Nikko FAM-450 Service Manual Download | Manualshive

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Summary of Contents for FAM-450

Page 1: ...www hifiengine com...

Page 2: ...INTED CIRCUIT BOARD ftE 8 9 10 TUNER PCBASSY 9 BLOCK DIAGRAM IO OVERALL DIAGRAM I I PARTIAL CHANGES MADE ACCORDINGDESTINATION 12 PARTS LIST t3 t5 SEM ICONDUCTOR SPECI FICATION TRANSISTOR COMPLEMENT 16...

Page 3: ...itivity Selectivity lmage Rejection lF Rejection Distortion Signal to Noise Ratio Output Voltage IHF s N 50dB lHF 98MHz 98MHz lHF MONO STEREO 1KHz SOpSec 10KHz tHF lHF 110KHz 1000KH2 1000KH2 2dB NOMIN...

Page 4: ...ng knob 6 Hi blend switch 7 FM muting switch 8 Selector switch REAR PANEL IJ 1 2t 3 4 5 Coaxial cahle holder GND 7 5 ohm FM antenna terminal 300 ohm FM antenna terminal Ground terminal AM antenna term...

Page 5: ...h Signal Tuning meter Fly wheel Tuner PCB ass y board AM bar antenna cJ PARTIAL DISASSEMBLY CABINET REMOVAL PHoro l PHOTO_2 Stand the cabinet up and remove screws 1 4 as shown in Photo 1 Return the ca...

Page 6: ...he circuit board up to remove it SWITCH PCB ASSY REMOVAL Remove screws 1 2 forward to remove it PHOTO 8 as shown in Photo 8 and pull PHOTO_5 POWER TRANSFORMER REMOVAL PHOTO 7 Remove screws 1 2 as show...

Page 7: ...PHOTO 10 Remove screws 1 21 as shown in Photo 10 and pull forward to remove it DIAL MECHANISM METER REMOVAL PHOTO 1 1 Remove screws 1 4 as shown Photo 11 and pull forward to remove it It vJ 5 I L r U...

Page 8: ...MHz L104 Oscillator coil core Adjust for max reading 2 108 MHz c111 Oscillator Trimmer Adjust for max reading 3 88 MHz L101 ANT coil core RF coil core 4 108 MHz FM1 Adjust for max reading 5 88 MHz L10...

Page 9: ...upper core of r2o1 for minimum distortion 4 Repeat the above steps 1 through 3 two or three times so that the distortion factor is most improved Note For adjusting point refer to Fig 2 FM SEPARATION...

Page 10: ...for maximum reading 3 600 KHz AM BAR ANT Antenna coil adjust for maximum reading 4 1400 KHz AMl Antenna trimmer adjust for maximum readinq 5 Repeat steps 1 4 to obtain best tracking 2 AM IF STA GE ADJ...

Page 11: ...BLOCK DIAGRAM MODEL FAM 4sO EXT AM ANT FRONT END CERAMIC FILTER cF101 CF103 EXT AM ANT AM TUNER SELECTOF SWITCH AM BAR ANT AC LINE POWER TRANSFORMER to www hifiengine com...

Page 12: ...f Dtsc colL 0 a n i SIG TUNING METER OUT PUT POWER SUPPLY l L I LT STAB I I t i i i 1 t i FM IF AMP 1 B HI BLEND SW www hifiengine com...

Page 13: ...2t H irbi 68 R4O1 22K r __T__ lcBN 4K cl AM AilT coII LI c30a o1 l 4 t d o POWER SW wHr BLX WHT YEL WL 3ilfl ffiilb r lllo FilE t cl oo47 DC5KV q G ac 120v l L t L r YEt PT r r 253 fd 6A CANADA ac 220...

Page 14: ...c423 BF3O2 t3axHz o 2 DE EMPHASIS t5 o oorzlft 50 680P L l YEI PT T 1 253 td SA CANADA oP l o c oi G Ft ot ol 8nt fl aF3or c41 6 OO1 38KHz F415 tsoK a R4OA 6 ar 33x I ncrc lnlto 1rK c11o1ou 16 I L lr...

Page 15: ...Range Tstg c Signal to Noise Ratio I nput 74dBp Mod 30 dB Distortion lnput 74d8 Mod 30 t Detector Output I nput 74dBp Mod 30 mV AGC FOM I nput loodBrr odB Consumption Vcc 1 2V lmA Manulacture HAl 197...

Page 16: ...m fl6rino Ta 25C Elocrrical Ch acrsisaica Typicrl v l Ta 25c Oi3sipaion Otsrating c Stor gt T3tg rc Limntino t Signri ro d8 da HAI l37W FM IF OuaJhrur D l clor l4 550 t9 20 80 55 I 25 32 l5 3dB oohtl...

Page 17: ...ics Tvpical Value TA 25oC Manufacture Supply v Power Dissipation Pd mwl Lamp Driver l1 mA Operating Temp Range Topt c Storage Temp Range Tstg c lnput lmpedance Zin KC Stereo Separation dB Channel Bala...

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