SERVICE MANUAL
DA
TA
DVD SYSTEM
HT-DV50 EZ
S/M Code No. 09-012-439-7R1
REVISION
· This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
AV-HD50 (EZ), (S/M Code No. 09-00C-439-7T1).
BASIC DVD/CD MECHANISM : DV32BF
HT-DV50
RC-AAR05
RC-AVL01
SYSTEM
XD-DV50
REMOTE
CONTROLLER
STEREO
RECEIVER
SPEAKER
SYSTEM
AV-HD50
DVD
PLAYER
SX-AVW50
SX-CR677
2
SPECIFICATIONS ........................................................................................................................................... 3 ~ 4
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING ........................................................ 5
MODEL NO. AV-HD50
ELECTRICAL MAIN PARTS LIST .............................................................................................................. 6 ~ 11
TRANSISTOR ILLUSTRATION .......................................................................................................................... 12
WIRING 1 (MAIN) <1 / 2> ............................................................................................................................... 13
WIRING 1 (MAIN) <2 / 2> ............................................................................................................................... 14
SCHEMATIC DIAGRAM 1 (MAIN) .................................................................................................................. 15
WIRING 2 (FRONT / HP / LED) <1 / 2> .......................................................................................................... 16
WIRING 2 (FRONT / HP / LED) <2 / 2> .......................................................................................................... 17
SCHEMATIC DIAGRAM 2 (FRONT / HP / LED) ............................................................................................ 18
WIRING 3 (FUNC) <1 / 2> .............................................................................................................................. 19
WIRING 3 (FUNC) <2 / 2> .............................................................................................................................. 20
SCHEMATIC DIAGRAM 3 (FUNC) ................................................................................................................. 21
WIRING 4 (TUNER) ......................................................................................................................................... 22
SCHEMATIC DIAGRAM 4 (TUNER) .............................................................................................................. 23
IC BLOCK DIAGRAM .................................................................................................................................24 ~ 25
LCD DISPLAY ..................................................................................................................................................... 26
IC DESCRIPTION .......................................................................................................................................27 ~ 36
ADJUSTMENT ..................................................................................................................................................... 37
MECHANICAL EXPLODED VIEW 1 / 1 ........................................................................................................... 38
MECHANICAL PARTS LIST 1 / 1 ..................................................................................................................... 39
MODEL NO. XD-DV50
ELECTRICAL MAIN PARTS LIST ............................................................................................................ 40 ~ 43
TRANSISTOR ILLUSTRATION .......................................................................................................................... 44
BLOCK DIAGRAM .............................................................................................................................................. 45
WIRING 1 (MAIN) Bottom View .................................................................................................................... 46
WIRING 1 (MAIN) Top View ......................................................................................................................... 47
SCHEMATIC DIAGRAM 1 (MAIN : 1 / 9) <POWER SECTION> .................................................................. 48
SCHEMATIC DIAGRAM 2 (MAIN : 2 / 9) <MCU SECTION> ....................................................................... 49
SCHEMATIC DIAGRAM 3 (MAIN : 3 / 9) <DVD DSP SECTION> ............................................................... 50
SCHEMATIC DIAGRAM 4 (MAIN : 4 / 9) <RF AMP SECTION> ................................................................. 51
SCHEMATIC DIAGRAM 5 (MAIN : 5 / 9) <SPINDLE DRIVER SECTION> ................................................. 52
SCHEMATIC DIAGRAM 6 (MAIN : 6 / 9) <SYSCON SECTION> ................................................................ 53
SCHEMATIC DIAGRAM 7 (MAIN : 7 / 9) <AV DECODER SECTION> ....................................................... 54
SCHEMATIC DIAGRAM 8 (MAIN : 8 / 9) <VIDEO ENCODER SECTION> ................................................ 55
SCHEMATIC DIAGRAM 9 (MAIN : 9 / 9) <VIDEO SECTION> ....................................................................56
WIRING 2 (FRONT) ......................................................................................................................................... 57
SCHEMATIC DIAGRAM 10 (FRONT) ............................................................................................................ 58
WIRING 3 (DVD MECHANISM SECTION) .................................................................................................... 59
SCHEMATIC DIAGRAM 11 (DVD MECHANISM SECTION) ....................................................................... 60
LCD DISPLAY ..................................................................................................................................................... 61
IC BLOCK DIAGRAM .................................................................................................................................62 ~ 65
IC DESCRIPTION .......................................................................................................................................66 ~ 81
MECHANICAL EXPLODED VIEW 1 / 1 ............................................................................................................ 82
MECHANICAL PARTS LIST 1 / 1 ..................................................................................................................... 83
GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE) ............................................ 84
SPEAKER PARTS LIST ..................................................................................................................................... 85
ACCESSORIES / PACKAGE LIST ..................................................................................................................... 85
TABLE OF CONTENTS
3
Stereo Receiver AV-HD50
FM tuner section
Tuning range
87.5 MHz to 108 MHz
Usable sensitivity (IHF)
16.2 dBf
Antenna jack
75 ohms (unbalanced)
AM tuner section
Tuning range
530 kHz to 1710 kHz (10 kHz step)
531 kHz to 1602 kHz (9 kHz step)
Usable sensitivity
700
µV/m
Antenna
Loop antenna
Amplifier section
Power output (Stereo Mode)
Front
Rated : 20 W + 20 W (3 ohms,
T.H.D. 1 %, 1 kHz/DIN 45500)
Reference : 30 W + 30 W (3 ohms,
T.H.D. 10 %, 1 kHz/DIN 45324)
DIN MUSIC POWER : 30 W + 30 W
Power output (Dolby Digital, DTS, or Dolby Pro Logic Mode)
Front
Rated : 20 W + 20 W (3 ohms,
T.H.D. 1 %, 1 kHz/DIN 45500)
Reference : 30 W + 30 W (3 ohms,
T.H.D. 10 %, 1 kHz/DIN 45324)
DIN MUSIC POWER : 30 W + 30 W
Rear (Surround)
Rated : 20 W + 20 W (3 ohms,
T.H.D. 1 %, 1 kHz/DIN 45500)
Reference : 30 W + 30 W (3 ohms,
T.H.D. 10 %, 1 kHz/DIN 45324)
DIN MUSIC POWER : 30 W + 30 W
Center
Rated : 20 W (3 ohms, T.H.D. 1 %,
1 kHz/DIN 45500)
Reference : 30 W (3 ohms, T.H.D. 10 %,
1 kHz/DIN 45324)
DIN MUSIC POWER : 30 W
Subwoofer
Rated : 20 W (3 ohms, T.H.D. 1 %,
100 Hz/DIN 45500)
Reference : 30 W (3 ohms, T.H.D. 10 %,
100 Hz/DIN 45324)
DIN MUSIC POWER : 30 W
Total harmonic distortion
0.2 % (12 W, 1 kHz, 3 ohms, DIN
AUDIO, Front)
SPECIFICATIONS
Input/Output
Input
AUDIO VIDEO 1 IN, AUDIO VIDEO 2
IN : 360 mV (47 kohms)
DIGITAL IN MD, DIGITAL IN DVD :
accept linear PCM signals and Dolby
Digital and DTS surround bitstream
(32 kHz, 44.1 kHz, 48 kHz, and 96 kHz)
VIDEO VIDEO 1 IN, VIDEO VIDEO 2 IN :
1 Vp-p (75 ohms, unbalanced)
Output
AUDIO VIDEO 1 OUT : 320 mV
(47 kohms)
DIGITAL OUT
VIDEO VIDEO 1 OUT, MONITOR OUT :
1 Vp-p (75 ohms, unbalanced)
FRONT SPEAKERS : accept speakers
of 3 ohms
SURROUND SPEAKERS : accept
speakers of 3 ohms
CENTER SPEAKER : accept speakers
of 3 ohms
SUB WOOFER terminal : 3 ohms
SUB WOOFER jack : 800 mV
PHONES (mini jack) : accepts
headphones of 32 ohms or more
General
Power requirements
230 V AC, 50 Hz
Power consumption
70 W
Power consumption in
ECO OFF : 3.8 W
standby mode
ECO ON : 3.0 W
Dimensions
230 (W) x 103 (H) x 233.5 (D) mm
Weight
2.0 kg
4
DVD Player XD-DV50
Colour system
DVD : PAL
VCD : NTSC/PAL (Switchable)
Supported discs
DVD video discs
12 cm (single-sided single-layer,
single-sided double-layer,
double-sided-double layer)
8 cm (single-sided single-layer,
single-sided double-layer,
double-sided-double layer)
Compact discs (CD-DA, video CD)
12 cm and 8 cm discs
Video output
Video composite output
1 Vp-p (75 ohms, sync negative)
RAC jacks
S2 video output
Y output : 1 Vp-p
(75 ohms, sync negative)
C output : 0.286 Vp-p
Audio output
LINE OUT AUDIO R/L
140 mV RMS (1 kHz, -20 dB)
RAC jacks (L/R)
OPTICAL DIGITAL OUT
Fiber optical connector (IEC 958)
Audio output characteristics Frequency range :
CD/VCD : 20 Hz to 20 kHz
DVD : 4 Hz to 22 kHz
(48 kHz sampling)
4 Hz to 44 kHz
(96 kHz sampling)
Wow and flutter : unmeasurable
Operating conditions
5
°C to 35 °C (41 °F to 95 °F)
Dimensions
230 x 65 x 180 mm
Weight
950 g
AC adaptor
100-240 V AC, 50/60 Hz DC 10 V, 1.3 A
Power consumption 12 W
Speaker System SX-AVW50
Speakers
Front, Surround, Center : full range,
70 mm cone type
Subwoofer : 140 mm x 2, bass reflex
type
Impedance
3 ohms
Maximum input power
30 W (peak)
Dimensions (W x H x D)
Front : 90 x 167 x 76 mm
Surround : 90 x 167 x 76 mm
Center : 235 x 90 x 76 mm
Subwoofer : 181 x 406 x 265 mm
Weight
Front : 0.45 kg
Surround : 0.4 kg
Center : 0.5 kg
Subwoofer : 4.5 kg
· Design and specifications are subject to change without
notice.
· Manufactured under license from Dolby Laboratories Licensing
Corporation.
"DOLBY", the double-D symbol
and "PRO LOGIC" are
trademarks of Dolby Laboratories Licensing Corporation.
· Manufactured under license from Digital Theater System, Inc. US
Pat. No. 5,451,942 and other worldwide patents issued and pending.
"DTS" and "DTS Digital Surround" are trademarks of Digital Theater
System Inc. C1996 Digital Theater system, Inc. All rights reserved.
5
This set employs laser. Therefore, be sure to follow carefully the
instructions below when servicing.
WARNING!
VAROITUS!
VARNING!
CAUTION
ATTENTION
ADVARSEL!
This Compact Disc player is classified as a CLASS 1
LASER product.
The CLASS 1 LASER PRODUCT label is located on the
rear exterior.
CLASS 1
LASER PRODUCT
KLASSE 1
LASER PRODUKT
LUOKAN 1
LASER LAITE
KLASS 1
LASER APPARAT
Body or clothes electrostatic potential could
ruin laser diode in the optical block. Be sure
ground body and workbench, and use care
the clothes do not touch the diode.
1) After the connection, remove solder
shown in the right figure.
Precaution to replace Optical block
Solder short land for
DVD laser diode
Solder short land for
CD laser diode
(SF-HD3AV/HD3AVC)
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING