Page 1: ...it 0 0 00 00 00 0 ceee eee page 4 As EM Bands scsi t ccccissed ia ian baeeoned deals ees page 5 Be AM Band 8 ste ice tiex Rateiciati sees Sota Dacia page 5 iV Counter Signal Circuit 0 0022 page 5 V Si...
Page 2: ...ding to formula 1 10 455 MHz called upper local oscillation or 9 545 MHz called lower local oscillation Thus if 10 455 MHz is used as the local oscillator signal Display frequency fo 10 455 fo 0 455 f...
Page 3: ...been subtracted from the local oscillator frequency For the LW MW bands 455 kHz is subtracted from the local oscillator frequency For the SW bands 2 MHz is subtracted from the local oscillator frequen...
Page 4: ...901 0902 Ic901 a908 1C902 1 Band Selector o FM LW MW SW1 SW2 SW3 Q E shown in MW position OSC COILS L118 L117 L1t6 0115 L114 IC902 terminals 3 4 5 and 6 For Preset Fig 4 LW MW SW Section Block Diagram...
Page 5: ...same way for the LW MW and SW bands the condition of each preset terminal is changed by the band selector S1 9 consenquently the preset frequency shown in the table in figure 5 is obtained and the cor...
Page 6: ...the 1 8 frequency divider is output from terminal 8 of C901 However because Q905 is turned on thus shorting its collector to emitter junction the base to emitter junction of Q908 is also shorted there...
Page 7: ...26 dB Power Output 3W DC Maximum National Panasonic Power Source Power Consumption Speaker Dimensions Weight Impedance ORDER NO RD7803 1549 ervice ManualRadio RF 2800LBS AC 110 125V 220 240V 50 60 Hz...
Page 8: ...board removal instruction Remove the two 2 screws nos 1 2 for the frequency counter as shown in fig 3 Remove the frequency counter To reassemble reverse the above procedure TO REMOVE PC BOARD Frequen...
Page 9: ...ssis removal instruction 2 Remove the one 1 screw for the dial scale spring as shown in fig 7 3 Remove the dial scale 4 To reassemble reverse the above procedure and note the followings Notes 1 Loosen...
Page 10: ...and Indicator PITCH To remove those control knobs wind a cord around the control and pull it outward 3 Remove the two 2 screws nos 1 4 for the PC board Remove the PC board 5 To reassemble reverse the...
Page 11: ...POWER AMP COUNTER SS ee sami 7 crysrat naQ tf 7 PUWER 7 oc SV REGULATOR oI acove cA J ACIN FM IN Dc ov Fig 15 M ALIGNMENT POINTS SW3 ANT LW ANT LW ANT MW ANT 30MHz Sts TPQ 150kHz art in 400kHz 550kHz...
Page 12: ...l Lioz LW ANT Coil CT112 LW OSC 150 kHz Output meter Refer to fig 17 across voice coil 400 kHz Trimmer output 3 LW 4 400 kHz Refer to fig 18 CTi0o1 LW ANT Repeat steps 2 Trimmer and 3 1 Adjust for max...
Page 13: ...mmer 3 4 Three output responses will be present proper tuning is the center frequency M BFO ALIGNMENT SWEEP GENERATOR RADIO DIAL INDICATOR BAND SErTG VIVM or SCOPE ADJUSTMENT REMARKS CONNECTIONS FREQU...
Page 14: ...istor and capacitor 11 Battery current No signal Anode D101 102 104 108 D201 202 203 401 402 403 404 Maximum output 0000 000000e 600 mA D103 105 106 107 302 303 Qio4 Qios Q 106 Qio7 Q ios FM FM AM FM...
Page 15: ......
Page 16: ...ra 5 1 re R157 ISO L 4 oe Sia ate o 3 S yi jo 6 Wt ce tl a 3 Dies 3 i ob 4 56V x 7 MU 3 a 9 1D 9 St Ste a Se D401 402 403 464 ag YG 4 3 i O O RVDIOEt 7 S isa N OFF ON RECT a eo if NARROW WIDE OFF _ON...
Page 17: ...ae BE J o RADIOS HON ex ch ge OGM A YPM DYNAMIC Sa SPEAKER S92 Qdal Qus Dior Jor Wir Iew2 Digg Dice Quo Qua Gio O13 G93 Digi Grog Dts Tao 10103 Dios iog_Qt09 Dao Dagp Dao3 Dans D203 Gag 1Con2 Doo2 D90...
Page 18: ...B9STOSe CLTaSe yrsase L9SaSe FOTHS SP6OSS Besose BeeVvVSe 4v0TOS2 6FUSS dA628PSWIAU T dTOTSALIAY POT ZOT TOTA 06 SO060 S06 LO0 90 Goze Zoze TO B0T 07 SO 60T LOTO 906 90TO 806406 SOT FOT SOTO 206 TO6...
Page 19: ...arbon 154 R107 103 104 ERD25TJ102 1KQ Watt 5 Carbon 111 140 240 14 R131 148 ERD25TJ152 1 5KQ Watt 5 Carbon R120 128 205 ERD25TJ222 2 2K Watt 5 Carbon VARIABLE RESISTORS 211 932 R149 905 ERD25TJ332 3 3...
Page 20: ...C136 910 916 C130 135 140 178 C147 167 171 181 C110 905 209 C216 911 C206 208 231 903 908 914 C912 915 918 921 923 924 C932 934 933 C935 ECKD1H223PF ECKD1H102PF ECKD1H222MD ECKD1H153MD ECKD1H223MD ECK...
Page 21: ...Side 1 RBN420Z Knob SW Cal 1 lo Order Pad Right Side 1 RBS1122 Knob Band 1 loy RPN92272 ae RBEL3Y Knob Power 1 OY RPN2567Z Pad Both Side i 2 OZ RBE13X Knob Light FM AFC 2 joy RPK590Z Gift Box 1 joz RH...
