JVC Th C20 Instructions

							38
7Handling Discs
 Remove the disc from its case by holding it at 
the edge while pressing the center hole lightly.
 Do not touch the shiny surface of the disc or 
bend the disc.
 Put the disc back in its case after use to 
prevent warping.
 Be careful not to scratch the surface of the disc 
when placing it back in its case. 
 Avoid exposure to direct sunlight, temperature 
extremes and moisture.To clean the disc 
Wipe the disc with a soft cloth in a straight line 
from center to edge.
 DO NOT use any solvent — such as 
conventional record cleaner, spray, 
thinner or benzine — to clean the disc.
7Cleaning the system
 Stains on the system should be wiped off with a soft cloth. If the 
system is heavily stained, wipe it with a cloth soaked in water-
diluted neutral detergent and wrung well, then wipe clean with a 
dry cloth.
 Since the system may deteriorate in quality, become damaged or 
get its paint peeled off, be careful about the following.
-DO NOT wipe it with a hard cloth.
-DO NOT wipe it forcefully.
-DO NOT wipe it with thinner or benzine.
-DO NOT apply any volatile substance such as insecticides to it.
-DO NOT allow any rubber or plastic to remain in contact with it 
for a long time.
Maintenance
Troubleshooting
PROBLEM POSSIBLE CAUSE SOLUTION
Power does not come on. The power cord and/or system cord is not connected. Connect the power cord and system cord correctly. (See 
pages 10 and 11.)
The remote control does 
not work.The batteries are exhausted. Replace the batteries. (See page 7.)
Sunlight is shining directly on the remote sensor. Hide the remote sensor from direct sunlight.
No sound. The system cord and/or speaker cord is not connected. Check the connection. 
The audio cord is not connected to AUX IN (VCR) and/
or DIGITAL IN (DBS) correctly.Connect the cord correctly. (See page 11.)
An incorrect source has been selected. Select the correct source. (See page 15.)
No picture is displayed 
on the TV screen.The video cord is not connected correctly. Connect the cord correctly. (See page 10.)
The disc or file is not playable. Use a playable disc or file. (See pages 3 and 4.)
No picture is displayed 
on the TV screen, the 
picture is blurred, or the 
picture is divided into 
two parts.The scan mode is set to “480p” though the center unit is 
connected to the TV which does not support the 
progressive video input such as a conventional TV.Change the scan mode to “480i”. (See page 16.)
Video and audio are 
distorted.The disc is scratched or dirty. Replace or clean the disc.
A VCR is connected between the center unit and the 
TV.Connect the center unit and TV directly. (See page 10.)
The picture does not fit 
the TV screen.The monitor type is not set correctly. Set “MONITOR TYPE” properly. (See page 34.)
Hard to listen to 
broadcast because of 
noise.Antennas are disconnected. Reconnect the antennas correctly and securely. (See 
page 8.)
References
TH-C20-30[JC]5.book  Page 38  Thursday, January 12, 2006  11:29 AM
 
						

							39
7Center unit (XV-THC30/XV-THC20)
Audio section
Total Harmonic Distortion: 0.02 %
NOTE: This value is measured at System cord CONNECTOR for 
reference.
Digital input*1:
DIGITAL IN (DBS): –21 dBm to –15 dBm
(OPTICAL) (660 nm E30 nm)
*
1Corresponding to Linear PCM, Dolby Digital, and DTS Digital 
Surround (with sampling frequency — 32 kHz, 44.1 kHz, 
48 kHz)
Video section
Vi d e o  S y s t e m : N T S C
Horizontal Resolution: 500 lines
Signal-to-Noise Ratio: 64 dB
Video output level
Composite: 1.0 V(p-p)/75 Ω
S-video-Y: 1.0 V(p-p)/75 Ω
S-video-C: 0.286 V(p-p)/75 Ω
Component-Y: 1.0 V(p-p)/75 Ω
Component-P
B/PR: 0.7 V(p-p)/75 Ω
Video input sensitivity/Impedance (VCR IN)
Composite: 1.0 V(p-p)/75 Ω
S-video-Y: 1.0 V(p-p)/75 Ω
S-video-C: 0.286 V(p-p)/75 Ω
USB storage
USB specification:  Compatible with the USB 2.0 Full-
Speed
Compatible device: Mass Storage Class
Compatible file system: FAT16, FAT32
Bus power supply: Max. 500 mA
Tuner section
Tuning Range
FM: 87.5 MHz to 108.0 MHz
AM: 530 kHz to 1 710 kHz
General
Power Requirements: AC 120 V  , 60 Hz 
Power Consumption: 25 W (at operation)
0.6 W (in standby mode)
Dimensions (W M H M D):
400 mm M 85 mm M 316 mm
(15-3/4 inches M 3-3/8 inches M 
12-1/2 inches)
Mass: 3.8 kg (8.4 lbs)
7Subwoofer (SP-PWC30)
Amplifier section
Front/Center/Surround: 167 W per channel, RMS at 3 Ω at 
1 kHz, with 10 % total harmonic 
distortion.
Subwoofer: 167 W, RMS at 3 Ω at 100 Hz, with 
10 % total harmonic distortion.
Speaker section
Speaker unit: 16 cm (6-5/16 inches) Bass-reflex
Power Handling Capacity: 170 W
Impedance: 3 Ω
Frequency Range: 30 Hz to 200 Hz
Sound Pressure Level: 73 dB/
W·m
General
Power Requirements: AC 120 V  , 60 Hz 
Power Consumption: 160 W (at operation)
0 W (in standby mode)
Dimensions (W M H M D):
170 mm M 411 mm M 458 mm
(6-3/4 inches M 16-3/16 inches M 18-
1/16 inches)
Mass: 11.5 kg (25.4 lbs)
7Subwoofer (SP-PWC20)
Amplifier section
Front/Center/Surround: 135 W per channel, RMS at 4 Ω at 
1 kHz, with 10 % total harmonic 
distortion.
Subwoofer: 135 W, RMS at 4 Ω at 100 Hz, with 
10 % total harmonic distortion.
Speaker section
Speaker unit: 16 cm (6-5/16 inches) Bass-reflex
Power Handling Capacity: 140 W
Impedance: 4 Ω
Frequency Range: 30 Hz to 200 Hz
Sound Pressure Level: 74 dB/
W·m
General
Power Requirements: AC 120 V  , 60 Hz 
Power Consumption: 135 W (at operation)
0 W (in standby mode)
Dimensions (W M H M D):
170 mm M 411 mm M 458 mm
(6-3/4 inches M 16-3/16 inches M 18-
1/16 inches)
Mass: 11.5 kg (25.4 lbs)
Specifications
References 
TH-C20-30[JC]5.book  Page 39  Thursday, January 12, 2006  11:29 AM
 
						

							40
7Satellite Speakers — SP-XTHC30
Front speakers (SP-THC40F)
Type: 2-way 2-speaker Bass reflex type
 (Magnetically shielded Type)
Speaker: 8.0 cm (3-3/16 inches) cone M 1
1.5 cm (5/8 inches) dome M 1
Power Handling Capacity: 170 W
Impedance: 3 Ω
Frequency Range: 80 Hz to 20 000 Hz
Sound Pressure Level: 77 dB/
W·m
Dimensions (W M H M D):
104.5 mm M 139 mm M 101 mm
(4-1/8 inches M 5-1/2 inches M 
4inches)
Mass: 0.56 kg (1.3 lbs) each
Center speaker (SP-THC40C)
Type: 2-way 2-speaker Bass reflex type
 (Magnetically shielded Type)
Speaker: 8.0 cm (3-3/16 inches) cone M 1
1.5 cm (5/8 inches) dome M 1
Power Handling Capacity: 170 W
Impedance: 3 Ω
Frequency Range: 80 Hz to 20 000 Hz
Sound Pressure Level: 77 dB/
W·m
Dimensions (W M H M D):
137 mm M 105 mm M 104.5 mm
(5-7/16 inches M 4-3/16 inches M 4-
1/8 inches)
Mass: 0.57 kg (1.3 lbs)
Surround speakers (SP-THC40S)
Type: 1-way Bass reflex type
Speaker: 8.0 cm (3-3/16 inches) cone M 1
Power Handling Capacity: 170 W
Impedance: 3 Ω
Frequency Range: 80 Hz to 20 000 Hz
Sound Pressure Level: 70 dB/
W·m
Dimensions (W M H M D):
111.5 mm M 148 mm M 106.5 mm
(4-7/16 inches M 5-7/8 inches M 4-1/
4inches)
Mass: 0.56 kg (1.3 lbs) each
7Satellite Speakers — SP-XTHC20
Front speakers (SP-THC20F)
Type: 1-way Bass reflex type
 (Magnetically shielded Type)
Speaker: 8.0 cm (3-3/16 inches) cone M 1
Power Handling Capacity: 140 W
Impedance: 4 Ω
Frequency Range: 90 Hz to 20 000 Hz
Sound Pressure Level: 78 dB/
W·m
Dimensions (W M H M D):
106 mm M 119.5 mm M 102 mm
(4-3/16 inches M 4-3/4 inches M 4-1/
16 inches)
Mass: 0.55 kg (1.3 lbs) each
Center speaker (SP-THC20C)
Type: 1-way Bass reflex type
 (Magnetically shielded Type)
Speaker: 8.0 cm (3-3/16 inches) cone M 1
Power Handling Capacity: 140 W
Impedance: 4 Ω
Frequency Range: 90 Hz to 20 000 Hz
Sound Pressure Level: 78 dB/
W·m
Dimensions (W M H M D):
106 mm M 119.5 mm M 102 mm
(4-3/16 inches M 4-3/4 inches M 4-1/
16 inches)
Mass: 0.55 kg (1.3 lbs)
Surround speakers (SP-THC20S)
Type: 1-way Bass reflex type
Speaker: 8.0 cm (3-3/16 inches) cone M 1
Power Handling Capacity: 140 W
Impedance: 4 Ω
Frequency Range: 90 Hz to 20 000 Hz
Sound Pressure Level: 76 dB/
W·m
Dimensions (W M H M D):
106 mm M 119.5 mm M 102 mm
(4-3/16 inches M 4-3/4 inches M 4-1/
16 inches)
Mass: 0.63 kg (1.4 lbs) each
Designs & specifications are subject to change without notice.
References 
TH-C20-30[JC]5.book  Page 40  Thursday, January 12, 2006  11:29 AM
 
						

							41
TH-C20-30[JC]5.book  Page 41  Thursday, January 12, 2006  11:29 AM
 
						

							42
TH-C20-30[JC]5.book  Page 42  Thursday, January 12, 2006  11:29 AM
 
						

							EN
0106RYMMDWJSC © 2006 Victor Company of Japan, Limited
TH-C30/TH-C20 DVD DIGITAL THEATER SYSTEM
TH-C20-30[JC]5.book  Page 43  Thursday, January 12, 2006  11:29 AM