Yamaha VS-10 User manual

VS-10/NX-SW10
Home Theater System
VS-10
Front Speaker
NX-VS10M
Rear Speaker
NX-VS10E Rear Speaker NX-VS10E
Center Speaker
NX-VS10C
NX-SW10 is composed of SW-VS10, NX-VS10C and NX-VS10E.
VS-10 is composed of VS-10 and NX-VS10M.
Front Speaker
NX-VS10M Subwoofer SW-VS10
SERVICE MANUAL
HOME THEATER SYSTEM
VS-10/NX-SW10
100733
■CONTENTS
TO SERVICE PERSONNEL .......................................... 1
REMOTE CONTROL TRANSMITTER PANELS........... 1
FRONT/REAR PANELS ............................................ 2~4
SPECIFICATIONS.......................................................... 5
DIMENSIONS ................................................................. 6
INTERNAL VIEW ........................................................... 7
VS-10 DISASSEMBLY PROCEDURES ........................ 7
P. C. B. OPERATION CHECK....................................... 8
SW-VS10 DISASSEMBLY PROCEDURES .................. 9
TEST PROGRAM MODE (VS-10) ......................... 10~11
DSP DIAG MODE (Self-diagnosis) ...................... 12~18
IC DATA ................................................................. 19~25
BLOCK DIAGRAM................................................. 26~29
PRINTED CIRCUIT BOARD .................................. 30~41
SCHEMATIC DIAGRAM ........................................ 42~46
PARTS LIST........................................................... 47~63
DISPLAY DATA ........................................................... 64
REMOTE CONTROL TRANSMITTER .................. 65~66
IMPORTANT NOTICE
This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.
It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are already known and understood by the users,
and have therefore not been restated.
WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury, destruction of expensive
components, and failure of the product to perform as specified. For these reasons, we advise all YAMAHA product owners that any service required
should be performed by an authorized YAMAHA Retailer or the appointed service representative.
IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or recognition of any applicable
technical capabilities, or establish a principle-agent relationship of any form.
The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and service departments of YAMAHA are
continually striving to improve YAMAHA products. Modifications are, therefore, inevitable and specifications are subject to change without notice or obligation to
retrofit. Should any discrepancy appear to exist, please contact the distributor's Service Division.
WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the
ground buss in the unit (heavy gauge black wires connect to this buss).
IMPORTANT: Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.
VS-10/NX-SW10
P.O.Box 1, Hamamatsu, Japan

VS-10/NX-SW10
1
WALL
OUTLET EQUIPMENT UNDER TEST
AC LEAKAGE
TESTER OR
EQUIVALENT
INSULATING
TABLE
WARNING: CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and /or plastic
(where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency
(and possibly other entities) to cause cancer and/or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REA-
SON WHATSOEVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose
eyes to solder/flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands before
handling food.
■TO SERVICE PERSONNEL
1. Critical Components Information
Components having special characteristics are marked s
and must be replaced with parts having specifications equal
to those originally installed.
2. Leakage Current Measurement (For 120V Models Only)
When service has been completed, it is imperative to verify
that all exposed conductive surfaces are properly insulated
from supply circuits.
●Meter impedance should be equivalent to 1500 ohm shunted
by 0.15µF.
●Leakage current must not exceed 0.5mA.
●Be sure to test for leakage with the AC plug in both polarities.
■REMOTE CONTROL TRANSMITTER PANELS
U, C, A models B, G models

VS-10/NX-SW10
2
■FRONT/REAR PANELS
●VS-10
U, C models
A model

VS-10/NX-SW10
3
B, G model
●NX-VS10M
●SW-VS10 (Subwoofer) U, C models

VS-10/NX-SW10
4
A model B, G model
●NX-VS10C (Center Speaker) ●NX-VS10E (Rear Speaker)

VS-10/NX-SW10
5
■SPECIFICATIONS
■VS-10 (Center Unit)
●Audio Section
Minimum RMS Output Power per Channel
1kHz, 10% THD, 6Ω25W + 25W
Signal to Noise Ratio (IHF-A-Network)
VIDEO1 90dB
Total Harmonic Distortion (1kHz, 10W/6Ω)
VIDEO1 0.07%
Input Sensitivity / Impedance
VIDEO1 200mV / 50kΩ
●Video Section
Signal Level 1V p-p / 75Ω
●General
Power Supply
U, C models AC120V, 60Hz
B, G models AC230V, 50Hz
A model AC240V, 50Hz
Power Consumption 60W
Standby Power Consumption
Reference data 5.5W
Dimensions (W x H x D)
Only VS-10 302 x 82 x 300mm
(11-7/8" x 3-1/4" x 11-13/16")
Setting Vertically (Include Stand and Pads) 124 x 302.5 x 300mm
(4-7/8" x 11-15/16" x 11-13/16")
Setting Horizontally (Include Pads) 302 x 88.5 x 300mm
(11-7/8" x 3-1/2" x 11-13/16")
Weight
Only VS-10 4.7kg (10lbs. 6oz.)
Finish Black, Silver
Accessories Remote Control Transmitter x1
RCA Pin Cable (Video x1, Audio x1)
Stand x1
Pads (Side x1 and Bottom x1)
Batteries x 4
●Speaker Section (NX-VS10M)
Type 2 way Bass Reflex (Magnetic-Shielding Type)
Speakers 10cm Cone, 2cm Super Tweeter
Maximum Power Handling Capacity 25W
Impedance 6Ω
Dimensions (W x H x D) 125 x 185 x 145mm
(4-15/16" x 7-5/16" x 5-11/16")
Weight
Only NX-VS10M 1.4kg (3lbs. 1oz.)
■SW-VS10 (Subwoofer)
Minimum RMS Output Power per Channel
SW-VS10: 1kHz, 10% THD, 5Ω50W
NX-VS10C: 1kHz, 10% THD, 6Ω40W
NX-VS10E: 1kHz, 10% THD, 6Ω25W + 25W
Type Advanced Active Servo Tecnology type
Speakers 16cm Cone (Magnetic-Shielding Type)
Maximum Power Handling Capacity 50W
Impedance 5Ω
Power Supply
U, C models AC120V, 60Hz
B, G models AC230V, 50Hz
A model AC240V, 50Hz
Power Consumption
U, C models 95W
B, G, A models 90W
Standby Power Consumption
Reference data 0W
Dimensions (W x H x D) 200 x 395 x 400mm
(7-7/8" x 15-9/16" x 15-3/4")
Weight 10.6kg (23lbs. 6oz.)
Accessories Wall Bracket x2
Bracket x2
Accessory Cord 4m x1, 15m x 2
DIN Cord x1
Pan Head Screw-sems x2
Wing Bolts x2
Fastener Tape x1set
n NX-VS10C (Center Speaker)
Type Bass Reflex (Magnetic-Shielding Type)
Speakers 8cm Cone x 2
Maximum Power Handling Capacity 40W
Impedance 6Ω
Dimensions (W x H x D) 240 x 100 x 145mm
(9-7/16" x 3-15/16" x 5-11/16")
Weight 1.7kg (3lbs. 12oz.)
■NX-VS10E (Rear Speaker)
Type Acoustic Suspension (Magnetic-Shielding Type)
Speakers 8cm Cone
Maximum Power Handling Capacity 30W
Impedance 6Ω
Dimensions (W x H x D) 100 x 140 x 112mm
(3-15/16" x 5-1/2" x 4-3/8")
Weight 0.68kg (1lbs. 8oz.)
* Specifications subject to change without notice.
U ........ U.S.A. model C .... Canada model
G........ Europe model B .... British model
A ........ Australia model
*TruBass and the symbol are trademarks of SRS Labs,
inc. in the United States and selected foreign countries.
TruBass technology is incorporated under license from SRS
Labs, inc.
* Manufactured under license from Dolby Laboratories.
"Dolby", "Dolby Digital", "Pro Logic", and the double-D symbol
Vare trademarks of Dolby Laboratories. © 1992-1997 Dolby
Laboratories. All rights reserved.
* Manufactured under license from Digital Theater Systems,
Inc. US Pat. No. 5,451,942 and other world-wide patents
issued and pending. "DTS", "DTS Digital Surround", are
trademarks of Digital Theater Systems, Inc. copyright 1996
Digital Theater Systems, inc. All rights reserved.

VS-10/NX-SW10
Unit : mm (inch)
100 (3–15/16") 112 (4–3/8")
140 (5–1/2")
240 (9-7/16") 145 (5-11/16")
100 (3-15/16")
Unit : mm (inch)
200 (7-7/8") 400 (15-3/4")
395 (15-9/16")
Unit : mm (inch)
125 (4-15/16") 145 (5-11/16")
185 (7-5/16")
Unit : mm (inch)
302 (11-7/8")
300 (11-13/16")88.5 (3-1/2")
82 (3-1/4")
Unit : mm (inch)
■DIMENSIONS
6
●VS-10 ●NX-VS10M
●SW-VS10 (Subwoofer)
●NX-VS10C (Center Speaker) ●NX-VS10E (Rear Speaker)

VS-10/NX-SW10
3
3
4
4
4
4
4
4
4
4
4
5
5
5
5
5
5
1
1
1
2
1
1234
56 7 8
7
(Remove parts in the order as numbered below.)
1. Removal of Side Cover
a. Remove 4 screws (1). (Fig. 1)
b. Remove the Side Cover.
2. Removal of Bottom Cover
a. Remove the screw (2) in Fig. 1, and 2 screws (3) in
Fig. 2 to remove the heat sink cover.
b. Remove 9 screws (4), and the Bottom Cover can be
removed rearward. (Fig. 2)
3. Removal of Top Cover
a. Remove 6 screws (5). (Fig. 3)
b. Remove the Top Cover. Fig. 1
Fig. 2
■INTERNAL VIEW
1MAIN P.C.B. (3)
2MAIN P.C.B. (4)
3MAIN P.C.B. (1)
4MAIN P.C.B. (2)
5DIGITAL P.C.B. (3)
6MAIN P.C.B. (5)
7DIGITAL P.C.B. (2)
8DIGITAL P.C.B. (1)
■VS-10 DISASSEMBLY PROCEDURES
Fig. 3

VS-10/NX-SW10
Extension flexible
flat cable
CB1
GND
GND
CB303
CB311
GND
CB302
W306
CB305
GND
99
9
9
8
8
8
0
0
0
6
6
6
7
7
7
7
CB1
CB3
CB2
8
Fig. 5
Fig. 6 Fig. 7
Fig. 4
■P.C.B. OPERATION CHECK
Preparation before operation check
a. Remove 3 screws (6). (Fig. 4)
b. Remove the DSP Top Cover.
c. Disconnect the flexible flat cable (CB1) from DIGITAL
P.C.B. (1). (Fig. 4)
d. Remove 4 screws (7) and then remove DIGITAL
P.C.B. (1) from the DSP Bottom Cover. (Fig. 4)
e. Remove 3 screws (8). (Fig. 5)
f. Remove the DSP Bottom Cover.
g. Remove 4 screws (9). (Fig. 6)
h. Remove 3 screws (0). (Fig. 5)
i. Remove MAIN P.C.B. (1) from the main chassis.
j. Disconnect the flexible flat cable (CB305) from MAIN
P.C.B. (1).
k. Connect CB305 of MAIN P.C.B. (1) and CB1 of
DIGITAL P.C.B. (1) by using an extension cable
(5P:MF105250).
l. Place MAIN P.C.B. (1) upright with a cloth spread on
the main chassis. (Fig. 7)
m.Tie one end of a string through the screw hole in the
rear panel and the other end through the screw hole in
the main chassis to secure them.
n. Connect GND (x4 in Fig. 6, 7) to the main chassis by
using a lead wire.
CAUTION: The grounding point must be connected to
main chassis to keep the circuit in normal
operation when MAIN P.C.B. (1) and DIGITAL
P.C.B. (1) are removed from main chassis.

VS-10/NX-SW10
Amplifier Unit
A
Grill Assembly
9
■SW-VS10 DISASSEMBLY PROCEDURES
(Remove parts in the order as numbered below.)
1. Removal of Grille Assembly.
a. Insert the tip of flat tip (-) screwdriver to the slot on the
bottom.
Push up the Grille Assembly by applying force to the
screwdriver. (Fig. 8).
b. Keep pushing up the Grille Assembly gradually until it
can be removed.
* The Grille Assembly is fixed securely at 6 dowels.
When removing it, use care not to cause a scratch
or any damage to the main unit. When reinstalling
it, apply quick-drying type bond to the dowels of the
Grille Assembly and fit it in place securely. (If it is
only pushed in, it will come off easily.)
2. Removal of Amplifier Unit
a. Remove 14 screws (A) and then remove the Amplifier
Unit. (Fig. 9)
Fig. 9
Fig. 8