Jvc THD 7 Service Manual

Page 1

JVB
SERVICE MANUAL

DVD DIGITAL CINEMA SYSTEM

TH-D7B, TH-D7E, TH-D7EN,
TH-D7EV, TH-D7A, TH-D7US,
TH-D7UX, TH-D7UG

SP-THD7F

SP-THD7W

SP-THD7S

SP-THD7C

XV-TH D7
mm ,
dl é dis DU _ n vx n
H El IT E a, Mfiffij Radio Data System Digital Dired Prugressive Sum
B,E,EN,EV only

Lead free solder used in the board (material : Sn-Ag-Cu, melting point: 219 Centigrade)
Lead free solder used in the board (material : Sn-Cu, melting point: 230 Centigrade)

TABLE OF CONTENTS

1 PRECAUTION ......................................................................... 1-8
2 SPECIFIC SERVICE INSTRUCTIONS. . ............... .. . 1-12
3 DISASSEMBLY .......................................... 1-12
4 ADJUSTMENT ................................. 1-25
5 TROUBLESHOOTING . . .. ....................... 1-29
COPYRIGHT © 2007 Victor Company of Japan, Limited No_MBG38

2007/9

Page 2

B,E,EN,EV
Center unit

SPECIFICATION

Output power Front 140 W per channel RMS at 4 £2 at 1 kHz with 10 % total harmonic distortion.
Center 130 W RMS at 4 £2 at 1 kHz with 10 % total harmonic distortion.
Surround 130 W per channel RMS at 4 £2 at 1 kHz with 10 % total harmonic distortion.
Subwoofer 140 W RMS at 4 Q at 100 Hz with 10 % total harmonic distortion.
Audio section Digital Input*1 DIGITAL IN OPTICAL -21 dBm to -15 dBm (660 nm 130 nm)
COAXIAL 0.5V(p-p)/75Q
Video section Video System PAL
Horizontal Resolution 500 lines
Signal-to-Noise Ratio (Composite signal when RGB is selected) 54 dB
Video Output Level (AV-Scart) Composite video 1.0 V(p-p)/75 51
Y 1.0 V(p-p)/75 Q
C 0.3 V(p-p)/75 51
RGB 0.7 V(p-p)/75 0
(VIDEO OUT) Component (Y): 1.0 V(p-p)/75 Q
(PB/PR): O.7V(p-p)/750
Video Input Sensitivity/Impedance (VIDEO IN) Composite 1.0 V(p-p)/75 Q
S-video (Y): 1.0 V(p-p)/75 Q
(C): 0.3 V(p-p)/75 (2
HDMI HDMI Input (VIDEO 1 IN) PASS THROUGH (up to 225 MHz)
HDMI Output (MONITOR OUT) 576p/720p/1080i
USB storage USB Specification Compatible with USB 2.0 Full Speed
Compatible Device Mass Storage Class
Compatible File System FAT16, FAT32
Bus Power Supply Max. 500 mA
Tuner section Tuner 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

160 W (during operation)
1.0 W (in standby mode)

Dimensions (W X H X D)

435mm><115mm><270 mm

Mass

6.8 kg

*1 Corresponding to Linear PCM Dolby Digital and DTS Digital Surround (with sampling frequency - 32 kHz 441 kHz 48 kHz)

1-2 (No.MB638)