Advertisement
SERVICE MANUAL
Ver 1.0 1998.07
MDR-RF830 is the component model block one in the MDR-RF830RK.
COMPONENT MODEL NAME FOR MDR-RF830RK
Wireless Stereo Headphones
Transmitter
MICROFILM
MDR-RF830
MDR-RF830
TMR-RF830R
SPECIFICATIONS
DC 3 V: 2 × R6 (size AA) battery
Power source
Mass
Approx. 215 g (7.6 oz.) incl.
Ni-Cd batteries
Design and specifications are subject to change
without notice.
or 2 × supplied
NC-AA-HJ Ni-Cd
rechargeable battery
WIRELESS STEREO HEADPHONES
UK Model
Advertisement
Table of Contents
Related Manuals for Sony MDR-RF830
Summary of Contents for Sony MDR-RF830
- Page 1 MDR-RF830 SERVICE MANUAL UK Model Ver 1.0 1998.07 MDR-RF830 is the component model block one in the MDR-RF830RK. COMPONENT MODEL NAME FOR MDR-RF830RK Wireless Stereo Headphones MDR-RF830 Transmitter TMR-RF830R SPECIFICATIONS DC 3 V: 2 × R6 (size AA) battery Power source or 2 ×...
-
Page 2: Section 1 Disassembly
SECTION 1 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. 1-1. RX BOARD, FE BOARD (R-CH) 3 Cover (R), hanger 7 FE board 8 Remove solder 1 Screws (+P2 × 12) 9 Screw (M1.7 × 4) 6 Remove solder 0 Spacer 4 RX board... - Page 3 1-3. CASE, BATTERY, MDD01 (L-CH) 2 Cover, battery 6 Case, battery 5 Screws (+P2 × 12) 3 Screws (+P2 × 8) 0 Housing (L) assy 4 Cover (L), hanger 7 Remove solder !¡ Screw (M1.7 × 4) 8 Screw (+P2 × 8) 1 Pad, ear 9 Holder, ball shaft !™...
-
Page 4: Section 2 Electrical Adjustments
4. Connect an digital voltmeter (AC range) and oscilloscope to Headphones Transmitter the L-CH speaker outputs (both sides of MDD01). MDR-RF830 TMR-RF830R 5. Receive signals by turning the TUNING VOL (RV302). Procedure: 6. Adjust the VOL (RV301) so that the RX board L-CH speaker outputs (both sides of MDD01) are 155mVrms. - Page 5 Connection points : Digital voltmeter (AC range) [ RX BOARD ] (Conductor side) Oscilloscope Digital voltmeter (DC range) Oscilloscope Adjustment Location : [RX BOARD] (Component side) RV302 Tuning Knob RV301 VOL Knob RV303 : Separation Adjustmen L301 : Receive Frequency Adjustment —...
-
Page 6: Section 3 Diagrams
SECTION 3 DIAGRAMS • IC BLOCK DIAGRAMS IC301 CXA1611N-T4 FM•IF TUNING RIPPLE REGULATOR DISCRI METER FILTER DETUNE AM•FE AM•IF DET•AGC FM•FE IC302 LA4533M MUTE POWER 10 MT/SW P/SW SWITCH CIRCIUT AMP1 OUT1 BIAS PRE GND POWER GND AMP2 OUT2 — 6 —... - Page 7 MDR-RF830 3.2 SCHEMATIC DIAGRAM • Refer tp page 6 IC Block Diagrams. Note on Schematic Diagram: WAVEFORM • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.
-
Page 8: Section 4 Exploded View
SECTION 4 EXPLODED VIEW NOTE: • -XX, -X mean standardized parts, so they may • The mechanical parts with no reference number have some differences from the original one. in the exploded views are not supplied. • Items marked “*” are not stocked since they •... -
Page 9: Section 5 Electrical Parts List
SECTION 5 ELECTRICAL PARTS LIST NOTE: • Items marked “*” are not stocked since they When indicating parts by reference number, • Due to standardization, replacements in the are seldom required for routine service. please include the board name. parts list may be different from the parts Some delay should be anticipated when specified in the diagrams or the components ordering these items. - Page 10 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < TRANSISTOR > MISCELLANEOUS ************* Q301 8-729-230-49 TRANSISTOR 2SC2712-YG Q302 8-729-230-49 TRANSISTOR 2SC2712-YG MDD01 1-505-117-21 RECEIVER (L-CH) Q303 8-729-230-49 TRANSISTOR 2SC2712-YG MDD02 1-505-117-21 RECEIVER (R-CH) Q304 8-729-230-49 TRANSISTOR 2SC2712-YG 1-771-249-11 SWITCH, PUSH (1 KEY)(POWER) Q305 8-729-230-49 TRANSISTOR 2SC2712-YG...
- Page 11 MDR-RF830 Sony Corporation 98F1611-1 Printed in Japan ©1998.6 Personal A&V Products Company 9-924-939-11 Published by Quality Engineering Dept. — 14 — (Shibaura)
- Page 12 MDR-RF830 SERVICE MANUAL AEP Model UK Model REVISED Ver 1.2 1999. 09 MDR-RF830 is the component model block one in the MDR-RF830RK. COMPONENT MODEL NAME FOR MDR-RF830RK Wireless Stereo Headphones MDR-RF830 Transmitter TMR-RF830R SPECIFICATIONS DC 3 V: 2 × R6 (size AA) battery Power source or 2 ×...
- Page 13 SECTION 1 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. 1-1. RX BOARD, FE BOARD (R-CH) 3 Cover (R), hanger 7 FE board 8 Remove solder 1 Screws (+P2 × 12) 9 Screw (M1.7 × 4) 6 Remove solder 0 Spacer 4 RX board...
- Page 14 1-3. CASE, BATTERY, MDD01 (L-CH) 2 Cover, battery 6 Case, battery 5 Screws (+P2 × 12) 3 Screws (+P2 × 8) 0 Housing (L) assy 4 Cover (L), hanger 7 Remove solder !¡ Screw (M1.7 × 4) 8 Screw (+P2 × 8) 1 Pad, ear 9 Holder, ball shaft !™...
- Page 15 4. Connect an digital voltmeter (AC range) and oscilloscope to Headphones Transmitter the L-CH speaker outputs (both sides of MDD01). MDR-RF830 TMR-RF830R 5. Receive signals by turning the TUNING VOL (RV302). Procedure: 6. Adjust the VOL (RV301) so that the RX board L-CH speaker outputs (both sides of MDD01) are 155mVrms.
- Page 16 MDR-RF830 SECTION 3 DIAGRAMS • IC BLOCK DIAGRAMS Connection points : Digital voltmeter (AC range) IC301 CXA1611N-T4 [ RX BOARD ] (Conductor side) Oscilloscope FM•IF TUNING RIPPLE REGULATOR DISCRI METER FILTER DETUNE AM•FE AM•IF DET•AGC Digital voltmeter (DC range) FM•FE...
- Page 17 MDR-RF830 3.1 PRINTED WIRING BOARDS • Semiconductor Location Ref. No. Location D301 D302 D303 IC301 IC302 IC303 IC304 Q301 Q302 Q303 Q304 Q305 Q306 Q307 Q308 Q309 Note: • X : parts extracted from the component side. • ® : Through hole.
- Page 18 MDR-RF830 3.2 SCHEMATIC DIAGRAM • Refer tp page 6 IC Block Diagrams. Note on Schematic Diagram: WAVEFORM • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.
- Page 19 MDR-RF830 SECTION 4 SECTION 5 EXPLODED VIEW ELECTRICAL PARTS LIST NOTE: NOTE: • Items marked “*” are not stocked since they When indicating parts by reference number, • -XX, -X mean standardized parts, so they may • The mechanical parts with no reference number •...
- Page 20 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < TRANSISTOR > MISCELLANEOUS ************* Q301 8-729-230-49 TRANSISTOR 2SC2712-YG Q302 8-729-230-49 TRANSISTOR 2SC2712-YG MDD01 1-505-117-21 RECEIVER (L-CH) Q303 8-729-230-49 TRANSISTOR 2SC2712-YG MDD02 1-505-117-21 RECEIVER (R-CH) Q304 8-729-230-49 TRANSISTOR 2SC2712-YG 1-771-249-11 SWITCH, PUSH (1 KEY)(POWER) Q305 8-729-230-49 TRANSISTOR 2SC2712-YG...
- Page 21 MDR-RF830 Sony Corporation 99H1639-1 Personal Audio Company 9-924-939-13 Printed in Japan ©1999.8 — 14 — Published by General Engineering Dept.