Sony TMR-IF10M Service Manual

TMR-IF10M

SERVICE MANUAL

US Model

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

SPECIFICATIONS

General		Signal connection range	Maximum: 7 m* (23 ft.) (when the Commander
Modulation system	Frequency modulation		is facing directly toward the transmitter)
Carrier frequency	2.3 MHz (monaural)	Dimensions	130 ×	38 × 70 mm (5 1/8 × 1 1/2 × 2 7/8 in.)
Transmitter TMR-IF10M			(w ×	h × d)
		Mass	Approx. 100 g (4 oz.)
Power source	DC IN 9 V jack accepts power supplied
	from the AC power adaptor for use on	* The distance may vary depending on using conditions and
	120 V AC, 60 Hz voltage.	the manufacturer and equipment that is used.
Input	Internal microphone or phone jack/stereo
	mini jack	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

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 condenser

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 Value:

Frequency counter

2,295 to 2,305 kHz

5.Connect an oscilloscope between TP17 (RF) and TP18 (GND).

6.Verify that the Vp-p value of the waveform on the oscilloscope is

1.2 V or more.

Connections and adjustment element:

Stabilized power suppy

9Vdc +

–

– TX BOARD

(CONDUCTOR SIDE) –

J1

L1

TP17 R32 TP18

+

–

Frequency counter and

Oscilloscope

– 2 –

		SECTION 3
		DIAGRAMS
3-1. BLOCK DIAGRAM
TX BOARD		NOR
						ALC AMP				INFRARED
		IC1
						IC2
										EMITTER	B+
J2	9	H								D4-7
							OSC		LED DRIVER
R	10	8	2	3	8	7
							L1, Q2		Q3, 4
	11	L
A
							L1
L							OSCILLATION
J3							FREQUENCY
AUDIO									SW1
IN					5
									POWER
J4
									ON	OFF
B
								B+	REG		J1
									Q1		DC IN 9V
											!
MIC1
04

• Signal path

: ANALOG

: RF

TMR-IF10M

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:

•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 1/4 W or less unless otherwise specified.

•% : 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 (detuned) condition.

no mark : POWER on

•Voltages are taken with a VOM (Input impedance 10 MΩ ). Voltage variations 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 : internal component.

•b: Pattern from the side which enables seeing.

– 3 –

– 4 –