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Sony MDR-RF830 Service Manual Download Page 13

— 2 —

Note: 

Follow the disassembly procedure in the numerical order given.

SECTION 1

DISASSEMBLY

— 2 —

1-1.   RX BOARD, FE BOARD (R-CH)

3

 Cover (R), hanger

7

 FE board

4

 RX board

8

 Remove solder

9

 Screw 

     (M1.7 

×

 4)

1

 Screws (+P2 

×

 12)

2

 Screws (+P2 

×

 8)

0

 Spacer

!¡

 SW1

6

 Remove

     solder

5

 Plate, RX shield 

1-2.   MDD02 (R-CH)

5

 Screw (M1.7 

×

 4)

2

 Screw (+P2 

×

 8)    

4

 Housing (R) assy

6

 MDD02 (R-CH)

1

 Pad, ear 

7

 Remove solder

3

 Holder, ball shaft 

Summary of Contents for MDR-RF830

Page 1: ...in the MDR RF830RK COMPONENT MODEL NAME FOR MDR RF830RK Power source DC 3 V 2 R6 size AA battery or 2 supplied NC AA HJ Ni Cd rechargeable battery Mass Approx 215 g 7 6 oz incl Ni Cd batteries Design and specifications are subject to change without notice Wireless Stereo Headphones MDR RF830 Transmitter TMR RF830R Ver 1 0 1998 07 ...

Page 2: ...2 1 1 RX BOARD FE BOARD R CH 3 Cover R hanger 7 FE board 4 RX board 8 Remove solder 9 Screw M1 7 4 1 Screws P2 12 2 Screws P2 8 0 Spacer SW1 6 Remove solder 5 Plate RX shield 1 2 MDD02 R CH 5 Screw M1 7 4 2 Screw P2 8 4 Housing R assy 6 MDD02 R CH 1 Pad ear 7 Remove solder 3 Holder ball shaft ...

Page 3: ...E BATTERY MDD01 L CH 5 Screws P2 12 3 Screws P2 8 8 Screw P2 8 Screw M1 7 4 0 Housing L assy 1 Pad ear MDD01 L CH Remove solder 9 Holder ball shaft 7 Remove solder 4 Cover L hanger 6 Case battery 2 Cover battery ...

Page 4: ...y turning RX board TUNING VOL RV302 Connection points and Adjustment Location RX BOARD See page 5 Separation check and adjustment 1 Set the transmitter channel to CH2 2 Set the transmitter noise filter SW to OFF 3 Input a signal of 1kHz 316mVrms to onl y the transmitter L CH J403 4 Connect an digital voltmeter AC range and oscilloscope to the L CH speaker outputs both sides of MDD01 5 Receive sign...

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

Page 6: ...TUNE 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 IC BLOCK DIAGRAMS IC302 LA4533M IC301 CXA1611N T4 ...

Page 7: ...gulated dc power supply from battery terminal Voltages are dc with respect to ground under no signal conditions Voltages are taken with a VOM Input impedance 10 MΩ Voltage variations may be noted due to normal production toler ances Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal production toler ances Circled numbers refer to waveforms Signal path F 9 10 r WA...

Page 8: ...5 4 210 280 01 PLATE RX SHIELD 6 A 4542 535 A RX BOARD COMPLETE 7 4 994 121 11 COVER R HANGER 8 3 713 791 01 SCREW M1 7X4 TAPPING P2 9 4 995 597 01 SPACER 10 4 994 124 11 SUSPENDER 11 4 994 118 01 BAND HEAD 12 4 994 123 11 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 BATTERY 17 4 993 020 01 CASE BATTERY...

Page 9: ...T 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 11 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 1 162 924 11 CERAMIC CHIP 56PF 5 50V C336 1 162 92...

Page 10: ... 216 061 00 METAL CHIP 3 3K 5 1 10W R320 1 216 845 11 METAL CHIP 100K 5 1 16W R321 1 216 843 11 METAL CHIP 68K 5 1 16W R322 1 216 843 11 METAL CHIP 68K 5 1 16W R323 1 216 859 11 RES CHIP 1 5M 5 1 16W R324 1 216 033 00 METAL CHIP 22 5 1 10W R325 1 216 825 11 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 ...

Page 11: ... 14 MDR RF830 Sony Corporation Personal A V Products Company 98F1611 1 Printed in Japan 1998 6 Published by Quality Engineering Dept Shibaura 9 924 939 11 ...

Page 12: ... in the MDR RF830RK COMPONENT MODEL NAME FOR MDR RF830RK Power source DC 3 V 2 R6 size AA battery or 2 supplied NC AA HJ Ni Cd rechargeable battery Mass Approx 215 g 7 6 oz incl Ni Cd batteries Design and specifications are subject to change without notice Wireless Stereo Headphones MDR RF830 Transmitter TMR RF830R REVISED Ver 1 2 1999 09 ...

Page 13: ...2 1 1 RX BOARD FE BOARD R CH 3 Cover R hanger 7 FE board 4 RX board 8 Remove solder 9 Screw M1 7 4 1 Screws P2 12 2 Screws P2 8 0 Spacer SW1 6 Remove solder 5 Plate RX shield 1 2 MDD02 R CH 5 Screw M1 7 4 2 Screw P2 8 4 Housing R assy 6 MDD02 R CH 1 Pad ear 7 Remove solder 3 Holder ball shaft ...

Page 14: ...E BATTERY MDD01 L CH 5 Screws P2 12 3 Screws P2 8 8 Screw P2 8 Screw M1 7 4 0 Housing L assy 1 Pad ear MDD01 L CH Remove solder 9 Holder ball shaft 7 Remove solder 4 Cover L hanger 6 Case battery 2 Cover battery ...

Page 15: ...y turning RX board TUNING VOL RV302 Connection points and Adjustment Location RX BOARD See page 5 Separation check and adjustment 1 Set the transmitter channel to CH2 2 Set the transmitter noise filter SW to OFF 3 Input a signal of 1kHz 316mVrms to onl y the transmitter L CH J403 4 Connect an digital voltmeter AC range and oscilloscope to the L CH speaker outputs both sides of MDD01 5 Receive sign...

Page 16: ...9 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12 REGULATOR AM FE FM FE RIPPLE FILTER TUNING METER DETUNE DET 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...

Page 17: ...ern face side seen from SideB the pattern face are indicated Parts face side Parts on the parts face side seen from Side A the parts face are indicated 3 1 PRINTED WIRING BOARDS Ref No Location D301 B 3 D302 E 3 D303 D 4 IC301 D 3 IC302 C 4 IC303 C 3 IC304 C 3 Q301 C 3 Q302 E 3 Q303 C 4 Q304 E 4 Q305 E 3 Q306 E 3 Q307 C 3 Q308 D 3 Q309 C 3 Semiconductor Location ...

Page 18: ...gulated dc power supply from battery terminal Voltages are dc with respect to ground under no signal conditions Voltages are taken with a VOM Input impedance 10 MΩ Voltage variations may be noted due to normal production toler ances Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal production toler ances Circled numbers refer to waveforms Signal path F 9 10 r WA...

Page 19: ...ERAMIC CHIP 47PF 5 50V C312 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C313 1 162 926 11 CERAMIC CHIP 82PF 5 50V C314 1 162 957 11 CERAMIC CHIP 220PF 5 50V C315 1 124 233 11 ELECT 10uF 20 16V C316 1 164 245 11 CERAMIC CHIP 0 015uF 10 25V C317 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C318 1 164 346 11 CERAMIC CHIP 1uF 16V C319 1 164 505 11 CERAMIC CHIP 2 2uF 16V C320 1 164 346 11 CERAMIC CHIP 1uF 16V C...

Page 20: ... 216 061 00 METAL CHIP 3 3K 5 1 10W R320 1 216 845 11 METAL CHIP 100K 5 1 16W R321 1 216 843 11 METAL CHIP 68K 5 1 16W R322 1 216 843 11 METAL CHIP 68K 5 1 16W R323 1 216 859 11 RES CHIP 1 5M 5 1 16W R324 1 216 033 00 METAL CHIP 22 5 1 10W R325 1 216 825 11 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 ...

Page 21: ... 14 MDR RF830 Sony Corporation Personal Audio Company 99H1639 1 Printed in Japan 1999 8 Published by General Engineering Dept 9 924 939 13 ...

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