Sony RM-VS10 Service Manual

RM-VS10
SERVICE MANUAL
Ver 1.0 2000. 06
• RM-VS10 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)
Remote Commander RM-VS10
Power source Four size AA (R6) batteries (not supplied)/
external DC 4.5 V power sources (AC power
adaptor not supplied) Maximum speaker output 0.8 W Battery life (for 5 mW speaker output usage)
Approx. 20 hours (using Sony battery R6)
Approx. 60 hours (using Sony alkaline battery
LR6)
SPECIFICATIONS
Remote control operation distance
Approx. 7 m* (23 ft.) (when facing directly toward the infrared receptor of your TV/analog cable box)
Dimensions 93 × 86 × 158 mm (3 3/4 × 3 1/2 × 6 1/4 in.)
(w × h × d)
Mass Approx. 355 g (13 oz.) (including batteries)
* 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
0
SECTION 1

DISASSEMBLY

Note : Follow the disassembly procedure in the numerical order given.
1-1. CASE (RX), LOWER
5 foot (A), rubber
1 lid, battery case
6 BTP 2.6x10
7 case (RX), lower
1-2. FE, RM AND RX BOARDS
4 BTP 2.6x10
3 BTP 2.6x1
case assy (RX), upper
2 knob, volume
5 Removal the solders.
3 B 2.6x8
0 RX board
6 Removal the solder.
4
7 RM board
2 B 2.6x8
1 filter (RX)
9 FE board
8 Removal the solder.
– 2 –
5
1-3. WIRING METHOD FOR RX BOARD
When assembling the RM-VS10, wire as shown in the figure below.
FE board
hole(boss)
install wire so as to be caught between the hole(boss) and C7
C75
RX board
– 3 –
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. Remote commander
2-1-1. Tuning adjustment
Method:
1. Supply 6 V to TP1 (6 V) from a stabilized power supply. (TP3 (GND) is connected to the ground.)
2. Input a signal of 1 kHz and –10 dB to the transmitter (TMR­IF10M) from an oscillator.
3. Connect a distortion factor meter between TP20 and TP21. Note:The speaker should be always connected to protect the
circuit.
4. Set the volume (VR51) to the maximum position.
5. Adjust T51 so that the reading on the distortion factor meter is minimum.
Connections and adjustment element:
Transmitter
Oscillator
AUDIO IN A
(TMR-IF10M)
1 kHz/
–10 dB
TP21
+
600
Distortion factor meter
+
RX BOARD (CONDUCTOR SIDE)
TP20
TP1
T51
L
R
TP3
VR51
6Vdc
Stabilized power supply
+
4
Loading...
+ 8 hidden pages