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­ 2 ­
SECTION 1
ELECTRICAL ADJUSTMENTS
NOTE :
1. The adjustments should be performed in the order given.
2. The adjustments and measurements should be perfomed for both
L-ch and R-ch unless otherwise indicated.
3. L-ch adjustment should be completed before performing R-ch
adjustment.
OSCILLATING FREQUENCY Adjustment
Procedure :
No signal state.
1. Connect the frequency counter to TP (CL4) (L-ch) and TP (CL-
54) (R-ch).
2. Adjust with RV1 (L-ch) and RV2 (R-ch) so that the reading on
the frequency counter becomes the specified value.
Specified Value:
L-ch
RV1
2.3MHz
±2kHz
R-ch
RV2
2.8MHz
±2kHz
Connection and Adjustments Location :
[TX BOARD] (Conductor side)
regulated dc
power suppluy
9 Vdc
frequency counter
TP
(CL4)
TP
(CL54)
TP (CL54)
(R-ch)
TP(CL4)
(L-ch)
RV2
(R-ch)
RV1
(L-ch)
[TX BOARD] (Component side)
Oscillating frequency
adjustment
MICROFILM
TMR-IF330R
SERVICE MANUAL
INFRARED TRANSMITTER
SPECIFICATIONS
AEP Model
UK Model
TMR-IF330R is the component model block one in MDR-IF330RK.
Cordless Stereo Headphones
MDR-IF330R
Transmitter
TMR-IF330R
COMPONENT MODEL NAME FOR MDR-IF330RK
General
Modulation system
Frequency modulation
Carrier frequency
Right 2.8MHz
Left 2.3MHz
Frequency response 18 ­ 22,000Hz
Power source
DC IN 9V jack accepts power supplied from the AC
power adaptor for use on the following voltages:
Operating voltage
UK model
230 - 240V AC,50Hz
AEP model
220 - 230V AC,50Hz
Audio input
Phono jacks/stereo mini jack
Dimensions
Approx. 106 x 217 x 110mm
(4 1/4 x 8 5/8 x 4 3/8in.) (w/h/d)
Mass
Approx. 125g (4.4oz.)
Design and specifications are subject to change without notice.


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­ 5 ­
­ 6 ­
2-2. SCHEMATIC DIAGRAM
r
IC BLOCK DIAGRAM
IC11 TA2061AF-EL
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
R-CH
IN
NF
VREF
L-CH
IN
AGC
T/C
AGC
ON/OFF
F0
ADJ
(R)
VCC
L-CH
OUT
ADJ
ON/OFF
AUTO
OFF
T/C
GND
F0
ADJ
(L)
SURROUND
ON/OFF
R-CH
OUT
LEVEL
DET.
LEVEL
DET.
AGC
MIX AMP
AGC
O.S.M.
Lout = L + K · (L­R)
Rout = R ­ K · (L­R)
PRE
EMPHASIS
PRE
EMPHASIS
VCO
VCO
BUFFER
BUFFER
VREF
TMR-IF330R
Note:
· 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
and 1/4 W or less unless otherwise
specified.
·
%
: indicates tolerance.
· U : B+ Line.
· H : adjustment for repair.
· Power voltage is dc 9 V and fed with regulated dc power
supply from external power voltage jack (J4).
· Voltages are dc with respect to ground under no-signal
conditions.
· Voltages are taken with a VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal produc-
tion tolerances.
· Signal path.
F
: AUDIO
J
: RF


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­ 7 ­
­ 8 ­
SECTION 3
EXPLODED VIEW
NOTE :
· -XX, -X mean standardized parts, so they
may have some difference from the original
one.
· Items marked " * "are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
· The mechanical parts with no reference
number in the exploded views are not
supplied.
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
4-995-958-01 WINDOW, LUMINOUS
2
4-995-956-01 CABINET (FRONT)
* 3
A-4542-507-A TX BOARD, COMPLETE
4
4-995-957-01 CABINET (REAR)
5
7-685-104-19 SCREW +P 2X6 TYPE2 NON-SLIT
6
4-984-729-01 FOOT, RUBBER
7
4-995-959-01 KNOB, CHANNEL
8
X-4949-961-1 CONNECTOR (2P) ASSY
1
2
3
4
5
5
6
7
8
NOTE :
· Due to standardization, replacements in the
parts list may be different from the parts
specified in the diagrams or the components
used on the set.
· -XX, -X mean standardized parts, so they
may have some difference from the original
one.
· RESISTORS
All resistors are in ohms
METAL : Metal-film resistor
METAL OXIDE :Metal oxide-film resistor
F : nonflammable
· Items marked " * "are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
· SEMICONDUCTORS
In each case, u :
µ , for example :
uA.... :
µ A.... , uPA.... : µ PA....
uPB.... :
µ PB.... , uPC.... : µ PC....
uPD.... :
µ PD....
· CAPACITORS
uF :
µ F
· COILS
uH :
µ H
When indicating parts by reference num-
ber, please include the board.
SECTION 4
ELECTRICAL PARTS LIST
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
*
A-4542-507-A TX BOARD, COMPLETE
******************
< CAPACITOR >
C1
1-126-163-11 ELECT
4.7uF
20%
50V
C2
1-126-786-11 ELECT
47uF
20%
16V
C3
1-163-031-11 CERAMIC CHIP
0.01uF
50V
C6
1-163-031-11 CERAMIC CHIP
0.01uF
50V
C7
1-126-163-11 ELECT
4.7uF
20%
50V
C8
1-126-382-11 ELECT
100uF
20%
16V
C11
1-124-464-11 ELECT
0.22uF
20%
50V
C12
1-163-031-11 CERAMIC CHIP
0.01uF
50V
C13
1-164-161-11 CERAMIC CHIP
0.0022uF 10%
100V
C14
1-163-245-11 CERAMIC CHIP
56PF
5%
50V
C51
1-124-464-11 ELECT
0.22uF
20%
50V
C53
1-164-161-11 CERAMIC CHIP
0.0022uF 10%
100V
C54
1-163-245-11 CERAMIC CHIP
56PF
5%
50V
C91
1-163-031-11 CERAMIC CHIP
0.01uF
50V
C93
1-163-031-11 CERAMIC CHIP
0.01uF
50V
C94
1-126-786-11 ELECT
47uF
20%
16V
C95
1-165-319-11 CERAMIC CHIP
0.1uF
50V
C96
1-126-382-11 ELECT
100uF
20%
16V
C97
1-165-319-11 CERAMIC CHIP
0.1uF
50V
C99
1-165-319-11 CERAMIC CHIP
0.1uF
50V
< DIODE >
D1
8-719-992-13 LED LIR5BE (INFRARED EMITTER)
D2
8-719-992-13 LED LIR5BE (INFRARED EMITTER)
D3
8-719-992-13 LED LIR5BE (INFRARED EMITTER)
D4
8-719-992-13 LED LIR5BE (INFRARED EMITTER)
D91
8-719-066-58 LED SM2512 (CHARGE)
< IC >
IC11
8-759-497-48 IC TA2061AF-EL
IC91
8-759-095-60 IC S-81250PG
< JACK >
J1
1-764-270-11 JACK,STEREO MINIATURE(DIA.3.5)
(AUDIO IN B)
J2
1-784-910-21 JACK, PIN (AUDIO IN A L-CH)
J3
1-784-910-11 JACK, PIN (AUDIO IN A R-CH)
J4
1-778-380-11 JACK,DC(POLARITY UNIFIED TYPE)
(DC IN 9V)
< TRANSISTOR >
Q11
8-729-119-76 TRANSISTOR 2SA1175-HFE
Q12
8-729-024-00 TRANSISTOR 2SC3377-QR
Q13
8-729-119-78 TRANSISTOR 2SC403SP-51
Q51
8-729-119-76 TRANSISTOR 2SA1175-HFE
Q52
8-729-024-00 TRANSISTOR 2SC3377-QR
Q53
8-729-119-78 TRANSISTOR 2SC403SP-51
Q91
8-729-422-57 TRANSISTOR UN4111
Q92
8-729-422-57 TRANSISTOR UN4111
Q93
8-729-029-72 TRANSISTOR DTC114YS-TP
< RESISTOR >
R1
1-216-133-00 RES,CHIP
3.3M
5%
1/10W
R2
1-216-041-00 METAL CHIP
470
5%
1/10W
R10
1-216-097-91 METAL CHIP
100K
5%
1/10W
R11
1-216-003-11 RES,CHIP
12
5%
1/10W
R12
1-216-025-91 METAL CHIP
100
5%
1/10W
R13
1-216-024-00 METAL CHIP
91
5%
1/10W
R14
1-216-338-11 RES,CHIP
30K
1%
1/10W
R15
1-216-596-11 RES,CHIP
2.7K
1%
1/10W
R16
1-216-053-00 METAL CHIP
1.5K
5%
1/10W
R17
1-216-041-00 METAL CHIP
470
5%
1/10W
R18
1-216-003-11 RES,CHIP
12
5%
1/10W
R19
1-216-053-00 METAL CHIP
1.5K
5%
1/10W
R50
1-216-097-91 METAL CHIP
100K
5%
1/10W
R51
1-216-003-11 RES,CHIP
12
5%
1/10W
R52
1-216-025-91 METAL CHIP
100
5%
1/10W
R53
1-216-024-00 METAL CHIP
91
5%
1/10W
R54
1-216-338-11 RES,CHIP
30K
1%
1/10W
R55
1-216-596-11 RES,CHIP
2.7K
1%
1/10W
R56
1-216-053-00 METAL CHIP
1.5K
5%
1/10W
R57
1-216-041-00 METAL CHIP
470
5%
1/10W
R58
1-216-003-11 RES,CHIP
12
5%
1/10W
R59
1-216-053-00 METAL CHIP
1.5K
5%
1/10W
R91
1-216-019-00 METAL CHIP
56
5%
1/10W
R92
1-216-021-00 METAL CHIP
68
5%
1/10W
R93
1-216-057-00 METAL CHIP
2.2K
5%
1/10W
R94
1-216-073-00 METAL CHIP
10K
5%
1/10W
R97
1-216-017-11 RES,CHIP
47
5%
1/10W
< VARIABLE RESISTOR >
RV1
1-241-767-21 RES, ADJ, CARBON 100K
(OSC FREQUENCY L-CH)
RV2
1-241-767-21 RES, ADJ, CARBON 100K
(OSC FREQUENCY R-CH)
< SWITCH >
S1
1-554-222-00 SWITCH, SLIDE (INPUT SELECT)
TX
TMR-IF330R
9-923-358-11
Sony Corporation
Personal A&V Products Company
98C027546-1
Printed in Hungary © 1998.3
Published by Quality Engineering Dept.
(Shibaura)