SERVICE MANUAL
COPYRIGHT © 2004 Victor Company of Japan, Limited
No.MB236
2004/6
DVD DIGITAL CINEMA SYSTEM
MB236
2004
6
TH-S9,TH-S8,TH-S7
TABLE OF CONTENTS
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30
Area suffix
B ------------------------------ U.K.
E ---------- Continental Europe
EN ----------- Northern Europe
EV ------------- Eastern Europe
TH-S9
Area suffix
B ------------------------------ U.K.
E ---------- Continental Europe
EN ----------- Northern Europe
TH-S8
Area suffix
E ---------- Continental Europe
EN ----------- Northern Europe
EV ------------- Eastern Europe
TH-S7
TH-S9
SD card
TH-S8
TH-S7
XV-THS7
SP-PWS7
SP-THS7F
SP-TH7S
SP-THS9C
XV-THS9
SP-PWS9
SP-THS9F
SP-THS9S
SP-THS9C
XV-THS8
SP-PWS8
SP-THS9F
SP-THS9S
SP-THS9C
1-2 (No.MB236)
SPECIFICATION
Center unit (XV-THS9/XV-THS7)
*1: This value is measured at System cord CONNECTOR for reference.
*2: Corresponding to Linear PCM, Dolby Digital, and DTS Digital Surround (with sampling frequency - 32 kHz, 44.1 kHz, 48 kHz)
Center unit (XV-THS8)
*1: This value is measured at System cord CONNECTOR for reference.
*2: Corresponding to Linear PCM, Dolby Digital, and DTS Digital Surround (with sampling frequency - 32 kHz, 44.1 kHz, 48 kHz)
Audio section
Total Harmonic Distortion*1
0.02%
Digital input*2
DIGITAL IN (OPTICAL) -21 dBm to -15 dBm (660 nm E30 nm)
Video section
Video System
PAL
Horizontal Resolution
500 lines
Signal-to-Noise Ratio
(Composite signal when "RGB" is selected)
64 dB
Video output level Composite
1.0 V(p-p)/75
S-video-Y
1.0 V(p-p)/75
S-video-C
0.3 V(p-p)/75
Component-Y
1.0 V(p-p)/75
Component-PB/PR
0.7 V(p-p)/75
RGB
0.7 V(p-p)/75
Tuner section
Tuning Range
FM
87.50 MHz to 108.00 MHz
AM (MW)
522 kHz to 1 629 kHz
General
Power Requirements
AC 230 V , 50 Hz
Power Consumption
18 W (at operation) 2.0 W (in standby mode)
Dimensions (W
× H × D)
435 mm
× 58 mm × 319 mm
Mass
3.5 kg
Audio section
Total Harmonic Distortion*1
0.02%
Digital input*2
DIGITAL IN (OPTICAL) -21 dBm to -15 dBm (660 nm E30 nm)
Video section
Video System
PAL
Horizontal Resolution
500 lines
Signal-to-Noise Ratio
(Composite signal when "RGB" is selected)
64 dB
Video output level
Composite
1.0 V(p-p)/75
S-video-Y
1.0 V(p-p)/75
S-video-C
0.3 V(p-p)/75
Component-Y
1.0 V(p-p)/75
Component-PB/PR
0.7 V(p-p)/75
RGB
0.7 V(p-p)/75
Tuner section
Tuning Range
FM
87.50 MHz to 108.00 MHz
AM (MW)
522 kHz to 1 629 kHz
General
Power Requirements
AC 230 V , 50 Hz
Power Consumption
18 W (at operation) 2.0 W (in standby mode)
Dimensions (W
× H × D)
435 mm
× 57 mm × 319 mm
Mass
3.0 kg
(No.MB236)1-3
Subwoofer (SP-PWS9/SP-PWS7)
Subwoofer (SP-PWS8)
Satellite Speakers
Designs & specifications are subject to change without notice.
Amplifier section
Front/Center/Surround
80 W per
hannel, RMS at 6 (Center/Surround)/120 W per hannel, RMS at 4
(Front) at 1 kHz, with 10 % total harmonic distortion.
Subwoofer
120 W, RMS at 4
at 100 Hz, with 10 % total harmonic distortion.
Speaker section
Speaker unit
16 cm Bass-reflex, Magnetically Shielded
Frequency Range
30 Hz to 200 Hz
General
Power Requirements
AC 230 V , 50 Hz
Power Consumption
110 W (at operation) 0 W (in standby mode)
Dimensions (W
× H × D) 170 mm × 412 mm × 444 mm
Mass
12.0 kg
Amplifier section
Front/Center/Surround
80 W per
hannel, RMS at 6 (Center/Surround)/120 W per hannel, RMS at 4
(Front) at 1 kHz, with 10 % total harmonic distortion.
Subwoofer
120 W, RMS at 4
at 100 Hz, with 10 % total harmonic distortion.
Speaker section
Speaker unit
16 cm Bass-reflex, Magnetically Shielded
Frequency Range
30 Hz to 200 Hz
General
Power Requirements
AC 230 V , 50 Hz
Power Consumption
110 W (at operation) 0 W (in standby mode)
Dimensions (W
× H × D) 170 mm × 412 mm × 444 mm
Mass
12.0 kg
Front speakers
(SP-THS9F)
Speakers
5.5 cm
× 2, 3.0 cm Bass-reflex, Magnetically Shielded
Power Handling Capacity 120 W
Impedance
4
Frequency Range
95 Hz to 40 kHz
Dimensions (W
× H × D) 250 mm × 1 103 mm × 250 mm
Mass
3.67 kg
Surround speakers
(SP-THS9S)
Speakers
5.5 cm
× 2 Bass-reflex, Magnetically Shielded
Power Handling Capacity 80 W
Impedance
6
Frequency Range
90 Hz to 30 kHz
Dimensions (W
× H × D) 250 mm × 1 103 mm × 250 mm
Mass
3.77 kg
Center speaker
(SP-THS9C)
Speakers
5.5 cm
× 2, 3.0 cm Bass-reflex, Magnetically Shielded
Power Handling Capacity 80 W
Impedance
6
Frequency Range
90 Hz to 40 kHz
Dimensions (W
× H × D) 209 mm × 85 mm × 92 mm
Mass
0.87 kg
1-4 (No.MB236)
SECTION 1
PRECAUTION
1.1
Safety Precautions
(1) This design of this product contains special hardware and
many circuits and components specially for safety purpos-
es. For continued protection, no changes should be made
to the original design unless authorized in writing by the
manufacturer. Replacement parts must be identical to
those used in the original circuits. Services should be per-
formed by qualified personnel only.
(2) Alterations of the design or circuitry of the product should
not be made. Any design alterations of the product should
not be made. Any design alterations or additions will void
the manufacturers warranty and will further relieve the
manufacture of responsibility for personal injury or property
damage resulting therefrom.
(3) Many electrical and mechanical parts in the products have
special safety-related characteristics. These characteris-
tics are often not evident from visual inspection nor can the
protection afforded by them necessarily be obtained by us-
ing replacement components rated for higher voltage, watt-
age, etc. Replacement parts which have these special
safety characteristics are identified in the Parts List of Ser-
vice Manual. Electrical components having such features
are identified by shading on the schematics and by (
) on
the Parts List in the Service Manual. The use of a substitute
replacement which does not have the same safety charac-
teristics as the recommended replacement parts shown in
the Parts List of Service Manual may create shock, fire, or
other hazards.
(4) The leads in the products are routed and dressed with ties,
clamps, tubings, barriers and the like to be separated from
live parts, high temperature parts, moving parts and/or
sharp edges for the prevention of electric shock and fire
hazard. When service is required, the original lead routing
and dress should be observed, and it should be confirmed
that they have been returned to normal, after reassem-
bling.
(5) Leakage shock hazard testing
After reassembling the product, always perform an isola-
tion check on the exposed metal parts of the product (an-
tenna terminals, knobs, metal cabinet, screw heads,
headphone jack, control shafts, etc.) to be sure the product
is safe to operate without danger of electrical shock.Do not
use a line isolation transformer during this check.
· Plug the AC line cord directly into the AC outlet. Using a
"Leakage Current Tester", measure the leakage current
from each exposed metal parts of the cabinet, particular-
ly any exposed metal part having a return path to the
chassis, to a known good earth ground. Any leakage cur-
rent must not exceed 0.5mA AC (r.m.s.).
· Alternate check method
Plug the AC line cord directly into the AC outlet. Use an
AC voltmeter having, 1,000
per volt or more sensitivity
in the following manner. Connect a 1,500
10W resistor
paralleled by a 0.15
µF AC-type capacitor between an ex-
posed metal part and a known good earth ground.
Measure the AC voltage across the resistor with the AC
voltmeter.
Move the resistor connection to each exposed metal
part, particularly any exposed metal part having a return
path to the chassis, and measure the AC voltage across
the resistor. Now, reverse the plug in the AC outlet and
repeat each measurement. Voltage measured any must
not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5
mA AC (r.m.s.).
1.2
Warning
(1) This equipment has been designed and manufactured to
meet international safety standards.
(2) It is the legal responsibility of the repairer to ensure that
these safety standards are maintained.
(3) Repairs must be made in accordance with the relevant
safety standards.
(4) It is essential that safety critical components are replaced
by approved parts.
(5) If mains voltage selector is provided, check setting for local
voltage.
1.3
Caution
Burrs formed during molding may be left over on some parts
of the chassis.
Therefore, pay attention to such burrs in the case of pre-
forming repair of this system.
1.4
Critical parts for safety
In regard with component parts appearing on the silk-screen
printed side (parts side) of the PWB diagrams, the parts that are
printed over with black such as the resistor (
), diode (
)
and ICP (
) or identified by the "
" mark nearby are critical
for safety. When replacing them, be sure to use the parts of the
same type and rating as specified by the manufacturer.
(This regulation dose not Except the J and C version)
Good earth ground
Place this
probe on
each exposed
metal part.
AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)
1500
10W
0.15 F AC TYPE
(No.MB236)1-5
1.5 Safety Precautions (U.K only)
(1) This design of this product contains special hardware and many circuits and components specially for safety purposes. For con-
tinued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replace-
ment parts must be identical to those used in the original circuits.
(2) Any unauthorised design alterations or additions will void the manufacturer's guarantee; furthermore the manufacturer cannot
accept responsibility for personal injury or property damage resulting therefrom.
(3) Essential safety critical components are identified by (
) on the Parts List and by shading on the schematics, and must never
be replaced by parts other than those listed in the manual. Please note however that many electrical and mechanical parts in
the product have special safety related characteristics. These characteristics are often not evident from visual inspection. Parts
other than specified by the manufacturer may not have the same safety characteristics as the recommended replacement parts
shown in the Parts List of the Service Manual and may create shock, fire, or other hazards.
(4) The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts,
high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is
required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to
normal, after re-assembling.
1.5.1 Warning
(1) Service should be performed by qualified personnel only.
(2) This equipment has been designed and manufactured to meet international safety standards.
(3) It is the legal responsibility of the repairer to ensure that these safety standards are maintained.
(4) Repairs must be made in accordance with the relevant safety standards.
(5) It is essential that safety critical components are replaced by approved parts.
(6) If mains voltage selector is provided, check setting for local voltage.
Burrs formed during molding may be left over on some parts of the chassis. Therefore,
pay attention to such burrs in the case of preforming repair of this system.