Sony MDR-RF430 Service Manual Download | Manualshive

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Connection points :

Adjustment Location :

RV302
Tuning Knob

RV301
VOL Knob

L301 : Receive Frequency Adjustment

RV303 : Separation Adjustment

[RX BOARD] (Component side)

[ RX BOARD ] (Conductor side)

oscilloscope

digital voltmeter

(AC range)

oscilloscope

digital voltmeter

(DC range)

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Summary of Contents for MDR-RF430

Page 1: ...d batteries MDR RF430RK Approx 265g 9 4oz incl Ni Cd batteries MDR RF450RK Supplied Ni Cd rechargeable batteries Model name NC AA HJ Voltage 1 2V Capacity 600mAh Design and specifications are subject to change without notice MICROFILM MDR RF430 RF450 SERVICE MANUAL WIRELESS STEREO HEADPHONES AEP Model MDR RF430RK MDR RF450RK Wireless Headphones MDR RF430 MDR RF450 Transmitter TMR RF450R TMR RF450R...

Page 2: ...rew P 2x6 3 Screws P 2x5 Screw M 1 7x4 7 Remove solder RX shield plate Remove solder Hanger cover R Spacer Hanger R Suspender Head band 5 RX board Housing R assy MDD02 R CH SW1 Ball shaft holder Ear pad 1 4 8 6 º FE board 2 Screws P 2x10 7 Screw P 2x6 3 Screws P 2x5 Remove solder Hanger cover L Suspender Head band Battery cover Battery case Housing L assy Hanger L MDD01 L CH Ball shaft holder Ear ...

Page 3: ... 1 9 8 SW board Surpport switch MDD02 R CH RX shield plate Claw 2 Screws M 1 7x4 Ear pad 7 Screws M1 7x4 6 Screws P 2x8 Front plat R assy Screw M1 7x4 RX board FE board Head band Suspender Ear pad 2 Screws M 1 7x5 tapping 0 Screws M 1 7x4 Head band Hanger cover L Suspender 3 Remove solder MDD01 L CH 9Screws P 2x8 Front plate L assy Claw Housing L Hanger L Battery cover 5 1 6 8 7 6 4 ...

Page 4: ...thetransmitternoisefilterSWtoOFF 3 Inputasignalof1kHz316mVrmstoonl ythetransmitterL c h J403 4 Placetransmitterandheadphonesatadistanceofmorethan5m apart 5 Setthe VOL RV301 toMIN 6 PositionRXboar d TUNINGVOL RV302 tothecenter 7 Connectadigitalvoltmeter DCrange andanoscilloscopebe tweenIC301pin andGND 8 Firstchecktomakesurethatademodulatedwaveformof1kHz appr oximatel y13mVrms isoutputtedtotheoscill...

Page 5: ... Location RV302 Tuning Knob RV301 VOL Knob L301 Receive Frequency Adjustment RV303 Separation Adjustment RX BOARD Component side RX BOARD Conductor side oscilloscope digital voltmeter AC range oscilloscope digital voltmeter DC range ...

Page 6: ...ET FM IF DISCRI AM IF DET AGC DETUNE DET CONTROL VCC RIPPLE FILTER DET OUT AFC AGC AFC AGC AM IF OUT GND METER FM IF IN AM IF IN FM AM BAND SELECT DETUNE DET GND FM DISCRI AM OSC AFC FM OSC REG OUT FM RF AM RF IN NC FM RF IN GND FM AM FE OUT POWER SWITCH MUTE CIRCIUT BIAS 1 2 3 4 5 6 7 8 9 10 MT SW OUT1 POWER GND OUT2 VCC P SW IN1 PRE GND IN2 REF AMP2 AMP1 SECTION 3 DIAGRAMS ...

Page 7: ......

Page 8: ...er voltage is dc 3V and fed with regulated dc power supply from battery terminal Voltages are dc with respect to ground under no signal conditions Voltages are taken with aVOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal produc tion tolerances Circled numbers refer to...

Page 9: ... R 4 4 992 281 01 HOLDER BALL SHAFT 5 4 210 280 01 PLATE RX SHIELD 6 A 4542 510 A RX BOARD COMPLETE 7 4 994 121 01 COVER R HANGER 8 3 713 791 01 SCREW M1 7X4 TAPPING P2 9 4 995 597 01 SPACER 10 4 994 124 01 SUSPENDER 11 4 994 118 01 BAND HEAD 12 4 994 123 01 COVER BATTERY 13 X 4950 087 1 HOUSING L ASSY 14 4 995 475 01 SPRING TENSION 15 4 994 130 01 TERMINAL BATTERY 16 4 994 132 01 TERMINAL MIDWAY ...

Page 10: ...01 PANEL BACK 63 4 999 792 01 CASE 64 4 978 519 01 CUSHION HEAD 65 4 999 765 01 BAND HEAD 66 4 999 771 01 SUSPENDER 67 4 978 518 02 BASE SUSPENDER 68 4 999 768 01 COVER L HANGER 69 4 999 770 01 BATTERY COVER 70 4 210 258 01 TERMINAL MIDWAY BATTERY 71 4 210 256 01 TERMINAL BATTERY 72 4 210 257 01 TERMINAL BATTERY 73 4 999 766 01 HANGER L 74 4 999 772 01 HOUSING L 75 X 4950 100 1 PLATE L ASSY FRONT ...

Page 11: ...ERAMIC CHIP 0 1uF 10 16V C326 1 124 635 00 ELECT 220uF 20 6 3V C327 1 124 635 00 ELECT 220uF 20 6 3V C328 1 124 635 00 ELECT 220uF 20 6 3V C329 1 164 346 11 CERAMIC CHIP 1uF 16V C330 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C331 1 162 912 11 CERAMIC CHIP 7PF 0 5PF 50V C332 1 164 441 91 CERAMIC CHIP 68PF 5 50V C333 1 163 021 91 CERAMIC CHIP 0 01uF 10 50V C334 1 124 233 11 ELECT 10uF 20 16V C335 1 1...

Page 12: ...59 11 RES CHIP 1 5M 5 1 16W R324 1 216 033 00 METAL CHIP 220 5 1 10W R325 1 216 825 91 METAL CHIP 2 2K 5 1 16W R326 1 216 827 11 METAL CHIP 3 3K 5 1 16W R327 1 216 809 11 METAL CHIP 100 5 1 16W R328 1 216 835 11 METAL CHIP 15K 5 1 16W R329 1 216 001 00 METAL CHIP 10 5 1 10W R330 1 216 001 00 METAL CHIP 10 5 1 10W R331 1 216 097 91 RES CHIP 100K 5 1 10W R334 1 216 845 11 METAL CHIP 100K 5 1 16W R33...

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