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Page 87 0DLQWHQDQFH /RZ %DQG 7URXEOHVKRRWLQJ &KDUWV 8urpxÃV!Ã ""WÃh‡ÃV! Ã Start hqÃG!! ƒv†Ã Ã!Ã"#Ã ÉÃ"% Wv†ˆhyÃ 8‚……rp‡ purpxÃ‚sÃ‡urÃ Q…‚iyr€ 7‚h…qÃPF4 D†Ã 8urpxÃ8!#&Ã8!#(Ã D†Ã &ÃHC“ &HC“Ã D†Ã V! Ã Qv SrƒyhprÃ 8!'"Ã8!'#Ã8!' Ã TvthyÃh‡ †vthyÃh‡Ã #&Ã3Ã !W 8!'%Ã9! Ã9! Ã V! ÃQvÃ (4 V! ÃƒvÃ...
Page 88 0DLQWHQDQFH /RZ %DQG 7URXEOHVKRRWLQJ &KDUWV 1R 5; /2 RU 1R VLJ 1R 7; /2 RU 1R VLJ QDO DW 8 3LQ LQ QDO DW 8 3LQ LQ &KHFN VLJQDO DW &KHFN VLJQDO DW FROOHFWRU RI 4 FROOHFWRU RI 4 &KHFN / / / /HYHO ! / & & &...
Page 89 0DLQWHQDQFH 0+] 7URXEOHVKRRWLQJ &KDUWV 0+] 7URXEOHVKRRWLQJ &KDUWV MCU Check Press PTT. Red LED does not light Power Up Before replacing MCU, AUDIO Not able to pro- Audio at Alert Tone check SPI clock, SPI gram RF Board Audio PA (U420) J403 Audio at data, and RF IC select...
Page 90 0DLQWHQDQFH 0+] 7URXEOHVKRRWLQJ &KDUWV START Bad SINAD Bad 20dB Quieting No Recovered Audio Audio at Check Controller pin 27 of U351? Spray or inject 1st IF into XTAL Filter IF Freq: 109.65 MHz Check Q350 bias cir- cuitry for faults Audio heard? Rotate Freq.
Page 91 0DLQWHQDQFH 0+] 7URXEOHVKRRWLQJ &KDUWV Inject RF into J101 Trace IF signal from Is the level of the L353 to U352. IF signal of the IF Signal at Check for bad XTAL output of U352 as L353? filter. indicated? Before replacing U351, check U351 voltages;...
Page 92 0DLQWHQDQFH 0+] 7URXEOHVKRRWLQJ &KDUWV START Low Power No Power No Power out or Low Power Is overall radio current between 0.8 and 1.3 A when transmit- ting? Is the fuse Is there a Replace F501 Check L101, L102, C101, F501 OK? short circuit CR101 for open circuit...
Page 93 0DLQWHQDQFH 0+] 7URXEOHVKRRWLQJ &KDUWV Check U248 3.3V at U201 Start & L202 pins 5, 20, 34 & 36 Visual Check D201, D202, Correct check of the C244, C245, C246 & Problem Board OK? C247. Is 16.8MHz 16.8MHz Is U201 Pin 47 at pin 6 of Replace Signal at...
Page 94 0DLQWHQDQFH 0+] 7URXEOHVKRRWLQJ &KDUWV START Is Tx signal Is LO signal VCO is OK. present at the PA present at the driver IC, U101? mixer IC U301? Resolder or Is resonator IC replace U205. U205 soldered Is resonator Resolder or IC U206 sol- replace U206.
Page 95 0DLQWHQDQFH 3DVV3RUW 7UXQNLQJ 7URXEOHVKRRWLQJ &KDUW 3DVV3RUW 7UXQNLQJ 7URXEOHVKRRWLQJ &KDUW Start Check Radio Operation on a Non PassPort Zone with a Conventional Personality without the Option Board Enabled Check Radio PassPort Programming using CPS Check Switched Battery and Vdd from Radio on PTCB Check Radio PassPort Programming using CPS Demod on...
Page 96 0DLQWHQDQFH .H\SDG 7URXEOHVKRRWLQJ &KDUW .H\SDG 7URXEOHVKRRWLQJ &KDUW 'LVFRQQHFW DQG 'LVSOD\ UHFRQQHFW SLQ IOH[ IF STILL START .H\SDG 'LVFRQQHFW DQG UHFRQQHFW SLQ IOH[...
Page 97 0DLQWHQDQFH 0+] 7URXEOHVKRRWLQJ &KDUWV 0+] 7URXEOHVKRRWLQJ &KDUWV Press PTT. Red LED does not light AUDIO Audio at Audio PA (U420) J403 Audio at input Pin 2 & Pin 3. (C447). PTT U409 Pin 53 Check low? Audio PA (U420).
Page 98 0DLQWHQDQFH 0+] 7URXEOHVKRRWLQJ &KDUWV MCU Check. Before replacing MCU, Power Up Not able to pro- check SPI clock, SPI Alert Tone gram RF Board data, and RF IC ICs. select. Replace Speaker. Speaker Check U409 EXTAL= Read Radio OK? Setup.
Page 99 0DLQWHQDQFH 0+] 7URXEOHVKRRWLQJ &KDUWV START Bad SINAD. Bad 20dB Quieting. No Recovered Audio Audio at Check Controller. pin 27 of U351? Spray or inject 1st IF into XTAL Filter. IF Freq: 109.65 MHz Check Q350 bias cir- cuitry for faults Audio heard? Rotate Freq.
Page 100 0DLQWHQDQFH 0+] 7URXEOHVKRRWLQJ &KDUWV Inject RF into J101 Trace IF signal from Is the level of the L353 to U352. IF Signal at IF signal of the Check for bad XTAL L353? output of U352 as filter indicated? Before replacing U351, check U351 voltages;...
Page 101 0DLQWHQDQFH 0+] 7URXEOHVKRRWLQJ &KDUWV START Low Power No Power No Power out or Low Power. Is overall Check C163, radio current Replace C127, and between 0.8 and parts. C142 for open 1.3 A when circuit. transmitting? Is the fuse Is there a Replace Check L104, L105, C120,...
Page 102 0DLQWHQDQFH 0+] 7URXEOHVKRRWLQJ &KDUWV START Check U24 3.3V at U201 Start L202. pins 5, 20, 34 Is Tx signal Is LO signal & 36. VCO is OK. present at the PA present at the driver IC, U101? mixer IC U301? Visual Check D201, D202, Correct...
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Page 104 6FKHPDWLF 'LDJUDPV 2YHUOD\V DQG 3DUWV /LVWV )OH[ /D\RXW SIDE 1 6`@SÃ Ã /$<(5 &,5&8,7 6`@SÃ!Ã ! %2$5' '(7$,/ 9,(:,1* 6`@SÃ"Ã " &233(5 67(36 ,1 3523(5 DII@SÃ 6`@ST 6`@SÃ#Ã # /$<(5 6(48(1&( 6`@SÃ$Ã $ 6`@SÃ%Ã % TD9@Ã! )OH[ /D\RXW <- TO KP )URQW 0HWDO 9LHZ IURP 7RS VLGH TO CTRL ->...
Page 105: Table Of Contents
6FKHPDWLF 'LDJUDPV 2YHUOD\V DQG 3DUWV /LVWV )OH[ /D\RXW .H\SDG&RQWUROOHU ,QWHUFRQQHFW )OH[ 6FKHPDWLF CONTROLLER KEYPAD J200 J100 EXT_MIC EXT_MIC VS_CS VS_CS SW_B+ SW_B+ Vddd Vddd VS_AUDSEL VS_AUDSEL Det_Aud_Snd Det_Aud_Snd Rx_Aud_Rtn Rx_Aud_Rtn Tx_Aud_Snd Tx_Aud_Snd Tx_Aud_Rtn Tx_Aud_Rtn Flat_Tx_Rtn Flat_Tx_Rtn Opt_Bd_En Opt_Bd_En Rdy/Req Rdy/Req Rx_Aud_Snd Rx_Aud_Snd...
Page 106 6FKHPDWLF 'LDJUDPV 2YHUOD\V DQG 3DUWV /LVWV )OH[ /D\RXW 8QLYHUVDO )OH[ &RQQHFWRU J403 J416 J415 J414 J413 J412 J411 J410 J409 J408 J407 J406 J405 J404 %DFN 0HWDO )URQW 0HWDO 9LHZ )URP 7RS 6LGH 9LHZ )URP 7RS 6LGH )LJXUH 8QLYHUVDO )OH[ &RQQHFWRU...
Page 107 6FKHPDWLF 'LDJUDPV 2YHUOD\V DQG 3DUWV /LVWV )OH[ /D\RXW 8QLYHUVDO &RQQHFWRU )OH[ 6FKHPDWLF M400 SPKR_20 J403 20 PIN CONN SPKR_20 INT_SPK+ 13 PIN UNIVERSAL CONN INT_SPK- SPKR_20 EXT_SPKR+ J404 EXT_SPKR+ SPKR_20 EXT_SPK- J405 EXT_SPK- OPT_B+30 DPT_B+ OPT_B+ J406 EXT_MIC EXT_MIC J407 OPT_SEL_2 OPT_SEL_2...
Page 108 6FKHPDWLF 'LDJUDPV 2YHUOD\V DQG 3DUWV /LVWV .H\SDG 7RS DQG %RWWRP 2YHUOD\V .H\SDG 7RS DQG %RWWRP 2YHUOD\V VIEWED FROM SIDE 1 M604 M605 M606 D601 D602 M607 M609 M608 M610 M611 M612 D604 D605 M613 M614 M615 M616 M617 M618 D603 D606 M619 M620...
Page 109 pur€h‡vpÃ9vht…h€†ÃP‰r…yh’†ÃhqÃQh…‡†ÃGv†‡† ÃFr’ƒhqÃ7‚h…qÃTrp‡v‚ #& Fr’ƒhqÃ7‚h…qÃTrp‡v‚ Vddd C617 C618 100pF E637 40 PIN CONNECTOR C622 100pF C610 EXT_MIC J601-40 EXT_MIC ROW3 ROW4 ROW5 M606 VS_CS VS_CS 100pF J601-39 M604 M605 SWB+ SW_B+ R614 SWITCH J601-38 SWITCH SWITCH R632 C621 C620 C619 J601-37 Vddd R615 100K...
Page 110 pur€h‡vpÃ9vht…h€†ÃP‰r…yh’†ÃhqÃQh…‡†ÃGv†‡†) ÃFr’ƒhqÃ7‚h…qÃTrp‡v‚ r’ƒhqÃ7‚h…qÃQh…‡†ÃGv†‡Ã$ÃhqÃ&Ã H‚‡‚…‚yhÃQh…‡Ã 8v…pˆv‡ÃSrs 9r†p…vƒ‡v‚ Tr…vr† I‚ H‚‡‚…‚yhÃQh…‡Ã S%#! %%!$&H Ã‚u€ 8v…pˆv‡ÃSrs 9r†p…vƒ‡v‚ I‚ S%#" %%!$&H Ã‚u€ S%## %%!$&H Ã‚u€ ('%!"&6! 7h‡‡r…’Ã8‚‡hp‡Ã S%#$ %%!$&H Ã‚u€ H‚qˆyr S%#% %%!$&I!" 7$" "('$!a 7hpxˆƒÃih‡‡r…’Ã7Ã S%#& %%!$&H'$ "F 7$# "('$ a 7hpxˆƒÃih‡‡r…’Ã7Ã S%#' %%!$&I!"...
Page 111 pur€h‡vpÃ9vht…h€†ÃP‰r…yh’†ÃhqÃQh…‡†ÃGv†‡† ÃFr’ƒhqÃ7‚h…qÃTrp‡v‚ VIEWED FROM SIDE 1 VIEWED FROM SIDE 2 D602 D606 M601 M603 M602 R643 R629 M604 M605 M606 R631 D601 D605 R633 R641 M607 M609 M608 E613 Q604 R602 R603 J602 M610 M611 M612 C601 R644 D608 D604 R647 M613 M614...
Page 112 pur€h‡vpÃ9vht…h€†ÃP‰r…yh’†ÃhqÃQh…‡†ÃGv†‡†)Ã # Fr’ƒhqÃ7‚h…qÃTrp‡v‚ ROW5 ROW4 ROW3 M601 M602 M603 SWITCH SWITCH SWITCH OUT1 OUT1 OUT1 OUT2 OUT2 OUT2 C606 100pF 40 PINS CONNECTOR SWB+ COL4 J601-40 EXT_MIC EXT_MIC J601-39 VS_CS VS_CS SWB+ J601-38 SW_B+ ROW3 ROW4 ROW5 C607 R607 J601-37 M604 M605...
Page 113 pur€h‡vpÃ9vht…h€†ÃP‰r…yh’†ÃhqÃQh…‡†ÃGv†‡† ÃFr’ƒhqÃ7‚h…qÃTrp‡v‚ r’ƒhqÃ7‚h…qÃQh…‡†ÃGv†‡Ã(ÃTr…vr† H‚‡‚…‚yhÃQh…‡Ã 8v…pˆv‡ÃSrs 9r†p…vƒ‡v‚ I‚ H‚‡‚…‚yhÃQh…‡Ã 8v…pˆv‡ÃSrs 9r†p…vƒ‡v‚ I‚ S%" %%!$&H'! !!FÃ S%$ %%!$&H Ã‚u€Ã ('%!"&6! 7h‡‡r…’Ã8‚‡hp‡Ã S% %%!$&H Ã‚u€Ã H‚qˆyr S%!! %%!$&W! 7$" "('$!a 7hpxˆƒÃih‡‡r…’Ã7Ã S%!" %%!$&I % $ FÃ 7$# "('$ a 7hpxˆƒÃih‡‡r…’Ã7Ã S%!# %%!$&W! "&#"I$ ÃƒA S%!$...
Page 114 pur€h‡vpÃ9vht…h€†ÃP‰r…yh’†ÃhqÃQh…‡†ÃGv†‡†)Ã # ! Fr’ƒhqÃ7‚h…qÃTrp‡v‚ I‚‡r†...
Page 115 pur€h‡vpÃ9vht…h€†ÃP‰r…yh’†ÃhqÃQh…‡†ÃGv†‡†) 8‚‡…‚yyr… Trp‡v‚ # " 8‚‡…‚yyr…ÃTrp‡v‚ TO/FROM RF IF_RED_LED_CTRL RED_LED RED_LED IF_GREEN_LED_CTRL GREEN_LED GREEN_LED IF_SB1_CTRL AUDIO IF_SB2_CTRL IF_SB3_CTRL INT_MIC 4V_3.3V 4V_3.3V IF_EMER_CTRL EMER EMER IF_RTA0_CTRL EXT_MIC Vddd Vddd RTA0 RTA0 IF_RTA1_CTRL RTA1 RTA1 IF_RTA2_CTRL EXT_SPKR_SEL RTA2 RTA2 DEMOD DEMOD IF_RTA3_CTRL RTA3 RTA3 ASFIC...
Page 116 pur€h‡vpÃ9vht…h€†ÃP‰r…yh’†ÃhqÃQh…‡†ÃGv†‡†) # # 8‚‡…‚yyr… Trp‡v‚ 4V_3.3V SWB+ R405 R402 Q400 BATT_CODE TP406 Vddd UNSWB+ Vddd C401 C400 0.1uF R401 .01uF R406 R427 2.7K U400 C402 LP2951ACMM-3.3 C403 CR412 10uF INPUT OUTPUT 0.1uF R407 FEEDBACK ERROR BATT_DATA_IN INT_EXT_Vdd SHUTDOWN SENSE VTAP Q405 TP410 C408...
Page 117 pur€h‡vpÃ9vht…h€†ÃP‰r…yh’†ÃhqÃQh…‡†ÃGv†‡†) 8‚‡…‚yyr… Trp‡v‚ # $ 4V_3.3V R405 R402 SWB+ Q400 Vddd TP406 BATT_CODE Vddd UNSWB+ C401 C400 0.1uF R401 .01uF R406 R427 2.7K U400 LP2951ACMM-3.3 C402 C403 0.1uF 2.2uF INPUT OUTPUT FEEDBACK BATT_DATA_IN ERROR INT_EXT_Vdd SHUTDOWN SENSE 1 K3 R407 VTAP Q405 CR412...
Page 118 pur€h‡vpÃ9vht…h€†ÃP‰r…yh’†ÃhqÃQh…‡†ÃGv†‡†) # % 8‚‡…‚yyr… Trp‡v‚ Controller Board -- Micr Vddd F1200 ÃÃÃ R457 R409 Freq. Range Board Number SCI_TX SCI_RX 403-470 MHz 8480450Z03 TP401 TP402 R418 450-527 MHz 8485641Z02 136-174 MHz 8486062B09 UNSWB+ Vddd Vddd Vddd 136-174 MHz 8486062B12 R437 C431 C453 C449...
Page 119: Ptt
pur€h‡vpÃ9vht…h€†ÃP‰r…yh’†ÃhqÃQh…‡†ÃGv†‡†) 8‚‡…‚yyr… Trp‡v‚ # & Vddd F1200 ÃÃÃ R457 R409 Freq. Range Board Number SCI_TX SCI_RX TP402 403-470 MHz 8480450Z13 TP401 TEST_POINT TEST_POINT R418 450-527 MHz 8485641Z06 136-174 MHz 8486062B16 UNSWB+ Vddd Vddd Vddd R437 C431 C449 C453 C423 100pF 100pF 100pF 100pF...
Page 120 pur€h‡vpÃ9vht…h€†ÃP‰r…yh’†ÃhqÃQh…‡†ÃGv†‡†) # ' 8‚‡…‚yyr… Trp‡v‚ FLASH ROM 8‚‡…‚yyr…ÃHr€‚…’ÃTpur€h‡vpÃ9vht…h€ vtˆ…rÃ# #)Ã...
Page 121 pur€h‡vpÃ9vht…h€†ÃP‰r…yh’†ÃhqÃQh…‡†ÃGv†‡†) 8‚‡…‚yyr… Trp‡v‚ # ( SWB+ UNSWB+ OPT_SEL2 R450 C475 OPT_SEL1 VR446 VR447 10uF VR448 VR449 VR445 10.0V 10.0V 10.0V 10.0V 10.0V R473 C471 C472 J403 100pF 100pF 20 PIN CONNECTOR C442 C473 U420 R423 0.1uF 100pF TDA8547 J403-1 C447 VCC1 VCC2 R472 J403-2...
Page 122 pur€h‡vpÃ9vht…h€†ÃP‰r…yh’†ÃhqÃQh…‡†ÃGv†‡†) #! 8‚‡…‚yyr… Trp‡v‚ C466 100pF C458 100pF R481 C459 100pF J400 40-PINS CONNECTOR EXT_MIC J400-40 EXT_MIC VS_CS J400-39 VS_CS SWB+ J400-38 SW_B+ E400 Vddd J400-37 Vddd VS_AUDSEL VS_AUDSEL J400-36 FLAT_RX_SND J400-35 Det_Aud_Snd RX_AUD_RTN J400-34 Rx_Aud_Rtn C467 TX_AUD_SND J400-33 Tx_Aud_Snd C481 0.1uF J400-32...

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Page 19: Swb

Page 20: Key_Int

Page 21: Vddd

Page 105: Table Of Contents

Page 119: Ptt

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