SERVICE MANUAL
Contents
1. CORE 1 SEN POWER_EN VDDIALIVE L ee RSTOUT GPA21 E_POWER_ENABLE BATT_FLT voor ERR SENSE ADJ e Ga GE rRST DE 1 A Le 0 f voDTARM 1 BY VDDIARM 1 NC g VDDIA2. em gene R99 pa LMV358MX ANT TEST 3 89 ANY 11 13 R132 R133 vu U4 A Acns a saia 33068 ep in KIA78DLO8F RTF la 330uH 3309 Wf K POWER 24V 2 3 S j our I OR puni U4 B wipe xss 025 NF R v gt eL 7 5 8000 1 US1G 11 N El he Nova _ D19 02 R4 2 ala ds ei S akal SV H y 918 0 p20 0 Be se sle Sl 83 28 dla Ka 7 mm 7 vec Ka 17V si lt SMK432B
3. CHE MB E N 726 RECEIVER BOARD F gt z NJM2211 _ pS BKH2 _ S18KHz pe DEMODU nor our SO a pe PO E SC B P F LATOR j gt gt B P F P gt R N SPLITTER MET MP 1 7KHz 518KHz GER F 526 8708 010 H 1615Hz y MP ES ra L 1785Hz N R gt A90KH E A tr E SC Q AF1_OUT ae B P gt ap gt y j gt 8V Po ne al En Sr gt CY AF2_OUT K H 1615Hz N 729 AMP BOARD EXETER DOT2_SEL L 1785Hz Se 1165 N 1166 N 1167 ANT BOARD gt gt 4 2095MHz MIX 9V E DEMODU 0072 B P F a REGURT REE oH LATOR Pe 8V i 3719 5KHz 7 439MHz E FREQ a 488 3KHz 4209 5KHz a g A HEH DIVIDER go FREQ ae pe Ps N a a T5V DIVIDER HA gi Ss A T5V 8 zl 1716 7 8128MHz MIX 3 amp a 516 3KHz x RX1_TEST RX2_TEST F j REQ A e ie y L 8 DIVIDER U ee F 1 16 8 2608MHz p bo Y POWER gt blo Se var DC 12 24V 5V 4 REGURT sv pe E ie LINE EXT_ALARM_ 5V FILTER lt BUZZER_5V ze MAKOV RS 232_0 REGURT NNER PRN TEST 5V PRINTER RS 232_1 8V RS 422TX_2 INS RS 422RX_2 REGURT 8 8V Z D x Poo m m FE EERE ES r 4 11 c RS 422
4. 2F10NMW EW LCD LCD LED
5. AF44 a FET 1167 ANT BOARD N 729 AMP BOARD TNC a A m lt O 1 m 2 TO ANTENNA RG 58 15M BNC a DEB 9P gt RS232RX_0 a 2 H je 3 a Ea e E S RTS EE Senn PRINTER m RS 232 lt ES 8 VO 9 q Z HDEB 98 RS232RX_1 a 2 3 ae Re E 5 2 E PS GND ISO 13 El 4 RS 232 Rs232Rx_0 lt 23 25 4 RS232TX_0 H2 12 E PRN TEST 24 24 2 GND ISO us a RS232Rx_1 23 23 rs2321x_1 H2 10 _ 22 22 SND oto RS422RX_2B RS422RX_2B lt 7 ane 21 21 RS422RX_2A RS422RX_2A SE 5 GND ISO le 8 RS_422 RS422TX_2B L t 20 ST Se 7 RS422TX_2A RS422TX_2A gt ST Ai 19 19 3 AF1_oUT 6 GND GND 18 18 AF1_OUT AF2_ouT T P 5 GND A GND 17 17 AF2_OUT BK a 4 a GND 16 16 BK GND 3 3 BK E_ALARM 15 15 A BK BK E_ALARM GND 2 2 lt NC 14 LA La 1 1 E_ALARM 7 E_ALARM GND E_ALARM N N I m m a un un mx ma E CVV SB 3C 1 25SQ 3M 1 DC 2 GND 12 24DC 10 36V rt 3 DC SCN16 3P PWR 7 VO
6. RET 3 4 RET 2 E RET 1 42 RET 0 UL on orr 0 V garra 8 KEY DIMMER dl Beien 86 starus B P starus c KH STATUS DIMMER 3 BUZZER 12 eno H 2090 3 B 2 CPU BOARD N 727 SPich 120mm os CN3 POWER 24V a POWER x 2 POWER 24V 3 POWER 24V la POWER 24V 3 POWER 24V 6 POWER 24V 1 POWER 24V 8 eno 9 puty_o 2 burri HI pury_2 H2 AF_sEL H2 GNp H4 H3 BUZZER H 116 0011 42 pora PE V RX1_TEST 20 RX2_TEST 121 TEST_SEL 22 TEST_FSK 23 GND RS422TX_2A 25 RS422TX_2B 26 RS422RX_2A 27 RS422RX_2B 28 RS232RX_1 22 RS232T _1 20 PRN TEST 21 RS232Tx_0 22 RS232RX_0 H3 09 H4 9v ER 9 38 9v EN enD 28 ANT_TEST 139 Dor2_sen 40 CN1 1 POWER 24V 2 POWER 24V 3 POWER 24V al POWER 24V 5 POWER 24V 6 POWER 24V 7 POWER 24V el POWER 24V GND 10 DUTY_O 1l DUTY_1 12 DUTY_2 13 AF_SEL JA GND 15 NC 16 BUZZER H 1r DOT1 18 DOT2 19 GND 20 RX1_TEST a RX2_TEST 2z TEST_SEL 23 TEST_FSK ea GND ISO 2 RSA22TX_2A 26 RS422TX_2B 27 RS422RX_2A RS422RX_2B 29 RS232RX_1 30 RS232TX_1 31 PRN TEST 32 RS232TX_O 33 RS232RX_0 34 GND 35 9V 36 9V 37 9V GND 39 ANT_TEST ao DOT2_SEL AF440XAXG1T
7. BUFF ds als IN 9 9 gt N 727 CPU BOARD BUFF 2209848996 PHOTO Er JTAG Geer DM7407MX BU 9V DM7407MX BUFF DC DC gt Converter REGURT POWER mea N an CONTROBDER 5V MAIN PROCESS UNIT S3C2410A 20 S 5V ln I T 32 768KHz 7 SDRAM FLASH MEMORY 12MHz ICONTROLLE RESET 1F 16MB 64MB Se BACK LIGHT Er s EN Fa ALS CONTROLLER MODULE CONTROLLER RECUR 5 CUE SECURE REGURT LCD 320X240 25V 3 3V 1 8V I ARIVE II DISPLAY LED DATA LINE Pach OTOH ARM INT LOC RX LINE de TEST LINE ser y gt gt DATA BUS KINE ALP1205ST N 728 KEY BOARD gt E 6 WIRE DIAGRAM F10NMW N W i W Dn LCD KEY BOARD N 728 FFC 14Pin 1 25Pitch 100mm CN1 1 1 DATAO 2 2 DATAL m 3 3 7 DATA2 l 4 DATA3 O 3 3177 DISP_OFF A ine HO 6 ei Fen 7 7177 ne o ls e cra cr a 9 72 pcx N 10 10 x 117 vss o 12 12 VEE N Bee 13 M YO m 14 14 FGND A 12511HR 14RS K Wi H Q m N3 H 5 2 A 2 oO a 4 IL G 4P FFC 20Pin 1Pitch 100mm 458 CN1 CN6 SEL 0 au SEL 1 19 5 2 18 ser 3 Li ser a HE RET 4 HS
8. 0 CPL 04 Fi a aj 1 m GCS3 GPA14 GCS4 GPA15 x GCS5 GPA El u2i a H E GND O RX1_TEST ea BEO WBEC vn BE1 WBEL 330 BE2 WBE2 GPB0 d 2 BE3 WBE3 6 en SPB1 LO VO SCLK1 eo 5 3 N SCKE ECp1 0452 AXBACK GPBS Ge VDDI_MPLL ANT_TEST a ei GPB9 DN1 I5V XDREQO GPB1O ing De T10 16 11 7 T10 16 c44 C45 4 parr 1 16 ov EO 12 cLE GPA17 LN U ALE GPAL LE st FEWE GPAL DOT2_SEL l FRE GPA2C rao PER FCE GPA22 av AF440X AXG1T R NB m NCON 12MHz SMD H 1 port H 114 0 5 l e SE Mig EINT1 GPF1 T10 16 110 16 66 67 EIN GPF2 j CH e ds de a 3 Een A 3 30 x H E x a gt PWR_INT ANT_TEST M15 wir rs A 1 q 7 aq 4 E 115 EINTA GPEA 5 K d a q 4 e s 4 EINTS GPES beh B J 6 D A 3 Su El a 33 6 EINT6 GPF6 ook oh ok 8 mg d 3 E g a d L1 EINTT GPFT 3 Si A E d EINT8 GPG d 35 EINT9 GPG1 4 a 3 i EINT10 S0 GPG2VDD_RTC 1 8V lt 3 EINT11 S1 GPG3 XTO_RTC d EINT12 L_E GPG4 XTI_RTC rat p Ss o H KRC101S RTK fy y ma d m l YAA c11 KEY_BUZZER 612 52271 2090 Hs AAA 3 3V a le le le le le le e z z e P a F E F 10808 a 78 8 8 E d dad ea F TE ob ob ob oS SB OBB OBS Se oe oe oE SESE SE e115 06 of of oe OF BPE SR SBS J i i oe 11810 1 5v 11310 1 q ua SDCLK GPES aaa o_o o_o DCND GPES 119 0 1 SPX1587AT 3 3 129 0 1 129 0 1
9. 5V of No 4 pin of U3 of N 727PCB gt Check circuits around U8 When 25V comes out check if 20V 2V comes out from TP2 Vo If 20V 2V does not come out check circuits around amp change the LCD 3 3 In case of NAVTEX s sensitivity problem 1 Check antenna 2 Check the severance of antenna cable 3 Electronic noise in engine may be affecting NAVTEX 4 Change the route of power cable from engine 5 Add noise suppressor to power cable 6 Use protective ignition plug wire or AC generator noise suppressing filter 3 4 In case of printer problem 1 may be printer cable problem Or printer setup may be incorrect 2 Check if printer cable is correctly linked physically 3 Check the polarity of printer cable AH possible check the baud rate setting of printer 4 Photo of equipment 4 1 Front side 4 2 Back side 4 3 CPU 4 4 LCD KEY A 4 4 RF 5 BLOCK DIAGRAM 518KHz 490KHz 4 2095MHz
10. ER SL a r d AS er Ze e dle 8 CNH3 lt R94 I 4 a 4 0 od de ve ya Sis I vo i Hd eje Sje q c CNH31R473S 3 3K Y g 4 ii g i D Ze 1 A H a ii w a E ty 9V U15 LOSF RTF gt zg el TIN n a d d eg So PE SS ES ls ls bd ER SE 7 TH 7 7 d D TP8TP9 9v vcc 9V v Le Le o he TI J IIJ 3 SE SR ez kb FS 381 SRE 4 8 alo 5 8 Pakapaka In S Inc sess aa RSS jas alt jae IS Glo Oe Sle Ge Os Be oe E Di lb ols Bls Os S P 4 de E ole Og 8 CPU DIAGRAM N 727 ooo y l v2 3 3V LP3965EMP Ur ARES
11. J104KM T Y E E MESS ma 27dB AMP SMK432BJ104KM T A 8v ak N 3Vp_p TKHZ BSHZ 17d8 aloes R122 md 3 ji R6 RIGS E amp 23 mE EA ale Jr ii 014 Or 5 3001 Es FL1 Ble dls p ne es l T504A T504A E 1 A 7 ort 8 R11 R12 Los 3 T2 T3 0 SC 10K 10K a el 1 N 1 3 In WORT 2 2 111 ii It a S 10 p O 796 c26 T ar Pe d 1 ei ak 2 375 Zei E i a o E ER Die whe A l d i Va le de EF d E SE IS yaya S Tlo 5 LMV358MX L 28 o 2 al 5 3 ded d EEE bo J H 7 77 U3 Ar 7 7 7 ER Sie 48 Ke 7 7 m 7 2 as Bl ele ea LMV358MX ale DR z D AN A 7 TT go d GR A CNL KDS11 s5 slo 1 e q ZE 24v 4 3k cn Wei SE Zi a a Ja DOT2_9V vec ag D LE zart 522 a lt 1 dE 7 O en we J MAX5V 3 m sar s 1 A E 33 Es P GE a u lt h a kb el o ae T y L ESE Oe EA yi e Fr rim 10 Fr 2 8v FL2 77 zi 3 A 5 526 8749 010 c184 8 1 a 1 1 4 Fl I d 7 EEE 58 100F P Li en Herb 2SK210 ge 3 Al 1 in D eigr ra 0 01 06 gt 8 470un J H w T402A AO gs pit 1 7 18 D4 gt R111 yo D a KDS1142 a i 4 7K ma o ie A J E 5 _ C51 l eb 0778 a i i 8 O E ak eL 5 LMV358MX E d F 2 pe 3 of sk an lt B dE d ef SP Os SS Ze we ER BR dei ER 7 we rh RS2328X I gt om sk Ng 27dB AMP LMV358MX d EEN pes 7 S Hp E 2183 r EN 203 8v TEST vec rva lt vec vec ANT_TEST Wo a
12. LTAGE DIAGRAM N 728
13. RM 1 aq Ae VDDIARM 1 L2 PCLK dl Ro RE oz 974 VODIARM 1 E somes Roo 013 VODIARM 1 E CE VODIARM 1 WO pia mm E en 612 DATAO 2 DATAL E St pil DATAZ Renz 33 B ETA ADRS 331 All DATAT ma on Dome y me S EZ mess 5 Sp vanos Basar aa 44 N A 6 A10 VDDMO 3 DATAT DATA j ADORE wir sss med 44 00 as Kee mr B VDDMOP 12DA DATAE 30 AS 19 ADDR mins oe E MEST E EE ee o Dee 75 EE 3 re r10 Gaz DA Tz Be s amer A kees AS Ee eer 210 o anna Les Ga a ro kay ADDRIS a S30RTRIS bata gs 288 M2 ADDRI4 DQ15 A 1A13 1 ADDRIE u vo2 80 3 ne D3 B1 SE vDa B2 DaTAd LG 12 ee vD7 B5 GPC15 1A7029AF ORAT ES 7 2 EE en Ge 11 61 H D12 G2 z Aa D13 5 Ge D14 G4 GPD Y ra RESET DATAIA lee 3 aa patata VD16 GPD8 R as as voz Su Damas E 24 SE D19 R1 GPD11 1 Fett VD20 R2 GPD12 San vD21 R3 GPD1 Z Bi a re az VD22 R4 GPD14 ae ae l o 23 85 68015 PA ER mM a 2 ad 3 3 3V ISV a i 8 mz S eeneg 28 d i E APTA ATAR CN4 e E gt CLKOUTO GPH9 POWER 4240 a CNH31R473S TM Sok J la 15 Sa d DATA25 CIKOUT1 GPH10 RSE faro ae 8 a ee CLKOUT1 GPH10 av E R32 AA ES gt P E DATA27 e v a av ES lt 4 7K SKR ST U13 al 81828 5 2 8 Bee 12V 50K DATA29 6 POWER ee ae cena el A cower DATA31 en 3 m Pome F 1A470uH
14. SERVICE MANUAL MODEL SNX 300 SAMYUNG Dismantle the equipment after separating power completely At first understand the problems of equipment Use insulated tools in adjusting in order to prevent the short of circuit or electronic part Smoothly adjust in adjusting parts such as Variable Resistor Do not turn on long time if there are defects in products Understand this manual completely before doing repairs or tests LED Su 200 LCD ALPHANUMERIC NAVTEX RECEIVER Be Ki FUNCTION POWER MENU DESCRIPTION DISPLAY RX MESSAGE amp VARIOUS INFORMATION BLINKING ACCORDINT TO STATUS FUNCTION FUNCTION BUTTON LINKED TO LCD 1 Specification 1 1 RECEIVER Receiving Frequency 518KHz 490KHz or 4209 5KHz Receiving Modulation F1B NBDP e Sensitivity 2uV e m f 50 ohms 4 error rate or less Antenna input 50 ohms for NAVTEX Active antenna 1 2 DISPLAY SECTION Type of display 5 7 inch LCD 320x240 dots Back light For LCD and key board Dimmer control 10 level adjusting Selectable from keyboard Contrast control 10 level adjusting Selectable from keyboard 1 3 POWER SUPPLY Input voltage Regular voltage DC 12 24V 10 36V Power consumption 10 W at 24 V de input 1 4 ACTI
15. VE ANTENNA SAN 300 Receiving frequency 518kHz 490kHz and 4209 5kHz Consumption current 8Vdc 10mA Typ Impedance 50 ohms 1 5 ENVIROMMENT Operation temperature 15 C to 55 C Storage temperature 25 C to 75 C Relative humidity 95 at 40 C without dew condensation Vibration IEC 60945 2 CIRCUIT DESCRIPTION 2 1 PORT DESCRIPTION 1 10 11 AF_SEL WHEN U16 B U16 C TURN ON H CHANGES AF SIGNAL TO OUTER CONNECTOR PIN NO 8 amp NO 9 BUZZER H SENDING ALARM SIGNAL TO THE OUTSIDE DOT1 SENDING DOT SIGNAL RECEIVED INTERNATIONAL BROADCASTING TO CPU 518KHz DOT2 SENDING DOT SIGNAL RECEIVED DOMESTIC BROADCASTING TO CPU 490KHz 4 2095MHz RX1_TEST SELECTING 518KHz IT BECOMES H U14 A GETS TURNED ON RX2_TEST SELECTING 490KHz IT BECOMES H U14 B GETS TURNED ON TEST_SEL IN TEST IT BECOMES H SUPPLIES T5V T5V TURNS ON MIXER amp RELAY FOR TEST TEST_FSK IN TEST CPU SENDS FSK SIGNAL OF 1 7KHz 85Hz TO MIXER U17 ANT_TEST NORMALLY IT BECOMES L IN CASE OF ANTENNA SHORTAGE IT BECOMES H DOT2_SEL IN H DOT2_9V IS SUPPLIED ON DOMESTIC BROADCASTING 4 2095MHz IS SELECTED IN L DOT2_9V IS SUPPLIED ON DOMESTIC BROADCASTING 490KHz IS SELECTED 2 2 RECEIVER 2 2 1 Receiving frequency switching Signal input to antenna is divided to two signals through sprit SP1 International frequency is input to the filter of next step Domes
16. en a d Aas d DOTZ_SEL 40 470 5 4HC4060M96 E m 16 so 16 100 min E R45 Sl 535 R46 X3 S 7 439MHz im 8 2608MHz ole id 7 8128MHz KICTWTAFK VBIAS VEC 11 Es ES BE LP pr t iM f T 10 d UD P h SEAR de g Bla F R54 2 9 e 9 77 SC 2 d eo gt im RS 13 8 sk eb EB 913 elo 2 vss Sla S o 38 a 014 vss af EOTAHGADSONGE ss Spokes 579838 z PO i a d 220 YP m HT 77 a DOT2_9V x HE DOT2_9V DOT2_9V venue A A VBIAS Me Q e R128 R57 se By kes 10K 210K 0 Sg IF2 S 1 ei a S KDS114 6 gt e Pi E 6 c200 D8 EZ gt ie E E GER 0 1 KDS114 R61 a S DSi 202 47 man 5 H SA612AD 0 1 KDS114 AN dd bo HEN 16 LF3 8 x Dee ds Ils d SE 19 SH A MRS ra a H mm mI T rr 5 Y vec ECHUL NJM2211M of 1577 7 ne d a H 6134 3 S 8796 a SAS 22 vec Ly cae ve B m7 ECH 2138 Gei BK FS 10 x gt 13 cap m 1 Bade ER F6 ECH lt 9V at LOK 11 9v 3 cno AR 0 1 E ALARM DET 24 lt au T5RY N Go 9 sf ba L s de 4 2 pp x arn _ AH 7 El al psk par SES Dir RES 13 R131 ls Y vio 7 va 3 0 ad la Is 26 a d AAN jou Y wer o un tel S men w HS E R81 sie ole 4 27 E bel 8 2 pa m An de E J5 a 3 ojo ola k LL4148 GS08 Es kai ce we HB 1M2012 202JT ERS SDBB 282 ER l i Pr Ss 47K Sei D R84 HB 1M2012 202JT E d d BS Se F 4 g P 47K F El En T 3 5 E Fe FS
17. er U7 amp gets amplified Q13 after removing unnecessary signal Amplified audio signal is input to demodulation IC U19 NJM2211M enters into CPU demodulated as DOT signal 2 2 4 490KH amp 4 2095MHz receiving circuit Another signal divided from sprit SP1 selects 490KHz amp 4 2095MHz according to selective diode D1 amp D2 If DS9V is added to L5 D1 turns On selects 4 2095MHz It does band path filter amplification through T8 T9 Q6 T7 It enters into mixer U5 gets mixed with 3 7195MHz created at U23 U9 amp creates 490KHz This does band path filter amp amplification through FL2 Q7 It enters into mixer U6 gets mixed with 488 3kHz created at U11 amp creates AF signal 1 7KHz AF signal passes 1 7KHz audio band path filter U7 amp gets amplified Q13 after removing unnecessary signal Amplified audio signal is input to demodulation IC U19 NJM2211M enters into CPU demodulated as DOT signal 2 2 5 demodulation circuit RF RECEIVER TEST 1 In case of 518KHz TEST RX1_TEST becomes H U14 A turns ON 516 3KHz is supplied to mixer 17 by DOT2_SEL signal L 518KHz 85Hz mixed with FSK signal of 1 7KHz 85Hz enters into switched relay RY 1 So we can check RECEIVER amp DUTY ration 2 In case of 490KHz TEST RX2_TEST becomes H U14 B turns ON 488 3KHz is supplied to mixer 17 by DOT2_SEL signal L 490KHz 85Hz mixed with FSK signal of 1 7KHz 85Hz enters into switched re
18. lay RY 1 So we can check RECEIVER amp DUTY ration 3 In case of 4 2095MHz TEST RX2_TEST becomes H U14 B turns ON 488 3KHz is supplied to mixer U18 by DOT2_SEL signal H 4 2095MHz 85Hz mixed with FSK signal of 1 7KHz 85Hz mixed U18 with 3 7195MHz by adding T5 enters into switched relay RY1 So we can check RECEIVER amp DUTY ration antenna TEST If antenna terminal gets short DC1 6V is supplied to U4 A Voltage gets lower than basic voltage 2 1V ANT_TEST terminal becomes 5V which informs users that there are problems in antenna Normal status becomes about 3 5V higher than basic voltage 2 1V It becomes OV which informs to CPU that there is no problem 3 Error check description 3 1 System self check MENU 6key 3 2 If power of NAVTEX is not turned on Link power cable 8 check if LED1 of N 727 PCB is ON In case of OFF Check the severance of fuse power cable reverse wire linking red wire is linked to terminal black wire is linked to terminal crushing short circuit power source grounding etc In case of ON If LED2 8 LED3 are OFF input voltage should be DC 12V 24V 30 10 Check the circuits around U4 U23 U14 of N 727PCB amp change the circuits Check if ON switch of N 728 KEY PCB is working If No 3 pin of U14 is not changed from H to L when you press ON SW check N 728PCB amp cable If LED2 amp LED3 are ON In case of no screen showing at first check 2
19. tic frequency another signal divided from sprit SP 1 is selected as 490KHz 8 4 2095MHz by selected diodes D1 8 D2 If DC9V DOT_9V is added to D2 D2 turns ON selects 490KHz If DC9V DOT_9V is added to D1 D1 turns ON selects 4 2095MHz TMP J01X V6 N N m T lt ES S 5 i Ss gt E H le gt EN aa Na 0 I il T O 4 AN al a un A ana o A aN lt C K a S Oo of lt 4 2095MHz Noa a 7 CLOT U HE vi AM 1 o cS ACT IVE_ANT 50 2 2 2 518KHz Receiving circuit Signal divided from sprit SP1 does band path filter amp amplification through T2 T3 Q14 T1 FL1 Q1 It enters into mixer U2 gets mixed with 516 3KHz created at U10 amp creates AF signal 1 7KHz AF signal passes 1 7KHz audio band path filter U3 amp gets amplified Q12 after removing unnecessary signal Amplified audio signal is input to demodulation IC U20 NJM2211M enters into CPU demodulated as DOT signal 2 2 3 490KHz receiving circuit Another signal divided from sprit SP1 selects 490KHz amp 4 2095MHz according to selective diode D1 amp D2 If DS9V is added to L4 D2 turns On selects 490KHz It does band path filter 8 amplification through T5 T6 Q3 T4 FL2 Q7 It enters into mixer U6 gets mixed with 488 3KHz created at U11 amp creates AF signal 1 7KHz AF signal passes 1 7KHz audio band path filt
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