Sony TMR-IF10M Service Manual
TMR-IF10M
SERVICE MANUAL
Ver 1.0 2000. 06
• TMR-IF10M is the component model block one in RM-VS10TV.
COMPONENT MODEL NAME FOR RM-VS10TV
TRANSMITTER TMR-IF10M
REMOTE COMMANDER RM-VS10
US Model
General
Modulation system Frequency modulation
Carrier frequency 2.3 MHz (monaural)
Transmitter TMR-IF10M
Power source DC IN 9 V jack accepts power supplied
from the AC power adaptor for use on
120 V AC, 60 Hz voltage.
Input Internal microphone or phone jack/stereo
mini jack
SPECIFICATIONS
Signal connection range Maximum: 7 m* (23 ft.) (when the Commander
is facing directly toward the transmitter)
Dimensions 130 × 38 × 70 mm (5 1/8 × 1 1/2 × 2 7/8 in.)
(w × h × d)
Mass Approx. 100 g (4 oz.)
* The distance may vary depending on using conditions and
the manufacturer and equipment that is used.
Design and specifications are subject to change without
notice.
Notes on Chip Component Replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
SPEAKER REMOTE
COMMANDER SYSTEM
r
SECTION 1
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
1-1. MICROPHONE, ELECTRET CONDENSER (MIC1)
1 sheet, microphone fixed
2 B 2x6
3 case (A), microphone
5 microphone, electret condense
4 case (B), microphone
SECTION 2
ELECTRICAL ADJUSTMENTS
Note:
1. The adjustments is performed in the order that they are listed.
2. When adjusting the remote commander, the transmitter is used
for adjustment.
3. 0 dB=1.0 V
2-1. Transmitter
2-1-1. Oscillating frequency adjustment
Method:
1. Supply 9 V to the DC jack (J1) from a stabilized power supply.
2. Perform this adjustment without signal.
3. Connect a frequency counter between TP17 (RF) and TP18
(GND).
4. Adjust L1 so that the reading on the counter is 2,300 kHz.
Specified V alue:
Frequency counter
2,295 to 2,305 kHz
5. Connect an oscilloscope between TP17 (RF) and TP18 (GND).
6. V erify that the Vp-p v alue of the wav eform on the oscilloscope is
1.2 V or more.
Connections and adjustment element:
Stabilized power suppy
9Vdc
J1
L1
+
–
– TX BOARD
(CONDUCTOR SIDE) –
R32
TP17
TP18
+
Frequency counter
–
and
Oscilloscope
– 2 –
SECTION 3
DIAGRAMS
TMR-IF10M
3-1. BLOCK DIAGRAM
TX BOARD
J2
R
A
L
J3
AUDIO
IN
J4
B
MIC1
04
NOR
IC1
9
H
10 8
L
11
2 3 8
5
ALC AMP
IC2
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for Schematic Diagram:
INFRARED
EMITTER
7
OSC
L1, Q2
L1
OSCILLATION
FREQUENCY
LED DRIVER
Q3, 4
SW1
POWER
ON OFF
D4-7
B+
• 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 Ω and 1/
specified.
4
W or less unless otherwise
• % : indicates tolerance.
f
•
: internal component.
• C : panel designation.
• 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.
• Voltage is dc with respect to ground under no-signal
REG
B+
Q1
J1
DC IN 9V
!
(detuned) condition.
no mark : POWER on
• Voltages are tak en with a V OM (Input impedance 10 MΩ).
Voltage var iations may be noted due to normal production tolerances.
• Signal path.
F : Analog
J : RF
for Printed Wiring Boards:
• X : parts extracted from the component side.
f
• Signal path
•
• b : Pattern from the side which enables seeing.
: internal component.
: ANALOG
: RF
– 3 – – 4 –
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