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SERVICE MANUAL
High Definition
Television Receiver
MODEL : LST-5100P
SERVICE MANUAL
MODEL : LST-5100P
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS"
IN THIS MANUAL.
MAY, 2005
P/NO : 3829RVP050G Printed in Korea
SECTION 1
SUMMARY
CONTENTS
PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS............1-2
SERVICING PRECAUTIONS....................................................................................1-3
SPECIFICATIONS .....................................................................................................1-4
1-1
PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS
IMPORTANT SAFETY NOTICE A.C. Voltmeter
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 Zenith Electronics
Corporation. 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.
0.15uF
Special components are also used to prevent x-radiation, shock and fire haz- Place this probe
Good Earth Ground
ard. These components are indicated by the letter "x" included in their compo- such as the Water
on each exposed
nent designators and are required to maintain safe performance. No deviations 1500 OHM metal part.
Pipe, Conduit, etc.
are allowed without prior approval by Zenith Electronics Corporation.
Circuit diagrams may occasionally differ from the actual circuit used. This way, 10 WATT
implementation of the latest safety and performance improvement changes
TIPS ON PROPER INSTALLATION
into the set is not delayed until the new service literature is printed.
1. Never install any receiver in a closed-in recess, cubbyhole, or closely fitting
CAUTION: Do not attempt to modify this product in any way. Never perform
shelf space over, or close to, a heat duct, or in the path of heated air flow.
customized installations without manufacturer's approval. Unauthorized modi-
fications will not only void the warranty, but may lead to property damage or 2. Avoid conditions of high humidity such as: outdoor patio installations where
user injury. dew is a factor, near steam radiators where steam leakage is a factor, etc.
Service work should be performed only after you are thoroughly familiar with 3. Avoid placement where draperies may obstruct venting. The customer
these safety checks and servicing guidelines. should also avoid the use of decorative scarves or other coverings that
might obstruct ventilation.
GRAPHIC SYMBOLS
4. Wall- and shelf-mounted installations using a commercial mounting kit must
The exclamation point within an equilateral triangle is intended to
follow the factory-approved mounting instructions. A product mounted to a
alert the service personnel to important safety information in the
shelf or platform must retain its original feet (or the equivalent thickness in
service literature.
spacers) to provide adequate air flow across the bottom. Bolts or screws
The lightning flash with arrowhead symbol within an equilateral tri- used for fasteners must not touch any parts or wiring. Perform leakage tests
angle is intended to alert the service personnel to the presence of on customized installations.
noninsulated "dangerous voltage" that may be of sufficient magni-
5. Caution customers against mounting a product on a sloping shelf or in a tilt-
tude to constitute a risk of electric shock.
ed position, unless the receiver is properly secured.
The pictorial representation of a fuse and its rating within an equi-
6. A product on a roll-about cart should be stable in its mounting to the cart.
lateral triangle is intended to convey to the service personnel the
Caution the customer on the hazards of trying to roll a cart with small cast-
following fuse replacement caution notice:
ers across thresholds or deep pile carpets.
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK
7. Caution customers against using extension cords. Explain that a forest of
OF FIRE, REPLACE ALL FUSES WITH THE SAME TYPE AND
extensions, sprouting from a single outlet, can lead to disastrous conse-
RATING AS MARKED NEAR EACH FUSE.
quences to home and family.
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 fol-
lowing:
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 par-
ticles.
4. Check for physical evidence of damage or deterioration to parts and compo-
nents, 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 TRANS-
FORMER 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 metal-
lic 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 consti-
tutes a potential shock hazard and must be corrected immediately.
1-2
SERVICING PRECAUTIONS
CAUTION: Before servicing the High Definition Television Electrostatically Sensitive (ES) Devices
Receiver covered by this service data and its supplements Some semiconductor (solid state) devices can be damaged
and addends, read and follow the SAFETY PRECAUTIONS. easily by static electricity. Such components commonly are
NOTE: if unforeseen circumstances create conflict between called Electrostatically Sensitive (ES) Devices. Examples of
the following servicing precautions and any of the safety pre- typical ES devices are integrated circuits and some field
cautions in this publications, always follow the safety pre- effect transistors and semiconductor chip components.
cautions. The following techniques should be used to help reduce the
Remember Safety First: incidence of component damage caused by static electricity.
General Servicing Precautions 1. Immediately before handling any semiconductor compo-
1. Always unplug the High Definition Television Receiver AC nent or semiconductor-equipped assembly, drain off any
power cord from the AC power source before: electrostatic charge on your body by touching a known
(1) Removing or reinstalling any component, circuit board, earth ground. Alternatively, obtain and wear a commer-
module, or any other assembly. cially available discharging wrist strap device, which
(2) Disconnecting or reconnecting any internal electrical should be removed for potential shock reasons prior to
plug or other electrical connection. applying power to the unit under test.
(3) Connecting a test substitute in parallel with an elec-
trolytic capacitor. 2. After removing an electrical assembly equipped with ES
Caution: A wrong part substitution or incorrect devices, place the assembly on a conductive surface such
polarity installation of electrolytic capacitors may result as aluminum foil, to prevent electrostatic charge buildup or
in an explosion hazard. exposure of the assembly.
2. Do not spray chemicals on or near this High Definition 3. Use only a grounded-tip soldering iron to solder or unsolder
Television Receiver or any of its assemblies. ES devices.
3. Unless specified otherwise in this service data, clean 4. Use only an anti-static solder removal device. Some
electrical contacts by applying an appropriate contact solder removal devices not classified as "anti-static" can
cleaning solution to the contacts with a pipe cleaner, generate electrical charges sufficient to damage ES
cotton-tipped swab, or comparable soft applicator. devices.
Unless specified otherwise in this service data, lubrication
of contacts is not required. 5. Do not use freon-propelled chemicals. These can
generate an electrical charge sufficient to damage ES
4. Do not defeat any plug/socket B+ voltage interlocks with devices.
which instruments covered by this service manual might
be equipped. 6. Do not remove a replacement ES device from its protec-
tive package until immediately before you are ready to
5. Do not apply AC power to this High Definition Television install it. (Most replacement ES devices are packaged with
Receiver and / or any of its electrical assemblies unless all leads electrically shorted together by conductive foam,
solid-state device heat sinks are correctly installed. aluminum foil,or comparable conductive material).
6. Always connect the test instrument ground lead to an
appropriate ground before connecting the test instrument 7. Immediately before removing the protective material from
positive lead. Always remove the test instrument ground the leads of a replacement ES device, touch the protective
lead last. material to the chassis or circuit assembly into which the
device will be installed.
Insulation Checking Procedure
Disconnect the attachment plug from the AC outlet and turn Caution: Be sure no power is applied to the chassis or
the power on. Connect an insulation resistance meter (500V) circuit, and observe all other safety precautions.
to the blades of the attachment plug. The insulation resis-
tance between each blade of the attachment plug and acces- 8. Minimize bodily motions when handling unpackaged
sible conductive parts (Note 1) should be more than 1M- replacement ES devices. (Normally harmless motion such
ohm. as the brushing together of your clothes fabric or the lifting
Note 1: Accessible Conductive Parts include Metal panels, of your foot from a carpeted floor can generate static elec-
Input terminals, Earphone jacks,etc. tricity sufficient to damage an ES device.)
1-3
SPECIFICATIONS
Television System DVB-T Australian Standard Compliant
Frequency Range VHF : 177.5 to 226.5 MHz
UHF : 529.5 to 816.5 MHz
Input/Output
RF Inputs ANT IN (1) 75 ohm unbalanced
ANT Loop Out Out To TV (1)
DVI Output DVI-HDTV Out (1), DVI-D Single Link connector
1080i, 720p, 576p digital RGB
Component Video Output Component Out (1 Set), Typical RCA type Jack connectors
1080i, 720p, 576p, 576i YPbPr
RGB Output RGB Out (1), 15-pin connector
1080i, 720p, 576p RGB
S-Video Output S-Video Out (1), 4-pin Mini-DIN
576i Y/C
Video Output Video Out (1), Typical RCA type Jack connector
576i Composite
Digital Audio Output Coaxial, Optical (Dolby Digital, PCM output)
Analog Audio Output Audio Out (2) (Variable Output Level)
Authorized Service Port 9-pin Serial Port (1)
Dimension (W x H X D) 360 x 60 x 262 mm
Weight 3.5 kg
Power Requirements AC 110-240V, 50/60Hz
Power Consumption 15W
Environment
Humidity 0 to 99 percent non condensing
Storage Temperature -20 to 60 degrees Celsius
Operating Temperature 0 to 40 degrees Celsius
1-4
SECTION 2
CABINET & MAIN CHASSIS
CONTENTS
EXPLODED VIEWS .....................................................................................................................2-2
1. Cabinet and Main Frame Section ...........................................................................................2-2
2. Packing Accessory Section ....................................................................................................2-3
2-1
EXPLODED VIEWS
1. Cabinet and Main Frame Section
NOTE) Refer to "SECTION 4 REPLACEMENT
PARTS LIST" in order to look for the
part number of each part.
462
462
300
466
A44
4
457
250
465
462
457
265
320
261
A51
457
463
3
261
463
MAIN
260
A46
463
261
2
SMPS
452
280
A47
A50
A43
1
A B C D
2-2
2. Packing Accessory Section
808 BATTERY
820 CABLE,COAXIAL 3WAY RCA
900 REMOCON
813 PLUG ASS'Y 3WAY
801 INSTRUCTION ASSEMBLY
806 CABLE
803 PACKING (LF) 804 BAG
803 PACKING (RF)
802 BOX CARTON
2-3
SECTION 3
ELECTRICAL
CONTENTS
ELECTRICAL TROUBLESHOOTING GUIDE ..................................................................................................3-2
1. AUDIO TROUBLESHOOTING FLOW .....................................................................................................3-2
2. VIDEO TROUBLESHOOTING FLOW......................................................................................................3-7
3. TUNER TROUBLESHOOTING FLOW (COFDM)..................................................................................3-19
BLOCK DIAGRAM ..........................................................................................................................................3-22
1. BLOCK DIAGRAM_1 .............................................................................................................................3-22
2. BLOCK DIAGRAM_2 .............................................................................................................................3-23
3. BLOCK DIAGRAM_3 .............................................................................................................................3-24
4. OPERA BOARD BLOCK DIAGRAM .....................................................................................................3-25
CIRCUIT DIAGRAMS ......................................................................................................................................3-26
1. POWER CIRCUIT DIAGRAM.................................................................................................................3-26
2. CPU & SYSTEM MEMORY & BOOT STRAPPING CIRCUIT DIAGRAM.............................................3-28
3. HD-2 & HD-2 MEMPRY & PLL CIRCUIT DIAGRAM ............................................................................3-30
4. DVI CIRCUIT DIAGRAM ........................................................................................................................3-32
5. EXTERNAL I/O BOARD & ETHER BOARD & JTAG CIRCUIT DIAGRAM .........................................3-34
6. MOOBONG & FRONT CIRCUIT DIAGRAM..........................................................................................3-36
7. I2C HUB & MAX232 & LEVEL SHIFT & POWER CIRCUIT DIAGRAM................................................3-38
8. VIDEO CIRCUIT DIAGRAM ...................................................................................................................3-40
9. AUDIO & OPTICAL OUT CIRCUIT DIAGRAM......................................................................................3-42
10. TUNER CIRCUIT DIAGRAM................................................................................................................3-44
11. POWER CIRCUIT DIAGRAM...............................................................................................................3-46
PRINTED CIRCUIT DIAGRAMS .....................................................................................................................3-48
1. MAIN PRINTED CIRCUIT DIAGRAMS..................................................................................................3-48
2. MAIN I/O CIRCUIT DIAGRAM(TOP VIEW) ...........................................................................................3-50
3. MAIN I/O CIRCUIT DIAGRAM(BOTTOM VIEW) ...................................................................................3-52
4. POWER PRINTED CIRCUIT DIAGRAM................................................................................................3-54
5. TIMER PRINTED CIRCUIT DIAGRAM ..................................................................................................3-56
3-1
ELECTRICAL TROUBLESHOOTING GUIDE
1. AUDIO TROUBLESHOOTING FLOW
(1) NO AUDIO OUTPUT
1) CHECK IC400 AND SURROUNDINGS
NO
5V is supplied to IC400(9)? Check the Power Supply Part.
YES
3.072MHz clock is input to IC400(2)? NO Check 12.2880MHz Clock output at
Fig.01 IC202(H5).
YES
48KHz clock is output from IC400(3)? NO
Check 48KHz Clock ouput at IC202(G5)
Fig.02
YES
12.288MHz clock is output from IC400(4)? NO Check 12.288MHz Clock ouput at
Fig.03 IC202(H3)
YES
NO
Data Signal is input to IC400(1)? Fig.04 Check Data Signal ouput at IC202(G3)
YES
NO
IC400(8) is grounded? Check soldering.
YES
Analog Audio Signal from IC400(10,7)?
Fig.04
3-2
Fig.01 3.072MHz clock
Fig.02 48KHz clock
Fig.03 12.2880MHz Fig.04 Data Signal
3-3
2) CHECK IC401 AND SURROUNDINGS
NO
9V is supplied to IC401(8)? Check Power Supply Part
YES
Analog audio signal is output from NO
Check IC401 and surroundings
IC401(1, 7)? Fig.05
3) CHECK OUTPUT JACK AND SURROUNDINGS
Check CN300(VARIABLE_L,VARIABLE_R,MONITOR_L,MONITOR_R)
And their surroundings
Fig.05 Analog Audio Signal
3-4
(2) NO OPTICAL OUTPUT AUDIO
SPDIF pulse is output from IC202(F3)? NO
Fig.06 Check IC202 and surroundings
YES
Check JK400 and surrounding
(3) NO COAXIAL OUTPUT AUDIO
5V is supplied to Q400(3)? NO
Check Power Supply Part
YES
SPDIF pulse is output from IC202(F3)? NO
Fig.06 Check IC202 and surroundings
YES
SPDIF pulse is output from R409? Fig.7 NO
Check R409 and surroundings
YES
Check JK300(7) and their surroundings
Fig.06 SPDIF PULSE from IC202(F3)
3-5
Fig.07 SPDIF PULSE from R409
3-6
2. VIDEO TROUBLESHOOTING FLOW
Start
YES
No HV sync OUT? (A)
YES
Any problem in OSD ? (B)
YES
Any problem in main picture? (C)
NO
YES
Any problem in AV out? (D)
NO
End
3-7
(A)
NO
Is Power supplied to S_IC204 ? Check S_L200 & S_IC204(11,15) (3.3V)
YES
Is VDP clock S_IC204(7) supplied to NO Check S_IC204(8) in SD and HD respec-
HD2 ? FIG.01 tively.
YES NG
Check S_IC204(1) 27MHz clock. FIG.02
When It chages Display Format Key to RGB or NO If HV sync exists in O_CN300 (13,14)
DVI side and check HV sync. Any problem ? (FIG.03)(FIG.04)
then check whether S_IC303(1) is low.
NO If not, check O_IC304(7).
End
3-8
XIN
FIG.02 27MHz clock
PH_VDPCLK
FIG.01 VDP clock
3-9
VSYNC_OUT
FIG.04 V-sync signal
HSYNC_OUT
FIG.03 H-sync signal
3-10
(B)
YES No OSD is not a problem.
Check whether analog mute ON? Check DVI output.
NO
Check analog buffers. O_IC301 for 576i, NG
Check whether +A12V is supplied.
O_IC300 for component YPbPr or RGB analog
OK
Jump to (A) flow
(C)
Check input stream existence. YES
check TUNER(O_TU601 ) block. FIG.05
Any problem?
NO
YES
Any problem in selecting DVB? Check voltage of O_TU601(12) =>3.3V
NO
YES Check signal strength.
Any decoding problem? If OK, check system clock 27MHz.
S_IC204(14)
NO OK
Check HD 2 chip Interrupt
End FIG.06
3-11
Input Stream
FIG.05 Input Stream to O_TU601
HC_IRQ
FIG.06 Interrupt Signal
3-12
Component Y
Component Y Output O_JK300(1)
Component Pr
Component Pb
Component Pb Output O_JK300(3)
Component PR Output O_JK300(2)
3-13
RGB R Output O_CN300(1)
RGB G Output O_CN300(2)
RGB B Output O_CN300(3)
3-14
(D)
Check analog buffers.
O_IC301 for 576i.
Jump to (A) flow
Composite
Composite Output O_JK300(13)
S-VIDEO Y
Composite Output O_JK301(1)
Composite Output O_JK301(3)
3-15
START
NO
Is DVI cable connected? Connect DVI cable
YES
NO
Is Display Format front pane DVI side ? Change to DVI side
YES
NO Use other DVI cable or Turn on the monitor
Is The emitter of S_Q301 high volt ?
that is connected with DVI cable.
YES
NO
Is S_IC300(11) high volt ? Change the DVI chip
YES
NO Check S_IC300(57(IDCK+), 2(DE),
Is 576P picture OK? 4(HSYNC), 5(VSYNC)) The IDCK_ clock
shall be 27MHz. Refer to Fig.1
YES
NO Check S_IC300(57(IDCK+), 2(DE), 4(HSYNC),
Are 720P & 1080I picture OK? 5(VSYNC)) The IDCK_ clock shall be
74.25MHz. Refer to Fig2, Fig3 and Fig4.
YES
END
3-16
FIG.03
DVI output at 1080i even field
FIG.02 FIG.04
DVI output at 720p DVI output at 1080i odd field
3-17
FIG.13
27MHz NTSC encoder pixel clock
3-18
3. TUNER TROUBLESHOOTING FLOW (COFDM)
Start
YES
(A)
Power is supplied normally? NO Check the power line referring the circuit
diagram
YES
IIC is operated normally? NO Check the connection between
(TUNER_SDA, SCL) tuner(TU601) and IIC line/power /
peripheral parts
YES
The signal of TP monitoring is operated
normally? (HIGH) (using Oscilloscope NO Check the operation of
and signal strength on Menu) TU601(29)_PH_ERR.
YES
The signal from RF Ant. is detected?
(using the split including DC block port NO
Check the connection of tuner
and Spectrum Analyzer)
YES
Tuner's error flag(TU601(29)) is operated
normally? (using Oscilloscope) High : NO
Check the state of satellite signal
Normal, Low : Error
YES
End
3-19
(A)
Start
NO
The TU601(4) power pin is 5V ? . Check the power line
YES
NO
TU601(4) is 5V? Check the 5V power line.
YES
NO
On the signal strength of menu Select. Check connection on the board,
YES
End
3-20
FIG.13
27MHz NTSC encoder pixel clock
3-21
SPDIF Y/C RGB
RS-232C
RS- DVI-D Connector
DVI Ctrl.
(SIL 170) DT
SDRAM
(2Mx32b)
DENC 50 VU
RS-232C P
1. BLOCK DIAGRAM_1
A/V AMP
(READY) I BN
N
IE
SDRAM
(2Mx32b)
TR
TP Demux
Video Decoder
Audio Decoder
Format Converter
VDP
3-22
Analog (LGDT1102C
A/V : HD-2.3)
IN Flash ROM
50 MBM29LV160
(Ready) P (16Mbit*1EA)
BLOCK DIAGRAM
I
SDRAM
N
IS42S32400A
(4M X 32bit)
SMPS
CPU
(S3C2410A)
Front
CVBS, L/R D IO Pin Assign
YPbPr, L/R RGB V (Top View) INTERFACE
Y/C COAX OPT RS-232C I Pin Assign
(Top View)
HV_G 50 49 PC_RxD0
RS-232
HV_B 48 47 CP_TxD0
HV_R 46 RGB 45 /CP_RESET
50 49
HV_HSYNC 44 OUT 43 PH_DATA_IN
HV_VSYNC 42 41 PH_LRCK
VH_EXT_CLK 40 39 PH_SCK
+5V 38 37 VH_FIELD
PWR
AGND 36 35 PH_HD
2. BLOCK DIAGRAM_2
HA_LRCK 34 33 PH_VD
HA_SCLK 32 31 VH_Y/G[0]
HA_DATA_OUT 30 29 VH_Y/G[1]
E
AH_DATA_IN 28 X 27 VH_Y/G[2]
HA_AUD_CLKOUT 26 T 25 VH_Y/G[3]
HA_IEC958OUT 24 . 23 VH_Y/G[4]
PV_RGB_MUTE_CTRL 22 I 21 VH_Y/G[5]
PV_YPbPr_MUTE_CTRL 20 N 19 VH_Y/G[6] T
A/V
PV_VCR_MUTE_CTRL 18 17 VH_Y/G[7]
OUT
CP_AUDIO_MUTE_CTRL 16 15 VH_Y/B[0]
/CP_4448_RESET 14 13 VH_Y/B[1] U
DGND 12 11 VH_Y/B[2]
CP_SCL 10 9 VH_Y/B[3]
CP_SDA 8 7 VH_Y/B[4] N
HV_CVBS_OUT 6 5 VH_Y/B[5]
HV_SVIDEO_Y 4 3 VH_Y/B[6]
2 1
3-23
HV_SVIDEO_C 2 1 VH_Y/B[7] E
CN100 (IO B'd)
HP_DOUT_G[2] 50 49 CP_TUNER_SEL R
HP_DOUT_G[3] 48 47 CP_TUNER_I2C_ON/OFF 50 49
HP_DOUT_G[4] 46 45 PH_TP[0]
D
HP_DOUT_G[5] 44 43 PH_TP[1]
E
HP_DOUT_G[6] 42 41 PH_TP[2]
N T
HP_DOUT_G[7] 40 39 PH_TP[3]
C U
HP_DOUT_G[8] 38 37 PH_TP[4]
N
HP_DOUT_G[9] 36 35 PH_TP[5]
E
DGND 34 33 PH_TP[6]
R
A_+3.3V 32 31 PH_TP[7]
Re s .
A_+3.3V 30 29 /PH_ERROR
DGND 28 27 PH_SOP
A_+1.8V 26 25 PH_VALID
A_+1.8V 24 23 PH_CLK
DGND 22 21 FC_IR_DATA_IRQ
P_+3.3V 20 19 /CF_CS
P_+3.3V 18 17 CF_CLK
DGND 16 F 15 CF_DATA_WR
PWR
AGND 14 R 13 FC_DATA_RD
P_+3.3V_AD 12 O 11 PC_TTX_RQ
P_+3.3V_AD 10 N 9 DGND
AGND 8 T 7 DGND
DGND 6 5 CP_PWR_CTRL
P_+1.8V 4 3 DGND
P_+1.8V 2 1 DGND
CN101 (IO B'd ) 2 1
3. BLOCK DIAGRAM_3
Interface B'd
Epoxy 4L
180X47
FLA SH
SDRAM
D DVI CPU J
L
T
V HD_2.3 SDRAM A A
SDRAM G
3-24
I N
IO B'd
Silver 2L
180mm
4. OPERA BOARD BLOCK DIAGRAM
OPERA Board
INTERFACE B'd : U(Flash, SDRAM_1ea)
HD_2.3(SDRAM_2ea)
PLL, RESET, JTAG, LAN
DVI Controller CVBS, L/R
DVI Jack YPbPr, L /R
COAX
D
IO B'd : A/V Jack(CVBS+L/R, YPbPr+L/R,COAX V
RGB, RS-232C, RGB
I
Ext. IN Ready Y/C
OPT RS-232C
DENC Ready
Power
Tuner
PS
SM
Front
3-25
CIRCUIT DIAGRAMS
1. POWER CIRCUIT DIAGRAM
A B C D E F G H I J K L M N O P Q R S T
3-26 3-27
2. CPU & SYSTEM MEMORY & BOOT STRAPPING CIRCUIT DIAGRAM
A B C D E F G H I J K L M N O P Q R S T
3-28 3-29
3. HD-2 & HD-2 MEMPRY & PLL CIRCUIT DIAGRAM
A B C D E F G H I J K L M N O P Q R S T
3-30 3-31
4. DVI CIRCUIT DIAGRAM
A B C D E F G H I J K L M N O P Q R S T
3-32 3-33
5. EXTERNAL I/O BOARD & ETHER BOARD & JTAG CIRCUIT DIAGRAM
A B C D E F G H I J K L M N O P Q R S T
3-34 3-35
6. MOOBONG & FRONT CIRCUIT DIAGRAM
A B C D E F G H I J K L M N O P Q R S T
3-36 3-37
7. I2C HUB & MAX232 & LEVEL SHIFT & POWER CIRCUIT DIAGRAM
A B C D E F G H I J K L M N O P Q R S T
3-38 3-39
8. VIDEO CIRCUIT DIAGRAM
A B C D E F G H I J K L M N O P Q R S T
3-40 3-41
9. AUDIO & OPTICAL OUT CIRCUIT DIAGRAM
A B C D E F G H I J K L M N O P Q R S T
3-42 3-43
10. TUNER CIRCUIT DIAGRAM
A B C D E F G H I J K L M N O P Q R S T
3-44 3-45
11. POWER CIRCUIT DIAGRAM
A B C D E F G H I J K L M N O P Q R S T
3-46 3-47
PRINTED CIRCUIT DIAGRAMS
1. MAIN PRINTED CIRCUIT DIAGRAMS
(TOP VIEW)
(BOTTOM VIEW)
3-48 3-49
2. MAIN I/O CIRCUIT DIAGRAM(TOP VIEW)
3-50 3-51
3. MAIN I/O CIRCUIT DIAGRAM(BOTTOM VIEW)
3-52 3-53
4. POWER PRINTED CIRCUIT DIAGRAM
LOCATION GUIDE
3-54 3-55
5. TIMER PRINTED CIRCUIT DIAGRAM
LOCATION GUIDE
3-56 3-57