Yaesu VR-120D Technical Supplement Download Page 15 | Manualshive

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15

CNTL•AF Unit

Circuit Diagram

USA B1 B2
R113 --- 0 ---

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Summary of Contents for VR-120D

Page 1: ...cases one side has only chip components and the other has either a mixture of both chip and lead components trimmers coils electrolyticcapacitors packagedICs etc or lead components only While we belie...

Page 2: ...12 Alignment Note...

Page 3: ...z AM 4 4 dB 0 6 V FM 10 4 dB 0 3 V WFM 1 0 dB 0 9 V 160 370 MHz AM 4 4 dB 0 6 V FM 10 4 dB 0 3 V WFM 4 4 dB 0 6 V 370 520 MHz FM 10 4 dB 0 3 V WFM0 dB 1 0 V 520 1300 MHz FM 3 0 dB 0 7 V WFM9 5 dB 3 0...

Page 4: ...DIAL KNOB W SPRING S8001938 BUTTON PLATE S8001998 GUM PACKING S8001934 RUBBER CONTACT S8001000 SPEAKER S8001958 LCD TAPE S8001955 TAPE S8002002 CONTACT C S8002004 CUSHION S8101164 USA S8101165 B1 S81...

Page 5: ...Exploded View Miscellaneous Parts 4 Note...

Page 6: ...ifying the 2nd IF in Q220 2SC4915 and It detects and it gets a speech signal by IF IC of Q221 TA31136FN 3rd IF is 450kHz The AM detection is Q231 UMX2N it amplifies 3rd IF signal and Q232 RB520S 30 de...

Page 7: ...6 Circuit Description Note...

Page 8: ...owners Under no circumstances should any alignment be attempted unless the normal function and operation of the transceiver are clearly understood the cause of the malfunction has been clearly pinpoi...

Page 9: ...or to the SP jack and connect the RF Signal generator SSG to ANT jack r Set the receiver to 100 020 MHz NFM mode r Tune the SSG to 100 200 MHz with 3 5 kHz deviation 1 kHz tone modulation and set the...

Page 10: ...9 Alignment C305 PLL Reference Frequency Adjust TP3 VCO VCV DCvoltmeter TP1 PLL Reference Frequency Adjust FrequencyCounter L229 FM Discriminator Adjust TP2 RF Voltege DCvoltmeter Alignment Points...

Page 11: ...ss the BND p key while press and holding FUNC key SQL SL will appear on the display r Press the V M key while press and holding FUNC key Sounds a beep r Increase the SSG output level to 15 dB r Press...

Page 12: ...the V M key while press and holding FUNC key Sounds a beep r Reduce the SSG output level to 5 dB r Press the SCAN key while press and holding FUNC key S M ET2 will appear on the display r Press the V...

Page 13: ...13 Block Diagram...

Page 14: ...14 Block Diagram Note...

Page 15: ...15 CNTL AF Unit Circuit Diagram USA B1 B2 R113 0...

Page 16: ...16 CNTL AF Unit Note...

Page 17: ...2 3 4 Parts Layout RN5VL20A B0 Q112 UMG2N G2 Q113 DTA144EE 16 Q114 DTC144EE 26 Q131 142 XC6371A351PR A35 Q116 TA31056F Q123 2SA1588Y ZY Q124 125 128 UMW1 W1 Q126 127 UMX2N X2 Q130 1SS382 A1 Q129 XC62...

Page 18: ...18 CNTL AF Unit Side B e d c b a 1 2 3 4 HD6433837SD Q101 1SS382 A1 Q102 103 104 2SC4617 BR Q107 110 RB706F 40T106 3J Q120 121 AT24C64N 10SI1 8SL722A Q115 2SD1615 GK Q136...

Page 19: ...TA CAP 100uF 6 3V UZS0J101MCR1GB K48080009 1 C131 CHIP CAP 100pF 50V CH GRM39CH101J50PT K22174235 1 C132 CHIP TA CAP 2 2uF 50V UWX1H2R2MCR1GB K48170010 1 C133 CHIP TA CAP 4 7uF 25V UWX1E4R7MCR1GB K481...

Page 20: ...J24185102 1 R113 CHIP RES 0 1 16W RMC1 16 000JATP J24185000 B1 1 R114 CHIP RES 220k 1 16W 5 RMC1 16 224JATP J24185224 1 R117 CHIP RES 330k 1 16W 5 RMC1 16 334JATP J24185334 1 R118 CHIP RES 470k 1 16W...

Page 21: ...1 16W 5 RMC1 16 220JATP J24185220 1 R160 CHIP RES 0 1 16W RMC1 16 000JATP J24185000 1 R161 CHIP RES 330 1 16W 5 RMC1 16 331JATP J24185331 1 R162 CHIP RES 0 1 16W RMC1 16 000JATP J24185000 1 R163 CHIP...

Page 22: ...22 CNTL AF Unit Note...

Page 23: ...23 RF Unit Circuit Diagram...

Page 24: ...24 RF Unit Note...

Page 25: ...25 RF Unit Side A A B C D 1 2 3 4 Parts Layout 1SS364 BF Q205 213 215 PC2757T C1Y Q218 DTA144EE 16 Q225 2SJ144Y VY Q227 2SC5010 83 Q214 2SC4915Y QY Q220 2SC4617R BR Q233 2SC5006 24 Q240 241...

Page 26: ...26 RF Unit Side B 1 2 3 4 d c b a 1SS364 BF Q208 209 222 223 DTC144EE 26 Q203 224 226 2SC5006 24 Q211 216 217 219 239 2SC4617R BR Q234 TA31136FN Q221 UMX2N X2 Q231 MB15F02PFV Q235 2SK1580 G13 Q236...

Page 27: ...P 0 1uF 16V B GRM39B104K16PT K22124805 1 C233 CHIP CAP 100pF 50V CH GRM39CH101J50PT K22174235 1 C234 CHIP CAP 6pF 50V CH GRM39CH060D50PT K22174207 1 C235 CHIP CAP 0 001uF 50V B GRM39B102K50PT K2217482...

Page 28: ...21 1 C298 CHIP CAP 27pF 50V CH GRM39CH270J50PT K22174221 1 C299 CHIP CAP 47pF 50V CH GRM39CH470J50PT K22174227 1 C300 CHIP CAP 10pF 50V CH GRM39CH100D50PT K22174211 1 C301 CHIP TA CAP 0 1uF 35V TESVA1...

Page 29: ...0922 1 L206 M RFC 0 015uH LL1608 FH15NJ L1690863 1 L207 M RFC 0 22uH LL1608 FSR22J L1691072 1 L208 M RFC 0 015uH LL1608 FH15NJ L1690863 1 L209 M RFC 0 12uH LL1608 FSR12J L1690922 1 L210 M RFC 0 039uH...

Page 30: ...1 D1 Q238 DIODE 1SS371 TPH3 G2070728 1 d4 Q239 TRANSISTOR 2SC5006 T1 G3350068 1 d4 Q240 TRANSISTOR 2SC5006 T1 G3350068 1 D4 Q241 TRANSISTOR 2SC5006 T1 G3350068 1 D3 Q242 DIODE 1SV281 TPH3 G2070620 1...

Page 31: ...0 1 R258 CHIP RES 1k 1 16W 5 RMC1 16 102JATP J24185102 1 R259 CHIP RES 220k 1 16W 5 RMC1 16 224JATP J24185224 1 R260 CHIP RES 330 1 16W 5 RMC1 16 331JATP J24185331 1 R261 CHIP RES 220 1 16W 5 RMC1 16...

Page 32: ...4 7k 1 16W 5 RMC1 16 472JATP J24185472 1 R311 CHIP RES 4 7k 1 16W 5 RMC1 16 472JATP J24185472 1 R312 CHIP RES 1k 1 16W 5 RMC1 16 102JATP J24185102 1 R313 CHIP RES 1k 1 16W 5 RMC1 16 102JATP J24185102...

Page 33: ...33 RF Unit...

Page 34: ...34 RF Unit Printed in Japan Copyright 2002 VERTEX STANDARD CO LTD All rights reserved No portion of this manual may be reproduced without the permission of VERTEX STANDARD CO LTD...

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