Sharp DV-HR400S User manual

DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
S24O7DV-HR300
SERVICE MANUAL
CONTENTS
DVD RECORDER
WITH HARD DISC
SHARP CORPORATION
Page
1. IMPORTANT SERVICE NOTES ........................................................................................................ 2
2. FEATURES ........................................................................................................................................ 4
3. SPECIFICATIONS ............................................................................................................................. 6
4. PART NAMES .................................................................................................................................... 9
5. DISASSEMBLY METHOD ............................................................................................................... 11
6. ELECTRICAL ADJUSTMENT METHOD ......................................................................................... 14
7. TROUBLESHOOTING ..................................................................................................................... 16
8. BLOCK DIAGRAMS ......................................................................................................................... 26
9. SCHEMATIC DIAGRAMS ................................................................................................................ 34
10. PRINTED WIRING BOARD ASSEMBLIES ..................................................................................... 78
11. REPLACEMENT PARTS LIST / EXPLODED VIEWS .................................................................. 110
12. PACKING OF THE SET ................................................................................................................. 135
1st Edition
2
・The region number
for this Recorder is 2.
PAL
In the interests of user-safety (Required by safety regulations
in some countries) the set should be restored to its original
condition and only parts identical to those specified be used.
MODELS
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H

2
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
Power Cord Protection
To avoid any malfunctions of the Recorder, and to
protect against electric shock, fire or personal injury,
please observe the following.
• Hold the plug firmly when connecting or
disconnecting the AC power cord.
• Keep the AC power cord away from heating
appliances.
• Never put any heavy object on the AC power cord.
• Do not attempt to repair or reconstruct the AC power
cord in any way.
• This Recorder is classified as a CLASS 1 LASER
product.
• The CLASS 1 LASER PRODUCT label is located on
the rear cover.
• This product contains a low power laser device. To
ensure continued safety do not remove any cover or
attempt to gain access to the inside of the product.
Refer all servicing to qualified personnel.
Note:
This Recorder can be used only where the power
supply is AC 220V-240V, 50Hz. It cannot be used
elsewhere.
CAUTION:
USE OF CONTROLS OR ADJUSTMENTS OR
PERFORMANCE OF PROCEDURES OTHER
THAN THOSE SPECIFIED HEREIN MAY RESULT
IN HAZARDOUS RADIATION EXPOSURE.
AS THE LASER BEAM USED IN THIS RECORDER
IS HARMFUL TO THE EYES, DO NOT ATTEMPT
TO DISASSEMBLE THE CABINET. REFER
SERVICING TO QUALIFIED PERSONNEL ONLY.
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO
RAIN OR MOISTURE.
TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, AND ANNOYING INTERFERENCE, USE
THE RECOMMENDED ACCESSORIES ONLY.
Laser Diode Properties
Material: DVD: AlGaInP
CD: GaAlAs
Wave length: DVD: 658nm
CD: 784nm
Emission Duration: Pulse
Laser output: Max. DVD: 100mW
CD: 255mW
ENGLISH
DV-HR480S/DV-HR450S
DV-HR400S
1. IMPORTANT SERVICE NOTES

3
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
Precautions for using lead-free solder
1 Employing lead-free solder
"Writer Main PWB,LCD PWB,Sub PWB,G-Link PWB,Power PWB,Operation (L) PWB,Operation (R) PWB,UV Tuner
PWB,Main PWB" of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached
on the PWBs and service manuals. The alphabetical character following LF shows the type of lead-free solder.
Example:
2 Using lead-free wire solder
When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional
lead wire solder may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40°C, we recommend you
to use a dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldening bit,
contact our service station or service ranch in your area.
3 Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is about 220°C which is higher than the conventional lead solder
by 40°C, and as it has poor solder wettabillty, you may be apt to keep the soldering bit in contact with the PWB for
extended period of time. However, Since the land may be peeled off or the maximum heat-resistance temperature
of parts may be excoeded, remove the bit from the PWB as soon as you conurm the steady soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corroded. Make sure to tum on
and off the power of the bit as required.
if a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after
every use of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.
Becareful when replacing parts with polarity indication on the PWB silk.
LFa
Indicates lead-free solder of tin, silver and copper.
Part No. ★Description Code
ZHNDAi123250E J φ0.3mm 250g(1roll) BL
ZHNDAi126500E J φ0.6mm 500g(1roll) BK
ZHNDAi12801KE J φ1.0mm 1kg(1roll) BM
Lead-free wire solder for servicing
Indicates lead-free solder of tin, silver and copper.

4
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
2. FEATURES
1
“DVD Multi-Play” can play 5 types
of recordable DVD discs
•Besides DVD-RW, DVD-R, DVD+RW *
1
and
DVD+R *
1
discs, it can also play DVD-RAM *
2
discs.
Even a DVD borrowed from a friend can be played
no matter what format it uses.
*1
Only the discs recorded in a video format and finalised
can be played.
*2
DVD-RAM Version 2 discs with a 4.7GB or 9.6GB
capacity which have been recorded using the VR system
of another DVD recorder. (To play a DVD-RAM disc,
remove the disc from its cartridge.)
2
Support for high-speed dubbing
*3
at up to 48x speed from the HDD
to DVD makes creating a video
library easy
High speed dubbing*
3
Enables high speed dubbing from hard disc to DVD
so you can enjoy creating your own video library.
Rate conversion dubbing
The mode can be selected from 32 levels just like
recording mode. This enables recording at the
optimal picture quality, given the remaining empty
space on the disc.
Exact dubbing
This automatically adjusts to the optimal record
mode so that the material is dubbed exactly into the
remaining area on the disc.
*3
To perform high-speed dubbing, you must use discs
conforming to Ver.1.1/2x, 1.2/2x or 1.2/4x for DVD-RW, or
Ver.2.0/4x or 2.0/8x for DVD-R. When using DVD-RW
Ver.1.1/2x and DVD-R Ver.2.0/4x, the maximum dubbing
speeds will be approximately 12x and 24x, respectively.
3
Progressive scanning playback
•Using Component Video Output, you can enjoy high
quality, high-density video with no jagged contours
and no flicker.
4
The GUIDE Plus+ system
•The GUIDE Plus+® *
4
system is an interactive on-
screen television programming guide integrated into
the Recorder. The system is available at no monthly
charge and offers programme listings for all major
channels received in your home, one-touch
recording, search by genre, recommendations
according to your profile and more. In this new era
of ever-increasing number of channels, the GUIDE
Plus+ system offers television viewers a convenient
way to find out what's on right now or in the next
week, by channel or by genre. The GUIDE Plus+
system also allows viewers to automatically set
their recording selections quickly and easily. The TV
listings information displayed in the GUIDE Plus+
system is obtained directly from sources in the
broadcasting industry. This information is received
and processed by Gemstar-TV Guide and “broad-
casted”via so called “Host Channels”directly to the
Recorder.
•You can also programme your Recorder for timer
recording simply by inputting the SHOWVIEW®*
4
programming number.
*
4
GUIDE Plus+, SHOWVIEW, VIDEO Plus+, G-LINK are (1)
registered trademarks or trademarks of, (2) manufactured
under license from and (3) subject of various international
patents and patent applications owned by, or licensed to,
Gemstar-TV Guide International, Inc. and/or its related
affiliates.
5
Built-in DV terminal for high
quality dubbing from digital video
camcorder (DV-HR480S/DV-
HR450S only)
•You can connect to a digital video camcorder with
i.LINK to perform high quality digital video dubbing.
You can also operate camcorder playback functions
such as rewind, fast forward, and stop from the
control panel.
6
High picture quality design (Used
in all hard disc and DVD modes)
Progressive scanning playback
High-quality, high-density video with no jagged
contours and no flicker.
VBR (Variable Bit Rate) recording
Constantly maintains optimal high picture quality by
varying the bit rate (amount of video data) for each
scene depending on the video content (e.g.
whether movement is fast or slow).
Improved play noise reduction
3-dimensional DIGITAL NOISE REDUCTION: This
eliminates the noise contained in the brightness
signals and colour signals, and minimizes the rough
textures of images.
BLOCK NOISE REDUCTION: This cuts the amount
of block noise seen in the fast-moving images in
sports programmes, for example.
MOSQUITO NOISE REDUCTION: This reduces the
flicker noise that occurs in areas such as the
outlines of images.
Linear PCM recording
Linear PCM recording with high sound quality is
supported *
5
to reproduce music programmes and
other such programmes with a clear sound quality.
*5
Supports only the XP mode.
The DV-HR480S/DV-HR450S/DV-HR400S DVD Recorder with Hard Disc
realises easy programming with the GUIDE Plus+ system, and up to 48x
high-speed dubbing.

1
2
3

1
2
3
4

5
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
7Speed viewing and speed listening
(Rapid play)
•Plays a disc at 1.5 times faster than normal speed
with sound. It lets you check lengthy recorded
programmes quickly and easily.
8
32-step manual rate video record-
ing
•The video recording mode can be selected form 32
steps, including four basic steps of high image
quality (XP), standard (SP), x2 (LP) and x3 (EP) .
You may choose one from these steps for optimal
image quality depending on the amount of free
memory remaining on the disc.
9
Comprehensive editing functions
(Only titles recorded on the hard disc or in VR
mode on DVD-RW can be edited.)
Play list edit
This lets you gather only the needed parts (i.e. a
“Play List”) from a recorded original video (title). You
can rearrange scenes and combine them with other
scenes, or rearrange titles. This is convenient when
you want to dub and save only the necessary
scenes and titles.
Chapter edit
This lets you divide a title into chapter units during
recording/playback or using the edit screen. After
dividing, a list of recordings (thumbnails) can be
displayed in chapter units, so you can copy, erase
or dub to the play list in chapter units.
Erase Scene
This lets you erase unnecessary scenes. This is
convenient when you want to cut out the commer-
cials in a recorded programme before dubbing.
Batch erasing of titles/chapters
Titles and chapters which become unnecessary
after editing can be batch erased by selecting them
from the list of recordings (thumbnails).
Edit undo function*
6
If you mistakenly erase data during editing, this
function lets you restore it to its immediately
preceding state, just like “Undo”on a PC, so you
can edit worry-free.
*
6Edit undo can only be used once. It only works when
“UNDO”is assigned to a coloured button (yellow)
displayed on the screen.
10
“Time Shift Viewing”, “Chasing
Playback”and “Simultaneous
Recording/Playback”—functions
you can only get with a hard disc
Time shift viewing
While you are watching a programme, the phone
rings.…At times like this, you can pause the
programme being broadcast at the press of a
button, and then watch the rest of the programme
at your leisure after you finish your phone call.
Chasing playback
You return home earlier than expected while timer
recording is in progress…. At times like this, you
don’t have to wait for recording to end. You can
immediately view the programme from the begin-
ning.
Simultaneous recording/playback
Even while recording to the hard disc, you can
enjoy playback of a DVD, or programmes already
recorded on hard disc. You don’t have to wait for
recording to finish.
11
MP3/WMA file playback
•This Recorder allows you to playback MP3/WMA
files recorded on CD-RW/R and DVD-RW/R.
12
JPEG file playback
•This Recorder enables you to display still images
stored as JPEG files on a DVD-RW/R. You can
display images one at a time, or use the Slide Show
function to automatically display images sequen-
tially.
1
2
3
4
5
1
2
3

6
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
3. SPECIFICATIONS
General
HDD capacity: 250 GB (DV-HR480S),
160 GB (DV-HR450S),
80 GB (DV-HR400S)
Power supply: AC 220-240 V, 50 Hz
Power consumption (Normal): 36 W
Power consumption (Standby): 1.5 W (When the Front Panel
Display is off)
Dimensions: Approx. 430 mm x59 mm x323
mm (W xH xD)
Weight: Approx. 5.3 kg
Operating temperature 5°C to 35°C
Storage temperature: –20°C to 55°C
Operating humidity: 10% to 80% (no condensation)
TV systems: PAL system, 625 lines, 50 fields
Recording
Recordable disc media: DVD-RW, DVD-R
Recording system (HDD): Video: MPEG
Audio: Dolby Digital (2ch)/Linear
PCM (XP/MN32 mode only)
Recording system (DVD-RW/R): Video: DVD-Video Recording
(VR mode)
DVD-VIDEO (Video mode)
Audio: Dolby Digital (2ch)/Linear
PCM (XP/MN32 mode only)
Recording time (Hard disc): XP (High picture quality):
Approx. 63 hours (DV-HR480S)
Approx. 40 hours (DV-HR450S)
Approx. 20 hours (DV-HR400S)
SP (Standard):
Approx. 104 hours (DV-HR480S)
Approx. 68 hours (DV-HR450S)
Approx. 33 hours (DV-HR400S)
LP (2X):
Approx. 208 hours (DV-HR480S)
Approx. 137 hours (DV-HR450S)
Approx. 67 hours (DV-HR400S)
EP (3X):
Approx. 312 hours (DV-HR480S)
Approx. 205 hours (DV-HR450S)
Approx. 100 hours (DV-HR400S)
MN (Manual):
32 levels between XP and EP
(However, the maximum
continuous recording time is 12
hours.)

7
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
Recording time
(with 4.7GB DVD-RW/R): XP (High picture quality):
Approx. 1 hour
SP (Standard): Approx. 2 hours
LP (2X): Approx. 4 hours
EP (3X): Approx. 6 hours
MN (Manual): 32 levels between
XP and EP
Playback
Playable discs: DVD Video, DVD-RW/R,
DVD+RW/R, DVD-RAM, Audio
CD (CD-DA), Video CD, CD-RW/
R (CD-DA, Video CD format,
MP3 file format, WMA file
format, JPEG file format)
Tuner
Channel coverage: PAL-B/G, PAL-D/K
VHF 2-12
UHF 21-69
CATV S1-S41
Timer
Programmes: 16 programmes/1 year
Clock: Quartz clock
(24-hour digital display)
Memory backup: Approx. 1 hour
Input/Output
VHF/UHF antenna input/
output terminal: 75Ω(F-shape connector)
Video input: LINE 1, LINE 2 (rear), 3 (front)
Input level: 1 Vp-p (75Ω)
SCARTs: 21 pin
Jack: RCA-pin jack
Video output:
Output level: 1 Vp-p (75Ω)
SCARTs: 21 pin
Jack: RCA-pin jack
S-Video input: LINE 1, LINE 2 (rear), 3 (front)
Y-Input level: 1 Vp-p (75Ω)
C-Input level: 0.3 Vp-p (75Ω)
SCARTs: 21 pin
Jack: 4 pin mini DIN
S-Video output:
Y-Output level: 1 Vp-p (75Ω)
C-Output level: 0.3 Vp-p (75Ω)
SCART (only LINE 1): 21 pin
Jack: 4 pin mini DIN

8
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
Component video output:
Output level: Y: 1 Vp-p (75Ω)
PB/CB, PR/CR: 0.7 Vp-p (75Ω)
Jacks: RCA jack
Audio input: Input 1, 2 (rear), 3 (front) L/R
Input level: 2 V rms (Input impedance: more
than 22 kΩ)
Jacks: RCA jack
Audio output: L/R
Output level: 2 V rms (Output impedance:
less than 1.5 kΩ)
Jacks: RCA jack
Digital audio optical output (DV-HR480S/DV-HR450S only):
Terminal: Square Optical terminal
Digital audio coaxial output:
Jack: RCA jack
DV input (DV-HR480S/DV-HR450S only):
Terminal: 4 pin (i.LINK/IEEE 1394
standard)
G-LINK:
Terminal: Mini jack
LASER Specification
Wave length: DVD: 658 nm
CD: 784 nm
Laser power: DVD: 100 mW
CD: 225 mW
Specifications are subject to change without notice.

9
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
4. PART NAMES
Main Unit (Front)
Front Panel Display
1
6789
10 11
235
18
4
12 17
13 14 15 16
1
5
4
6
7
10
11
9
8
12
13
3
2
Main Unit (Rear)
1 2 56
34781011
12
9
1OPERATE
2STANDBY indicator
3TIMER indicator
4Disc tray
5OPEN/CLOSE
6RESET
7LINE IN 3
•AUDIO Input jacks
•VIDEO Input jack
•S-VIDEO Input jack
8DV IN terminal (DV-HR480S/
DV-HR450S only)
9HDD REC STOP
10
HDD REC
11 HDD STOP
12 HDD PLAY
13 DVD PLAY
14 DVD STOP
15 DVD REC
16 DVD REC STOP
17 CHANNEL /
18 Infrared receptor
3 Title indicator
4 Dubbing indicator
5 HDD Mode indicator
6 Recording Mode indicator
7 DVD indicator
8 Decoder indicator
9 Chapter indicator
10 Information Display
11 DVD Mode indicator
12 Tamper Proof indicator
13 Simple Recording Timer indicator
5 COMPONENT Video Output jacks
6 VIDEO Output jack
7 AUDIO Output jacks
8 S-VIDEO Output jack
9 G-LINK jack
10 DIGITAL AUDIO Output COAXIAL jack
11 DIGITAL AUDIO Output OPTICAL
terminal (DV-HR480S/DV-HR450S only)
12 Cooling Fan
The cooling fan operates while the power
to the Recorder is on. It also operates
while in the standby state (when the
STANDBY indicator is lit red), and while
programmed recording is taking place or
TV listings data is being downloaded.
1 PDC/VPS indicator
2 Disc Remaining Time indicator
1 ANTENNA OUT jack
2 ANTENNA IN jack
3 21-pin Euro-SCART (LINE 1 (TV)) 4 21-pin Euro-SCART (LINE 2 (DECODER/EXT))
Æ
Ë
|
|
Ë
Æ
"'
Remote Control Unit
4238 4339 4440 4541 46
1
OPERATE
2
OPEN/CLOSE
3
Number buttons
4
TIMER ON/OFF
5
TV/DVD
6
START MENU
7
HDD
8
REC LIST/DVD TOP MENU
9
Cursor buttons ( ///)
10
EXIT
11
Red (A), Green (B), Yellow (C), Blue (D)
12
REV
13
STILL/PAUSE
14
STOP/LIVE
15
F.ADV , DAY–/+, SKIP .
16
REC.
17
REC STOP
18
TV CONTROL buttons
19
CH / , PAGE UP/DOWN
20
DIRECT
21
INFORMATION
22
ERASE
23
TIME SHIFT
24
REC MODE
25
GUIDE
26
INPUT
27
DVD
28
ORIGINAL/PLAY LIST/DVD MENU
29
SET/ENTER
30
RETURN
31
PLAY
32
FWD
33
SLOW
34
REPLAY
35
SKIP SEARCH
36
CHAPTER MARK
37
REC PAUSE
38
ANGLE
39
FUNCTION
40
DIRECT REC TV
41
RGB OFF
42
AUDIO
43
SUBTITLE
44
DISPLAY/BACKLIGHT
45
ON SCREEN
46
TAMPER PROOF
NOTE
•To change between single digit and two-
digit channel numbers, press the key with
“*”above (below 7key). For example, to
enter “24”, press this key and then “24”.
Also this key is used to switch between
UHF/VHF and CATV in the case of Manual
Tuning.
1
*
2
6
8
10
15
16
12
13
14
17
11
9
7
5
4
3
18
19
22
20
21
23
24
26
27
28
30
33
32
34
35
36
37
25
31
29
'"\|
Ë
Æ
'
"
|

10
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
1
While pressing down,
slide the battery cover in
the direction of the
arrow.
2
Load the batteries.
Load the two R-03 size batteries (“AAA”
size, UM/SUM-4) supplied with the
remote control unit. Make sure that the
battery poles and are positioned
as indicated.
3
Slide the battery cover
in the direction of the
arrow until it clicks.
Operating range of remote control
NOTE
•Do not subject the remote control unit to shock, water or excessive humidity.
•The remote control unit may not function if the Recorder’s remote sensor is in direct sunlight or any other strong light.
•Incorrect use of batteries may cause them to leak or burst. Read the battery warnings and use the batteries properly.
•Do not mix old and new batteries, or mix different brands.
•Remove the batteries if you will not use the remote control unit for an extended period of time.
Loading the Batteries
Remote sensor
About 30 About 30
Front 7m
Remote control
unit

11
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
5. DISASSEMBLY METHOD
5-1. DISASSEMBLY METHOD
(1) Method for disassembly of top cabinet.
1.Remove 3 pieces of screw 1and 2 pieces of screw 2.
2.Slide top cabinet backwards for a distance of 10mm then lift
exposed edge of top cabinet and slide upwards.
(2) Method for disassembly of front panel.
1.Push protrude area of a with screw driver etc,in direction shown
to push tray out.
2.Remove tray dec ass'y from tray.(Unhook 4 hooks & remove 2
springs)
3.Remove 2 pieces of screw 3.
4.After removing and hooks of front panel, pull panel frontward.
(3) Method for removal of operation and LCD board.
1.Disconnect FFC. harness at 4 places.
2.Remove 2 pieces of screw 4. 1 piece of screw 5
and 1 piece of screw 6.
3.Pull all boards frontward.
(4) Method for removal of main board.
1.Remove wire holder .
2.remove 4pieces of screw 7.
3.Disconnect FFC, harness at 6 places.
4.Remove main board by lifting upward.
(5) Method for removal of HDD unit.
1.Remove 4 pieces of screw 8.
2.Remove HDD unit with angle by lifting it upward.
3.Remove 4 pieces of screw 9.
4.Remove HDD unit.
5.Remove flat cable and power cable.
(6) Method for removal of G-link unit.
1.Remove 1 piece of screw 0and 1 piece of screw q.
2.Slide G-link unit out of rear panel.
3.Remove 1 piece of screw w.
4.Remove G-link unit from jack angle.
1
2
1
1
2
a
3
45
6
7
8
9
9
10
11
12

12
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
(9) Method for removal of UV tuner board, power board and sub-board.
1.Remove UV tuner board by pulling upwards.
2.Disconnect cables of power board and sud-board.
3.Remove 5 pieces of screw o.
4.Remove power board by lifting upwards.
5.Remove 1 piece of screw pand 1 piece of screw a.
6.Remove sub-board by lifting it upwards.
(8) Method for removal of rear panel and fan.
1.Disconnect for cable from sub-board.
2.Remove 2 pieces of screw t.
3.Remove fan and fan angle.
4.Remove 1 piece of screw y, 1 piece of screw u, 8 pieces of
screw i. (8 pieces for DV-HR400S/H, 9 pieces for DV-
HR450H and DV-HR480S/H)
5.Remove 2 hooks of rear panel from chassis.
6.Remove rear panel by puling it away from chassis.
13
13
14
14
15
16
1
7
18
19
20
21
(7) Method for removal of Writer unit.
1.Remove 4 pieces of screw e.
2.Remove Writer unit (with angle) by lifting upwards.
3.Remove 4 pieces of screw r.
4.Disconnect flat cable and power cable.

13
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
Parts Code Price Code Parts name / Use
1QCNW-C773WJZZ AD Main to Sub Signal Line CN3001—CN2202
2QCNW-C771WJZZ AD Main to Sub Control Line CN4502↔CN9803
3QCNW-D183WJZZ AT Main to Power CN3004↔P9005
4QCNW-D422WJZZ AH ATAPI cable for HDD CN4501↔ATAPi
Extension with QCNW-C773WJZZ
Extension with
QCNW-C771WJZZ
Extension with
QCNW-D422WJZZ
Extension with
QCNW-D183WJZZ
Main PWB
HDD Unit
DVD RW Unit
Sub PWB
POWER Unit
Development for repair
2
34
1
5-2. EXTENSION CABLE DIAGRAM
27pin
40pin
12pin 12pin
1
2
3
40pin
4

14
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
Jumper Name Jumper# DV-HR400/450/480S DV-HR400/450/480H
AV SW IC JP00: 0 0
NO USE JP01: 0 0
T.Prg Lpow NG JP02: 1 1
T.CH BCD from Host JP03: 0 0
EPG Backlight NG JP04: 0 0
Decoder ON NG JP05: 0 0
NO USE JP06: 0 0
NO USE JP07: 0 0
NO USE JP08: 0 0
NO USE JP09: 0 0
NO USE JP10: 0 0
NO USE JP11: 0 0
NO USE JP12: 0 0
NO USE JP13: 0 0
NO USE JP14: 0 0
NO USE JP15: 0 0
NO USE JP16: 0 0
NO USE JP17: 0 0
NO USE JP18: 0 0
NO USE JP19: 0 0
NO USE JP20: 0 0
NO USE JP21: 0 0
NO USE JP22: 0 0
NO USE JP23: 0 0
NO USE JP24: 0 0
NO USE JP25: 0 0
NO USE JP26: 0 0
NO USE JP27: 0 0
NO USE JP28: 0 0
NO USE JP29: 0 0
NO USE JP30: 0 0
NO USE JP31: 0 0
NO USE JP32: 0 0
NO USE JP33: 0 0
NO USE JP34: 0 0
NO USE JP35: 0 0
NO USE JP36: 0 0
NO USE JP37: 0 0
NO USE JP38: 0 0
NO USE JP39: 0 0
Total Hex
6. ELECTRICAL ADJUSTMENT METHOD
6-1. IC501 FRONT TIMER MICON INITIAL JUMPER SETTING METHOD
Whenever EEPROM IC503 is change, please confirm lnitial Jumper Setting using below method.
Initial Jumper Setting
1).Press the power key to turn off the power. Then, enter Initial Jumper Setting mode by pressing the R/C Test key
(F8H) OR take off the front panel, and press Test key SW5005.
2).By using channel ' / "key, confirm the jumper setting base on below table.
*If JP Number blinking: “1”If JP Number light ON: “0”
3).Press DVD PLAY key to change to “1”(JP Number blinking).
Press DVD STOP key to change to “0”(JP Number light ON).
4).After finish the setting and confirmation, again press the R/C Test key (F8H) OR press Test key SW5005 at the
front panel to cancel the Initial Jumper Setting mode..
5).Press Reset key at the front panel.
1 : PLAY key Blinking
0 : STOP Key Light ON

15
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
6-2. Notes for servicing
1. After replacing NAND Flash (IC7507), upgrade the version using the CD.
2. After replacing the Main PWB, do initialization of the HDD.
The following parts cannot be replaced as the system information needs to be written. (Replace the PWB.)
1. EEPROM IC7504
Setting procedure after replacement of HDD or main PWB
1) HDD aging
The test mode can be accessed after replacing the HDD.
[1] Enter the test mode with the keys on the main unit (press the channel DOWN key and DVD REC STOP key simultaneously).
[2] Press the “RED”color key botton of te R/C.
[3] Press the ENTER key of the R/C.
“000001”appears on the LCD of the front panel. the aging starts. The display will change to “000777”when the aging is
completed.
Should “EEE”appear, replace the HDD and start the process over. Aging takes approx. 2 hours.
[4] The aging is completed when “000777”appears, turn off the Power.
[5] Restart the unit and check the operation.
2) Factory setting
Initialize all the settings. Enter the test mode and select “INS.SHIPMENT”“ON”by using the cursor Key
(' / " / Û / û).
Then,Press the ENTER key on the R/C.
Initialization is completed when “INS.SHIPMENT”“OK”is display on the TV screen.
Turn off the Power.
6-3. Writing of software
1. Press the power key to turn on the power.
2. Open the tray with the tray open/close key and place the version upgrade CD.
3. Close the tray. Upgrade begins automatically.
“200”appears on the main unit display.
4. When the upgrade finishes, the tray opens and “208”appears on the main unit display.
5. Turn off the power to complete the upgrade.
•Upgrade the writer in the same way. In this case, “300”and “307”appear on the main unit display during the process.

16
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
7. TROUBLESHOOTING
Power On Process 1
External power supply start (AC outlet
connection)
Turn on TT microprocessor IC501 and
remote control light sensor
TT microprocessor IC501 (14 MHz) starts
to oscillate
TT microprocessor IC501 imports
E2PROM IC503 data and communicates
This pass is followed
when backup is
retained.
Turn on power temporarily to
perform this process.
TT
microprocessor
initialization start
IC7506 startup & communication & stop
process
Standby after
-- : --
in the LCD display flashes
DISC information
acquisition
Cancel power-saving mode
This pass is followed
when backup is not
retained.
Turn on power with remote control
or main unit
LCD display start/HDD and DVD LED
flash
TT microprocessor IC501 sets PCON to
ON
Cancel IC7506 reset after approximately
160 msec from PCON
Startup operation start
Power On Process 2

17
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
Power On Process 3
Cancel power-saving mode
Startup operation start
Write FLASH memory IC7509 contents to
SDRAM IC7510, 7511
Initialize each pin in IC7506
Import data from E2PROM
TT microprocessor IC501 starts to
communicate with IC7506
(4-wire serial communication)
IC7506 starts to communicate with writer
and HDD
Cancel MPEG encoder IC7304 and IC4501,
IC4005, IC4001, IC3502 reset
Initialize MPEG encoder IC7304, 3DYC
IC3502, Audio DAC
Cancel video mute
Startup operation end

18
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
FLOW CHART No.2
Drive is not working properly (communication failure with IC7508).
Is ATAPI reset released? (CN4502 pin 1 R4540: RESET_"H" level)
NO
Check IC7508 and peripheral
circuits.
YES
Check following items. NO Check power unit and PC_12V
and PC_5V circuits.
Communicating with drive via ATAPI?
Access drive when CN4501 pin 37 CS0 and pin 38 CS1 are at "L"
level. (Communication is ongoing if intermittently set at LOW.)
CN4502 pin 35 DA0, pin 33 DA1, pin 36 DA2 and ATAPI register
address (Intermittently set at LOW).
CN4502 pin 31 INTRQ is at "H" level when drive interrupts. Output
after processing transfer command from IC7508, etc.
CN4502 pin 21 DMARQ is at "L" level when drive requests data
transfer.
CN4502 pin 29 DMACK is at "L" level when IC7508 receives data
transfer for DMARQ from drive.
When CN4502 pin 25 DIOR and pin 23 DIOW are at "L" level,
IC7508 sends READS/WRITE to drive. (Communication is ongoing
if CS and DA are intermittently set at LOW.)
Are 12V and 5V applied to drive?
NO
Check lines between pins of IC7507 and IC7508.
FLOW CHART No.1
With power on, circuits on main PWB do not work properly.
Power turns off approx. 5 seconds after turned on.
NO NO
Are voltages of 3.3V (VDD3.3, AVDD),2.5V
(VDD2) and 1.5V(VDD1,PVDD) applied to
pins of IC7508?
After power on, is EMMA2_RST signal ("H" →
"L" when reset) input to IC7508 pin 283?
YES
Reset
Check
Is Q7512 base (BOOTSEL1) at "L" level and
IC7508 pin 232 at "H" level?
YES
Is serial communication established between
IC7508 and sub unit IC501?
IC7508 pin 286 CSISDIN (SUBMIC_D_OUT)
IC7508 pin 123 FPCSTB (SUBMIC_CS)
IC7508 pin 287 CSISCK (SUBMIC_CLK)
IC7508 pin 122 CSISDOUT (SUBMIC_D_IN)
YES
NO
NO
NO
NO
Is reset signal ("H" →"L" when reset) input to
pins of each IC?
IC3502 pin 84 YCDEC_RST
IC4007 pin 13,14 DVAD RST
IC4004 pin 1394_RST
IC3009 pin 5 DA_RST
IC3005 pin 13 AD_RST
NO
With power on, is fan running?
Fan is defective or power supply failure.
Check D_3.3V (1) and pc_1.5V (IC7503) lines.
Check IC7508 and peripheral
circuits.
Check line between IC501 pin 98 (MAIN CPU_RST)
→Q3001,Q3002→IC7508
pin 283(EMMA2_RST).
Check BOOTSEL1 (DOWN L [H]) line between IC501
pin 22 and Q7512 base as well as line between Q7512
collector and IC7508 pin 232.
Check lines between pins of IC7508 and sub PWB
IC501.
IC7508 pin 286 ←IC501 pin 16 TU_D_OUT
IC7508 pin 123 →
IC501 pins 2, 3 TU_CS
IC7508 pin 287 →
IC501 pin 14 TU_CLK
IC7508 pin 122 →IC501 pin 15 MAIN_DATA
YES
With power on, is data input to IC7508 pins 91,
178,179,258,259,260,261 and 332.
RDATA [7:0]?
YES
Is 27MHz clock signal input to pins of the
following ICs?
IC7508 pins 79,132,215,216,217 27MHz_OSC
IC4004 pins 50, 202 INVCK4
Check lines between pins of IC7508 and other ICs.
IC7508 pin 32 →IC3502 pin 84 YCDEC_RST
IC7508 pin 204 →IC4007 pin 13,14 DVAD RST
IC7508 pin 205 →IC4004 pin 1 1394_RST
IC7508 pin 24 →IC3009 pin 5 DA_RST
IC7508 pin 23 →IC3005 pin 13 AD_RST
NO
YES
YES
NO
Check X3001 and peripheral
circuits.
Is 27MHz clock signal output to X3001 pin 4?
NO Check X3502 and peripheral circuits.
Check lines between pins4 of X3001 and other ICs.
X3001 pin 4 →IC7508 pins 79,132,215,216,217
27MHz_OSC
X3001 pin 4 →IC4004 pins 50, 202 INVCK
NO
YES
YES
Is 133MHz clock signal DDR DCK DDRDCKB
input to IC4602,4603 pin 45,46?
Is 24.576MHz clock signal output on IC3502
pin 43?
Check IC7508 and peripheral circuits.
Is 133MHz clock signal output to IC7508 pin 138,
300?
Check lines between IC7508 pin 138,300 and
IC4602,4603 pin 45,46.
NO
YES
Clock
Check
Clock
Check
Is reset signal ("H" →"L" when reset) output to each
pin of IC7508?
IC7508 pin 32 YCDEC_RST
IC7508 pin 204 DVAD RST
IC7508 pin 205 1394_RST
IC7508 pin 24 DA_RST
IC7508 pin 23 AD_RST
NO

19
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
FLOW CHART No.3
HDD is not working properly (communication failure with IC7508).
Is ATAPI reset released? (CN4502 pin 40 R4566: "H" level)
NO
Check IC7508 and peripheral
circuits.
YES
YES
Check following items. NO Check power unit and PC_12V
and PC_5V circuits.
Communicating with drive via ATAPI?
Access drive when CN4501 pin 4 CS0 and pin 3 CS1 are at "L"
level. (Communication is ongoing if intermittently set at LOW.)
CN4501 pin 6 DA0, pin 8 DA1, pin 5 DA2 and ATAPI register
address (intermittently set at LOW).
CN4501 pin 10 INTRQ is at "H" level when drive interrupts. Output
after processing transfer command from IC7508, etc.
CN4501 pin 20 DMARQ is at "L" level when drive requests data
transfer.
CN4501 pin 12 DMACK is at "L" level when IC7508 receives data
transfer for DMARQ from drive.
When CN4501 pin 16 DIOR and pin 18 DIOW are at "L" level,
IC7508 sends READS/WRITE to drive. (Communication is ongoing
if CS and DA are intermittently set at LOW.)
Are 12V and 5V applied to HDD?
YES
Is the EE signal appear?
FLOW CHART No.4
Recording is impossible
NO Check Flow Chart NO.9 "Image EE does not
appear".
YES
IC7508 pin 236 (Q7506 B) Y (VAY)
IC7508 pin 235 (Q7505 B) C (VAC)
IC7508 pin 62 (Q7501 B) G/Y (VAG)
IC7508 pin 153 (Q7503 B) B/U (VAB)
IC7508 pin 61 (Q7502 B) R/V (VAR)
FLOW CHART No.5
Playback video signal is not output from main PWB.
Is drive control of IC7508 working properly?
Is HDD control working properly?
Check lines between pins of IC7508 and CN3001 as well as
circuits on lines.
IC7508 pin 236 →Q7506 →CN3001 pin 25_Y
IC7508 pin 235 →Q7505 →CN3001 pin 27_C
IC7508 pin 62 →Q7501 →CN3001 pin 20_G/Y
IC7508 pin 153 →Q7503 →CN3001 pin 21_B/U
IC7508 pin 61 →Q7502 →CN3001 pin 22_R/V
NO
NO
Refer to Flow chart No.2 "Drive is not working
properly (communication failure with IC7508)"
or Flow chart No.3 "HDD is not working
properly (communication failure with IC7508)".
Check IC7508 and peripheral circuits.
YES
YES
Is video signal output to pins of main unit connector CN3001?
CN3001 pin 25 _Y
CN3001 pin 27 _C
CN3001 pin 24 _V
FLOW CHART No.6
Playback images do not appear properly (from video/S output).
NO Refer to Flow chart No.5 "Playback video
signal is not output from main PWB".
YES
Check line from IC2501 pin 21 S-Y_OUT,
pin 26 S-C_OUT to terminal (SC2603).
Check IC2501 pin 23 →IC2601 pin 7 (IN)
and output waveform of IC2601 pin 25.
Is 5V applied to IC2501 pins 1, and 28?
Is IC2501 pin 3 at "H" level?
Check STNDBY_5V line
NO
NO
Is video signal input to each pin of IC2501?
IC2501 pin 6 SD_SY
IC2501 pin 2 SD_SC
IC2501 pin 4 SD_V
YES
Is video signal output to each pin of IC2501?
IC2501 pin 21 Y_OUT
IC2501 pin 26 C_OUT
IC2501 pin 23 V_OUT
Check lines between pins of CN3001 and
IC2501.
CN3001 pin 25 →CN2202 pin 25 →IC2501
pin 6 SD_SY
CN3001 pin 27 →CN2202 pin 27 →IC2501
pin 2 SD_SC
CN3001 pin 24 →CN2202 pin 24 →IC2501
pin 4 SD_V
YES
NO
NO
NO
Is video signal output to each output terminal?
Are Y and C signals output to S-OUT terminal (SC2603)?
Is video signal output to Video-OUT terminal (J2602)?
Is video/Y signal output to SCART L1 terminal?
NO
YES
ICheck or replace
IC2501.
YES
YES
Is T_V_MUTE line
at "L" level?
NO
Is voltage of 12V supplied to pin 14 of
IC2601 and 5V to pin 24?
Check or replace
IC2601.
YES
Check 12V line and
periphery of IC2691.
5V →STNDBY.
Check 5V line.
NO
Check Q2516. Check T_V_MUTE
line.
NO
Check input waveform of IC2682 pins 4 and 6 and output of pin 2. IC2501 pin 21 →IC2682 pin 4 Y OUT
IC2682 pin 6 →IC2601 pin 25
IC2682 pin 2 output. When pin 1 is "H": Pin 4 input signal.
"L": Pin 6 input signal is output.
Is voltage of 5V supplied to IC2682 pin 3?
Check or replace IC2682.
YES
Check STNDBY 5V line.
NO
Is video signal output to each pin of IC7508?

20
DV-HR400S/H
DV-HR450S/H
DV-HR480S/H
Is video signal output to pins of main unit
connector CN3001?
CN3001 pin 20 G/Y
CN3001 pin 21 B/CB
CN3001 pin 22 R/CR
FLOW CHART No.7
Playback images do not appear properly (from Y/C
B
/C
R
output).
NO
Refer to Flow chart No.5 "Playback video signal is not output
from main PWB".
YES
YES
NO Check lines between pins of CN3001 and IC2503.
CN3001 pin 20 →IC2503 pin 9
CN3001 pin 21 →IC2503 pin 14
CN3001 pin 22 →IC2503 pin 1
Is video signal input to each pin of IC2503?
IC2503 pin 9 G/Y
IC2503 pin 14 B/CB
IC2503 pin 1 R/CR
YES
NO
Is 5V applied to IC2503 pin 13?
Is IC2503 pin 12 (DVD (H) line) at "H" level?
Check PC_5V (1) line.
Is video signal output to each pin of IC2503?
IC2503 pin 6 COM_Y
IC2503 pin 5 C
B
IC2503 pin 3 C
R
NO
YES
Check or replace
IC2503.
YES
Check DVD (H) line.
NO
YES
Check line from IC2501 pin 20 to component Y terminal (J2601)
and component terminal (J2601).
Check line from IC2501 pin 18 to component CB terminal (J2601)
and component terminal (J2601).
Check line from IC2501 pin 16 to component CR terminal (J2601)
and component terminal (J2601).
NO
NO
NO
Is each video signal output to each output
terminal?
Is Y signal output to component terminal
(J2601)?
Is C
B
signal output to component terminal
(J2601)?
Is C
R
signal output to component terminal
(J2601)?
YES
Check Q2512. Check T_V_MUTE and RGB CTL line.
NO
NO Check line from each pin of IC2503 to each pin of IC2501.
IC2503 pin 6 →IC2501 pin 10 COM_Y
IC2503 pin 5 →IC2501 pin 12 C
B
IC2503 pin 3 →IC2501 pin 14 C
R
Is each video signal input to each pin of
IC2501?
IC2501 pin 10 COM_Y
IC2501 pin 12 C
B
IC2501 pin 14 C
R
YES
NO
Is voltage of 5V supplied to IC2501 pins 1 and 28?
Is IC2501 pin 13 "H" level?
Check STNDBY_5V line.
Is each video signal output to each pin of
IC2501?
IC2501 pin 20 COMPO_Y
IC2501 pin 18 C
B
_OUT
IC2501 pin 16 C
R
_OUT
NO
YES
Check or replace
IC2501.
YES
Is T_V_MUTE line "L" level?
Is RGB CTL line "L" level?
NO
Is video signal output to pins of main unit
connector CN3001?
CN3001 pin 20 G/Y
CN3001 pin 21 B/CB
CN3001 pin 22 R/CR
FLOW CHART No.8
Playback images do not appear properly (from R/G/B output).
NO
Refer to Flow chart No.5 "Playback video signal is not output
from main PWB".
YES
YES
NO Check lines between pins of CN3001 and IC2503.
CN3001 pin 20 →IC2503 pin 9
CN3001 pin 21 →IC2503 pin 14
CN3001 pin 22 →IC2503 pin 1
Is video signal input to each pin of IC2503?
IC2503 pin 9 G/Y
IC2503 pin 14 B/CB
IC2503 pin 1 R/CR
YES
NO
Is 5V applied to IC2503 pin 13?
Is IC2503 pin 12 (DVD (H) line) at "H" level?
Check PC_5V (1) line.
Is video signal output to each pin of IC2503?
IC2503 pin 6 COM_Y
IC2503 pin 5 C
B
IC2503 pin 3 C
R
NO
YES
Check or replace
IC2503.
YES
Check DVD (H) line.
NO
YES
Check line from IC2502 pin 15 to IC2681 pin 6.
Check IC2681 pin 2 output.
Check line from IC2502 pin 13 to SCART L1 terminal (SC2601)
and SCART L1 terminal (SC2601).
Check line from IC2502 pin 10 to SCART L1 terminal (SC2601)
and SCART L1 terminal (SC2601).
NO
NO
NO
Is each video signal output to SCART L1 output
terminal?
Is R OUT signal output to SCART L1 output
terminal?
Is G OUT signal output to SCART L1 output
terminal?
Is B OUT signal output to SCART L1 output
terminal?
YES
Check Q2510. Check T_V_MUTE line.
NO
NO Check line from each pin of IC2503 to each pin of IC2502.
IC2503 pin 6 →IC2502 pin 4 COM_Y
IC2503 pin 5 →IC2502 pin 6 CB
IC2503 pin 3 →IC2502 pin 2 CR
Is each video signal input to each pin of
IC2502?
IC2502 pin 4 COM_Y
IC2502 pin 6 C
B
IC2502 pin 2 C
R
YES
NO
Is voltage of 5V supplied to IC2502 pins 1, 5, 14 and 16?
Is IC2502 pin 3 "H" level?
Check STNDBY_5V line.
Is each video signal output to each pin of
IC2502?
IC2502 pin 15 R_OUT
IC2502 pin 13 G_OUT
IC2502 pin 10 B_OUT
NO
YES
Check or replace
IC2502.
YES
Is T_V_MUTE line "L" level?
NO
NO
Check S OUT (H)
line. Check or replace IC2681.
YES
Is voltage of 5V supplied to IC2681 pin 3?
YES
Check STNDBY
5V line.
NO
Is IC2681 pin 1 "L" level?
YES