Sony TMR-IF330R Service Manual

Q Q
3 7 6 3 1 5 1 5 0

SERVICE MANUAL

TMR-IF330R is the component model block one in MDR-IF330RK.
COMPONENT MODEL NAME FOR MDR-IF330RK
Cordless Stereo Headphones MDR-IF330R
Transmitter TMR-IF330R
T E
L 1 3 9 4 2 2 9 6 5 1 3
General
Modulation system
Carrier frequency
Frequency response 18 – 22,000Hz
Power source
UK model
AEP model
Audio input
Dimensions
Mass
Design and specifications are subject to change without notice.
w w w
.
MICROFILM
TMR-IF330R
AEP Model
SPECIFICATIONS
Frequency modulation
Right 2.8MHz
Left 2.3MHz
DC IN 9V jack accepts power supplied from the AC
power adaptor for use on the following voltages:
Operating voltage
230 - 240V AC,50Hz
220 - 230V AC,50Hz
Phono jacks/stereo mini jack
Approx. 106 x 217 x 110mm
(4 1 / x 8 5 / x 4 3 / in.) (w/h/d)
4 8 8
Approx. 125g (4.4oz.)
INFRARED TRANSMITTER
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8
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
UK Model
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:
2.3MHz ±2kHz
L-ch RV1
2.8MHz ±2kHz
R-ch RV2
Connection and Adjustments Location :
[TX BOARD] (Conductor side)
Q Q
regulated dc
3 7 6 3
power suppluy
9 Vdc
[TX BOARD] (Component side)
u 1 6 3
.
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SECTION 1
ELECTRICAL ADJUSTMENTS
2 4
9 9 8
1 5 1 5 0 8 9 2 4
TP
(CL4)
TP
(CL54)
RV2 RV1
(R-ch) (L-ch)
Oscillating frequency
adjustment
m
c o
– 2 –
2
9 9
frequency counter
9 8 2 9 9
TP(CL4)
(L-ch)
TP (CL54)
(R-ch)