Loewe VIEWVISION DR Plus DVB-T User manual

MODEL : VIEWVISION DR+ DVB-T
SERVICEANLEITUNG
Serviceanleitung
Allgemeine Beschreibungen
Abgleichanleitungen
Blockdiagramme / Schaltbilder
Explosionsansichten / Stücklisten
DVB-T/HDD/DVD RECORDER
LOEWE
MODEL
VIEWVISION DR+ DVB-T
Art.-Nr.59515
Loewe Service
Europa •Europe
Benelux
Loewe Opta Benelux NV / SA
Luitenant Lippenslaan 54 B
B-2140 Antwerpen
Tel. 0902 - 88002
Fax 03 - 2354837
Loewe Opta Nederland B.V.
Ravenswade 54A1
NL - 3439 LD Nieuwegein (Utrecht)
Tel. 0900 - 2020180
Fax 030 - 2803327
Dänemark
Semi-Tech ConsumerElectronics (Denmark)
A/S
Hørskætten 3
DK - 2630 Taastrup
Tel. [phone]
Fax [phone]
Deutschland
LOEWE OPTA GmbH
Service und Logistik / Zentrale Kronach
96305 Kronach • Postfach 1554
96317 Kronach • Industriestrasse 11
Tel. 0180 - 5221800
Fax 0180 - 5221806
DxJ-Tin.-Nr. 0926199
Internet: http.//www.loewe.de
Frankreich
Sorep Import S.A. Loewe Opta
11 Rue de la Durance
BP 954
F - 67029 Strasbourg Cédex 1
Tel. 3 - 88797250
Fax [phone]
Griechenland
SOUND HELLAS S.A.
Kleanthous Str. 10
GR - 54642 Thessaloniki
Tel. 003 0 - 31 - 856100
Fax 0030 - 31 - 856300
Grossbritannien
Linn Products Limited
PO Box 8465
Pestwick
UK - KA 7 2YF
Tel. 0044 - 1292471552
Fax 0044 - 1292471554
GUS
Service Center Loewe
ul. Verkhnyaya Maslovka, d. 29
RUS - 125083 Moscow
Tel. 095 - 2125043, 9566764
Fax 095 - 2124710
Italien
General Trading Trust SpA
Via Volturno 10/12 - Scala B
I - 50019 Sesto Fiorentino (Fl)
Tel. 055 - 300342
Fax 055 - 300343
Malta
Mirage Holdings LTD
Flamingo Complex
Cannon Road
M - Qormi
Tel. 497182
Fax 445983
Norwegen
CableCom AS
Bekkevn, 9
N - 3218 Sandefjord
Tel. 033 / 483348
Fax 033 / 483333
Österreich
Rovert Bosch AG
Postfach 146
A-1011 Wien
Tel. 01 - 797224500
Fax 01 - 797224599
Pirngruber
Elektronik Service & Vertriebsges. m.b.H
Dauphinestr. 226
A-4030 Linz
Tel. 0732 / 387282-0
Fax 0732 / 387282-20
Polen
PPHU PAROS Sp. zo.o.
ul. Ustronie 1-3
PL - 50-302 Wroclaw
Tel. 071 - 3222014, 3222017
Fax 071 - 3221061
Portugal
Videoacustica
Comercio e Representacoes de
Equipamentos Electronicos S.A.
Estrada Circunvalacao
Apartado 3127
P-1301-902 Lisboa Codex
Tel. [phone]
Fax [phone]
Schweden
Elektronikservice i GBG AB
Fridkullagatan 23
S - 41262 Göteborg
Tel. 031 - 811486
Fax 031 - 812770
Schweiz
Telion AG
Rütistrasse 26
CH - 8952 Schlieren
Tel. 01 - 7321511
Fax 01 - 7301502
Slowenien
Jadran Export Import D.D.
Partizanska cesta 69
SL - 6210 Sezana
Tel. 067 - 391402, 391406
Fax 067 - 391400
Spanien & Kanarische Inseln
Gaplasa S.A.
Conde de Torroja, 25
E - 28022 Madrid
Tel. 01 - 7482960
Fax 01 - 3291675
Tschechische Republik
Tipa Spol. SR. O.
Dolní námestí 9
CZ - 74601 Opava
Tel. 0653 - 624404
Fax 0653 - 623147
Ungarn
Annex
Kereskedelmi Részvénytársaság
H - 1119 Budapest, Féhérvári út. 44
Tel. 01 - 2066000
Fax 01 - 3826040
Zypern
Pangratis Liveras & Son LTD
Liveras Building
7 Ajax Street
Saint Omologite
CY-Nicosia
Tel. [phone]
Fax [phone], 667936
Loewe Service
Übersee •Overseas
Australien
International Dynamics
(Wholesale)PTY LTD
78-80 Herald Street
AUS-Cheltenham, Victoria 3192
Tel. 03 - 95850522
Fax 03 - 95850179
lsrael
RIF LTD
29, lzhak Sade Street
IRS - Tel Aviv 67213
Tel. 03 - 6240555
Fax 03 - 6240303
Ver. Arabische Emirate
Super Trading Establishment
P. O. Box 46409
Abu Dhabi, United Arab Emirates
Tel. 02 - 748787
Fax 02 - 741156
USA
SENSORY SCIENCE CORP.
7835 East McClain Drive,
Scottsdale,
Arizona
USA 85260-1732
Tel. 602 - 9983400
Fax 602 - 9514404
8-20-2007
Änderungen vorbehalten
Subject to modification
Modification réserves
Con riserva di modifiche
Reservado el derecho a introducir modificaciones
Wijzigingen voorbehouden
ˇ
ˇ

CONTENTS
SECTION 1.........SUMMARY
SECTION 2.........CABINET & MAIN CHASSIS
SECTION 3.........ELECTRICAL
SECTION 4.........RS-02A LOADER PART
SECTION 5.........REPLACEMENT PARTS LIST

1-2
SECTION 1
SUMMARY
CONTENTS
NEW FUNCTIONS OF DVB-T/HDD/DVD RECORDER...................................................................1-3
PRODUCT SAFETY SERVICING GUIDELINES FOR
DVB-T/HDD/DVD RECORDER PRODUCTS.......................................................................................1-4
SERVICING PRECAUTIONS....................................................................................................................1-5
• GENERAL SERVICING PRECAUTIONS
• INSULATION CHECKING PRODEDURE
• ELECTROSTATICALLY SENSITIVE (ES) DEVICES
SERVICE INFORMATION FOR EEPROM IC SETTING..................................................................1-6
SPECIFICATIONS ........................................................................................................................................1-7

1-3
NEW FUNCTIONS OF DVB-T/HDD/DVD RECORDER
• HDMI
HDMI IS THE SPECIFICATION FOR THE HIGH-DEFINITION MULTIMEDIA INTERFACE. HDMI IS PROVIDED
FOR TRANSMITTING DIGITAL TELEVISION AUDIOVISUAL SIGALS FROM HDD-DVD RECODER TO
TELEVISION SETS, OTHER VIDEO DISPLAYS. HDMI CAN CARRY HIGH QUALITY MULTI-CHANNEL AUDIO
DATA AND CAN CARRY ALL STANDARD AND HIGH DEFINITION CONSUMER ELECTRONICS VIDEO
FORMATS. CONTENT PROTECTION TECHNOLOGY IS AVAILABLE. HDMI CAN ALSO CARRY CONTROL
AND STATUS INFORMATION IN BOTH DIRECTIONS.
<< OPERATING >>
AUDIO, VIDEO AND AUXILIARY DATA IS TRANSMITTED ACROSS THE THREE TMDS DATA CHANNELS.
THE VIDEO PIXEL CLOCK IS TRANSMITTED ON THE TMDS CLOCK CHANNEL AND USED BY THE
RECEIVER AS A FREQUENCY REFERENCE FOR DATA RECOVERY ON THE THREE TMDS DATA
CHANNELS.
VIDEO DATA IS CARRIED AS A SERIES OF 24-BIT PIXELS ON THE THREE TMDS DATA CHANNELS.
TMDS ENCODING CONVERTS THE 8BIT PER CHANNEL INTO THE 10BIT DC-BALANCED.
VIDEO PIXEL RATES CAN RANGE FROM 25MHz TO 165MHz. THE VIDEO PIXELS CAN BE ENCODED IN
EITHER RGB, YCbCr 4:4:4 OR YCbCr 4:2:2 FORMATS. IN ALL THREE CASES, UP TP 24 BITS PER PIXEL
CAN BE TRANSFERRED.
FAST DUBBING
DUBBING MEANS A COPYING FUNCTION BETWEEN HDD TO DVD DISCS.
COPYING BETWEEN HDD TO DVD IS A COMPLETELY DIGITAL PROCESS AND THEREFORE INVOLVES
NO LOSS OF QUALITY IN THE AUDIO OR VIDEO. SO THIS MEANS THAT COPYING CAN BE CARRIED OUT
AT THE MAXIMUM SPEED POSSIBLE.
<< DUBBING SPEED RATE >>
NORMAL DUBBING : SPEED RATE MAX X1
FAST DUBBING : SPEED RATE MAX X4
WHEN FAST DUBBING FROM HDD TO DVD, THE SPEED OF COPYING DEPENDS ON THE RECODING
MODE AND THE KIND OF USING THE DVD DISC, AND THIS MODE IS NOT AVAILABLE FOR EDITED VIDEO
TITLE IN HDD.
WHEN FAST DUBBING FROM DVD TO HDD, ONLY AVAILABLE WHEN COPYING VR MODE DISC(DVD-RW)
TO HDD, AND ONLY NORMAL DUBBING AVAILABLE WHEN COPYING VIDEO MODE DISC(DVD+RW/RW,
DVD-R) TO HDD.

1-4
PRODUCT SAFETY SERVICING GUIDELINES FOR
DVB-T/HDD/DVD RECORDER PRODUCTS
IMPORTANT SAFETY NOTICE
This manual was prepared for use only by properly trained audio-video service
technicians.
When servicing this product, under no circumstances should the original design be
modified or altered without permission from LOEWE. All components should be
replaced only with types identical to those in the original circuit and their physical
location, wiring and lead dress must conform to original layout upon completion of
repairs.
Special components are also used to prevent x-radiation, shock and fire hazard.
These components are indicated by the letter “x” included in their component
designators and are required to maintain safe performance. No deviations are
allowed without prior approval by LOEWE.
Circuit diagrams may occasionally differ from the actual circuit used. This way,
implementation of the latest safety and performance improvement changes into the
set are not delayed until the new service literature is printed.
CAUTION : Do not attempt to modify this product in any way. Never perform
customized installations without manufacturer’s approval. Unauthorized
modifications will not only void the warranty, but may lead to property damage or user
injury.
Service work should be performed only after you are thoroughly familiar with these
safety checks and servicing guidelines.
GRAPHIC SYMBOLS
The exclamation point within an equilateral triangle is intended to alert
the service personnel to important safety information in the service
literature.
The lightning flash with arrowhead symbol within an equilateral
triangle is intended to alert the service personnel to the presence of
noninsulated “dangerous voltage” that may be of sufficient magnitude
to constitute a risk of electric shock.
The pictorial representation of a fuse and its rating within an equilateral
triangle is intended to convey to the service personnel the following
fuse replacement caution notice:
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF
FIRE, REPLACE ALL FUSES WITH THE SAME TYPE AND
RATING AS MARKED NEAR EACH FUSE.
SERVICE INFORMATION
While servicing, use an isolation transformer for protection from AC line shock. After
the original service problem has been corrected, make a check of the following:
FIRE AND SHOCK HAZARD
1. Be sure that all components are positioned to avoid a possibility of adjacent
component shorts. This is especially important on items trans-ported to and from
the repair shop.
2. Verify that all protective devices such as insulators, barriers, covers, shields, strain
reliefs, power supply cords, and other hardware have been reinstalled per the
original design. Be sure that the safety purpose of the polarized line plug has not
been defeated.
3. Soldering must be inspected to discover possible cold solder joints, solder
splashes, or sharp solder points. Be certain to remove all loose foreign particles.
4. Check for physical evidence of damage or deterioration to parts and components,
for frayed leads or damaged insulation (including the AC cord), and replace if
necessary.
5. No lead or component should touch a high current device or a resistor rated at 1
watt or more. Lead tension around protruding metal surfaces must be avoided.
6. After reassembly of the set, always perform an AC leakage test on all exposed
metallic parts of the cabinet (the channel selector knobs, antenna terminals,
handle and screws) to be sure that set is safe to operate without danger of
electrical shock. DO NOT USE A LINE ISOLATION TRANSFORMER DURING
THIS TEST. Use an AC voltmeter having 5000 ohms per volt or more sensitivity
in the following manner: Connect a 1500 ohm, 10 watt resistor, paralleled by a .15
mfd 150V AC type capacitor between a known good earth ground water pipe,
conduit, etc.) and the exposed metallic parts, one at a time. Measure the AC
voltage across the combination of 1500 ohm resistor and .15 mfd capacitor.
Reverse the AC plug by using a non-polarized adaptor and repeat AC voltage
measurements for each exposed metallic part. Voltage measured must not
exceed 0.75 volts RMS. This corresponds to 0.5 milliamp AC. Any value
exceeding this limit constitutes a potential shock hazard and must be corrected
immediately.
TIPS ON PROPER INSTALLATION
1. Never install any receiver in a closed-in recess, cubbyhole, or closely fitting shelf
space over, or close to, a heat duct, or in the path of heated air flow.
2. Avoid conditions of high humidity such as: outdoor patio installations where dew
is a factor, near steam radiators where steam leakage is a factor, etc.
3. Avoid placement where draperies may obstruct venting. The customer should also
avoid the use of decorative scarves or other coverings that might obstruct
ventilation.
4. Wall- and shelf-mounted installations using a commercial mounting kit must follow
the factory-approved mounting instructions. A product mounted to a shelf or
platform must retain its original feet (or the equivalent thickness in spacers) to
provide adequate air flow across the bottom. Bolts or screws used for fasteners
must not touch any parts or wiring. Perform leakage tests on customized
installations.
5. Caution customers against mounting a product on a sloping shelf or in a tilted
position, unless the receiver is properly secured.
6. A product on a roll-about cart should be stable in its mounting to the cart.
Caution the customer on the hazards of trying to roll a cart with small casters
across thresholds or deep pile carpets.
7. Caution customers against using extension cords. Explain that a forest of
extensions, sprouting from a single outlet, can lead to disastrous consequences to
home and family.

1-5
SERVICING PRECAUTIONS
CAUTION: Before servicing the DVB-T/HDD/DVD RECORDER
covered by this service data and its supplements and
addends, read and follow the SAFETY PRECAUTIONS.
NOTE: if unforeseen circumstances create conflict between
the following servicing precautions and any of the safety
precautions in this publication, always follow the safety
precautions.
Remember Safety First:
General Servicing Precautions
1. Always unplug the DVB-T/HDD/DVD RECORDER AC
power cord from the AC power source before:
(1) Removing or reinstalling any component, circuit board,
module, or any other assembly.
(2) Disconnecting or reconnecting any internal electrical
plug or other electrical connection.
(3) Connecting a test substitute in parallel with an
electrolytic capacitor.
Caution: A wrong part substitution or incorrect polarity
installation of electrolytic capacitors may result in an
explosion hazard.
2. Do not spray chemicals on or near this DVB-T/HDD/DVD
RECORDER or any of its assemblies.
3. Unless specified otherwise in this service data, clean
electrical contacts by applying an appropriate contact
cleaning solution to the contacts with a pipe cleaner, cotton-
tipped swab, or comparable soft applicator.
Unless specified otherwise in this service data, lubrication of
contacts is not required.
4. Do not defeat any plug/socket B+ voltage interlocks with
which instruments covered by this service manual might be
equipped.
5. Do not apply AC power to this DVB-T/HDD/DVD RECORDER
and/or any of its electrical assemblies unless all solid state
device heat sinks are correctly installed.
6. Always connect the test instrument ground lead to an
appropriate ground before connecting the test instrument
positive lead. Always remove the test instrument ground
lead last.
Insulation Checking Procedure
Disconnect the attachment plug from the AC outlet and turn
the power on. Connect an insulation resistance meter (500V)
to the blades of the attachment plug. The insulation resistance
between each blade of the attachment plug and accessible
conductive parts (Note 1) should be more than 1Mohm.
Note 1: Accessible Conductive Parts include Metal panels,
Input terminals, Earphone jacks,etc.
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged
easily by static electricity. Such components commonly are
called Electrostatically Sensitive (ES) Devices. Examples of
typical ES devices are integrated circuits and some field effect
transistors and semiconductor chip components.
The following techniques should be used to help reduce the
incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor component
or semiconductor-equipped assembly, drain off any
electrostatic charge on your body by touching a known earth
ground. Alternatively, obtain and wear a commercially
available discharging wrist strap device, which should be
removed for potential shock reasons prior to applying power
to the unit under test.
2. After removing an electrical assembly equipped with ES
devices, place the assembly on a conductive surface such
as aluminum foil, to prevent electrostatic charge buildup or
exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder
ES devices.
4. Use only an anti-static solder removal device. Some solder
removal devices not classified as “anti-static” can generate
electrical charges sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate
an electrical charge sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective
package until immediately before you are ready to install it.
(Most replacement ES devices are packaged with leads
electrically shorted together by conductive foam, aluminum
foil, or comparable conductive material).
7. Immediately before removing the protective material from
the leads of a replacement ES device, touch the protective
material to the chassis or circuit assembly into which the
device will be installed.
Caution: Be sure no power is applied to the chassis or
circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged
replacement ES devices. (Normally harmless motion such
as the brushing together of your clothes fabric or the lifting
of your foot from a carpeted floor can generate static
electricity sufficient to damage an ES device.)

1-6
SERVICE INFORMATION FOR EEPROM IC SETTING
1. Press the END button on the remocon together with button on the front panel about 6 sec.
The picture on OSD will be as bellow :
Model : VIEWVISION DR+ DVB-T
2. To MOVE from OP1 (Option 1) to another option, press button on the remote control.
3. To CHANGE the option code, press button on the remote control.
4. To APPLY the option code, after change the option press OK button on remote control.
5. To INITIALIZE the system, press END button on the RMC together with button on the front panel about
±6 sec.
Note : This process will only clear the mapping channel and not delete on HDD.
6. To exit from the option code menu without initialize the system, just turn off the power and then turn on again.
OP1 : DA 11011010
OP2 : 71 01110001
OP3 : 31 00110001
OP4 : 43 01000011 Write OK
OP5 : 0A00001010 Press MP
OP6 : AE 10101110
OP7 : 24 00100100 Write : OK
OP8 : 85 10000101 E x i t : MP
OP9 : 04 00000100 Move : < >
OPA : 00 00000000 E d i t :
4
CHKSUM : 0071

1-7
SPECIFICATIONS
• GENERAL
Power requirements AC 200 ~ 240V, 50/60Hz
Power consumption 30W
Dimensions (approx.) 430 X 60 X 280mm (w x h x d) without foot
Net weight (approx.) 4.6kg
Operating temperature 5°C to 35°C
Operating humidity 5% to 90%
Television system Analog: PAL I, B/G, I/I, SECAM D/K, K1, SECAM L color system
Digital: DVB-T standard compliant
Recording format PAL
• RECORDING
Recording format DVD Video Recording, DVD-VIDEO
Recordable media HDD (250GB), DVD-ReWritable, DVD-Recordable, DVD+ReWritable,
DVD+Recordable, DVD+Recordable (Double Layer)
Recordable time DVD (4.7GB) : Approx. 1hour (XP mode), 2hours (SP mode),
4hours (LP mode), 6hours (EP mode)
DVD+R DL (8.5GB) : Approx. 1.8hour (XP mode),
3.6hours (SP mode), 7.3hours (LP mode), 11hours (EP mode)
HDD (250GB, MPEG2 Recording) :
Approx. 66hours (XP mode), 129hours (SP mode),
251hours (LP mode), 356hours (EP mode)
Video recording format
Sampling frequency 27MHz
Compression format MPEG2
Audio recording format
Sampling frequency 48kHz
Compression format Dolby Digital
• PLAYBACK
Frequency response DVD (PCM 48kHz) : 8Hz to 22kHz, CD : 8Hz to 20kHz
DVD (PCM 96kHz) : 8Hz to 44kHz
Signal-to-noise ratio More than 100dB (AUDIO OUT connector)
Harmonic distortion Less than 0.008% (AUDIO OUT connector)
Dynamic range More than 95dB (AUDIO OUT connector)
• INPUTS
ANTENNA IN Antenna input, 75ohms
VIDEO IN 1.0Vp-p 75ohms, sync negative, RCA jack x 1 / SCART x 2
AUDIO IN 2.0Vrms more than 47kohms, RCA jack (L, R) x 1 / SCART x 2
DV IN 4pin (IEEE 1394 standard)
USB IN 4pin (USB 1.1 standard)
• OUTPUTS
S-VIDEO OUT (Y) 1.0V (p-p), 75Ω, sync negative, Mini DIN 4-pin x 1
(C) 0.3V (p-p), 75Ω
COMPONENT VIDEO OUT (Y) 1.0V (p-p), 75Ω, sync negative, RCA jack x 1
(Pb)/(Pr) 0.7V (p-p), 75Ω, RCA jack x 2
HDMI video/audio output 19pin (HDMI standard, Type A)
Audio output (digital audio) 0.5V (p-p), 75Ω, RCA jack x 1
Audio output (optical audio) 3V(p-p), Optical connector x 1
Audio output (analog audio) 2.0Vrms (1kHz, 0dB), 600Ω, RCA jack (L, R) x 1 / SCART x 2

2-1
SECTION 2
CABINET & MAIN CHASSIS
CONTENTS
EXPLODED VIEWS .....................................................................................................................................2-2
1. CABINET AND MAIN FRAME SECTION ..................................................................................................2-2
2. DECK MECHANISM SECTION (RS-02A).................................................................................................2-3
3. PACKING ACCESSORY SECTION...........................................................................................................2-4

SVC purchase order caution
Key board is array coming timer board.
Purchase order board separately supply
incomprehensible.
Supply is possible in Location No A50
state in exploded views.
D
E
104
101
468
468
410
A53
A60
A26
A44
A52
462/463
250
462/463
462/463
MAIN & I/O BOARD
CABLE11
CABLE5
465
465
320
260
261A
261
261A
470
465
267
268
467
468
465
OPTIONAL PART
CABLE10
B
C
B
A
C
F
468
A47
SMPS
468
273
275
CABLE6
463
261
261
A
E
D
300
A43
280
A50
CABLE1
275
452
452
CABLE2
C
452
274
251
251A
2-2
EXPLODED VIEWS
1. CABINET AND MAIN FRAME SECTION

2-3
2. DECK MECHANISM SECTION (RS-02A)
RS-02A(DR-10H)
1034
1025
1041
1432
1437
1434
1032
1033
1038
1011
1432
1020
1036
1432
Main C.B.A
1001
1431
1003 1002
1026
A001
A60
1016
1433
1017
1013
1015
1012
1439
1047
1046
1014
OPTIONAL PART
1043 1045
1044
1042
A005
1018
1019 1018
1019
DR-10 : IN, SH ONLY DR-10 : PT ONLY
1043 1045
A005
1030

2-4
3. PACKING ACCESSORY SECTION
832 Disc
Bag
Packing
Packing
810 Accessory Assembly
808 Battery
Box
804
803
802
803
HDMI Cable
823
801 Owner's Manual
SCART Cable
821
RCA Plug(Black)
806

3-1
SECTION 3
ELECTRICAL
CONTENTS
ELECTRICAL TROUBLESHOOTING GUIDE ...........3-2
1. POWER SUPPLY ON SMPS BOARD..............3-2
2. POWER SUPPLY ON MAIN BOARD...............3-4
3. SYSTEM CIRCUIT PART ..................................3-9
4. DISC NOT RECOGNIZED.................................3-9
5.
WHEN PLAYING DISC, NO AUDIO OUTPUT ..........3-10
6. NO OPTICAL/DIGITAL OUTPUT ....................3-11
7. NO TUNER AUDIO OUTPUT..........................3-12
8. NO EXTERNAL AUDIO INPUT.......................3-13
9. NO RGB/COMPONENT VIDEO SIGNAL
WHEN PLAY DISC............................................3-14
10. NO COMPOSITE/S-VIDEO SIGNAL
WHEN PLAY DISC............................................3-15
11. NO TV, EXTERNAL INPUT VIDEO
SIGNAL..............................................................3-16
12. NO DV (IEEE1394)
INPUT (VIDEO/AUDIO) SIGNAL.....................3-17
13. NO DVB_T AUDIO/VIDEO OUTPUT..............3-18
WAVEFORMS..........................................................3-19
1. SYSTEM BLOCK..............................................3-19
2. VIDEO BLOCK (COLOR BAR INPUT)...........3-21
3. AUDIO BLOCK (1kHZ SINEWAVE INPUT) ..........3-22
4. SERIAL INTERFACE BLOCK
(BETWEEN MAIN AND I/O) ............................3-23
5. TUNER BLOCK ................................................3-24
6. HDMI BLOCK....................................................3-25
WIRING CONNECTION DIAGRAM...............3-26
1. WIRING CONNECTION DIAGRAM 1 ............3-26
2. WIRING CONNECTION DIAGRAM 2 ............3-27
3. WIRING CONNECTION DIAGRAM 3 ............3-28
BLOCK DIAGRAMS.............................................3-29
1. SMPS BLOCK DIAGRAM ...............................3-29
2. MAIN BLOCK DIAGRAM.................................3-30
3. POWER (MPEG) BLOCK DIAGRAM.............3-31
4. VIDEO IN BLOCK DIAGRAM..........................3-32
5. VIDEO OUT BLOCK DIAGRAM .....................3-33
6. AUDIO IN BLOCK DIAGRAM..........................3-34
7. AUDIO OUT BLOCK DIAGRAM .....................3-35
8. POWER I/O BLOCK DIAGRAM......................3-36
9. FLD TIMER BLOCK DIAGRAM ......................3-37
10. TIMER BLOCK DIAGRAM...............................3-38
CIRCUIT DIAGRAMS...........................................3-39
1. SMPS CIRCUIT DIAGRAM .............................3-39
2. POWER INTERFACE CIRCUIT DIAGRAM...3-41
3. MPEG CIRCUIT DIAGRAM.............................3-43
4. FLASH/DDR CIRCUIT DIAGRAM ..................3-45
5. RESET, 1394 & JPEG CIRCUIT DIAGRAM ..3-47
6. ATAPI CIRCUIT DIAGRAM..............................3-49
7. HDMI CIRCUIT DIAGRAM ..............................3-51
8. I/O µ-COM CIRCUIT DIAGRAM .....................3-53
9. SCART/RCA JACK CIRCUIT DIAGRAM .......3-55
10. AV DECODER CIRCUIT DIAGRAM ..............3-57
11. TIMER CIRCUIT DIAGRAM.............................3-59
12. KEY (POWER BUTTON)
CIRCUIT DIAGRAM.........................................3-61
CIRCUIT VOLTAGE CHART.............................3-63
PRINTED CIRCUIT DIAGRAMS .....................3-71
1. MAIN P.C.BOARD ............................................3-71
2. POWER P.C.BOARD .......................................3-75
3. TIMER & KEY P.C.BOARD..............................3-77
4. HDD JUNC P.C.BOARD ..................................3-78

Is the D127 normal?
3-2
ELECTRICAL TROUBLESHOOTING GUIDE
1. POWER SUPPLY ON SMPS BOARD
No .5.3VA
YES
Is the F101 normal? Replace the F101 (Use the same Fuse)
YES
NO
Is the BD101 normal? Replace the BD101
YES
NO
Is the R101 normal? Replace the R101
YES
NO
Is Vcc (13V - 27V) supplied
to IC101 Pin 2? Is the D102 normal?
YES
NO
Check or Replace the D102
Is the D128 normal? Replace the D128
YES
NO
Is there about 2.5V at the
IC103 Pin1? Replace the IC103
YES
NO
Is the IC102 normal? Replace the IC102
YES
NO
Is the D121 normal? Replace the D121
YES
NO
Is the D122 normal? Replace the D122
YES
NO
Is the D125 normal? Replace the D125
YES
NO
Replace the D127
YES
NO
Is the D124 normal? Replace the D124
YES
NO
Is the D126 normal? Replace the D126
YES
NO
Power Line of Main PCB is short
NO

3-3
No 12VL
Is the 13.5V supplied
to IC155 pin 1? Check or Replace the D124
YES
YES
NO
Is the IC155 pin4 “H”? Check the DVD CTL “H”
signal from µ-com
YES
NO
Check or Replace the IC155
No 5VL
Is the 5.5V supplied to
IC156 pin 1? Check or Replace the D125
YES
YES
NO
Is the IC156 pin4 “H”? Check the DVD CTL “H”
signal from µ-com
YES
NO
Check or Replace the IC156

3-4
No 12VT
2. POWER SUPPLY ON MAIN BOARD
Check D124 on SMPS
board and replace
YES
YES
NO
Is the Vcc (14V) supplied to
QP07 collector?
Check QP07 and replace
YES
NO
Is there about 12.5V at
QP02 & QP07 base?
Check D126 on SMPS
board and replace
YES
NO
Is the Vcc (33V) supplied
to QP01 emiter?
Check QP01 and replace
YES
NO
Is there about 0V at
QP01 base?
Check the “TIMER_H”
signal from µ-COM
YES
NO
Is there about 5V at RP10
and 0.7V at QP02 base?
Check QP02 and replace

3-5
No 5VT
Check QP06 and replace
Is the Vcc (5.3V)
supplied to QP05 emiter? Check 5.3VA on SMPS board
YES
YES
NO
Is there about 0V
QP06 collector? Check QP05 and replace
YES
NO
Is there about 5V
at RP14 and 0.7V
at QP06 base?
Check the “TIMER H”
signal from µ-COM
YES
NO
No 5V
Check the ICP01 and replace
Is there about 5.3V at
the ICP01 Pin 1? Check 5.3VA on SMPS board
YES
YES
NO
Is there about 4V ~ 5V at
the ICP01 Pin 4?
Check the “PWR CTL H”
signal from µ-COM
YES
NO

3-6
No 2.5V
Is there about 3V ~ 3.8V
at the ICP08 Pin 1?
Check D154 and
D127 on SMPS board
YES
YES
NO
Is there about 4V ~ 5V at
the ICP08 Pin 3?
Check the “PWR CTL H”
signal from µ-COM
YES
NO
Check the ICP08 and replace
No 3.3V
Is there about 3.8V at
the ICP02 Pin 1?
Check D127 on SMPS
board and replace
YES
YES
NO
Is there about 4V ~ 5V at
the ICP02 Pin 2?
Check the “PWR CTL H”
signal from µ-COM
YES
NO
Check the ICP02 and replace

3-7
No SW_5.3VA
Is the Vcc (5.3V)
supplied to QP09 emiter? Check 5.3VA on SMPS board
YES
YES
NO
Is there about 0V
at RP24 and RP25?
Check the “STANBY H”
signal from µ-COM
YES
NO
Check QP09 and replace
No SW_FD(+)
Is the Vcc (FD+) supplied
to QP11 collector?
Check D121 on SMPS
board and replace
YES
YES
NO
Is there about 5.3V at
R184 and QP10 collector? Check QP11 and replace
YES
NO
Is the VCC (5.3V)
supplied to QP10 emiter? Check 5.3VA on SMPS board
YES
NO
Is there about 0V
at QP10 base?
Check the “STANBY H”
signal from µ-COM
YES
NO
Check QP10 and replace

3-8
No 1.8V
There is 1,8V at ICP03 Pin 2, 4
Is the Vcc (3.3V)
supplied to Pin 3 ICP03? Check 3.3V power supply
YES
YES
NO
ICP03 defect
NO
No 1.25V
Check the IC400 and replace
Is there about 3.3V at
the IC400 Pin 2? Check 3.3V on Main board
YES
YES
NO
Is there about 3.3V at
the IC400 Pin 4?
Check the “PWR CTL H”
signal from µ-COM
YES
NO
Check the D400 or ICP02 Pin 2.
NO