Furuno FS-2570 Technical Information Download

Page: 1 / 67

Pub. No.: SB-2241

Date : November 1, 2002

TECHNICAL

INFORMATION

TEST REPORT ON THE PERFORMANCE OF

MARINE SSB RADIO TELEPHONE

Trade Name: FURUNO

Type: FS-2570

FURUNO ELECTRIC CO., LTD.

NISHINOMIYA CITY, JAPAN

Summary of Contents for FS-2570

Page 1: ...Pub No SB 2241 Date November 1 2002 TECHNICAL INFORMATION TEST REPORT ON THE PERFORMANCE OF MARINE SSB RADIO TELEPHONE Trade Name FURUNO Type FS 2570 FURUNO ELECTRIC CO LTD NISHINOMIYA CITY JAPAN ...

Page 2: ...of 66 November 1 2002 All data herein contained is true and correct to my best knowledge Masayuki Mori Manager Radio Communication Engineering Section Research and Development Department Marine Electronic Products Division FURUNO ELECTRIC CO LTD ...

Page 3: ...RIOUS EMISSIONS AT ANTENNA TERMINAL FCC Rule Part 2 1051 27 3 6 FIELD STRENGTH OF SPURIOUS RADIATION FCC Rule Part 2 1053 40 3 7 FREQUENCY STABILITY FCC Rule Part 2 1055 46 3 8 SUPPRESSION OF INTERFERENCE FROM RECEIVER FCC Rules Part 80 217 and 2 1051 54 4 TRANSMITTER POWER ADJUSTMENT PROCEDURE FCC Rule part 2 1033 55 5 PHOTOGRAPHS TO REVEAL EQUIPMENT CONSTRUCTION AND LAYOUT FCC Rule Part 2 1033 5...

Page 4: ... to 29 9 MHz receive d Class of Emission J3E LSB USB Telephony H3E receive only F1B J2B DSC NBDP F3C receive only e RF Output Power 250 W e Power Supply 24 V DC 1 5 A receive 35 A max transmit f Dimensions Weight 1 Transceiver unit FS 2570T 560 mm H x 340 mm W x 135 mm D 15 0 kg 2 Antenna Coupler AT 1560 25 390 mm H x 267 mm W x 90 mm D 8 7 kg 3 Control unit FS 2570C 121 mm H x 300 mm W x 110 mm D...

Page 5: ... 50 A S No 13086029 d PLOTTER Manufacturer EPSON Model HI 80 S No 02006569 e BROADBAND ROD ANTENNA Manufacturer AILTECH Model 95010 1 10 kHz to 40 MHz S No 496 f BICONICAL ANTENNA Manufacturer ELECTRO METRICS Model BIA 25 20 MHz to 220 MHz S No 2650 g FREQUENCY COUNTER Manufacturer TAKEDA RIKEN Model TR5824 10 Hz to 600 MHz 5 x 10 8 day S NO 41930036 h AUDIO SIGNAL GEN 2 ea Manufacturer KENWOOD Mo...

Page 6: ... 2002 Page 5 of 66 j OSCILLOSCOPE Manufacturer SONY TEKTRONIX Model 2445 S No B02576 k STORAGE OSCILLOSCOPE Manufacturer TEKTRONIX Model 2330 S No 300462 L MODULATION ANALYZER Manufacturer HEWLETT PACKERD Model 8901B S No 2718A01184 ...

Page 7: ...age 6 of 66 2 IDENTIFICATION OF EQUIPMENT FCC Rule Part 2 925 The following nameplates are permanently fixed on the equipment FCC ID ADB9ZWFS2570 Material of nameplate Polyester film t 188 µm ON TRANSCEIVER UNIT mm ON ANTENNA COUPLER UNIT ...

Page 8: ...nerating each 400 Hz and 1800 Hz at an equal level are adjusted to produce transmitter RF output power 250 Wpep Collector current is then measured Measurement is made on every test f frequency on class of emission J3E Fig 3 1 1 OSCILLOSCOPE Model 2445 S N B025716 SONY TEKTRONIX EUT SSB RADIOTELEPHONE VOLT METER AM METER 50 Ω 250 W WATT METER Model DJ522 OH 2 S N 46507 TOKYO DENPA DC POWER SUPPLY M...

Page 9: ... 18 8 230 6200 0 J3E 24 18 8 220 8195 0 J3E 24 16 0 220 12230 0 J3E 24 15 2 220 16360 0 J3E 24 17 0 240 18780 0 J3E 24 15 0 220 22000 0 J3E 24 16 0 210 25070 0 J3E 24 16 0 200 Power is calculated by doubling the readout of Wattmeter showing average power as explained in paragraph 3 1 3 below 3 1 3 Relation between Average Power and Peak Envelope Power 3 1 3 1 CW Single Tone Vpp 2 2 2 Vpp 2 Average...

Page 10: ...ier power m depth of modulation A 2 2 A 2 While Pc R L 2R L and Vpp 2 1 m A 1 Vpp Vpp 2 Therefore Pc 2 2RL 2 1 m 8 1 m 2 RL m 2 Vpp 2 Therefore Pa 1 2 8 1 m 2 RL Vpp 2 2 2 Vpp 2 PEP Pp RL 8RL m 2 Pp Therefore Pa 1 2 1 m 2 1 m 2 or Pp Pa 1 m 2 2 m 1 Pp 2 67 Pa m 0 8 Pp 2 47 Pa m 0 5 Pp 2 1 Pa Vpp m A A ...

Page 11: ... to as 0 dB Fig 3 2 1 1 3 2 1 2 Test Result 1 Output level for respective audio frequency is plotted in Fig 3 2 1 2 2 Carrier levels on each mode are as in Table 3 2 1 Table 3 2 1 Class of emission mode below pep Limit J3E Suppressed Carrier mode 56 2 dB at least 40 dB EUT SSB RADIOTELEPHONE Watt Meter Model DJ522 OH 2 S N 46507 Tokyo Denpa DC Power Supply Model GP035 50R S N 13086029 Takasago Aud...

Page 12: ...Pub No SB 2241 Date November 1 2002 Page 11 of 66 Fig 3 2 1 2 Audio Frequency Response ...

Page 13: ...d to the transmitter in equal level The input level is varied and PEP is measured Fig 3 2 2 1 OSCILLOSCOPE Model 2445 S N B025716 SONY TEKTRONIX EUT SSB RADIOTELEPHONE VOLT METER AM METER 50 Ω 250 W WATT METER Model DJ522 OH 2 S N 46507 TOKYO DENPA DC POWER SUPPLY Model GP 035 50R S N 13086029 TAKASAGO AUDIO SIGNAL GEN Model AG 253 S N 1100026 KENWOOD AUDIO SIGNAL GEN Model AG 253 S N 7090003 KENW...

Page 14: ...Pub No SB 2241 Date November 1 2002 Page 13 of 66 3 2 2 2 Test Result Measurement is made on frequency 4065 kHz The results are shown in Fig 3 2 2 2 Fig 3 2 2 2 Power Limiting vs Audio Input Voltage ...

Page 15: ...n 50 kHz IF bandwidth resolution bandwidth 300 Hz and video bandwidth 300 Hz Fig 3 3 1 3 3 2 Test Result Results are shown in Fig 3 3 2 to 3 3 12 for J3E USB and Fig 3 3 13 to 3 3 22 for F1B J2B Occupied bandwidth is a bandwidth in which 99 of the mean power radiated falls EUT SSB RADIOTELEPHONE Watt Meter Model DJ522 OH 2 S N 46507 Tokyo Denpa DC Power Supply Model GP035 50R S N 13086029 Takasago...

Page 16: ...Pub No SB 2241 Date November 1 2002 Page 15 of 66 Fig 3 3 2 Fc 1 6 MHz J3E Fig 3 3 3 Fc 2 MHz J3E ...

Page 17: ...Pub No SB 2241 Date November 1 2002 Page 16 of 66 Fig 3 3 4 Fc 3 MHz J3E Fig 3 3 5 Fc 4 MHz J3E ...

Page 18: ...Pub No SB 2241 Date November 1 2002 Page 17 of 66 Fig 3 3 6 Fc 6 MHz J3E Fig 3 3 7 Fc 8 MHz J3E ...

Page 19: ...Pub No SB 2241 Date November 1 2002 Page 18 of 66 Fig 3 3 8 Fc 12 MHz J3E Fig 3 3 9 Fc 16 MHz J3E ...

Page 20: ...Pub No SB 2241 Date November 1 2002 Page 19 of 66 Fig 3 3 10 Fc 18 MHz J3E Fig 3 3 11 Fc 22 MHz J3E ...

Page 21: ...Pub No SB 2241 Date November 1 2002 Page 20 of 66 Fig 3 3 12 Fc 25 MHz J3E ...

Page 22: ...Pub No SB 2241 Date November 1 2002 Page 21 of 66 Fig 3 3 13 Fc 1 6 MHz F1B J2B Fig 3 3 14 Fc 2 MHz F1B J2B ...

Page 23: ...Pub No SB 2241 Date November 1 2002 Page 22 of 66 Fig 3 3 15 Fc 4 MHz F1B J2B Fig 3 3 16 Fc 6 MHz F1B J2B ...

Page 24: ...Pub No SB 2241 Date November 1 2002 Page 23 of 66 Fig 3 3 17 Fc 8 MHz F1B J2B Fig 3 3 18 Fc 12 MHz F1B J2B ...

Page 25: ...Pub No SB 2241 Date November 1 2002 Page 24 of 66 Fig 3 3 19 Fc 16 MHz F1B J2B Fig 3 3 20 Fc 18 MHz F1B J2B ...

Page 26: ...Pub No SB 2241 Date November 1 2002 Page 25 of 66 Fig 3 3 21 Fc 22 MHz F1B J2B Fig 3 3 22 Fc 25 MHz F1B J2B ...

Page 27: ...W Spectrum over the frequency range 10 kHz of each test frequency is observed Fig 3 4 1 3 4 2 Test Result See Fig 3 3 2 to 3 3 22 in Clause 3 3 of this report for details EUT SSB RADIOTELEPHONE Watt Meter Model DJ522 OH 2 S N 46507 Tokyo Denpa DC Power Supply Model GP035 50R S N 13086029 Takasago Audio Volt Meter Model 161 S N 2961776 Kikusui 43 dB Coupler Spectrum Analyzer Model TR4173 S N 855800...

Page 28: ...g PEP output of 250 W Fig 3 5 1 3 5 2 Test Result See Fig 3 5 2 to 3 5 24 for the Spectrum on each test frequency On test frequencies spectrum is observed with 2 sweep rates EUT SSB RADIOTELEPHONE Watt Meter Model DJ522 OH 2 S N 46507 Tokyo Denpa DC Power Supply Model GP035 50R S N 13086029 Takasago Audio Volt Meter Model 161 S N 2961776 Kikusui 43 dB Coupler Spectrum Analyzer Model TR4173 S N 855...

Page 29: ...Pub No SB 2241 Date November 1 2002 Page 28 of 66 Fig 3 5 2 Fc 1605 kHz J3E Fig 3 5 3 Fc 1605 kHz J3E ...

Page 30: ...Pub No SB 2241 Date November 1 2002 Page 29 of 66 Fig 3 5 4 Fc 2182 kHz J3E Fig 3 5 5 Fc 2182 kHz J3E ...

Page 31: ...Pub No SB 2241 Date November 1 2002 Page 30 of 66 Fig 3 5 6 Fc 3000 kHz J3E Fig 3 5 7 Fc 3000 kHz J3E ...

Page 32: ...Pub No SB 2241 Date November 1 2002 Page 31 of 66 Fig 3 5 8 Fc 4065 kHz J3E Fig 3 5 9 Fc 4065 kHz J3E ...

Page 33: ...Pub No SB 2241 Date November 1 2002 Page 32 of 66 Fig 3 5 10 Fc 6200 kHz J3E Fig 3 5 11 Fc 6200 kHz J3E ...

Page 34: ...Pub No SB 2241 Date November 1 2002 Page 33 of 66 Fig 3 5 12 Fc 8195 kHz J3E Fig 3 5 13 Fc 8195 kHz J3E ...

Page 35: ...Pub No SB 2241 Date November 1 2002 Page 34 of 66 Fig 3 5 14 Fc 12330 kHz J3E Fig 3 5 15 Fc 12330 kHz J3E ...

Page 36: ...Pub No SB 2241 Date November 1 2002 Page 35 of 66 Fig 3 5 16 Fc 16360 kHz J3E Fig 3 5 17 Fc 16360 kHz J3E ...

Page 37: ...Pub No SB 2241 Date November 1 2002 Page 36 of 66 Fig 3 5 18 Fc 18780 kHz J3E Fig 3 5 19 Fc 18780 kHz J3E ...

Page 38: ...Pub No SB 2241 Date November 1 2002 Page 37 of 66 Fig 3 5 20 Fc 18780 kHz J3E Fig 3 5 21 Fc 22000 kHz J3E ...

Page 39: ...Pub No SB 2241 Date November 1 2002 Page 38 of 66 Fig 3 5 22 Fc 22000 kHz J3E Fig 3 5 23 Fc 25700 kHz J3E ...

Page 40: ...Pub No SB 2241 Date November 1 2002 Page 39 of 66 Fig 3 5 24 Fc 25700 kHz J3E ...

Page 41: ...d P Pt 4R 2 W m 2 Power density expressed in field strength E V m is at any point P E 2 120 where 120 is a resistance value of free space Therefore E 120 P 1 2 120 Pt 4R 2 1 2 30 Pt 1 2 R Field strength due to PEP 250 W at a distance 10 m is E 30 x 250 10 8 7 V m Put 1 µV m 0 dBµ 8 7 V m 138 8 dBµ reference level With this reference level field strength of spurious emitted from the FS 2570 is meas...

Page 42: ...TELEPHONE Watt Meter Model DJ522 OH 2 S N 46507 Tokyo Denpa DC Power Supply Model GP035 50R S N 13086029 Takasago Spectrum Analyzer Model TR4173 S N 85580030 Takeda Riken Audio Signal Gen Model AG 253 S N 1100026 Kenwood Audio Signal Gen Model AG 253 S N 7090003 Kenwood For 10 kHz to 40 MHz Broad Band Rod Ant Model 95010 1 S N 496 AILTECH For 20 to 220 MHz Biconical Ant Model BIA 25 S N 2650 ELECT...

Page 43: ...3 Fc 4 Fc 5 Fc 6 Fc 7 Fc None detected to 120 dB 8 Fc 9 Fc 10 Fc 456 5 kHz 3rd IF 913 0 kHz 2 3rd IF 72 0 MHz 2nd LO 72 4565 MHz 2nd IF 72 4565 Fc MHz 1st LO Table 3 6 2 Fc 2182 0 kHz Spurious Frequency Cabinet Radiation below Reference Level 2 Fc 3 Fc 4 Fc 5 Fc 6 Fc 7 Fc None detected to 120 dB 8 Fc 9 Fc 10 Fc 456 5 kHz 3rd IF 913 0 kHz 2 3rd IF 72 0 MHz 2nd LO 72 4565 MHz 2nd IF 72 4565 Fc MHz 1...

Page 44: ...tected to 120 dB 8 Fc 9 Fc 10 Fc 456 5 kHz 3rd IF 913 0 kHz 2 3rd IF 72 0 MHz 2nd LO 72 4565 MHz 2nd IF 72 4565 Fc MHz 1st LO Table 3 6 4 Fc 4065 0 kHz Spurious Frequency Cabinet Radiation below Reference Level 2 Fc 3 Fc 4 Fc 5 Fc 6 Fc 7 Fc None detected to 120 dB 8 Fc 9 Fc 10 Fc 456 5 kHz 3rd IF 913 0 kHz 2 3rd IF 72 0 MHz 2nd LO 72 4565 MHz 2nd IF 72 4565 Fc MHz 1st LO ...

Page 45: ...able 3 6 6 Fc 12230 0 kHz Spurious Frequency Cabinet Radiation below Reference Level 2 Fc 3 Fc 4 Fc 5 Fc 6 Fc 7 Fc 8 Fc 9 Fc and 10 Fc 456 5 kHz 3rd IF None detected to 120 dB 913 0 kHz 2 3rd IF 72 0 MHz 2nd LO 72 4565 MHz 2nd IF 72 4565 Fc MHz 1st LO Table 3 6 7 Fc 16360 0 kHz Spurious Frequency Cabinet Radiation below Reference Level 2 Fc 3 Fc 4 Fc 5 Fc 6 Fc 7 Fc 8 Fc 9 Fc and 10 Fc 456 5 kHz 3r...

Page 46: ...able 3 6 9 Fc 22000 0 kHz Spurious Frequency Cabinet Radiation below Reference Level 2 Fc 3 Fc 4 Fc 5 Fc 6 Fc 7 Fc 8 Fc 9 Fc and 10 Fc 456 5 kHz 3rd IF None detected to 120 dB 913 0 kHz 2 3rd IF 72 0 MHz 2nd LO 72 4565 MHz 2nd IF 72 4565 Fc MHz 1st LO Table 3 6 10 Fc 25070 0 kHz Spurious Frequency Cabinet Radiation below Reference Level 2 Fc 3 Fc 4 Fc 5 Fc 6 Fc 7 Fc 8 Fc 9 Fc and 10 Fc 456 5 kHz 3...

Page 47: ...nts are made within the temperature range 30 C to 50 C at 10 C interval by applying 85 20 4 V 100 24 V and 115 27 6V of the rated DC power supply voltage Frequency stability measurements are also performed in cold start conditions no warm up period For the purpose of these measurements change in the reference oscillator frequency is plotted in the function of the lapse of time up to 60 minutes The...

Page 48: ...Pub No SB 2241 Date November 1 2002 Page 47 of 66 Fig 3 7 2 Temperature vs Frequency error for Power supply voltage 20 4 VDC ...

Page 49: ...Pub No SB 2241 Date November 1 2002 Page 48 of 66 Fig 3 7 3 Temperature vs Frequency error for Power supply voltage 24 0 VDC ...

Page 50: ...Pub No SB 2241 Date November 1 2002 Page 49 of 66 Fig 3 7 4 Temperature vs Frequency error for Power supply voltage 27 6 VDC ...

Page 51: ...Pub No SB 2241 Date November 1 2002 Page 50 of 66 Fig 3 7 5 Lapse of time vs Frequency error at 30 C ...

Page 52: ...Pub No SB 2241 Date November 1 2002 Page 51 of 66 Fig 3 7 6 Lapse of time vs Frequency error at 20 C ...

Page 53: ...Pub No SB 2241 Date November 1 2002 Page 52 of 66 Fig 3 7 7 Lapse of time vs Frequency error at 0 C ...

Page 54: ...Pub No SB 2241 Date November 1 2002 Page 53 of 66 Fig 3 7 8 Lapse of time vs Frequency error at 30 C ...

Page 55: ...imit at 1 nm 9 kHz 30 MHz Less than Instrument s noise level Less than 16 dBµ 6 µV m Less than 0 01 µV m 0 1 µV m 30 100 MHz Less than Instrument s noise level Less than 35 dBµ 56 µV m Less than 0 09 µV m 0 3 µV m 100 300 MHz Less than Instrument s noise level Less than 35 dBµ 56 µV m Less than 0 09 µV m 1 0 µV m 3 8 2 2 Spurious emission at receiver antenna terminal FCC Rule Part 2 1051 The resul...

Page 56: ...ITU 401 and select SSB as class of emission b Apply two tones simultaneously at frequencies of 400 Hz and 1800 Hz with equal amplitudes to MIC input of FS 2570 at a level of 36 dBm d Key the transmitter and adjust R76 ALC on B07 05P0736 TX FIL Board to obtain 250 Wpep 50 Ω 250 W Watt Meter Audio Signal Gen 400 Hz PAD EUT SSB RADIOTELEPHONE 36 dBm MIC Audio Signal Gen 1800 Hz ...

Page 57: ...Pub No SB 2241 Date November 1 2002 Page 56 of 66 5 PHOTOGRAPHS TO REVEAL EQUIPMENT CONSTRUCTION AND LAYOUT FCC Rule Part 2 1033 See separate cover ...

Page 58: ...V REGULATOR U0006 IC NJM2403D P D CHECK U0008 MOS MPU 05S0522 0 CPU U0009 IC M54563P RELAY DRIVE U0010 IC M54563P RELAY DRIVE U0011 IC M54563P RELAY DRIVE DUMMY Board 05P0610 None 2 Transceiver unit FS 2570T T CPU Board 05P0732 Symbol Component Type Function Q0001 0002 TR DTC114EKAT146 RCV BZ CONT Q0003 0004 TR DTC114EKAT146 DMC CONT U0001 IC M51957BFP C61J CPU RESET CONT U0002 Ceramic Oscillator ...

Page 59: ...S LGC TC4066BFN EL LINE SELECT U0038 IC M54972FP 30ND LINE SELECT CONT U0039 DC DC Converter SI 8301L 5 V AVR U0040 IC µPC1093T E1 REF VOLT U0041 IC TLP181 GB TPL DMC CONT U0042 MOS LTC1484CS8 RCV BZ CONT U0043 IC TA77808F TE16L 8 V AVR DSP For DSC NBDP Board 05P0751 Symbol Component Type Function U0001 IC AD1819BJST CODEC U0002 MOS DSP ADSP 2181KST 115 DSP U0003 MOS FLA MBM29F400BC 90PFTN MEMORY ...

Page 60: ...CONT Q0035 FET 2SK210 GR TE 85L RX 1ST IF AMP Q0037 TR 2SC3123 TX IF AMP Q0038 TR 2CS2712 Y TE85L RX 2ND IF AMP Q0039 TR DTC114EKAT146 T R CONT U0001 0002 MOS LGC TC74HC595AF SIFT REGISTER U0003 MOS LGC TC74HC595AF ALC POWER CONT U0004 MOS LGC TC74HC595AF RX PF GAIN CONT U0005 0006 IC M54972FP 30NA PRE SELECTOR CONT U0007 IC M54972FP 30NA TX RX MODE CONT U0008 IC M54972FP 30NA AGC CONT U0009 MOS L...

Page 61: ...SELECT U0045 MOS AD9832BRU DDS U0046 IC µPC1675G T1 REF OSC BUFF AMP U0047 MOS LGC TC74HC02AF EL PRESEL Board 05P0746 NONE REF OSC Board 05P0747 Symbol Component Type Function U0001 IC NJM2904M T1 OVEN CONT U0002 IC µPC1675G T1 REF OSC BUFF AMP Y0001 XTAL Oscillator NTO 801BS 18 MHZ REF OSC W R Board 05P0734 Symbol Component Type Function CR0004 DIODE DSM10C TR RECT CR0005 DIODE DSM10C TR RECT CR0...

Page 62: ...TEST SIG SW CONT T IF Board 05P0731 Symbol Component Type Function Q0001 TR DTC114EKAT146 ANT COUP CONT Q0002 TR DTC114EKAT146 MUTE SW CONT Q0004 TR 2SD1409A BK CONT Q0005 TR DTC114EKAT146 LINE SELECT Q0006 0007 TR DTC114EKAT146 TX KEY CONT U0001 IC TA7805F TE16L 5 V AVR U0002 0003 MOS LGC TC74HC595AF SIFT REGISTER U0004 IC M54972FP 30NA LINE CONT U0005 IC M54972FP 30NA ANT COUP CONT U0006 MOS LGC...

Page 63: ...NT Q0007 TR 2SC1815 Y TPE2 Ic CHECK SIG AMP Q0008 0009 TR 2SC1815 Y TPE2 Vc CHECK SIG AMP U0001 IC NJM2904D BIAS CONT U0002 IC PC817X1 BIAS CONT U0003 IC TLP531BL Ic CHECK CONT U0004 IC TLP531BL Vc CHECK CONT COMB Board 05P0740 NONE TX FIL Board 05P0736 Symbol Component Type Function Q0002 TR DTA114EKAT146 POWER AMP BIAS CONT Q0001 TR DTA114EKAT146 DRIVER AMP BIAS CONT Q0003 0004 FET PMBFJ310 RCVE...

Page 64: ...TC114EKAT146 HI VOLT PROTECT Q0007 TR DTC114EKAT146 RELAY DRIVE 3 Control Unit FS 2570C C IF Board 05P0730 Symbol Component Type Function CR0005 DIODE RM4Z 015 304 Protection from reverse connection Q0001 TR 2SA1385 Z POWER ON OFF CONT Q0002 TR 2SC1622 L POWER ON OFF CONT Q0003 FET 2SJ144 GR TE85L MUTE SW Q0004 TR DTC114EKAT146 SQ SIG DRIVER Q0005 0006 TR DTC114EKAT146 LINE SW CONT U0001 IC M5218A...

Page 65: ...VER U0010 MOS MPU M38881M2 153GP CPU U0011 Ceramic Oscillator CSTCS12 5MTA TC CLOCK OSC U0012 IC SN75LBC179DR RS422 DRIVER U0013 MOS LT1080CSW RS232 DRIVER U0014 0015 MOS LGC TC74HC541AF EF PRINTER DRIVER U0016 DC DC Converter SI 8301L 5 V AVR PANEL Board 05P0728 Symbol Component Type Function CR0025 Diode PY1101W KEY Illumination Q0001 TR 2SA1312 BL Power Sw Driver U0001 LCD TZ6582302A LCD UNIT U...

Page 66: ...1 Date November 1 2002 Page 65 of 66 6 2 Description of the circuits employed for suppression of spurious radiation for limiting or shaping the control pulse and for limiting or controlling power See separate cover ...

Page 67: ...Pub No SB 2241 Date November 1 2002 Page 66 of 66 7 Operator s Manual incl Circuit Diagrams FCC Rule Part 2 1033 See separate cover ...

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