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Furuno FS-1503, Руководство по обслуживанию

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5-8

5.4  Measurement

CAUTION: Do not turn any adjusters until you understand their functions. Use
calibrated measuring instruments.

1.  Frequency Adjustment

Note)

 Allow a frequency counter for enough warm-up time.

1. Turn on the FS-1503, and leave it for more than 3 minutes.

2. Connect a frequency counter to 2

 

nd Local oscillator output, TP3 (H) and TP4 (C) on

the TX/RX board.

3. The reading must be 54 MHz 

±

 10 Hz. If not, adjust C554.

FAN

VCO

DDS

TX/RX Board 
(05P0666)

C554: Freg. Adj.

Y501: REF. X'tal 36.0 MHz

TP4 (GND)

TP3 (54 MHz)

Front Panel

U25 (NB PCB)

Figure 5-2  Frequency Adjustment

Содержание FS-1503

Страница 1: ...SSB RADIOTELEPHONE MODEL FS 1503...

Страница 2: ...a l e r FURUNO ELECTRIC CO LTD c 9 5 2 A s h i h a r a c h o N i s h i n o m i y a J a p a n 6 6 2 Te l e p h o n e 0 7 9 8 6 5 2 1 1 1 Te l e f a x 0 7 9 8 6 5 4 2 0 0 A l l r i g h t s r e s e r v e...

Страница 3: ...nging System Settings 4 2 4 2 System Channels List 4 3 4 3 Channel Programming 4 8 4 4 Power Data Setting 4 13 4 5 BC Band Filter Setting 4 18 4 6 Setting for NBDP DP 6 4 19 Chapter 5 Maintenance 5 1...

Страница 4: ...VAC 24 VDC DSC 6 DSC Terminal NBDP MF HF RT DP 6 NBDP Terminal MF HF RT DSC COUPLER REMOTE CONTROL 13 6 VDC MIC 30 A DSC MF HF RT AA 50 MF HF WR Rem 1 Rem 2 Rem 3 Rem 4 Rem 5 MIC HANDSET SP MF HF RT o...

Страница 5: ...o 000050903 FS 1503 04 The table below lists the complete set Standard Supply Name Type Q ty Code No Remarks SSB Transceiver FS 1503 1 000050905 Antenna coupler AT 1503 1 000050904 CP05 07600 1 000050...

Страница 6: ...lt 0P05 12 1 005923680 For fixing antenna 05S0949 0 L 20M 1 000130485 05S0949 0 L 30M 1 000130486 05S0949 0 L 40M 1 000130487 Cable Assy 05S0949 0 L 50M 1 000130488 Control Cable between main unit and...

Страница 7: ...ode No Remarks E 22 1 000050632 Doublet Antenna Kit E 24 1 000050634 Single Wire Antenna Kit E 25 1 000050635 Doublet span Antenna Kit E 26 1 000050636 Whip Antenna Lead in Kit Antenna materials E 27...

Страница 8: ...ng time and thus enables telex communication It has a built in two tone alarm and is powered by a 13 6 V supply The transmitter works in 1 6 MHz to 23 0 MHz 150 Wpep and in 23 0 MHz to 27 5 MHz 75 Wpe...

Страница 9: ...RX OUT PA ON TEMP ALC RF BK ON CLK ST DATA 12 V ANT 13 6 V 13 0 V 13 6 V 30 A 12 V TUNE BUSY THROU DUMMY 12 V CHK EXC DDS DATA CLK RX MUTE TX KEY TXD RXD TX KEYED PTT T R MUTE SQ SIG S TONE EXC ON PA...

Страница 10: ...line relay and a protection circuit against over voltage and over current The PA section in cludes a transmitting high frequency power amplifier circuit and a tempera ture detecting circuit The TX FI...

Страница 11: ...TX 3rd mod RX 1st conv TX signal 3Lo 2Lo 1Lo 1 5 455 456 5 54000 54455 F F 1 5 F 54456 5 RX signal 3Lo 2Lo 1Lo kHz kHz J3E TX J3E RX 1 5 455 456 5 54000 54455 F F 1 5 F 54456 5 TX signal 3Lo 2Lo 1Lo 1...

Страница 12: ...d RX 2nd conv TX 3rd mod RX 1st conv TX signal 3Lo 2Lo 1Lo 1 7 455 456 7 54000 54455 F F 54455 RX signal 3Lo 2Lo 1Lo kHz kHz J2B RX J2B TX Y B 1700 85 Hz Y B Y B Y B Y B Y B Y B Y B Y B Y B Y B 1 9 45...

Страница 13: ...bit single chip microcomputer with integrated peripheral functions such as RAM ROM timer serial I O A D converter and I O ports The system program ITU frequency table system settings initial values of...

Страница 14: ...gister strobe signal P45 OUT ST SYN SYN shift register strobe signal P46 OUT ST TX RX TX RX shift register strobe signal P47 OUT ST PA FIL TX FIL shift register strobe signal P17 OUT TUNE Ant Coupler...

Страница 15: ...erminal P10 IN UP Freq channel up signal P11 IN DOWN Freq channel down signal P50 OUT D0 LCD data key scan P51 OUT D1 LCD data key scan P52 OUT D2 LCD data key scan P53 OUT D3 LCD data key scan P54 OU...

Страница 16: ...FIL N FIL M Q1 2 3 4 5 6 7 8 LPF 6 LPF 5 LPF 4 LPF 3 LPF 2 LPF 1 Q1 2 3 4 5 6 7 8 BAMD 1 BAND 2 BAND 3 BAND 4 H L DDS RESET DDS U503 U502 U504 3Lo 1Lo 1Lo U501 U11 M54972FP U12 M54972FP U501 AD7008AP...

Страница 17: ...M54972P consists of 8 D flip flops and 8 latches connected to the outputs of the flip flops Serial data signals input to the serial data input S in and clock pulses input to the clock input T Every ti...

Страница 18: ...0 0 0 1 1 0 0 0 0 1 OFF 1 0 0 0 1 0 1 1 1 0 1 0 1 1 0 ON 1 0 0 0 1 0 1 1 1 0 1 0 1 1 0 ON 1 0 0 1 1 0 1 1 1 1 1 0 1 1 0 ON 1 0 0 0 1 0 1 1 1 0 0 1 0 1 0 ON 1 0 0 0 1 0 1 1 1 0 0 1 0 1 0 ON 1 0 0 1 1 0...

Страница 19: ...ist Status IC OUT BIT Functions TX RX Q8 7 LPF1 0 1 to 2 4 MHz L Q7 6 LPF2 2 4 to 3 6 MHz L Q6 5 LPF3 3 6 to 6 0 MHz L Q5 4 LPF4 6 0 to 10 0 MHz L Q4 3 LPF5 10 0 to 18 0 MHz L Q3 2 LPF6 18 0 to 30 0 M...

Страница 20: ...F 54 455 MHz 1 5 kHz 2Lo 54 MHz 3Lo 456 5 kHz T RX Fo 1 5 kHz AF 1 5 kHz 54 455 MHz 455 kHz DDS PLL 1 1 2 PLL 3 1 100 36MHz Ref OSC 1 Lo 2 Lo 3 Lo Ref Figure 2 6 Frequency Conversion Table 2 5 Freque...

Страница 21: ...receives Unlock Signal from PLL IC U502 or U504 TX and RX are disabled and frequency indication blinks Phase Accumulator ROM Look up Table D A FIL Ref CLK Freq Select Data OUTPUT Simplified DDS Block...

Страница 22: ...t frequency of DDS and the oscillating frequency of PLL is as follows DDS output frequency fo K fc 2N where fc is DDS clock frequency 18 MHz the reference frequency 36 MHz is divided into 1 2 N is DDS...

Страница 23: ...99999 MHz 57 45500 to 60 45499 MHz 2 L 6 0 to 9 49999 MHz 60 45500 to 63 95499 MHz 2 H 9 5 to 13 49999 MHz 63 95500 to 67 95499 MHz 3 L 13 5 to 17 49999 MHz 67 95500 to 71 95499 MHz 3 H 17 5 to 21 499...

Страница 24: ...he output signal from FL2 2 4 kHz through R101 H3E CARR LIM CR27 30 FL2 2 4 k FL3 FL4 6 0 k 0 4 k MIC LINE TONE MIC ON MIC TONE TP6 U5 2 2 R156 INTERCOM 6 dB H3E 3Lo 456 5 kHz CR22 Q16 U14 COMP TX TP5...

Страница 25: ...f checked in a condition 3 MHz J2B 1700 Hz tone signal and a power data of 255 Reference When a transmitting power is 140 W to 150 W CHK EXC level is 2 4 to 2 6 V PA FIL section The transmitting outpu...

Страница 26: ...uency L P F K10 K4 L P F K11 K5 L P F K12 K6 L P F K13 K7 L P F K14 K8 L P F K15 K9 B1 0 1 to 2 4 MHz B2 2 4 to 3 6 MHz B3 3 6 to 6 0 MHz B4 6 0 to 10 0 MHz B5 10 0 to 18 0 MHz B6 18 0 to 30 0 MHz Vf...

Страница 27: ...2 20 ALC ALC REF POWER DATA EXC OUT Q26 25 ALC Circuit U6 ALC U7 8 TX RX Board Figure 2 13 ALC Signal...

Страница 28: ...to NB J3E The receiving signal F 1 5 kHz from PA FIL board is passed through a 30 MHz L P F and amplified G G grounding amplification by Q1 2 The gain is about 10 dB This signal is passed through 30 M...

Страница 29: ...curs Changing the value of a resistor R35 can adjust the noise detection level of the NB In receiving TLX the NB is not operated because it cuts top portions of the signal pulses Note The transmitting...

Страница 30: ...ed by CR18 and CR19 C77 R60 and R62 determine the AGC time constant C77 and R60 determines the AGC attack time to be about 10 msec R61 and R62 deter mines AGC decay time in AGC FAST to be about 100 ms...

Страница 31: ...ses the signal for an adequate curve to control the AGC circuit RF gain can be changed by MIF command RF xx output from an external unit Rotating RF GAIN volume cancels the MIF command TX RX Section A...

Страница 32: ...INE OUT 1 2 13 U19 C140 INTERCOM C141 U13 2 2 8 9 6 U21 SP OFF PHONE SP EXT SP AF VR TONE TX TONE TX AF LINE LINE IN U20 11 10 12 U19 11 10 12 LINE ON C142 Q32 U19 9 6 8 MIC TONE LINE IN U19 5 MIC ON...

Страница 33: ...TX RX PCB SW REG OPTION J1 J3 J4 J2 12 V J7 12 V J1 POWER ON 13 6 V R12 C9 Figure 2 20 Power Supply Circuit The allowable input voltage of power supply is from about 8 V to 17 V Rating volt age 13 6...

Страница 34: ...2 V 3 0 V GND 4 0 V GND J1 1 12 V 2 12V 3 0 V GND 4 0 V GND J7 1 12 V 2 12 V 3 0 V GND 4 0 V GND 5 0 V GND PA FIL Board SW REG Board J2 J3 J1 J2 Figure 2 21 Connection of SW REG Board The block diagra...

Страница 35: ...turns ON relays K3 to K12 that bypass the matching coils thus prevent ing the coils to be burnt out An optional dummy antenna 10 250 pF 100 W can be built in for the purpose of maintenance work AT 15...

Страница 36: ...rcuit and changes the constants of L C in L type matching circuit 5 If SWR is less than 1 5 the matching data is stored in the internal RAM of U8 If SWR is more than 2 0 or it takes longer than 15 sec...

Страница 37: ...is about 80 pF in 1 6 MHz In this case LI is 120 H that is too high Adding Cs 50 pF increases the equivalent value of Ca to about 130 pF and leads to the necessary value of LI 75 H that is within a m...

Страница 38: ...eping relays off Outputting TUNE END Bypass Keeping relays on Outputting TUNE END and TUNE ERROR Vf Data obtained SWR 1 5 SWR 1 5 DATA Retrieve RAM DATA in us YES YES YES NO NO NO K1 K2 Freq VSWR Phas...

Страница 39: ...OFF See note 1 See note 2 Changing L for minimum Vr Changing C for minimum Vr NO NO YES DATA Memory Note 1 Inductive tuning At first a dip point of the reflection voltage Vr is sought by varying the...

Страница 40: ...eceiving in scanning and sweeping modes 4 Receiving frequency is less than 1605 kHz 1 always sets to through THRU always Table 2 7 Through Operation System Setting 9921 Condition THROU Signal Remarks...

Страница 41: ...0 is applicable to both types with modifications in the REMOTE boards Level Converter IC U4 MC145406AP LINE IN LINE OUT RX MUTE TX KEY TXD RXD U5 PC357NT U5 PC357NT TX RX AF Circuit CPU Board REMOTE A...

Страница 42: ...x Rx 4 Remote B DSC 5 Distress Frequency Tabile 3 Enter a command and a parameter For example type FT1234560 and press Enter to set TX freq to 12345 60 KHz 4 If the entered command is executed appears...

Страница 43: ...setting FF RF GAIN MAX to 00 RF GAIN MIN SQS Squelch on setting SQR Squelch off setting SCS start scanning SCR stop scanning PO TX power setting 0 1 2 LOW 3 HIGH TU TUNE OK TUNE ERROR Tuning IC S Inte...

Страница 44: ...e is 1A U3 PC357NT RX MUTE CONTROL 05P0459 CPU Board Receiver CONTROL 1 GND 2 NC 3 TX KEYED 4 RX MUTE 5 BK 12V 6 BK 12V 7 NC BK 12 V 24 V CR1 Q3 2SD799 V06C TX KEYED 5 V U5 PC357NT RX MUTE TX KEYED L1...

Страница 45: ...Main Unit 1 FS 1503 Front Panel Internal Speaker MIC HANDSET FREQ CH RF GAIN Power SW AF GAIN LCD 2 FS 1503 Rear Panel 13 6 VDC SPKR REMOTE OPTION CONTROL OPTION COUPLER ANT GND Chapter 3 Location of...

Страница 46: ...rd Q25 2SC3133 FL 3 0 4 kHz Option C554 Freq ADJ 30 A 2 13 6 V VCO DDS FAN Y501 REF X tal 36 MHz R101 H3E CARR R156 TX GAIN CONTROL 05P0459 OPTION A 05P0457 RS 232C B 05P0458 Current Loop REMOTE OPTIO...

Страница 47: ...9 PA BIAS DRIVE 2SC3133 PA 2SC3240 R15 13 V ADJ J9 BC BAND FIL Note 2 J8 SW REG 05P0668 OPTION Note 2 BC BAND FIL Setting J9 8 1 6 to 30 0 MHz J8 9 0 1 to 30 0 MHz Default Note 1 TX FIL ranges B1 0 1...

Страница 48: ...3 4 5 CPU Board 05P0665 SP 8 0 3 W U5 X24C16S EEROM CR1 CPU RUN U2 HD61602 LCD CONT U6 HD6475328 CPU R1 LCD Bril Adj...

Страница 49: ...3 2 AT 1503 1 AT 1503 05P0669 Standard type S1 TUNE TB 2 GND F1 1 35 A Switch TX IN RX OUT ANT R2 BAL ADJ or ADJ U8 HD63B01Y0E76P CPU J1 SELF TEST TUNE Built in dummy type optional DUMMY 05P0670 OPTI...

Страница 50: ...3 6 3 3 Power Supply Unit 1 PR 200 635S1002 Front Right hand Side View FAN Front Top View 635S1001 Front R6 13 6 V AVR ADJ R24 32 V Short circuit Left hand Side View...

Страница 51: ...3 7 2 PR 270 Front Right hand Side View Front Change tap connection according to ship s mains 0 110 120 V R5 13 6 V AVR ADJ 635S1001 635S1002 Top View Front Left hand Side View...

Страница 52: ...ing up procedure of the FS 1503 System Channel 9998 Setting Select 0 or 1 Changing System Settings Power ON Registering User Channel 0 01 to 99channel 1 00 to 99channel TX RX Frequencies Adjusting TX...

Страница 53: ...Preset value 2 Select the system channel 9999 by rotating the FREQ CH knob 3 Enter a password Press CH type password and then press ENT 4 Select a channel to be changed its setting by rotating the FRE...

Страница 54: ...AX Weather Facsimile Usage TX RX RX Disable 1 1 2 9917 2 tone TX Test TX 2 tone Enable Test Disable Both Enable Both Disable 0 0 0 9918 Test Alarm TX Frequency 1605 00 to 29999 9 kHz 2191 kHz 9919 Squ...

Страница 55: ...ROM User channel only 3 Marine Free Frequencies can be selected in the following range ITU and User channels are also available 1606 5 4438 6200 6525 8100 8815 12230 13200 16360 17410 18780 19800 2200...

Страница 56: ...y momentarily 7 9909 TLX RX Bandwidth 1 Narrow 0 4 kHz requires an optional filter SF0L04 8 9910 TLX System Delay Set to 10 msec normally 9 9912 2182 kHz Class of Emission Selects class of emission fo...

Страница 57: ...ed when Furuno DSC or NBDP terminal is connected 1 TBUS For equipment made by Thrane Thrane A S of Denmark 16 9951 Scan Stop Signal Level 0 SQ Level Scan stops when the squelch opens 1 to 9 Scan stops...

Страница 58: ...RX Enabling to write TX and RX frequencies on user channels 2 RX Enabling to write RX frequencies on user channel 3 Disable Disabling to write frequencies and adjust TX power on user channel 20 9999 P...

Страница 59: ...1 While pressing and holding down CH turn the power on 2 Select system channel 9999 by rotating the FREQ CH knob 3 Enter a password Press CH type password and then press ENT 4 Select channel 9998 by r...

Страница 60: ...play will appear 0 01 MEMO Channel Number Channel Name 12 Press CH and select a desired number or alphabet by rotating the FREQ CH knob And then press ENT 13 Rotate the FREQ CH knob to select a desire...

Страница 61: ...time On system channel 9901 press CH 1 and ENT in this order How to erase channel name 1 Select a channel name to be erased Carry out steps 1 to 5 on page 4 8 and select the channel name by rotating...

Страница 62: ...symbols and their corresponding letter are shown below A B C D E F G H I J K L M N O P Q R S T U V X Y Z 0 1 2 3 4 5 6 7 8 9 W Note To indicate the channel name system channel 9906 must be set to 0 C...

Страница 63: ...for each user channel and 2182 kHz is set individually Where manually entered frequency or ITU channel is permitted the data is set on each band and each class of emission J3E power data is also used...

Страница 64: ...0 3 4999 3 5 3 9999 4 0 5 9999 6 0 7 9999 8 0 11 9999 12 0 15 9999 16 0 17 9999 18 0 21 9999 22 0 24 9999 25 0 29 9999 ITU Channel Using above data for each frequency range and in each emission modes...

Страница 65: ...T appears during TX 0 2 4 6 8 10 During TX RF output level can be read NB TR 4 Set power data by rotating the FREQ CH knob The data can be set to from low power data plus 1 to 255 Read the power meter...

Страница 66: ...ss 9 and LOW power data appears 4001 140 J3E ITU Channel Number LOW Power Data ITU R AGC DUP T appears during TX 0 2 4 6 8 10 During TX RF output level can be read LOW 4 Set power data by rotating the...

Страница 67: ...ess TUNE 7 TUNE appears on the display and the coupler starts tuning When the tuning is completed successfully TUNE OK appears 3 While pressing and holding down ENT press TUNE 7 and TUNE power data ap...

Страница 68: ...to 1 Position 1 Receiving frequency range from 1 6 MHz to 30 MHz Position 2 Receiving frequency range from 0 1 MHz to 30 MHz PA FIL Board J8 J9 0 1 to 30 MHz 1 6 to 30 MHz SW REG Board OPTION 2 1 2 1...

Страница 69: ...30 10 dBm MIF Tune OFF ON Freeze OFF ON AGC OFF ON Emission OFF ON TX RX MSG Save OFF ON Edit Before Sending OFF ON Timer System OFF UTC STM JST Time Date Display Mode Normal Reverse Self Test Slave D...

Страница 70: ...ent DANGER 5 1 Periodical Checks Regular maintenance is important for good performance Before performing any mainte nance turn off the power 1 Cleaning of the display Use a soft cloth with a slight am...

Страница 71: ...e the hand from TX when all indications appear on the screen The test com mences and the display changes as follows R Good T Good E T Good P T Good P Note If an error is detected no Good appears Recei...

Страница 72: ...holding down TX 13 5 MHz produced from 2LO is input to antenna Mode TLX AGC ON RF GAIN automatically set to Max U22 ON TX RX PCB ON J6 6 on TX RX PCB YES NO NO YES 0 8 V RF OUT 20W 2 4 V 140W 3 MHz T...

Страница 73: ...Self Test completed NO YES SET j TLX Tone F 1700Hz Freq 3MHz Dummy ON Tune power data F 35 TLX Tone 1700 Hz Freq 3 MHz Dummy ON Tune power data 35 Reset to 3 MHz TLX POWER DATA 35 RF 5 RF OUT of 30 W...

Страница 74: ...3 2 SCAN 6 6 A ALM E TX 3 RX 7 CH b ENT F 4 9 4 Turn off the power after the test Antenna Coupler Check 1 Remove the antenna coupler cover and shield cover inside 2 Change the jumper J1 to SELF TEST...

Страница 75: ...mal 1 Loose connection on PCB Defective flat cable on CPU board Check connections Replace CPU board 1 Specific key does not work Carry out self test 6 No key response 2 All keys do not work CR1 on CPU...

Страница 76: ...heck antenna Replace COUP board 2 2 If sensitivity is low on all bands check main unit with antenna coupler discon nected If main unit is NG RX RF circuit is defective Replace TX RX board 2 3 If sensi...

Страница 77: ...r for enough warm up time 1 Turn on the FS 1503 and leave it for more than 3 minutes 2 Connect a frequency counter to 2 nd Local oscillator output TP3 H and TP4 C on the TX RX board 3 The reading must...

Страница 78: ...tput level so that the ratio between AF output and noise output is 20 dB The output should be less than 3 dB V With a 8 ohm speaker connected the S N is 20 dB when AF noise output is 200 mVrms and AF...

Страница 79: ...a connection as below 50 Pwr meter 50 ANT 50 Coax FS 1503 AF OSC MIC H C 13 6 V AF OSC ATT 200 200 200 600 6 dBm 600 6 dBm 600 46 dBm 3 4 1 2 PTT SW GND PTT oscilloscope Figure 5 4 Measurement of TX o...

Страница 80: ...onnector 2 Make a open circuit on FL3 and connect a DC current meter 3 While pressing the PTT switch down adjust R39 PA BIAS so that the meter reads 450 to 550 mA SW REG PA FIL Board 05P0667 Front Pan...

Страница 81: ...it at least 3 minutes to allow residual charge to subside before acceessing the inside of the equipment DANGER 1 Adjustment Table 5 2 Adjustment 1 2 Board Item Setting Adjuster Check Point Level Remar...

Страница 82: ...N 1 to 5 dB V SSG Level AF output of 1 W NB Function External pulse noise mixed CR11 12 A GND Negative pulse LINE OUT Level RX SIG 4 MHz TLX RF GAIN MAX AGC ON REMOTE Connector 10 H 11 C 3 to 9 dBm 60...

Страница 83: ...side before acceessing the inside of the equipment DANGER 2 Measurement Setting Details A MIC IN 40 dBm 1500 Hz 600 4 MHz J3E Power Data 220 B PTT ON No AF signal C Receiving mode D SSG 100 dB V 50 4M...

Страница 84: ...MIC Input OSC Circuit TP1 TP2 C 0 8 Vp p 1 Lo Fo 54 455 MHz TP3 TP4 C 1 1 Vp p 2 Lo 54 MHz TP7 TP6 C 1 0 Vp p 3 Lo 456 5 kHz RX Circuit Q1 2 D GND 1 2 Vp p RX RF FET 2SK937 S GND D 0 11 Vp p Q1 2 D G...

Страница 85: ...5 16 5 7 Location of Parts 1 CPU Board 05P0665...

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Страница 89: ...5 20 5 DUMMY CONT Board 05P0670 Optional 6 SW REG Board 05P068 Optional...

Страница 90: ...AP1 1...

Страница 91: ...AP1 2...

Страница 92: ...AP1 3...

Страница 93: ...AP2 1...

Страница 94: ...AP2 2...

Страница 95: ...AP2 3...

Страница 96: ...AP2 4...

Страница 97: ...AP2 5...

Страница 98: ...AP2 6...

Страница 99: ...AP2 7...

Страница 100: ...AP2 8...

Страница 101: ...AP2 9...

Страница 102: ...AP2 10...

Страница 103: ...AP2 11...

Страница 104: ...AP2 12...

Страница 105: ...AP2 13...

Страница 106: ...AP2 14...

Страница 107: ...AP2 15...

Страница 108: ...AP2 16...

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Страница 115: ...CPU 05P0665 C5614 K07 S 7 050666 1 2 C5614 K04 S 8 TX RX 05P0666 2 2 C5614 K05 S 9 NB DET 05P0466 C5548 K12 S 10 CONTROL 05P0459 C5548 K11 S 11 REMOTE A 05P0457 C5548 K08 S 12 REMOTE B 05P0458 C5548 K...

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Страница 134: ...of T2 as shown in Figs 1 and 2 If C27 is already fitted change it to 330 pF The PA transistor 2SC2879A does not require an insulator Related Furuno Information FQ5 2004 036 Fig 1 C27 330 pF on 05P066...

Страница 135: ...board 05P0667A Fig 6 CPU board 05P0665A and PANEL board 05P0664A Fig 5 TX RX board 05P0666B C PANEL board No shield cover CPU board New TX RX board has no shield cover for PLL circuit 3 3 PA Transist...

Страница 136: ......

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