Sony MDR-RF920R User manual

MDR-RF920R/RF960R
USModel
Canadian Model
SERVICE MANUAL
HEADPHONES
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
9-877-525-01
2004B02-1
© 2004.02
SPECIFICATIONS
Ver 1.0 2004. 02
Photo:MDR-RF960R
MDR-RF920R is the component model block one in the MDR-RF920RK.
MDR-RF960R is the component model block one in the MDR-RF960RK.
MDR-RF920RK MDR-RF960RK
Wireless Stereo Headphones MDR-RF920R MDR-RF960R
Transmitter TMR-RF960R TMR-RF960R
COMPONENT MODEL NAME FOR MDR-RF920RK/
MDR-RF960RK
Headphones
Power source Supplied rechargeable nickelmetal
hydride batteries BPHP550 or commercially
available (size AAA) dry batteries
Mass Approx. 270 g (9.6 oz.) incl.
batteries
Design and specifications are subject to change without notice.

2
MDR-RF920R/RF960R
TABLE OF CONTENTS
Specifications ............................................................................ 1
1. GENERAL ................................................................... 2
2. DISASSEMBLY
2-1. Disassembly Flow ................................................... 3
2-2. Front Plate (R) Assy ................................................ 3
2-3. Front Plate (L) Assy ................................................ 4
2-4. SW Board ................................................................ 5
2-5. How to Hang The Tension Spring ........................... 5
3. ELECTRICAL ADJUSTMENTS .......................... 7
3-1. Free Run Frequency Check and Adjustment........... 7
3-2. Receive Frequency Check and Adjustment ............ 7
3-3. Carrier Modulation Check ...................................... 7
3-4. Separation Check .................................................... 7
3-5. Free Run Frequency Check and Adjustment........... 8
3-6. Receive Frequency Check and Adjustment ............ 8
3-7. Carrier Modulation Check ...................................... 8
3-8. Separation Check .................................................... 8
4. DIAGRAMS
4-1. Block Diagrams ............................................................... 11
4-2. Schematic Diagram – RX-Base Section (RF920R)– ...... 12
4-3. Schematic Diagram – RX-Base Section (RF960R)– ...... 13
4-4. Printed Wiring Boards– RX-Base Section– .................... 14
4-5. Schematic Diagram – RX-FE Section–........................... 15
4-6. Printed Wiring Boards– RX-FE Section– ....................... 16
5. EXPLODED VIEWS ................................................. 17
6. ELECTRICAL PARTS LIST .................................. 18
SECTION 1
GENERAL
5Turn up the volume to a moderate
level with the VOL control.
AMDR-RF960R
Press the TUNE button briefly for
automatic tuning of the headphones.
If you do not receive a clear audio
signal, press it again.
BMDR-RF920R
Tune the headphones into the frequency
of the transmitter with the TUNE
control until you can hear the audio
signal loud and clear.
Follow steps 3 and 5 above until the
receiving performance becomes better.
off when they are takenoff
–Autopower on/off function
Do not pull up the self-adjusting band when not
in use, as this will consume the battery power.
VOL control
VOL control
TUNE
TUNE
TUNE
button
TUNE
control
The headphones automatically turn
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
This section is extracted
from instruction manual.

3
MDR-RF920R/RF960R
SECTION 2
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
2-2. FRONT PLATE (R) ASSY
• This set can be disassembled in the order shown below.
2-1. DISASSEMBLY FLOW
Set
2-2. Front Plate (R) assy
(Page 3)
2-3. Front Plate (L) assy
(Page 4) 2-4. SW baord (Page 5)
1 ear pad (R)
2 three screws
(+B2.6)
3 front plate (R) sub assy
7 RX-BASE board
8 craw
q; housing cap (R)
9 craws
4 Remove solder
(2 places)
6 Remove solder
(4 places)
NAT
driver
(R-CH)
RED
to RX-BASE board
to driver (L-CH)
housing (R) sub assy
to RX BATTERY
board
5
RX-BASE board
NAT
NAT
GRN
RED

4
MDR-RF920R/RF960R
2-3. FRONT PLATE (L) ASSY
1 ear pad (L
)
3 front plate (L) sub assy
5 tow screws (DIA. 2)
8 RX BATTERY
board
4 Remove solder
(2 places)
2 three screws
(+B2.6)
driver (L-CH)
NAT
GRN
to RX-BASE board
6
7
Remove solder (4 places)
to SW board
to RX-BASE board
housing (L) sub assy
RED
RED
RED
NAT

5
MDR-RF920R/RF960R
Note for installation : Insert the end of the
suspender assy under the
S101 on the SW board.
SW board
suspender
suspender
tensin spring
hanger lid (L)
housing (L) sub assy S101
1 two screws (B2.6)
housing (L) sub assy
2 hunger (L)
4 hunger (L)
6 SW board
3 two screws (B2.6
)
5
2-4. SW BOARD
2-5. HOWTO HANGTHETENSION SPRING

6
MDR-RF920R/RF960R
a
a
b
b
wires
wires
wires
head band
housing (L)housing (R)
(L-CH)
(R-CH)
wire
groove
SET THE LEAD WIRES
Set the each lead wires as illustrated below.

7
MDR-RF920R/RF960R
Notes:
1. Use transmitter with check and adjustment alreadycompleted.
2. On adjusting the headphones section, use the transmitter as a
jig. Headphones: MDR-RF920R
Transmitter: TMR-RF960R
Procedure:
1. Connect an oscillator with attenuator and terminator (600 Ω)
to the transmitter AUDIO IN-B connector (J402).
2. Connect an AC adapter to the transmitter DC IN 9V jack
(J403).
3. Connect a DC 2.4V to the +B power line externally.
4. Connect lead wires to IC301 pin 4, pin 6, pin 7 and GND on
the RX-BASE board.
5. Connect a resistor 33k Ωbetween IC301 pin 4 and pin 7.
6. Connect lead wires to the speakers’ terminals (L+,L-,R+,R-)
on the RX-BASE board.
MDR-RF920R
3-1. Free Run Frequency Check and Adjustment
1. Setthe transmitterAUDIO IN-B connector (J402) to nosignal.
Note: In this case, operation time is about 5 or 10 minutes.
Perform confirmation for less than 5 minutes.
2. Check the transmitter power indicator (red) lights.
3. Set the transmitter CHANNEL switch to 1.
4. Set the RV303 (TUNE) to the center position.
5. Connect a frequency counter to IC301 pin 4 and GND on the
RX-BASE board, then confirm the frequency within 76kHz
±50Hz
6. Whenthe frequency dose not satisfy thespecifiedvalue, adjust
the value of the frequency counter to specification by RV301
on the RX-BASE board.
Specified values: 76kHz ±50Hz.
7. Remove a 33 kΩresister between IC301 pin 4 and pin 7.
Setting :
Frequency counter
+
–IC301 pin
4
3-2. Receive Frequency Check and Adjustment
1. Set the transmitter CHANNEL switch to 2.
2. Set the transmitter NOISE FILTER switch to OFF.
3. Input a signal of 1kHz, 316mVrms to transmitterAUDIO IN-
B(L-ch) connector only.
4. Keepdistance between transmitter and headphones to5meters
over.
5. Set the headphones volume (RV302) to minimum.
6. Set the RV303 (TUNE) to the center position.
7. Connect an oscilloscope CH1 and CH2 to IC301 pin 6 and
pin 4.
8. CheckthewaveformoftheoscilloscopetoCH1isdemodulated
1kHz signal and CH2 is GND.
9. If CH1 and CH2 are not satisfied in step 8, adjust the coil
(L301) on the RX board to satisfied step 8.
10. Set the transmitter CHANNEL switch to 1.
11. Adjust the RV303 (TUNE) to receive a signal.
Confirm the signal with stereo.
12. Check same step 8.
13. Set the transmitter CHANNEL switch to 3.
14. Adjust the RV303 (TUNE) to receive a signal.
Confirm the signal with stereo.
15. Check same step 8.
3-3. Carrier Modulation Check
1. Set the transmitter CHANNEL switch to 2.
2. Set the transmitter NOISE FILTER switch to OFF.
3. Input a signal of 1kHz, 316mVrms to transmitterAUDIO IN-
B (L-ch) connector only.
4. Set the headphones volume (RV302) to minimum.
5. Connect an oscilloscope CH1 and CH2 to IC301 pin 6 and
pin 4.
6. Adjust the tuning control (RV303) to receive radio frequency.
7. Check the waveform of the oscilloscope that the CH1 is
demodulated 1kHz signal and CH2 is GND.
8. Connect anAC voltmeter with LPF to IC301 pin 6 and GND.
9. Check the value of the AC voltmeter to 26mVrms ±2mV.
Setting :
Setting :
+
–+ –
IC301 pin6 IC301 pin4
OSCILLOSCPE
CH1 CH2
+
–
Digital voltmeter
(AC range)
LPF
IC301
pin6
33000P
2.2K
+
–+ –
IC301 pin6 IC301 pin4
OSCILLOSCPE
CH1 CH2
3-4. Separation Check
1. Set the transmitter CHANNEL switch to 2.
2. Set the transmitter NOISE FILTER switch to OFF.
3. Input a signal of 1kHz, 316mVrms to transmitterAUDIO IN-
B (L-ch) connector only.
4. Connect an oscilloscope CH1 to speakers terminal (L+,L-)
and CH2 to IC301 pin 4 and GND.
5. Adjust the tuning control (RV303) to receive radio frequency.
6. Check the waveform of the oscilloscope that the CH1 is
demodulated 1kHz signal and CH2 is GND.
7. Connect an AC voltmeter with LPF to speakers terminal
(L+,L).
8. Adjust the value of the AC voltmeter to specification by
headphones volume RV302.
Specified values: 155mVrms
9. Connect an AC voltmeter with LPF to speakersterminal
(R+,R-).
10. Measure the value of the AC voltmeter.
11. Check the difference of the L and R to more than 20dB.
12. Input a signal of 1kHz, 316mVrms to transmitterAUDIO IN-
B(R-ch) connector only.
13. Connect an AC voltmeter with LPF to speakers terminal
(R+,R-).
14. Adjust the value of the AC voltmeter to specification by
headphones volume RV302.
Specified values: 155mVrms
15. Connect an AC voltmeter with LPF to speakers terminal
(L+,L-).
16. Measure the value of the AC voltmeter.
17. Check the difference of the L and R to more than 20dB.
Setting :
+
–
Digital voltmeter
(AC range)
L+ / R+
L– / R–
+
–+ –
L+ IC301 pin
4
OSCILLOSCPE
L–
CH1 CH2
SECTION 3
ELECTRICAL ADJUSTMENTS

8
MDR-RF920R/RF960R
MDR-RF960R
Notes:
1. Use transmitter with check and adjustment alreadycompleted.
2. On adjusting the headphones section, use the transmitter as a
jig. Headphones:MDR-RF960R
Transmitter:TMR-RF960R
Procedure:
1. Connect an oscillator with attenuator and terminator (600 Ω)
to the transmitter AUDIO IN-B connector (J402).
2. Connect an AC adapter to the transmitter DC IN 9V jack
(J403).
3. Short between Q302 corrector and GND on the RX board.
4. Connect a DC 2.4V to the +B power line externally.
5. Connect lead wires to IC301 pin 4, pin 6, pin 7 and GND on
the RX-BASE board.
6. Connect a resistor 33k Ωbetween IC301 pin 4 and pin 7.
7. Connect lead wires to the speakers’ terminals (L+,L-,R+,R-)
on the RX-BASE board.
3-5. Free Run Frequency Check and Adjustment
1. Setthe transmitterAUDIOIN-B connector (J402) to no signal.
Note: In this case, operation time is about 5 or 10 minutes.
Perform confirmation for less than 5 minutes.
2. Check the transmitter power indicator (red) lights.
3. Set the transmitter CHANNEL switch to 1.
4. Connect DC 1.2V across TP (VT) and GND.
5. Connect a frequency counter to IC301 pin 4 and GND on the
RX-BASE board, then confirm the frequency within 76kHz
±50Hz
6. Whenthe frequency dose not satisfy thespecifiedvalue, adjust
the value of the frequency counter to specification by RV301
on the RX-BASE board.
Specified values: 76kHz ±50Hz.
7. Remove a 33 kΩresister between IC301 pin 4 and pin 7.
Setting :
+
–
Regulated power supply
(DC 1.2V)
TP
(VT) +
–+ –
IC301 pin6 IC301 pin
4
OSCILLOSCPE
CH1 CH2
3-6. Receive Frequency Check and Adjustment
1. Set the transmitter CHANNEL switch to 2.
2. Set the transmitter NOISE FILTER switch to OFF.
3. Input a signal of 1kHz, 316mVrms to transmitter AUDIO IN-
B(L-ch) connector only.
4. Keep distance between transmitter and headphones to 5 meters
over.
5. Set the headphones volume (RV302) to minimum.
6. Connect DC1.2V across TP (VT) and GND.
7. Connect an oscilloscope CH1 and CH2 to IC301 pin 6 and
pin 4.
8. Check the waveform of the oscilloscope to CH1 is demodulated
1kHz signal and CH2 is GND.
9. If CH1 and CH2 are not satisfied in step 8, adjust the coil (L301)
on the RX board to satisfied step 8.
10. Open between Q302 corrector and GND on the RX board.
11. Connect an oscilloscope to TP (VT).
12. Whenthetransmitteroff,check the waveform of the oscilloscope
as follows:
GND
1.8V
2-3sec 0.6V
13. Set the transmitter CHANNEL switch to 1.
14. Push the headphones tuning switch (S301) to receive radio
frequency.
15. Check same step 8.
16. Set the transmitter CHANNEL switch to 3.
17. Push the headphones tuning switch (S301) to receive radio
frequency.
18. Check same step 8.
Setting :
+
–
Regulated power supply
(DC 1.2V)
TP
(VT) +
–
TP
(VT)
+
–+ –
IC301
pin6 IC301
pin4
OSCILLOSCPE OSCILLOSCP
E
CH1 CH2
3-7. Carrier Modulation Check
1. Set the transmitter CHANNEL switch to 2.
2. Set the transmitter NOISE FILTER switch to OFF.
3. Input a signal of 1kHz, 316mVrms to transmitterAUDIO IN-
B (L-ch) connector only.
4. Set the headphones volume (RV302) to minimum.
5. Connect an oscilloscope CH1 and CH2 to IC301 pin 6 and
pin 4.
6. Push the headphone tuning switch (S301) to receive radio
frequency.
7. Check the waveform of the oscilloscope that the CH1 is
demodulated 1kHz signal and CH2 is GND.
8. Connect an AC voltmeter with LPF to IC301 pin 6 and GND.
9. Check the value of the AC voltmeter to 26mVrms ±2mV.
Setting :
+
–
Digital voltmeter
(AC range)
LPF
IC301
pin6
33000P
2.2K
+
–+ –
IC301 pin6 IC301 pin4
OSCILLOSCPE
CH1 CH2
3-8. Separation Check
1. Set the transmitter CHANNEL switch to 2.
2. Set the transmitter NOISE FILTER switch to OFF.
3. Input a signal of 1kHz, 316mVrms to transmitterAUDIO IN-
B (L-ch) connector only.
4. Connect an oscilloscope CH1 to speakers terminal (L+,L-)
and CH2 to IC301 pin 4 and GND.
5. Push the headphones tuning switch (S301) to receive radio
frequency.
6. Check the waveform of the oscilloscope that the CH1 is
demodulated 1kHz signal and CH2 is GND.
7. Connect an AC voltmeter with LPF to speakers terminal
(L+,L-).
8. Adjust the value of the AC voltmeter to specification by
headphones volume RV302.
Specified values: 155mVrms
9. Connect an AC voltmeter with LPF to speakersterminal
(R+,R-).
10. Measure the value of the AC voltmeter.
11. Check the difference of the L and R to more than 20dB.
12. Input a signal of 1kHz, 316mVrms to transmitterAUDIO IN-
B (R-ch) connector only.
13. Connect an AC voltmeter with LPF to speakers terminal
(R+,R-).
14. Adjust the value of the AC voltmeter to specification by
headphones volume RV302.
Specified values: 155mVrms
15. Connect an AC voltmeter with LPF to speakers terminal
(L+,L-).
16. Measure the value of the AC voltmeter.
17. Check the difference of the L and R to more than 20 dB.

9
MDR-RF920R/RF960R
+
–
Digital voltmeter
(AC range)
L+ / R+
L– / R–
+
–+ –
L+ IC301 pin
4
OSCILLOSCPE
L–
CH1 CH2
Asjustment Location :
R323
IC302
R309
Q302
C358
C369
Q304
R360 C318
R320
C368
R358
R302
C331
R362
C323
R361
C304
R304
C319
R363
D303
R367
C317
C305
R357
C301
R354
R364
C315
IC305
R332
C320
R326
R312
R325
C333
R314
R330
R331
L302
C344
RV303
R356
R310
C332
R308
IC304
C307
IC301
C350
C357
R305
R333
C361
C328
R328
C335
R366
C302
D301
C362
R315
R334
C367
C327
R321
R316
C329
C336
R318
R355
C314
C313
TP(VT)
R340
C351
R327
C346
R341
R342
R343
R344
R345
R346
R347
R349 C341
C342
R351
R352
IC303
JC301
JC302
JC303
JC304
JC305
JC306
JC307
JC308
JC310
D304
JW311
RV301
CF302
JW307
JW310
JW305
JW302
RV302
C311
C316
C303
C312
C326
C325
C308
C330
C347
C306
C324
L301
C309
C310
CF301
N
VOL
POWER
TUNE
E
E
E
RF920R
RF920R
RF960R
RF960RK
Q303
1
6
5
10
BOARDRX-BASE (Conductor side)
1-861-438-
1
16
15
30
+B
IC301 7
(Connect 33k Ω resistor)
IC301
4
L–
L+
R–
R+
TP(VT)
RV303
TUNE(RF920R MODEL)
Q302
+B
power line
(DC +2.4V)

10
MDR-RF920R/RF960R
S301:TUNE (RF960R MODEL)
RV301: Free Run Frequency Adjustment
CT1:
CT1
RV301
L301
S301
BOARDRX-BASE (Component side)

MDR-RF920R/RF960R
1111
4-1. BLOCK DIAGRAM
RX-BASE BOARD
L301
FM
OSC
D301
REG
18 1316 FM IF/
DISCRI
DECODE
AMP
DETUNE
MUTE
TUNING
IND
STEREO
IND
CF301
26
CF302
10.7MHz
6 2
10
9
5R-CH
POWER AMP
IC302
MUTE
Q303
22
20
FM FE
L302
REG
COUNTERCOUNTER
IC303
DETECT
IC304
CLR
IC305
OSC
Q301
SWITCH
Q302
10
12
27
Q304
DQ
Q
AUTO
BLEND
MUTE MONO/ST
SW
1/2
COUNTER
PD1
PD1
VCO
21 REG
RV301
FREE RUN
FREQUENCY
IF AMP/DECODE
IC301
ANT301
ANTENNA
R-CH
SP1
SPEAKER
L-CH
SP2
SPEAKER
R-CH
D304
S101
(AUTO ON/OFF)
+
–
B+
POWER
BATTERY
CHARGE
TERMINAL
(TO TMR-RF960R)
RECHAGEABLE BATTERY
NICKEL
(METAL HYDRIDE)
BP-HP550
OR
S301
TUNE
RF960R MODEL
RF960R MODEL
RF920R MODEL
RV303
TUNE
VOL
OSC
Q3
RF AMP
Q1
MIX
Q2
CT1
IO
FE UNIT
(FRONT END)
715
11
Q4 Q10
D/A
6 1
23
5
6
1
CK
D-FF
BATTERY
VOLTAGE
DETECT
IC201
12
B+ SWITCH
Q201,202
S101
D201 S201,202
CLOCK OSC/COUNTER
RV302
L301
RECEIVE
FREQUENCY
S201,202
RECHAGEABLE BATTERY
DETECT
DRY BATTERY
SIZE "AAA"
(IEC DESIGNATION R03)
2PCS, 2.4V
•R-ch is omitted due to same as L-ch
•Signal path.
F: FM
L: AUDIO
SECTION 4
DIAGRAMS

MDR-RF920R/RF960R
1212
4-2. SCHEMATIC DIAGRAM – RX-BASE SECTION (RF920R) –
Q304
SP2
SP1
L-CH
R-CH
C325
C326
R314
C361
R334
C362
R333
RV302(2/2)
RV302(1/2)
R328
R327
C344
S301
JW311
JW310
C369
R354
Q302
JW306
C324
C327
C328
C368
R315
R316
R321
C357
D304
Q303
C323
R318
C367 C330
JW308
R358
JC305
C358
R367 R355
R356
R332
R364 JC303
R357
R360
JC307
R362
R363
R361
C341
R349
C331
C310
C309
C308
C307
C306
R305
C305
R304
C304
JC301
R331
JW304
R325
R326
C335 C329
C350
C351
R330
C301
R351
R352
C342
JW302
C347
C346
D303
R366
JW303
JC308
R340
R347
R346
R345
JW301
JW305
R343
R342
R344
R341
C302
R302
JC310 RV301
C311
R310
C317
C316
C320
D301
R312
C312
C313
JC302
C333
C315
C314
L302
0.33µH
C332
C336
C319
R308 R320
JC304
R309
C303
S101
R201
R202
R203
C203
R204
S202 S201
C202
C201
JW201
D201
IC201
Q201
Q202
L301
CF301
CF302
IC303
IC304
IC305
IC301
ANT301
JW307
IC302
DTC114TKA-T146
SPEAKER
SPEAKER
220
6.3V
220
6.3V
100k
100p
2.2k
100p
2.2k
15k
15k
0.1
0
0
0.01
22k
2SC2412K-T-146-R
SWITCH
0
220 6.3V
0.1
0.1
0.01
10
10
1k
0.01
SLC-22VR3F
2SC2412K-T-146-R
MUTE
0.1
47k
0.001 33
16V
0
22k
0
0.001
47k 47k
22k
1k
22k 0
22k
22k
0
10k
22k
22k
0.1
10k
1
150V
150V
22 16V
0.01
22 16V
3.3k
0.022
3.3k
0.022
0
2.2k
0
330
150
0.01 0.01
1
1
10
1
100k
1M
0.01
0
47
16V 0.22
RD2.2SB-T1
150
0
0
6.8k
7.5k
30k
15k
0
0
120k
240k
62k
470k
0.47
2.2k
04.7k
10
16V
3.3k
0.001
10
16V
0.1
HVU363ATRU
15k
3.3
50V
0.01
0
3p
22p
27p
56p
56p
0.01
2.2k 10
0
100k
4.7
16V
(AUTO ON/OFF)
10k
1k
1M
0.01
100k
0.001
100p
0
RB411D
XC61CN1902NR
2SB1690K
B+ SWITCH
2SC2412K-T
B+ SWITCH
SN74HC4060PWR
BA10393F-E2
SN74AHC2G
SN74AHC2G74HDCTR
CXA1538N-T4
ANTENNA
0
LA4533M-TE-L-E
POWER AMP
VOL
IF AMP
CLOCK OSC/COUNTER
FREQUENCY
FREE RUN
DECODE
D-FF
DETECT
INVERTER
POWER
FREQUENCY
L301
RECEIVE
SIZE"AAA"
(IEC DESIGNATION R03)
DRY BATTERY
2PCS,3V
OR
BATTERY
RECHARGEABLE
(METAL HYDRIDE)
BP-HP550
BATTERY
RECHARGEABLE
S201,202
DETECT
2PCS,2.4V
CHARGE
TERMINAL
BATTERY
(TO TMR-RF960R)
15

MDR-RF920R/RF960R
1313
4-3. SCHEMATIC DIAGRAM – RX-BASE SECTION (RF960R) –
ANT301
SP1
L-CH
R-CH
SP2
S101
S202 S201
D201
IC201
C203
R203
C202
Q202
R202
C201 R201
R204
Q201
JW201
D304
C368
R321
C325
C326
R314
R315
R316
C327
C328
C324
C357
JW308 C330
C367
RV302(2/2)
R327
C350 C351
R328
RV302(1/2)
C361
C362
R334
C301
R325
C331
C369
C310
C309
C308
C307
C306
C305
R305
R304
C304
JC301
JW305
JW301
JW304
R330
C303
C302
R302
RV301
JC310
C311
R310
L301
JC302
C315
C313
C333
C314
L302
0.33µH
C336
C332
JW309
C319
R309
JC304
RV303 R323
R308
JC306
C318
C317
C316
D301
C312
R312
C320
R320
JW307
R326
C335 C329
CF301
CF302
IC301
R333
IC302
ANTENNA
SPEAKER
SPEAKER
(AUTO ON/OFF)
RB411D
XC61CN1902NR
0.01
1M
0.001
2SC2412K-T
B+ SWITCH
1k
100p 10k
100k
2SB1690K
B+ SWITCH
0
SLC-22VR3F
0.01
1k
220
6.3V
220
6.3V
100k
10
10
0.1
0.1
220
6.3V
0.01
033
16V
0.001
15k
11
15k
100p
100p
2.2k
1
330
0.01
0.01
150V
2.2 50V
22 16V
0.01
22 16V
0.022
3.3k
3.3k
0.022
0
0
0
0
10
4.7
16V
0.47
2.2k
4.7k
0
10
16V
3.3k
0
15p
0.01
5p
27p 56p
56p
0
0.01
100k
0
10k 6.8k
2.2k
0
1
0.001
10
16V
HVU363ATRU
3.3
50V
15k
0.1
10
0
150
0.01 0.01
CXA1538N-T4
2.2k
LA4533M-TE-L-E
POWER AMP
VOL
IF AMP
FREQUENCY
L301
RECEIVE
FREQUENCY
FREE RUN
DECODE
POWER
SIZE"AAA"
(IEC DESIGNATION R03)
DRY BATTERY
2PCS,3V
OR
BATTERY
RECHARGEABLE
(METAL HYDRIDE)
BP-HP550
BATTERY
RECHARGEABLE
S201,202
DETECT
2PCS,2.4V
CHARGE
TERMINAL
BATTERY
(TO TMR-RF960R)
15

MDR-RF920R/RF960R
1414
4-4. PRINTED WIRING BOARD – RX-BASE SECTION –
1
6
5
10
BOARDRX-BASE
BOARDRX-BATTERY
BOARDSW
DRY BATTERY
SIZE "AAA"
(IEC DESIGNATION R03)
2PCS, 3V
OR
RECHARGEABLE
BATTERY
(METAL HYDRIDE)
BP-HP550
2PCS, 2.4V
S201
(RECHARGEABLE
BATTERY DETECT)
S202
(RECHARGEABLE
BATTERY DETECT)
11
(11)
1-861-439-
11
(11)
1-861-438-
11
(11)
1-689-785-
BATTERY CHARGE TERMINAL
(TO TMR-RF920R/RF960R)
+- +-
R323
C201
C202
IC201
R204
R201
R202
Q201
Q202
C203
R203
D201
S101
(AUTO ON/OFF)
IC302
R309
Q302
C358
C369
Q304
R360 C318
R320
C368
R358
R302
C331
R362
C323
R361
C304
R304
C319
R363
Q303
D303
R367
C317
C305
R357
C301
R354
R364
C315
IC305
R332
C320
R326
R312
R325
C333
R314
R330
R331
L302
C344
RV303
R356
R310
C332
R308
IC304
C307
IC301
C350
C357
R305
R333
C361
C328
R328
C335
R366
C302
D301
C362
R315
R334
C367
C327
R321
R316
C329
C336
R318
R355
C314
C313
TP(VT)
R340
C351
R327
C346
R341
R342
R343
R344
R345
R346
R347
R349 C341
C342
R351
R352
IC303
JC301
JC302
JC303
JC304
JC305
JC306
JC307
JC308
JC310
C205
JW201
D304
JW311
RV301
S301
CF302
JW307
JW310
JW305
JW302
RV302
C311
C316
C303
C312
C326
C325
C308
C330
C347
C306
C324
L301
C309
C310
CF301
N
VOL
POWER
TUNE
TUNE
ANT301
LR
SP2
SPEAKER
SP1
SPEAKER
E
E
E
E
E
RF920R
RF960R
RF920R
RF960R
RF960R
ANT +B
ARX-FE
BOARD
(Page 16)
IF
+B
23 4 5 6 7 8
A
1
B
C
D
E
F
Ref. No. Location
D201 B-4
D301 C-7
D303 D-6
D304 E-7
IC201 C-4
IC301 B-7
IC302 E-6
IC303 D-6
IC304 E-7
IC305 D-7
Q201 D-4
Q202 C-4
Q302 D-7
Q303 E-7
Q304 D-7
• Semiconductor
Location

15
MDR-RF920R/RF960R
• IC Block Diagram
IC302 LA4533M-TE-L-E
4-5. SCHEMATIC DIAGRAM – RX-FE SECTION –
Q2
C2 R1
C8
C1
C4
C6
R4
L1
C10
C12
R7
C13
C14
R8
Q3
X1
C29
R10
C30
C5
L2
0.33µH
0.33µH
C28 C9
C24
C23
C39
L4
C3
C25
L5
C7
CT1
C20
L7
L6
JC11
C19
R5
C22
L8
R6
C15
C11
C26
C40
JC2
Q1
CN2
CN3
CN1
2SC3120
MIXER
0.001 390k
2p
0.5p
1p
0.001
470k
0.5p
11p
150
3p
47p
47k
2SC5084-OTE85L
OSC
SAW433.92
0.001
100k
62p
62p
120p 47p
1.5p
15p
0.001
1.5T
1p
100p
1.5T
1p
5p
0.001
1.5T
1.5T
0
0.001
150k
100p
12nH
150
100p
0.5p
1.5p
0.001
0
3SK309
RF AMP
(RF920R)
12
(RF960R)
13
1
2
3
4
5
10
9
8
7
6
POWER
SWITCH
BIAS
MUTE
CIRCUIT
AMP 1
POWER SWITCH
IN-1
PRE-GND
IN-2
REF
MUTE SWITCH
OUT-1
POWER GND
OUT-2
VCC
AMP 2
Note on Schematic Diagram:
•All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or
less are not indicated except for electrolytics and tantalums.
•All resistors are in Ωand 1/4W or less unless otherwise specified.
•A: B+ Line.
•H: adjustment for repair.
•Power voltage is dc 2.4V and fed with regulated dc power supply
from external power voltage jack.
•Voltages and waveforms are dc with respect to ground under no-
signal (detuned) conditions.
•Voltages are taken with a VOM (Input impedance 10 MΩ).
•Waveforms are taken with a oscilloscope.
Voltagevariationsmaybenotedduetonormalproductiontolerances.
•Signal path.
F: FM
L: AUDIO

16
MDR-RF920R/RF960R
4-6. PRINTED WIRING BOARD – RX-FE SECTION –
C1
C20
L1
L2
C24
C10
C12
C7
CT1
C22
C26
R4
Q3
Q2
L8
Q1
X1
R8
R7
R10
JC11
R6
JC2
R1
R5
ANT
+B
IF
C2
C3
C25
C15
C39
C4
C23
C40
C5
C30
C6
C28
C9
C8
C11
C29
C19
C13
C14
(SIDE A)
(SIDE B)
BOARDRX-FE
BOARDRX-FE
21
(21)
21
(21)
1-688-206-
1-688-206-
L5
L4 L7
L6
A
RX-BASE
BOARD
(Page 14)
23
A
1
B
C
Ref. No. Location
Q1 C-2
Q2 C-2
Q3 C-3
• Semiconductor
Location Note on PrintedWiring Boards:
•X: parts extracted from the component side.
•®: Through hole.
•: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Partsonthepatternfacesideseenfrom
(Conductor B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component A) the parts face are indicated.

17
MDR-RF920R/RF960R
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
SECTION 5
EXPLODED VIEWS
NOTE:
•-XX, -X mean standardized parts, so they may
have some differences from the original one.
•Items marked “*” are not stocked since they
are seldom required for routine service. Some
delayshould beanticipated when ordering these
items.
•Themechanical parts withno reference number
in the exploded views are not supplied.
•Hardware (# mark) list and accessories are
given in the last of this parts list.
a
a
not
supplied
not
supplied
not
supplied
not
supplied
not
supplied not
supplied
1
2
3
4
SP2
SP1
6
7
8
9
2
2
2
2
9
10
10
12
13
11
14 15 16
17
18
20
21
22
19
13-246-154-01 PAD (R), EAR (including RX-FE BOARD)(RF920R)
13-246-154-13 PAD (R), EAR (including RX-FE BOARD)(RF960R)
23-253-143-01 SCREW (B2.6), (+) P TAPPING
*3A-4547-109-A RX-BASE BOARD, COMPLETE (RF920R)
*3A-4547-111-A RX-BASE BOARD, COMPLETE (RF960R)
4X-3383-913-1 PLATE (R) SUB ASSY, FRONT (RF960R)
4X-3383-915-2 PLATE (R) SUB ASSY, FRONT (RF920R)
63-251-098-01 HOUSING (R) (RF920R)
6X-3383-911-1 HOUSING (R) SUB ASSY (RF960R)
73-251-102-01 CAP (R), HOUSING (RF920R)
83-254-082-11 SCREW
94-966-792-01 STOPPER, (LOWER)
10 4-966-791-01 STOPPER (UPPER)
11 3-257-911-01 SPRING, TENSION
12 3-257-555-02 CUSHION (S/W)
13 3-246-137-01 BAND, HEAD
14 3-246-153-01 PAD (L), EAR (RF920R)
14 3-246-153-13 PAD (L), EAR (RF960R)
15 X-3383-912-1 PLATE (L) SUB ASSY, FRONT (RF960R)
15 X-3383-914-2 PLATE (L) SUB ASSY, FRONT (RF920R)
*16 A-4547-106-A RX-BATTERY MOUNTED PC BOARD
17 3-246-151-03 TERMINAL (-), BATTERY
18 3-246-150-02 TERMINAL (+), BATTERY
19 3-246-152-02 TERMINAL, CHARGE
20 3-246-148-01 BUTTON
21 3-246-142-01 HOUSING (L)
22 3-251-101-11 LID, BATTERY (RF920R)
22 3-251-108-11 LID, BATTERY (RF960R)
SP1 1-542-400-11 DRIVER (030F032) (L-CH)
SP2 1-542-400-11 DRIVER (030F032) (R-CH)

18
MDR-RF920R/RF960R SECTION 6
ELECTRICAL PARTS LIST
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
NOTE:
•Due to standardization, replacements in the
parts list may be different from the parts
specifiedin the diagramsor the components
used on the set.
•-XX, -X mean standardized parts, so they
may have some difference from the original
one.
•Itemsmarked “*” arenot stocked sincethey
are seldom required for routine service.
Some delay should be anticipated when
ordering these items.
•CAPACITORS:
uF: µF
•RESISTORS
All resistors are in ohms.
METAL: metal-film resistor
METALOXIDE: Metal Oxide-film resistor
F: nonflammable
•COILS
uH: µH
•SEMICONDUCTORS
In each case, u: µ, for example:
uA...: µA... , uPA... , µPA... ,
uPB... , µPB... , uPC... , µPC... ,
uPD..., µPD...
*A-4547-109-A RX-BASE BOARD, COMPLETE
(including RX-FE BOARD)(RF920R)
*A-4547-111-A RX-BASE BOARD, COMPLETE
(including RX-FE BOARD)(RF960R)
*********************
< CAPACITOR >
C1 1-167-494-11 CERAMIC CHIP 0.5PF 0.1PF 50V
C2 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C3 1-162-905-11 CERAMIC CHIP 1PF 0.25PF 50V
C4 1-162-905-11 CERAMIC CHIP 1PF 0.25PF 50V
C5 1-164-381-91 CERAMIC CHIP 62PF 5% 50V
C6 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C7 1-162-905-11 CERAMIC CHIP 1PF 0.25PF 50V
C8 1-162-907-11 CERAMIC CHIP 2PF 0.25PF 50V
C9 1-162-923-11 CERAMIC CHIP 47PF 5% 50V
C10 1-107-494-11 CERAMIC CHIP 0.5PF 0.1PF 50V
C11 1-107-494-11 CERAMIC CHIP 0.5PF 0.1PF 50V
C12 1-164-376-11 CERAMIC CHIP 11PF 5% 50V
C13 1-162-908-11 CERAMIC CHIP 3PF 0.25PF 50V
C14 1-162-923-11 CERAMIC CHIP 47PF 5% 50V
C15 1-162-927-11 CERAMIC CHIP 100PF 5% 50V
C19 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C20 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C22 1-162-927-11 CERAMIC CHIP 100PF 5% 50V
C23 1-162-917-11 CERAMIC CHIP 15PF 5% 50V
C24 1-162-906-11 CERAMIC CHIP 1.5PF 0.25PF 50V
C25 1-162-927-11 CERAMIC CHIP 100PF 5% 50V
C26 1-162-906-11 CERAMIC CHIP 1.5PF 0.25PF 50V
C28 1-162-928-11 CERAMIC CHIP 120PF 5% 50V
C29 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C30 1-164-381-91 CERAMIC CHIP 62PF 5% 50V
C39 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C40 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C301 1-165-908-11 CERAMIC CHIP 1uF 10% 10V
C302 1-125-891-11 CERAMIC CHIP 0.47uF 10% 10V
C303 1-124-231-61 ELECT 4.7uF 20% 16V
C304 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V
C305 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V
C306 1-124-234-00 ELECT 22uF 20% 16V
C307 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C308 1-124-234-00 ELECT 22uF 20% 16V
C309 1-124-257-00 ELECT 2.2uF 20% 50V
(RF920R)
C309 1-123-611-61 ELECT 1uF 20% 50V
(RF960R)
C310 1-123-611-61 ELECT 1uF 20% 50V
C311 1-124-233-11 ELECT 10uF 20% 16V
C312 1-126-162-11 ELECT 3.3uF 20% 50V
C313 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C314 1-164-239-91 CERAMIC CHIP 27PF 5% 50V
C315 1-162-917-11 CERAMIC CHIP 15PF 5% 50V
(RF920R)
C315 1-162-919-11 CERAMIC CHIP 22PF 5% 50V
(RF960R)
C316 1-124-233-11 ELECT 10uF 20% 16V
C317 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C318 1-165-908-11 CERAMIC CHIP 1uF 10% 10V
(RF920R)
C319 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C320 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C323 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
(RF960R)
C324 1-124-635-00 ELECT 220uF 20% 6.3V
C325 1-124-635-00 ELECT 220uF 20% 6.3V
C326 1-124-635-00 ELECT 220uF 20% 6.3V
C327 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C328 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C329 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C330 1-124-242-00 ELECT 33uF 20% 25V
C331 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
(RF920R)
C331 1-165-908-11 CERAMIC CHIP 1uF 10% 10V
(RF960R)
C332 1-162-924-11 CERAMIC CHIP 56PF 5% 50V
C333 1-162-910-11 CERAMIC CHIP 5PF 0.25PF 50V
(RF920R)
C333 1-162-908-11 CERAMIC CHIP 3PF 0.25PF 50V
(RF960R)
C335 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C336 1-162-924-11 CERAMIC CHIP 56PF 5% 50V
C341 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
(RF960R)
C342 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
(RF960R)
C344 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
(RF960R)
C346 1-127-715-91 CERAMIC CHIP 0.22uF 10% 16V
(RF960R)
C347 1-124-589-11 ELECT 47uF 20% 16V
(RF960R)
C350 1-165-908-11 CERAMIC CHIP 1uF 10% 10V
RX-BASE RX-FE
When indicating parts by reference
number, please include the board.

19
MDR-RF920R/RF960R
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
C351 1-165-908-11 CERAMIC CHIP 1uF 10% 10V
C357 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C358 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
(RF960R)
C361 1-162-927-11 CERAMIC CHIP 100PF 5% 50V
C362 1-162-927-11 CERAMIC CHIP 100PF 5% 50V
C367 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C368 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C369 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
< FILTER >
CF301 1-760-235-81 FILTER, CERAMIC
CF302 1-579-392-81 FILTER, CERAMIC(DISCRIMINATOR)
< TRIMMER >
CT1 1-141-325-11 CAP, CHIP TYPE TRIMMER 5PF
< DIODE >
D301 8-719-083-90 DIODE HVU363ATRU
D303 8-719-036-66 DIODE RD2.2SB-T1
D304 8-719-941-07 DIODE SLC-22VR3 (POWER)
< IC >
IC301 8-752-072-12 IC CXA1538N-T4
IC302 6-704-731-01 IC LA4533M-TE-L-E
IC303 6-705-851-01 IC SN74HC4060PWR (RF960R)
IC304 8-759-510-73 IC BA10393F-E2 (RF960R)
IC305 6-702-827-01 IC SN74AHC2G74HDCTR (RF960R)
< JUMPER RESISTOR >
JC2 1-216-864-11 METAL CHIP 0 5% 1/10W
JC11 1-216-864-11 METAL CHIP 0 5% 1/10W
JC301 1-216-864-11 METAL CHIP 0 5% 1/10W
JC302 1-216-864-11 METAL CHIP 0 5% 1/10W
JC303 1-216-864-11 METAL CHIP 0 5% 1/10W
(RF960R)
JC304 1-216-864-11 METAL CHIP 0 5% 1/10W
JC305 1-216-864-11 METAL CHIP 0 5% 1/10W
(RF960R)
JC306 1-216-864-11 METAL CHIP 0 5% 1/10W
(RF920R)
JC307 1-216-864-11 METAL CHIP 0 5% 1/10W
(RF960R)
JC308 1-216-864-11 METAL CHIP 0 5% 1/10W
(RF960R)
JC310 1-216-864-11 METAL CHIP 0 5% 1/10W
< COIL >
L1 1-412-933-11 INDUCTOR 0.33uH
L2 1-412-933-11 INDUCTOR 0.33uH
L4 1-416-821-12 COIL , AIR-CORE
L5 1-416-821-12 COIL , AIR-CORE
L6 1-416-821-12 COIL , AIR-CORE
L7 1-416-821-12 COIL , AIR-CORE
L8 1-414-665-11 INDUCTOR 12nH
L301 1-428-911-11 COIL, AIR-CORE
L302 1-412-933-11 INDUCTOR 0.33uH
< TRANSISTOR >
Q1 8-729-040-64 TRANSISTOR 3SK309XV-TL
Q2 8-729-209-45 TRANSISTOR 2SC3120-TE85R
Q3 8-729-043-92 TRANSISTOR 2SC5084-0(TE85L)
Q302 8-729-901-81 TRANSISTOR 2SC2412K-T-146-R (RF960R)
Q303 8-729-901-81 TRANSISTOR 2SC2412K-T-146-R (RF960R)
Q304 8-729-027-44 TRANSISTOR DTC114TKA-T146 (RF960R)
< RESISTOR >
R1 1-216-852-11 METAL CHIP 390K 5% 1/10W
R4 1-216-853-11 METAL CHIP 470K 5% 1/10W
R5 1-216-847-11 METAL CHIP 150K 5% 1/10W
R6 1-216-811-11 METAL CHIP 150 5% 1/10W
R7 1-216-811-11 METAL CHIP 150 5% 1/10W
R8 1-216-841-11 METAL CHIP 47K 5% 1/10W
R10 1-216-845-11 METAL CHIP 100K 5% 1/10W
R302 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R304 1-216-827-11 METAL CHIP 3.3K 5% 1/10W
R305 1-216-827-11 METAL CHIP 3.3K 5% 1/10W
R308 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R309 1-216-845-11 METAL CHIP 100K 5% 1/10W
R310 1-216-827-11 METAL CHIP 3.3K 5% 1/10W
R312 1-216-835-11 METAL CHIP 15K 5% 1/10W
R314 1-216-845-11 METAL CHIP 100K 5% 1/10W
R315 1-216-797-11 METAL CHIP 10 5% 1/10W
R316 1-216-797-11 METAL CHIP 10 5% 1/10W
R318 1-216-841-11 METAL CHIP 47K 5% 1/10W
(RF960R)
R320 1-216-797-11 METAL CHIP 10 5% 1/10W
R321 1-216-821-11 METAL CHIP 1K 5% 1/10W
R323 1-218-867-11 METAL CHIP 6.8K 5% 1/10W
(RF920R)
R325 1-216-815-11 METAL CHIP 330 5% 1/10W
R326 1-216-811-11 METAL CHIP 150 5% 1/10W
R327 1-216-835-11 METAL CHIP 15K 5% 1/10W
R328 1-216-835-11 METAL CHIP 15K 5% 1/10W
R330 1-216-797-11 METAL CHIP 10 5% 1/10W
R331 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
(RF960R)
R332 1-216-821-11 METAL CHIP 1K 5% 1/10W
(RF960R)
R333 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R334 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R340 1-218-867-11 METAL CHIP 6.8K 5% 1/10W
(RF960R)
R341 1-216-853-11 METAL CHIP 470K 5% 1/10W
(RF960R)
R342 1-218-749-11 METAL CHIP 240K 5% 1/10W
(RF960R)
R343 1-216-846-11 METAL CHIP 120K 5% 1/10W
(RF960R)
R344 1-218-890-11 METAL CHIP 62K 5% 1/10W
(RF960R)
R345 1-216-835-11 METAL CHIP 15K 5% 1/10W
(RF960R)
R346 1-218-727-11 METAL CHIP 30K 5% 1/10W
(RF960R)
R347 1-218-344-11 METAL CHIP 7.5K 5% 1/10W
(RF960R)
RX-BASE RX-FE

20
MDR-RF920R/RF960R
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
R349 1-216-833-11 METAL CHIP 10K 5% 1/10W
(RF960R)
R351 1-216-845-11 METAL CHIP 100K 5% 1/10W
(RF960R)
R352 1-216-857-11 METAL CHIP 1M 5% 1/10W
(RF960R)
R354 1-216-837-11 METAL CHIP 22K 5% 1/10W
(RF960R)
R355 1-216-841-11 METAL CHIP 47K 5% 1/10W
(RF960R)
R356 1-216-837-11 METAL CHIP 22K 5% 1/10W
(RF960R)
R357 1-216-837-11 METAL CHIP 22K 5% 1/10W
(RF960R)
R358 1-216-837-11 METAL CHIP 22K 5% 1/10W
(RF960R)
R360 1-216-837-11 METAL CHIP 22K 5% 1/10W
(RF960R)
R361 1-216-837-11 METAL CHIP 22K 5% 1/10W
(RF960R)
R362 1-216-833-11 METAL CHIP 10K 5% 1/10W
(RF960R)
R363 1-216-837-11 METAL CHIP 22K 5% 1/10W
(RF960R)
R364 1-216-837-11 METAL CHIP 22K 5% 1/10W
(RF960R)
R366 1-216-811-11 METAL CHIP 150 5% 1/10W
(RF960R)
R367 1-216-841-11 METAL CHIP 47K 5% 1/10W
(RF960R)
< VARIABLE RESISTOR >
RV301 1-241-763-11 RES, ADJ, CARBON 4.7K
(FREE RUN FREQUENCY)
< SWITCH >
S301 1-786-596-11 SWITCH, TACTILE (TUNE) (RF960R)
< RESONATOR >
X1 1-813-239-11 RESONATOR, SAW
******************************************************
*A-4547-106-A RX-BATTERY BOARD, COMPLETE
************************
< CAPACITOR >
C201 1-162-927-11 CERAMIC CHIP 100PF 5% 50V
C202 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C203 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
< DIODE >
D201 8-719-975-40 DIODE RB411D
< IC >
IC201 6-702-083-01 IC XC61CN1902NR
< TRANSISTOR >
Q201 6-550-363-01 TRANSISTOR 2SB1690KT146
Q202 8-729-901-81 TRANSISTOR 2SC2412K-T-146-R
< RESISTOR >
R201 1-216-833-11 METAL CHIP 10K 5% 1/10W
R202 1-216-821-11 METAL CHIP 1K 5% 1/10W
R203 1-216-857-11 METAL CHIP 1M 5% 1/10W
R204 1-216-845-11 METAL CHIP 100K 5% 1/10W
< SWITCH >
S201 1-786-130-11 SWITCH, PUSH (1 KEY)
(RECHERGABLE BATTERY DET)
S202 1-762-917-11 SWITCH, DETECTION (SMALL TYPE)
(RECHERGABLE BATTERY DET)
******************************************************
SW BOARD
*********
< SWITCH >
S101 1-762-003-11 SWITCH, PUSH (AUTO ON/OFF)
******************************************************
MISCELLANEOUS
*************
SP1 1-542-400-11 DRIVER (030F032) (L-CH)
SP2 1-542-400-11 DRIVER (030F032) (R-CH)
******************************************************
RX-FE RX-BATTERY SWRX-BASE