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Sony SRF-M55, Руководство по обслуживанию

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Ver 1.0  1999.09

MICROFILM

SRF-M55

SERVICE MANUAL

FM STEREO PLL SYNTHESIZED RADIO

SPECIFICATIONS

AEP Model

E Model

Chinese Model

Содержание SRF-M55

Страница 1: ...Ver 1 0 1999 09 MICROFILM SRF M55 SERVICE MANUAL FM STEREO PLL SYNTHESIZED RADIO SPECIFICATIONS AEP Model E Model Chinese Model ...

Страница 2: ...IEW 17 6 ELECTRICAL PARTS LIST 18 Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C during repairing Do not touch the soldering iron on the same conductor of the circuit board within 3 times Be careful not to apply force on the conductor when soldering or unsoldering Notes on chip component replacement Never reuse a disconnected chip component Notice that the...

Страница 3: ... The equipment can be removed using the following procedure Cabinet ASSY Front Cabinet ASSY Rear Set Main board Microcomputer board LCD201 1 Screws B1 7x8 2 Claws 2 Claws 3 4 Flexible board 10 core 5 LCD flexible board 13 core Cabinet ASSY rear Cabinet ASSY front 2 Claw 3 Claw 4 1 2 Main board Cabinet ASSY front Button power Lid battery case 3 Claw ...

Страница 4: ... 4 2 3 LCD201 2 4 MICROCOMPUTER BOARD 1 Claws 2 Cabinet ASSY front LCD201 1 Screws 1 4 3 5 Cabinet ASSY rear 4 Claw 4 Claws 2 Claws Microcomputer board Cover side ...

Страница 5: ...DJUSTMENT Adjust for a maximum reading on level meter CT1 98MHz FM RF signal generator 22 5kHz frequency deviation by 400Hz signal Output level as low as possible TP ANT 0 01µF set 16 Ω headphones jack EP1 i level meter FM RF signal generator Carrier frequency 98MHz Modulation 1kHz 22 5kHz deviation Output level 1mV more than 60dB TP ANT 0 01µF 1 676 002 C C101 C102 R106 R105 R109 R119 R120 R111 R...

Страница 6: ...d off 9 POA2 O Power ON OFF output H ON 10 POA3 O Mute signal output H Mute ON 11 CE I Voltage decrease information input E Lighting 12 XOUT O System clock output 75 kHz 13 XIN I System clock input 75 kHz 14 VDD Power supply 15 GND Ground 16 EO O PLL error output 17 VREG O Voltage regulator output 18 VCOH I FM VCO input 19 VCOL Not used OPEN 20 28 LCD 0 8 O LCD segment output 29 32 COM 0 3 O LCD c...

Страница 7: ... 7 9 8 SRF M55 Signal path F FM 4 2 BLOCK DIAGRAMS ...

Страница 8: ... C110 C107 C116 C112 BCE Q102 CF1 CF3 BPF101 CF2 D101 D102 B E C BCE Q104 Q101 Q105 ECB TP ANT TP 19kHz TP LPF S202 1 2 BATT2 LITHIUM BATTERY BCE 10 12 11 SRF M55 4 3 PRINTED WIRING BOARDS Note on Printed Wiring Boards Note X parts extracted from the component side r Through hole b Pattern from the side which enables seeing The other layers patterns are not indicated Caution Pattern face side Part...

Страница 9: ...C TIME DIV 0 1 µsec T301 IC301 qs XOUT IC302 5 VOLT DIV 1 V AC TIME DIV 0 2 µsec VOLT DIV 0 1 V AC TIME DIV 5 µsec VOLT DIV 0 5 V AC TIME DIV 5 µsec 4 6Vp p 360 nsec 5 2Vp p 982 nsec 330mVp p 75kHz 2 9 Vp p 21 µsec r Refer to page 10 for Notes r Refer to page 16 for IC Block Diagrams ...

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Страница 13: ... 216 833 91 RES CHIP 10K 5 1 16W R124 1 216 815 11 METAL CHIP 330 5 1 16W VARIABLE RESISTOR RV1 1 223 276 11 RES ADJ CERMET 22K STEREO 19kHz RV2 1 227 140 11 RES VAR VOL w SWITCH S1 1 571 275 11 SWITCH SLIDE FM SENS S2 1 571 506 41 SWITCH SLIDE GROOVE MEGA BASS OFF TRANSFORMER T1 1 416 020 11 TRANSFORMER IF TV IFT FM IF A 3683 122 A MICROCOMPUTER BOARD COMPLETE BATTERY BATT2 1 528 412 11 BATTERY P...

Страница 14: ...829 11 METAL CHIP 4 7K 5 1 16W R313 1 216 829 11 METAL CHIP 4 7K 5 1 16W R316 1 216 857 11 METAL CHIP 1M 5 1 16W R317 1 216 857 11 METAL CHIP 1M 5 1 16W R318 1 216 845 11 METAL CHIP 100K 5 1 16W R319 1 216 821 11 METAL CHIP 1K 5 1 16W R320 1 216 821 11 METAL CHIP 1K 5 1 16W R321 1 216 821 11 METAL CHIP 1K 5 1 16W R330 1 216 853 11 METAL CHIP 470K 5 1 16W R331 1 216 853 11 METAL CHIP 470K 5 1 16W R...

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