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SERVICE MANUAL
COPYRIGHT © 2006 Victor Company of Japan, Limited
No.MB531
2006/6
COMPACT COMPONENT SYSTEM
MB531
2006
6
DX-T99A,DX-T99EE,DX-T99US,DX-T99UW,
DX-T99UX,DX-T99UG,DX-T99UN,
DX-T77EE,DX-T77US,DX-T77UW,DX-T77UX,
DX-T77UY,DX-T77UG,DX-T77UN,
DX-T66EE,DX-T66US,DX-T66UW,DX-T66UX,
DX-T66UY,DX-T66UG,DX-T66UN
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
TABLE OF CONTENTS
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-62
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-65
SUPER VIDEO
CA-DXT66
SP-DXT99W
SP-DXT66F
SP-DXT66F
CA-DXT77
SP-DXT77S
SP-DXT77S
SP-DXT99W
SP-DXT99F
SP-DXT99F
SP-DXT77C
SUPER VIDEO
CA-DXT99
SP-DXT99S
SP-DXT99S
SP-DXT99W
SP-DXT99W
SP-DXT99F
SP-DXT99F
SP-DXT99C
SUPER VIDEO


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1-2 (No.MB531)
SPECIFICATION
DX-T99
Amplifier section
Output Power
FRONT SPEAKERS
150 W per channel, min. RMS, driven into 4
at 1 kHz with no more
than 10% total harmonic distortion.
CENTER SPEAKER
140 W per channel, min. RMS, driven into 6
at 1 kHz with no more
than 10% total harmonic distortion.
SURROUND SPEAKERS
130 W per channel, min. RMS, driven into 6
at 1 kHz with no more
than 10% total harmonic distortion. (for austraria and russia)
140 W per channel, min. RMS, driven into 6
at 1 kHz with no more
than 10% total harmonic distortion. (for asia)
SUBWOOFERS
150 W per channel, min. RMS, driven into 4
at 63 Hz with no more
than 10% total harmonic distortion. (for austraria and russia)
150 W per channel, min. RMS, driven into 4
at 1 kHz with no more
than 10% total harmonic distortion. (for asia)
Digital output
OPTICAL DIGITAL OUTPUT
-21 dBm to -15 dBm (660 nm ±30 nm)
Audio input sensitivity/
Impedance*
AUX
300 mV/47 k
MIC 1/2
3.0 mV/50 k
VIDEO OUT
Color system
NTSC/PAL selectable
VIDEO (composite)
1 V(p-p)/75
S-VIDEO
Y (luminance)
1 V(p-p)/75
C (chrominance, burst)
NTSC : 0.286 V(p-p)/75
PAL : 0.3 V(p-p)/75
COMPONENT
(Interlace/Progressive)
(Y)
1 V(p-p)/75
(PB/PR)
0.7 V(p-p)/75
Speaker Terminals
4
- 16 (front speakers/subwoofers)
6
- 16 (surround/center speakers)
Tuner section
FM tuning range
87.50 MHz - 108.00 MHz
AM (MW) tuning range
531 kHz - 1 710 kHz (for austraria)
531 kHz - 1 710 kHz (at 9 kHz) (for asia)
530 kHz - 1 710 kHz (at 10 kHz) (for asia)
522 kHz - 1 629 kHz (for russia)
Disc player section Playable disc
DVD Video/DVD Audio/CD/VCD/SVCD
CD-R/CD-RW (recorded in Audio CD/Video CD/Super Video CD for-
mats and MP3/WMA/JPEG/MPEG-1/MPEG-2/ASF/DivX files)
DVD-R (recorded in DVD Video format)
DVD-RW (recorded in DVD Video format or DVD-VR format)
Dynamic range
80 dB
Horizontal resolution
500 lines
Wow and flutter
Immeasurable
Cassette deck section Frequency response Normal (type I)
50 Hz - 14 000 Hz
Wow and flutter
0.15% (WRMS)
General
Power requirement
AC 110 V / AC 127 V / AC 220 V / AC 230 V - AC 240 V , (adjustable
with the voltage selector), 50 Hz / 60 Hz
Power consumption
335 W (at operation)
29 W (on standby)
Dimensions (W/H/D) (approx.)
185 mm
× 460 mm × 361 mm
Mass (approx.)
11.4 kg


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(No.MB531)1-3
DX-T77
Amplifier section
Output Power
FRONT SPEAKERS
150 W per channel, min. RMS, driven into 4
at 1 kHz with no more
than 10% total harmonic distortion.
CENTER SPEAKER
50 W per channel, min. RMS, driven into 6
at 1 kHz with no more
than 10% total harmonic distortion.
SURROUND SPEAKERS
50 W per channel, min. RMS, driven into 6
at 1 kHz with no more
than 10% total harmonic distortion.
SUBWOOFERS
150 W per channel, min. RMS, driven into 4
at 1kHz with no more
than 10% total harmonic distortion. (for asia)
150 W per channel, min. RMS, driven into 4
at 63 Hz with no more
than 10% total harmonic distortion. (for russia)
Digital output
OPTICAL DIGITAL OUTPUT
-21 dBm to -15 dBm (660 nm ±30 nm)
Audio input sensitivity/
Impedance*
AUX
300 mV/47 k
MIC 1/2
3.0 mV/50 k
VIDEO OUT
Color system
NTSC/PAL selectable
VIDEO (composite)
1 V(p-p)/75
S-VIDEO
Y (luminance)
1 V(p-p)/75
C (chrominance, burst)
NTSC : 0.286 V(p-p)/75
PAL : 0.3 V(p-p)/75
COMPONENT
(Interlace/Progressive)
(Y)
1 V(p-p)/75
(PB/PR)
0.7 V(p-p)/75
Speaker Terminals
4
- 16 (front speakers/subwoofers)
6
- 16 (surround/center speakers)
Tuner section
FM tuning range
87.50 MHz - 108.00 MHz
AM (MW) tuning range
531 kHz - 1 710 kHz (at 9 kHz) (for asia)
530 kHz - 1 710 kHz (at 10 kHz) (for asia)
522 kHz - 1 629 kHz (for russia)
Disc player section
Playable disc
DVD Video/DVD Audio/CD/VCD/SVCD
CD-R/CD-RW (recorded in Audio CD/Video CD/Super Video CD for-
mats and MP3/WMA/JPEG/MPEG-1/MPEG-2/ASF/DivX files)
DVD-R (recorded in DVD Video format)
DVD-RW (recorded in DVD Video format or DVD-VR format)
Dynamic range
80 dB
Horizontal resolution
500 lines
Wow and flutter
Immeasurable
Cassette deck section Frequency response Normal (type I)
50 Hz - 14 000 Hz
Wow and flutter
0.15% (WRMS)
General
Power requirement
AC 110 V / AC 127 V / AC 220 V / AC 230 V - AC 240 V , (adjustable
with the voltage selector), 50 Hz / 60 Hz
Power consumption
270 W (at operation)
25 W (on standby)
Dimensions (W/H/D) (approx.)
185 mm
× 460 mm × 361 mm
Mass (approx.)
11.4 kg


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1-4 (No.MB531)
DX-T66
Amplifier section
Output Power
FRONT SPEAKERS
150 W per channel, min. RMS, driven into 4
at 1 kHz with no more
than 10% total harmonic distortion.
SUBWOOFERS
150 W per channel, min. RMS, driven into 4
at 1kHz with no more
than 10% total harmonic distortion. (for asia)
150 W per channel, min. RMS, driven into 4
at 63 Hz with no more
than 10% total harmonic distortion. (for russia)
Digital output
OPTICAL DIGITAL OUTPUT
-21 dBm to -15 dBm (660 nm ±30 nm)
Audio input sensitivity/
Impedance*
AUX
300 mV/47 k
MIC 1/2
3.0 mV/50 k
VIDEO OUT
Color system
NTSC/PAL selectable
VIDEO (composite)
1 V(p-p)/75
S-VIDEO
Y (luminance)
1 V(p-p)/75
C (chrominance, burst)
NTSC : 0.286 V(p-p)/75
PAL : 0.3 V(p-p)/75
COMPONENT
(Interlace/Progressive)
(Y)
1 V(p-p)/75
(PB/PR)
0.7 V(p-p)/75
Speaker Terminals
4
- 16 (front speakers/subwoofers)
6
- 16 (surround/center speakers)
Tuner section
FM tuning range
87.50 MHz - 108.00 MHz
AM (MW) tuning range
531 kHz - 1 710 kHz (at 9 kHz) (for asia)
530 kHz - 1 710 kHz (at 10 kHz) (for asia)
522 kHz - 1 629 kHz (for russia)
Disc player section
Playable disc
DVD Video/DVD Audio/CD/VCD/SVCD
CD-R/CD-RW (recorded in Audio CD/Video CD/Super Video CD for-
mats and MP3/WMA/JPEG/MPEG-1/MPEG-2/ASF/DivX files)
DVD-R (recorded in DVD Video format)
DVD-RW (recorded in DVD Video format or DVD-VR format)
Dynamic range
80 dB
Horizontal resolution
500 lines
Wow and flutter
Immeasurable
Cassette deck section Frequency response Normal (type I)
50 Hz - 14 000 Hz
Wow and flutter
0.15% (WRMS)
General
Power requirement
AC 110 V / AC 127 V / AC 220 V / AC 230 V - AC 240 V , (adjustable
with the voltage selector), 50 Hz / 60 Hz
Power consumption
205 W (at operation)
23 W (on standby)
Dimensions (W/H/D) (approx.)
185 mm
× 460 mm × 361 mm
Mass (approx.)
10.8 kg


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(No.MB531)1-5
Speaker section
* Measured at 1 kHz, with tape recording signal 300 mV
Design and specifications are subject to change without notice.
Main Speakers
Type
3-Way 3-Speaker Bass Reflex (Magnetically-Shielded Type)
Speaker systems
Woofer
18 cm cone
× 1
Mid
6.5 cm cone
× 1
Tweeter
2 cm dome
× 1
Power handling capacity
150 W
Impedance
4
Frequency range
35 Hz - 25 000 Hz
Sound pressure level
85 dB/W·m
Dimensions (W/H/D) (approx.)
204 mm
× 460 mm × 273 mm
Mass (approx.)
5.2 kg each
Subwoofer
Type
1-Way Bass-Reflex (Magnetically-Shielded Type)
Speaker systems
20 cm cone
× 1
Power handling capacity
150 W
Impedance
4
Frequency range
35 Hz - 5 000 Hz
Sound pressure level
88 dB/W·m
Dimensions (W/H/D) (approx.)
238 mm
× 460 mm × 273 mm
Mass (approx.)
7.1 kg