB R13/ R12/TOD R11/TOC R10/TOB R03/INT4 R02/INT3 INT2 R01/ INT1 RO0/ INT0D11/ STOPCD10/ D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 GND X2 X1 RESET OSC2 OSC1 TEST AVss AN3 AN2 AN1 AN0 AVcc HD404629/HD4074629 IC206 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

12、 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 R206 1K C202 39P R203330 8910 11 12 13 14 5764321 VSS NC DSC1 DSC0 PO NC IN LB SD CK STD BST N

13、C VDD IC201 LC7387M-L R204 10 X201 4.19MHZ C203 39P R205 10 L201 C201 0.047U R20210K R20147K CP201 100K*4 CP202 1K*4 S AL - - TX. S R+ CTDT PAG E LBUSYAPOF 2.5 5 7.5 . S26 S25 S24 S23 S22 S21 S20 S19 S18 S17 S16 S15 S14 S13 S12 S11 S10 S9 S8 S7 S6 S5 S4 S3 S2 S1 C1 C2 C3 S27 R27310K + C204 22U/16V R

14、217 220K R21656K R21522K C220 0.01 C219 0.047U C221 43P R219 1K R220 0 X202 2MHZ C222 39P R2181M L204 R22110 R22410K D205 TLG1002 D204 TLG1002 R280 10 R223 10 R22210K R252 4.7K R297 1K R225 4.7K C223 0.1U R226 4.7K C224 0.1U C225 0.018U R228 68K R274 47K C226 0.01U R229 15K C227 4700P C280 0.0033U R

15、230 82K C228 470P R231 47K R232 220K CP206 1K*4 CP203 1K*2 CP204 1K*4 CP205 1K*2 D206 D207 D208 D209 D210 D211 D212 D213 D215 HN2D01FU D216 MA2S111 R276 10K R40047K KOUT0 C235 0.022U R238 82K - -+ + 8765 4321 IC207TA75W558FU R239 390 R237 100K C232 470P + C240 2.2U/4V + C239 2.2U/4V R240 4.7K R242 5

16、6K R241 22K R244 4.7KR245 1.2K C234 1800P R235 4.7K R236 100K C233 150P C231 470P + C229 4.7U/6.3V C230 0.01 R234 8.2K R294 10K VR202 10K TH201 50K + C258 1U/6.3V Q209 2SK1824 C259 470P + C236 0.22U/35V C237 0.01U C238 0.01U R246 10 + C241 4.7U/6.3V R249 1.8KR248 470 R247 100 KOUT1 CP207 2.2K*4 CP20

17、82.2K*4 R251 100 B C E Q204 DTA143ZE 6 5 4 3 2 1 CN201 R292 0 -+ 8 7 6 54 3 2 1 IC208 NJM2070M + C243 33U/10V C244 1000P R401 0 + C245 68U/6.3V R259 10 C246 0.047 + C247 10U/6.3V C248 0.022 R258 15K D218 DT23.9(B) R254 1.8K C249 1000P Q210 2SB766(R.S) + C250 2.2U/4V Q211 2SC4738(GR) D220 MA2S111 R25

18、5 10K R256 4.7K B C E Q212 DTA144EE C251 470P R257 10K Q221 2SK1588 C270 0.01 R289 470K Q207 DTC114YE C216 470P + C252 22U/6.3V R253330 Q213 2SB766(R.S) D217 CL181SD R260 4.7K Q215 UMW1 R264 2.7K R263 68K Q217 2SK1824 C254 470P R265 4.7K R262 1K R261 3.3K C275470P Q214 2SB766(R.S) Q216 UMW1 R268 3.3

19、K R269 1K C276470P + C256 22U/6.3V R267 4.7K + C253 2.2U/4V L206 Q218 2SK1824 R270 4.7K R271 4.7K C255 470P C257 460P Q219 DTA143ZE SP MIC C242 1000P R250 100 R272 2.2K L205 R402 2.2K 8 7 6 5 4 3 2 1 CN204 L207 R298 1K 10 9 8 7 6 5 4 3 2 1 CN202 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2

20、 1 9 2 2 2 2 3 3 S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S13 S13 S14 S15 S16 S17 S18 S19 S20 S21 S22 S23 S24 S25 S26 S27 C1 C2 C3 PD 6 R1 3M R4R6R5R3 8 11 5 12 7 10 R2 3R 3RC EL:13.40V H:12.57V 3.50V 3.43V 3.71V EL:1.22V H:4.8V 3.42V 2.90V 6.35V 9 8 7 3 2 1 543 21 1 DETECTION VOLTAGE RECEIVER DTMF RESET

21、COMPALATOR CIRCUIT RESET 5 3 6 12 11 C1 SM E SDO NC ET DT CK 10 5 3R MDD 3T TX 3C CK 3R UL E DT ASB EP RB APC DN 3M UP C1 SM AF BUSY SB MUTE SP REM F1 3 11 10 2 12 15 14 13 R4 STD OVER SW POWER CHANGE TRANSMISSION SW MUTE SP(DRILL=3.5mm) MIC(DRILL=2.5mm) J201 MIC 3M D206-216 PREVENTION REVERSE FLOW

22、AMP MIC SW MUTE 3R SW AVR 3C SW 3T SW * OPTION CTCSS UNIT TSU-8 X52-3290-00 3M SW COMPARATOR APC VOLTAGE CONSTANT OVER SW POWER CHANGE TRANSMISSION POWER SUPPLY SW APC CIRCUIT DC AMP DIFFERENT Q215,Q216 DEV AVR CONSTANT VOLTAGE 6 5 SM 3 2 5 CALL MSG R1 R2 R3 CH DISPLAY OFF SD SAVE SM 3 1 PD STD SD E

23、E PROM AVR 3.5V LED AVR CURRENT CONSTANT R6 56K R2 390 R3 12K R9 0 R80 R10 10 R11 150K R73 10k R44.7K 2SC4808(Q) 82K R61 0.39 R62 0.39 R63 0.39 R65 0 R71 4.7K R24 1M R70 10K R8368K R27 100 R23 100K R94 680 Q15 2SC4738(GR) R93 82 C1071000P C311000P R461K C370.1u C360.01u C341000P R440 R431K R421K C53

24、 1P C32 33P R41 18 L2 82nH C301000P R4933R481K R39470 47K R18 2.7K R17 2.2K R260 R1012.2K R16 22K R12 47K R13 18K R14 18K R40 500 C29 1000P R3833 Q7 2SC4093 R37 1.2K D9 MA77 R36 1.5K C28 22P R34 0 D8 MA77 R33 22 D7 MA110 C27 1000P C26 1000P R32 330 L1 Q6 2SC4083(N,P) R3182 R292.7K R30 2.7K C24 39P L

25、527nH 1000P R1 4.7K R15 10K Q1 2SC4738(GR) D1 MA2S111 C31000P C2 1000P R7100K C15 0.033u C1 6.3V 4.7u Q2 2SC4619 C1322P C10 7P C9 100P X1 12.8MHz VR2 47K C7 1000P C6 6.3V4.7u MB1511PFV-G-BND D3 MA2S111 C8 0.1u Q4 2SK1824 Q3 2SJ243 C16 10V3.3u C1835V0.1u C14 0.047u C17100P R20 2.2K R19 1.8K C113 0.1u

26、 C4 1.5P D4MA728 C1910V6.8u C1101000P C20 10V 6.8u C21 0.01u C22 0.01u Q5 2SK879(Y) R22100 C1118 1000P Q16 2SK879(GR) C111 16V4.7u D20 MA8062 C490.01u C51 1000P C52 0.01u Q8 2SC4808(Q) C50 12P 1000P 1000P 1000P L10820NH 100K MA362*J MA360 3.3K MA362*J 1P 1K 22 MA77 1000P 1.5P 4P1P 560 39nH 33nH 1P 2

27、SC4808(Q) 27 1000P 2SK238(K17) 82K 10P 10P 560 10P 0 560 TH15K C381000P C390.01u C400.1u C910.1u C74 3300P C77 0.012u C76 0.012u R66 270k R68 4.7K R67 5.6K R69 3.9K R64 470 Q12 2SC4738(GR) C70 6.3V2.2u C71 0.1u C72 0.01u C106 0.039u Q13 2SK1824 VR1 10K D17 SFPB-72VL C115 1000p C1141000P Q14 2SD1483

28、R72 12 R52180 R50 4.7K R51 4.7K R53 1K C56 1000P C54 47P D16 MA742 R25 0 L13 L15 270nH C55 470P C116 1P C58 27P R54 100K D13 HVU355 L12 C59 1000P R57 2.7K R5647 R58 100K C61 33P C631000P D14HVU355 Q9 2SK1215(E) L11 R5933 R60 100K C64 56P D15 HVU355 C6556P C62 1000P C85 0.01u C79 0.01u R762.2K R77 27

29、0K C86 1000P C67 1000P L22 100nH C105 1000P Q10 2SC4738(GR) C87 390P C89 1000P C88 390P R80 1.2K R79 220K R81 680 R78 560 C84 0.034u C83 1000P R82 4.7K C82 4700P C81 0.047u D18 DA221 R74 1.5K C80 6.3V2.2u R84 680 Q11 2SC4619 R86 150K TC1 C908P XF1 45.050M R87 1.5K C112 6.3V10u C92 0.01u C98 0.01u C9

30、4 0.01u R4782 L7 50nH C4212P D11 MI809 L6 7.5T L41uH C44 1000P C46 15P C47 15P C41 1000P C43 18P R100 0 R980 L8 D12 ISS312 C10427P CP2 C69 0.01u C68 0.01u C102 0.01u C100 27P CF1 455K CD1 455K C101 0.1u C99 0.1u R89 2.2K C103 0.1u R924.7K R90 2.2K R91 47K R88 10K C9627P C9715P X2 44.595MHz L20 1uH D

31、5 DA221 153.0mV ANT 2.89V TP 3.41V IC1 3.39V squelch TX-RX UNIT X57-437X-XX(A/4) BATTERY J1 DC IN CN1 2.04V IC4 MC3372V FMIC 2.66V 3.41V CURRENT CONSTANT L16 ENCODER S1 L14 L18 3.2V 47X2 ( 7) ( 1) ( 8) ( 2) ( 3) ( 9) ( 4) (10) L19 Nicd 0.84V CHRAGE ON VOLTAGE CONSTANT ( 1) PREVENTION REVERSE FLOW PW

32、R/VOL ( 8) ( 6) ( 5) ( 4) ( 3) ( 2) ( 1) 3.46V CHARGE QUICK FILTER RIPPLE D4 :MA77 D1,2 :MA362*J Q3,4 :2SC4808(Q) D3 :MA360 Q2 :2SK238(K17) Q1 :DTC144EE X58-4090-00 SUB UNIT POWER AMP TRANSMISSION PF0310-01 IC3 RECEPTION SW TRANCEMISSION/ 3.64V D11 0.82V L21 1.56V CHANGE OVER SW RECEPTION TRANSMISSI

33、ON/ CN2 0.7V IF AMP 2.07V RECTIFICATION NOICE 0.31V 0.81V NOICE AMP RF AMP SHIFTSHIFT RECEIVERECEIVE SHIFT RECEIVE 0.88V 3.28V 1.61V MIXER FIRST SW MUTE 1.58V HPF ACTIVE 1.25V 0.64V ( 4) PROTECTION:(2V) SW PROTECTION MODULE POWER L3 DC SW EL:13.39V H :12.5V 13.50V 1.22V AMP RF POWER RF SW RF SW 1.34

34、V 1.97V 1.22V 1.93V 0.22V AMP RF POWER 0.93V TX:0.03V RX:3.03V CN1 CN2 A1 SUB UNIT X58-4090-00 DTC144EE Q1 C4 3C MOD CV C17 R10 Q4 C13 R11 R12 OUT OUTP TX AMP AMP BUFFER BUFFER Q3 R8 C12 C10 L3 R9 C11 C9 R7 Q2 OSCILLATION AMP R6 C7 C14 L1 C8 R5 L2 D4 C5 R4 R3 FREQUENCY SHIFT MODULATION C2 C1 D1.D2VC

35、O FREQUENCY CONTROL D1 R1 D2 R2 D3 C3 CHANGE OVER SW RECEPTION TRANSMISSION DIODE PROTECTION POWER MODULELIMIT CURRENT ( 9) ( 3) ( 2) (10) ( 6) ( 7) (5) (1) (2) (4) (3) 6.82V V+ NC LOW VOLTAGE (LV) VOUT NETWORK LOGIC TRANSLATOR LEVEL VOLTAGE +2 OSCILLATOR RC REGULATOR VOLTAGE INTERNAL IC2 TC7660MEOA

36、CONVERTER DC. DC Q5 AMP BUFFER DC DIODE START UP TP PUMP PUMP CHARGE CHARGE 0.71V 10KX4 CP1 SHAPING WAVEFORM 2.62V PLL IC TX f RF AMP 2.73V - + MOD 3T TX 3C CX BR UL E DT ASB EP RB APC DN 3M UP C1 SM AF BUSY NC SB MUTE VCC 1 2345678 OSCILLATOR MIXER SQ TRIGGER DEMODULATION AMP LIMITER AMP FILTER AMP AUDIO 161514131211109 POUT VDD VPC PIN 4321 5 6 7 8 CAP+ GND CAP- 4 3 2 1