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Colour Television
Chassis
LC4.1E
AB
E_14520_000.eps 170904
Contents
Page
Contents
Page
1. Technical Specifications, Connections, and Chassis Overview 2 2. Safety Instructions, Warnings, and Notes 5 3. Directions for Use 7 4. Mechanical Instructions 8 5. Service Modes, Error Codes, and Fault Finding 10 6. Block Diagrams, Testpoint Overviews, and Waveforms Wiring Diagram 17 Block Diagram Audio & Video 18 Block Diagram Scaler & Supply 19 Testpoint Overview SSB (Top Side) 20 Testpoint Overview SSB (Bottom Side) 21 Testpoint Overview Front IR / LED Panel 22 I2C Overview 23 Supply Voltage Overview 24 7. Circuit Diagrams and PWB Layouts Drawing SSB: Tuner + VIF (B1) 25 SSB: Hercules (B2) 26 SSB: Hercules (B3) 27 SSB: Audio Amplifier + Processing (B4) 28 SSB: TV Supply (B5) 29 SSB: Scaler (B6) 30 SSB: Scaler (B7) 31 SSB: Scaler I/O (B8) 32 SSB: Supply (B9) 33 SSB: Rear I/O Scart (B10) 34 Side I/O Panel (D) 37 Keyboard Control Panel (E) 39 Top Control Panel (E) 40 Audio Amplifier (I) 41 Front IR / LED Panel (J) 43
8. Alignments 45 9. Circuit Descriptions, Abbreviation List, and IC Data Sheets 52 Abbreviation List 56 IC Data Sheets 58 10. Spare Parts List 61 11. Revision List 64
PWB 35-36 35-36 35-36 35-36 35-36 35-36 35-36 35-36 35-36 35-36 38 39 40 42 43
© Copyright 2005 Philips Consumer Electronics B.V. Eindhoven, The Netherlands. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips.
Published by BB 0566 TV Service
Printed in the Netherlands
Subject to modification
EN 3122 785 15310
EN 2
1.
LC4.1E AB
Technical Specifications, Connections, and Chassis Overview
1. Technical Specifications, Connections, and Chassis Overview
Index of this chapter: 1.1 Technical Specifications 1.2 Connection Overview 1.3 Chassis Overview Notes: · Figures can deviate due to the different set executions. · Specifications are indicative (subject to change). - Mains frequency (Hz) Ambient conditions: - Temperature range (°C) - Maximum humidity : 50 / 60
: +5 to +45 : 90% R.H.
Power consumption (values are indicative) - Normal operation (W) : 42/53/55/80/92 - Stand-by (W) : < 1/1.5/3 Dimensions (WxHxD cm) : : : : : : 46.7x30.7x6.9 47.2x30.8x7.65 51.7x30.2x8 58.3x38.6x8.7 61.8x32.5x9 71.6x37.5x9.8
1.1
1.1.1
Technical Specifications
Vision Display type Screen size : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : LCD, IPS / LCD, TN 15" (38 cm), 4:3 17" (43 cm), 16:9 20" (51 cm), 4:3 20" (51 cm), 16:9 23" (58 cm), 16:9 640x480 1024x768 1280x768 1366x768 350/500/600:1 450 16/25 130x100 140x120 176x176 PLL PAL B/G, D/K, I SECAM B/G, D/K, L/L' NTSC M/N 3.58 NTSC M/N 3.58, 4.43 PAL B/G SECAM L/L' VGA (640x480) VGA (720x400) VGA (640x350) MAC (640x480) MAC (832x624) SVGA (800x600) XVGA (1024x768) WXGA (1280x768) 640x480i - 1fH 720x576i - 1fH 1920x1080i - 2fH 1280x720p - 3fH 100 presets VHF UHF S-band Hyper-band FM-radio (depending on model)
Weight (kg)
: 5.8/6/8.8/10.2
Resolution (HxV pixels)
1.2
Connection Overview
Note: The following connector colour abbreviations are used (acc. to DIN/IEC 757): Bk= Black, Bu= Blue, Gn= Green, Gy= Grey, Rd= Red, Wh= White, and Ye= Yellow.
Contrast ratio Light output (cd/m2) Response time (ms) Viewing angle (HxV degrees)
1.2.1
Front / Side Connections
Tuning system TV Colour systems
HEADPHONE AUDIO R IN AUDIO L IN VIDEO IN S-VIDEO DVI AUDIO IN F_15310_032.eps 270605
Video playback
Supported computer formats
Figure 1-1 Side I/O 1.2.2 Rear Connections
Supported video formats
Presets/channels Tuner bands
AERIAL IN
ComPair CONNECTOR FM ANT SCART 1
DVI
F_15310_031.eps 270605
1.1.2
Sound Sound systems : : : : : : FM-mono AM-mono FM-stereo B/G NICAM B/G, D/K, I, L AV Stereo 2x2/2x5
Figure 1-2 Rear I/O Aerial - In - - IEC-type (EU) Aerial: FM Radio - - IEC-type
Coax, 75 ohm
D
Coax, 75 ohm
D
Maximum power (WRMS) 1.1.3 Miscellaneous Power supply: - Mains voltage (VAC)
Cinch: Video CVBS - In, Audio - In Ye - Video CVBS 1 VPP / 75 ohm Wh - Audio L 0.5 VRMS / 10 kohm Rd - Audio R 0.5 VRMS / 10 kohm : 90 - 240
jq jq jq
Technical Specifications, Connections, and Chassis Overview
S-Video (Hosiden): Video Y/C - In 1 - Ground Y Gnd 2 - Ground C Gnd 3 - Video Y 1 VPP / 75 ohm 4 - Video C 0.3 VPPP / 75 ohm Mini Jack: Audio Head phone - Out Bk - Head phone 32 - 600 ohm / 10 mW Service Connector (ComPair) 1 - SDA-S I2C Data (0 - 5 V) 2 - SCL-S I2C Clock (0 - 5 V) 3 - Ground Gnd Service Connector (UART) 1 - UART_TX Transmit 2 - Ground Gnd 3 - UART_RX Receive Mini jack: DVI Audio - In 1 - Audio - R 2 - Audio - L 3 - Ground Gnd H H j j 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 - D4+ - DDC_SCL - DDC_SDA - n.c. - D1- D1+ - Shield - D3- D3+ - +5V - Ground - HPD - D0- D0+ - Shield - D5- D5+ - Shield - CLK+ - CLK-
LC4.1E AB
1.
EN 3
j k jk j j H j j j H j j j H j j H j j
DDC clock DDC data
Gnd
ot
jk j H
Gnd Hot Plug Detect
Gnd
k H j
Gnd
jq jq H
DVI-I: Digital/Analogue Video - In (depending on model)
1 9 17 8 16 24 C1 C2 C5 C3 C4 E_06532_004.eps 050404
EXT1: Video RGB/YC - In, CVBS - In/Out, Audio - In/Out
20
2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 C1 C2 C3 C4 C5
Figure 1-5 DVI-I connector - D2- D2+ - Shield - D4- D4+ - DDC_SCL - DDC_SDA - V-sync - D1- D1+ - Shield - D3- D3+ - +5V - Ground - HPD - D0- D0+ - Shield - D5- D5+ - Shield - CLK+ - CLK- Video Red - Video Green - Video Blue - H-sync - Ground j j H j j k jk j j j H j j j H j j j H j j H j j j j j j H
21
E_06532_001.eps 050404
1
Gnd
Figure 1-3 SCART connector 1 2 3 4 5 6 7 8 - Audio R - Audio R - Audio L - Ground Audio - Ground Blue - Audio L - Video Blue/C-out - Function Select 0.5 VRMS / 1 kohm 0.5 VRMS / 10 kohm 0.5 VRMS / 1 kohm Gnd Gnd 0.5 VRMS / 10 kohm 0.7 VPP / 75 ohm 0 - 2 V: INT 4.5 - 7 V: EXT 16:9 9.5 - 12 V: EXT 4:3 Gnd 0.7 VPP / 75 ohm Gnd Gnd 0.7 VPP / 75 ohm 0 - 0.4 V: INT 1 - 3 V: EXT / 75 ohm Gnd Gnd 1 VPP / 75 ohm 1 VPP / 75 ohm Gnd k j k H H j jk j H j H H j j H H k j H
DDC clock DDC data 0-5V
Gnd
Gnd Hot Plug Detect
9 10 11 12 13 14 15 16 17 18 19 20 21
- Ground Green - n.c. - Video Green - n.c. - Ground Red - Ground P50 - Video Red/C - Status/FBL - Ground Video - Ground FBL - Video CVBS - Video CVBS/Y - Shield
Gnd
Gnd
0.7 VPP / 75 ohm 0.7 VPP / 75 ohm 0.7 VPP / 75 ohm 0-5V Gnd
DVI-D: Digital Video - In (depending on model)
1 9 17 8 16 24 C5 E_06532_003.eps 050404
Figure 1-4 DVI-D connector 1 2 3 4 - D2- D2+ - Shield - D4j j H j
Gnd
EN 4 1.3
1.
LC4.1E AB
Technical Specifications, Connections, and Chassis Overview
Chassis Overview
TOP CONTROL PANEL
E
LCD PANEL
TV & SCALER BOARD AMPLIFIER PANEL
B I D
J
FRONT IR / LED PANEL SIDE IO PANEL POWER SUPPLY UNIT
F_15310_033.eps 270605
Figure 1-6 PWB locations (depending on model)
Safety Instructions, Warnings, and Notes
LC4.1E AB
2.
EN 5
2. Safety Instructions, Warnings, and Notes
Index of this chapter: 2.1 Safety Instructions 2.2 Warnings 2.3 Notes · Service Default Mode (see chapter 5) with a colour bar signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated otherwise) and picture carrier at 475.25 MHz for PAL, or 61.25 MHz for NTSC (channel 3). Where necessary, measure the waveforms and voltages with (D) and without (E) aerial signal. Measure the voltages in the power supply section both in normal operation (G) and in stand-by (F). These values are indicated by means of the appropriate symbols. The semiconductors indicated in the circuit diagram and in the parts lists, are interchangeable per position with the semiconductors in the unit, irrespective of the type indication on these semiconductors.
2.1
Safety Instructions
Safety regulations require the following during a repair: · Connect the set to the Mains/AC Power via an isolation transformer (> 800 VA). · Replace safety components, indicated by the symbol h, only by components identical to the original ones. Any other component substitution (other than original type) may increase risk of fire or electrical shock hazard. Safety regulations require that after a repair, the set must be returned in its original condition. Pay in particular attention to the following points: · Route the wire trees correctly and fix them with the mounted cable clamps. · Check the insulation of the Mains/AC Power lead for external damage. · Check the strain relief of the Mains/AC Power cord for proper function. · Check the electrical DC resistance between the Mains/AC Power plug and the secondary side (only for sets that have a Mains/AC Power isolated power supply): 1. Unplug the Mains/AC Power cord and connect a wire between the two pins of the Mains/AC Power plug. 2. Set the Mains/AC Power switch to the "on" position (keep the Mains/AC Power cord unplugged!). 3. Measure the resistance value between the pins of the Mains/AC Power plug and the metal shielding of the tuner or the aerial connection on the set. The reading should be between 4.5 Mohm and 12 Mohm. 4. Switch "off" the set, and remove the wire between the two pins of the Mains/AC Power plug. · Check the cabinet for defects, to prevent touching of any inner parts by the customer.
·
2.3.2
Schematic Notes · All resistor values are in ohms, and the value multiplier is often used to indicate the decimal point location (e.g. 2K2 indicates 2.2 kohm). Resistor values with no multiplier may be indicated with either an "E" or an "R" (e.g. 220E or 220R indicates 220 ohm). All capacitor values are given in micro-farads (µ= x10-6), nano-farads (n= x10-9), or pico-farads (p= x10-12). Capacitor values may also use the value multiplier as the decimal point indication (e.g. 2p2 indicates 2.2 pF). An "asterisk" (*) indicates component usage varies. Refer to the diversity tables for the correct values. The correct component values are listed in the Spare Parts List. Therefore, always check this list when there is any doubt.
·
· · · ·
2.3.3
Rework on BGA (Ball Grid Array) ICs General Although (LF)BGA assembly yields are very high, there may still be a requirement for component rework. By rework, we mean the process of removing the component from the PWB and replacing it with a new component. If an (LF)BGA is removed from a PWB, the solder balls of the component are deformed drastically so the removed (LF)BGA has to be discarded. Device Removal As is the case with any component that, is being removed, it is essential when removing an (LF)BGA, that the board, tracks, solder lands, or surrounding components are not damaged. To remove an (LF)BGA, the board must be uniformly heated to a temperature close to the reflow soldering temperature. A uniform temperature reduces the risk of warping the PWB. To do this, we recommend that the board is heated until it is certain that all the joints are molten. Then carefully pull the component off the board with a vacuum nozzle. For the appropriate temperature profiles, see the IC data sheet. Area Preparation When the component has been removed, the vacant IC area must be cleaned before replacing the (LF)BGA. Removing an IC often leaves varying amounts of solder on the mounting lands. This excessive solder can be removed with either a solder sucker or solder wick. The remaining flux can be removed with a brush and cleaning agent. After the board is properly cleaned and inspected, apply flux on the solder lands and on the connection balls of the (LF)BGA. Note: Do not apply solder paste, as this has been shown to result in problems during re-soldering. Device Replacement The last step in the repair process is to solder the new component on the board. Ideally, the (LF)BGA should be
2.2
Warnings
· All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD w). Careless handling during repair can reduce life drastically. Make sure that, during repair, you are connected with the same potential as the mass of the set by a wristband with resistance. Keep components and tools also at this same potential. Available ESD protection equipment: Complete kit ESD3 (small tablemat, wristband, connection box, extension cable and earth cable) 4822 310 10671. Wristband tester 4822 344 13999. Be careful during measurements in the high voltage section. Never replace modules or other components while the unit is switched "on". When you align the set, use plastic rather than metal tools. This will prevent any short circuits and the danger of a circuit becoming unstable.
· · ·
2.3
2.3.1
Notes
General · Measure the voltages and waveforms with regard to the chassis (= tuner) ground (H), or hot ground (I), depending on the tested area of circuitry. The voltages and waveforms shown in the diagrams are indicative. Measure them in the
EN 6
2.
LC4.1E AB
Safety Instructions, Warnings, and Notes
· Use only original spare-parts listed in the Service-Manuals. Not listed standard material (commodities) has to be purchased at external companies. Special information for lead-free BGA ICs: these ICs will be delivered in so-called "dry-packaging" to protect the IC against moisture. This packaging may only be opened shortly before it is used (soldered). Otherwise the body of the IC gets "wet" inside and during the heating time the structure of the IC will be destroyed due to high (steam-) pressure inside the body. If the packaging was opened before usage, the IC has to be heated up for some hours (around 90°C) for drying (think of ESD-protection!). Do not re-use BGAs at all! For sets produced before 1.1.2005, containing leaded soldering tin and components, all needed spare parts will be available till the end of the service period. For the repair of such sets nothing changes.
aligned under a microscope or magnifying glass. If this is not possible, try to align the (LF)BGA with any board markers. So as not to damage neighbouring components, it may be necessary to reduce some temperatures and times. More Information For more information on how to handle BGA devices, visit this URL: www.atyourservice.ce.philips.com (needs subscription, not available for all regions). After login, select "Magazine", then go to "Workshop Information". Here you will find Information on how to deal with BGA-ICs. 2.3.4 Lead-free Solder Philips CE is producing lead-free sets (PBF) from 1.1.2005 onwards. Identification: The bottom line of a type plate gives a 14-digit serial number. Digits 5 and 6 refer to the production year, digits 7 and 8 refer to production week (in example below it is 1991 week 18).
·
·
In case of doubt whether the board is lead-free or not (or with mixed technologies), you can use the following method: · Always use the highest temperature to solder, when using SAC305 (see also instructions below). · De-solder thoroughly (clean solder joints to avoid mix of two alloys). Caution: For BGA-ICs, you must use the correct temperatureprofile, which is coupled to the 12NC. For an overview of these profiles, visit the website www.atyourservice.ce.philips.com (needs subscription, but is not available for all regions) You will find this and more technical information within the "Magazine", chapter "Workshop information". For additional questions please contact your local repair help desk. 2.3.5 Practical Service Precautions · It makes sense to avoid exposure to electrical shock. While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard. Always respect voltages. While some may not be dangerous in themselves, they can cause unexpected reactions that are best avoided. Before reaching into a powered TV set, it is best to test the high voltage insulation. It is easy to do, and is a good service precaution.
E_06532_024.eps 230205
Figure 2-1 Serial number example Regardless of the special lead-free logo (which is not always indicated), one must treat all sets from this date onwards according to the rules as described below.
P
·
b
Figure 2-2 Lead-free logo Due to lead-free technology some rules have to be respected by the workshop during a repair: · Use only lead-free soldering tin Philips SAC305 with order code 0622 149 00106. If lead-free solder paste is required, please contact the manufacturer of your soldering equipment. In general, use of solder paste within workshops should be avoided because paste is not easy to store and to handle. · Use only adequate solder tools applicable for lead-free soldering tin. The solder tool must be able: To reach a solder-tip temperature of at least 400°C. To stabilise the adjusted temperature at the solder-tip. To exchange solder-tips for different applications. · Adjust your solder tool so that a temperature of around 360°C - 380°C is reached and stabilised at the solder joint. Heating time of the solder-joint should not exceed ~ 4 sec. Avoid temperatures above 400°C, otherwise wear-out of tips will increase drastically and flux-fluid will be destroyed. To avoid wear-out of tips, switch "off" unused equipment or reduce heat. · Mix of lead-free soldering tin/parts with leaded soldering tin/parts is possible but PHILIPS recommends strongly to avoid mixed regimes. If this cannot be avoided, carefully clear the solder-joint from old tin and re-solder with new tin.
Directions for Use
LC4.1E AB
3.
EN 7
3. Directions for Use
You can download this information from the following websites: http://www.philips.com/support http://www.p4c.philips.com
EN 8
4.
LC4.1E AB
Mechanical Instructions
4. Mechanical Instructions
Index of this chapter: 4.1 Service Position 4.2 Rear Cover Removal 4.3 Power Supply Unit Removal 4.4 Small Signal Board Removal 4.5 Side I/O Panel Removal 4.7 LED/IR Panel Removal 4.8 Audio Amplifier Panel Removal 4.9 Exchanging the LCD Panel 4.10 Re-Assembly Note: Figures below can deviate from the actual situation, due to different set executions. Note: To diagnose the set with ComPair it is not needed to open the set entirely. To access the ComPair connector, proceed with the following: 1. Manually unlock and remove the cover cap. 2. Remove the tape shielding that covers the ComPair connector (1). Note: Make sure that both the ComPair connector and the UART connector are shielded off with a piece of insulating tape after repair for ESD reasons. Place this tape over the holes in the rear cover of the set.
E_14520_035.eps 160904
4.2
Rear Cover Removal
1
Figure 4-3 Rear cover removal 1. Make sure all power-, audio-, video- and coax- cables are unplugged. 2. Remove all Torx screws (1) around the edges of the rear cover. 3. Remove the rear cover and store it in a safe place.
1
E_14520_034.eps 160904
4.3
Power Supply Unit Removal
Figure 4-1 ComPair connector
4.1
4.1.1
Service Position
Foam Bars
1
E_14520_036.eps 160904
Figure 4-4 Power supply unit (depending on model) 1. Disconnect all cables from the Power supply unit. 2. Remove all mounting screws (1) from the Power supply unit. 3. Take out the Power supply unit.
E_06532_018.eps 170504
Figure 4-2 Foam bars The foam bars (order code 3122 785 90580) can be used for all types and sizes of Flat TVs. By laying the plasma or LCD TV flat on the (ESD protective) foam bars, a stable situation is created to perform measurements and alignments. By placing a mirror under the TV, you can easily monitor the screen.
Mechanical Instructions 4.4 Small Signal Board Removal 4.8
LC4.1E AB
4.
EN 9
Audio Amplifier Panel Removal
1 2
1
2
E_14520_037.eps 160904
Figure 4-5 Small signal board removal 1. 2. 3. 4. Disconnect all cables from the Smal signal board. Remove the screw from the grounding cable (1). Remove the two fixation screws from the DVI connector. Remove the mounting screw (2) and remove the board.
E_14520_039.eps 160904
Figure 4-7 Audio amplifier panel removal (depending on model) 1. Disconnect all cables from the audio amplifier panel. 2. Remove all mounting screws from the audio amplifier panel (1). 3. Unlock the panel by twisting back the clamp at the bottom (2). 4. Take out the audio amplifier panel.
4.5
Side I/O Panel Removal
4.9
1 2
Exchanging the LCD Panel
1
E_14520_038.eps 160904
Figure 4-6 Side I/O panel removal 1. Disconnect all cables from the Side I/O panel. 2. Remove the mounting screw (1). 3. Unlock the panel by twisting back the clamp at the bottom (2). 4. Take out the Side I/O panel from the bracket.
E_14520_040.eps 160904
4.6
Top Control Panel Removal
1. Disconnect the cable from the top control panel. 2. Remove the two mounting screws from the top control panel. 3. Take out the top control panel. 1. 2. 3. 4.
Figure 4-8 Exchanging the LCD panel Disconnect all cables from the LCD Panel. Remove all mounting screws (1) from the metal cover. Lift and take off the metal cover. Now you can exchange the LCD panel.
4.10 Re-Assembly 4.7 LED/IR Panel Removal
1. Unlock the panel by pushing against one of the fixation clamps and remove the panel. 2. Disconnect the cable from the LED/IR panel. To re-assemble the whole set, do all processes in reverse order. Notes: Do not forget to replace the ground cable of the smal signal board, while mounting the screw at the board topside. See figure "Smal signal board removal".
EN 10
5.
LC4.1E AB
Service Modes, Error Codes, and Fault Finding
5. Service Modes, Error Codes, and Fault Finding
Index of this chapter: 5.1 Test Points 5.2 Service Modes 5.3 Problems and Solving Tips Related to CSM 5.4 Service Tools 5.5 Error Codes 5.6 The Blinking LED Procedure 5.7 Fault Finding and Repair Tips How to enter To enter SDM, use one of the following methods: · Press the following key sequence on the remote control transmitter: "062596" directly followed by the MENU button (do not allow the display to time out between entries while keying the sequence). · Short "Service" jumpers on the small signal board during cold start and apply mains (see Figure "Service jumpers"). Then press the mains button (remove the short after startup). Caution: Entering SDM by shorting "Service" jumpers will override the +5V-protection. Do this only for a short period. When doing this, the service-technician must know exactly what he is doing, as it could damage the television set. · Or via ComPair.
5.1
Test Points
This chassis is equipped with test points in the service printing. In the schematics test points are identified with a rectangle box around Fxxx or Ixxx. These test points are specifically mentioned in the service manual as "half moons" with a dot in the centre. Perform measurements under the following conditions: · Television set in Service Default Mode. · Video input: Colour bar signal. · Audio input: 3 kHz left channel, 1 kHz right channel.
1
5.2
Service Modes
Service Default mode (SDM) and Service Alignment Mode (SAM) offers several features for the service technician, while the Customer Service Mode (CSM) is used for communication between the call centre and the customer. This chassis also offers the option of using ComPair, a hardware interface between a computer and the TV chassis. It offers the abilities of structured troubleshooting, error code reading, and software version readout for all chassis. Minimum requirements for ComPair: a Pentium processor, a Windows OS, and a CD-ROM drive (see also paragraph "ComPair").
E_14520_041.eps 160904
Figure 5-1 Service jumpers After entering SDM, the following screen is visible, with SDM in the upper right corner of the screen to indicate that the television is in Service Default Mode.
5.2.1
Service Default Mode (SDM) Purpose · To create a predefined setting for measurements to be made. · To override software protections. · To start the blinking LED procedure. · To inspect the error buffer. · To check the life timer. Specifications · Tuning frequency: 475.25 MHz. · Colour system: PAL-BG. · All picture settings at 50% (brightness, colour contrast, hue). · Bass, treble and balance at 50 %; volume at 25 %. · All service-unfriendly modes (if present) are disabled. The service unfriendly modes are: Timer / Sleep timer. Child / parental lock. Blue mute. Hotel / hospital mode. Auto shut off (when no "IDENT" video signal is received for 15 minutes). Skipping of non-favourite presets / channels. Auto-storage of personal presets. Auto user menu time-out. Auto Volume Levelling (AVL).
00022
LC4CEP1 1.05/S4CEX1 1.06
SDM
ERR 0 0 0 0 0 OP 000 057 140 032 120 128 000
F_15310_001.eps 200605
Figure 5-2 SDM menu How to Navigate Use one of the following methods: · When you press the MENU button on the remote control, the set will switch on the normal user menu in the SDM mode. · On the TV, press and hold the VOLUME DOWN and press the CHANNEL DOWN for a few seconds, to switch from SDM to SAM and reverse.
Service Modes, Error Codes, and Fault Finding
How to Exit Switch the set to STANDBY by pressing the mains button on the remote control transmitter or the television set. If you turn the television set off by removing the mains (i.e., unplugging the television) without using the mains button, the television set will remain in SDM when mains is re-applied, and the error buffer is not cleared. 5.2.2 Service Alignment Mode (SAM) Purpose · To change option settings. · To display / clear the error code buffer. · To perform alignments. Specifications · Operation hours counter (maximum five digits displayed). · Software version, Error codes, and Option settings display. · Error buffer clearing. · Option settings. · AKB switching. · Software alignments (Tuner, White Tone, Geometry & Audio). · NVM Editor. · ComPair Mode switching. How to Enter To enter SAM, use one of the following methods: · Press the following key sequence on the remote control transmitter: "062596" directly followed by the OSD/ STATUS button (do not allow the display to time out between entries while keying the sequence). · Or via ComPair. After entering SAM, the following screen is visible, with SAM in the upper right corner of the screen to indicate that the television is in Service Alignment Mode. 3. 4. 5. ·
LC4.1E AB
5.
EN 11
6.
7. 8. 9. 10. 11. 12. 13.
00022 LC4CEP1 1.05/S4CEX1 1.06 ERR 0 0 0 0 0 OP 000 057 140 032 120 128 000 . Clear . Options . Tuner . White Tone . Audio . NVM Editor . SC NVM Editor . ComPair Mode Clear ?
SAM
Europe: T= 1 page TXT, F= Full TXT, V= Voice control. · LATAM and NAFTA: N= Stereo non-dBx, S= Stereo dBx. · Asian Pacific: T= TXT, N= non-TXT, C= NTSC. · ALL regions: M= mono, D= DVD, Q= Mk2. D= the language cluster number. X= the main software version number (updated with a major change that is incompatible with previous versions). Y= the sub software version number (updated with a minor change that is compatible with previous versions). EEEEEE= the scaler sw cluster F= the main sw version no. GG= the sub-version no. SAM. Indication of the Service Alignment Mode. Error Buffer. Shows all errors detected since the last time the buffer was erased. Five errors possible. Option Bytes. Used to set the option bytes. See "Options" in the Alignments section for a detailed description. Seven codes are possible. Clear. Erases the contents of the error buffer. Select the CLEAR menu item and press the MENU RIGHT key. The content of the error buffer is cleared. Options. Used to set the option bits. See "Options" in the Alignments section for a detailed description. Tuner. Used to align the tuner. See "Tuner" in the Alignments section for a detailed description. White Tone. Used to align the white tone. See "White Tone" in the Alignments section for a detailed description. Audio. No audio alignment is necessary for this television set. NVM Editor. Can be used to change the NVM data in the television set. See table "NVM data" further on. SC NVM Editor. Can be used to edit Scaler NVM. ComPaIr. Can be used to switch on the television to In System Programming (ISP) mode, for software uploading via ComPair. Caution: When this mode is selected without ComPair connected, the TV will be blocked. Remove the AC power to reset the TV.
On
F_15310_002.eps 200605
How to Navigate · In SAM, select menu items with the MENU UP/DOWN keys on the remote control transmitter. The selected item will be highlighted. When not all menu items fit on the screen, use the MENU UP/DOWN keys to display the next / previous menu items. · With the MENU LEFT/RIGHT keys, it is possible to: Activate the selected menu item. Change the value of the selected menu item. Activate the selected submenu. · In SAM, when you press the MENU button twice, the set will switch to the normal user menus (with the SAM mode still active in the background). To return to the SAM menu press the MENU or STATUS/EXIT button. · When you press the MENU key in while in a submenu, you will return to the previous menu. How to Store SAM settings To store the settings changed in SAM mode, leave the top level SAM menu by using the POWER button on the remote control transmitter or the television set. How to Exit Switch the set to STANDBY by pressing the mains button on the remote control transmitter or the television set. If you turn the television set "off" by removing the mains (i.e., unplugging the television) without using the mains button, the television set will remain in SAM when mains is re-applied, and the error buffer is not cleared.
Figure 5-3 SAM menu Menu Explanation 1. LLLLL. This represents the run timer. The run timer counts normal operation hours, but does not count standby hours. 2. AAABCD-X.Y. This is the software identification of the main microprocessor: A= the project name (LC41). B= the region: E= Europe, A= Asia Pacific, U= NAFTA, L= LATAM. C= the software diversity:
EN 12
5.2.3
5.
LC4.1E AB
Service Modes, Error Codes, and Fault Finding 5.3
5.3.1
Customer Service Mode (CSM) Purpose The Customer Service Mode shows error codes and information on the TV's operation settings. The call centre can instruct the customer (by telephone) to enter CSM in order to identify the status of the set. This helps the call centre to diagnose problems and failures in the TV set before making a service call. The CSM is a read-only mode; therefore, modifications are not possible in this mode. How to Enter To enter CSM, press the following key sequence on the remote control transmitter: "123654" (do not allow the display to time out between entries while keying the sequence). Upon entering the Customer Service Mode, the following screen will appear:
Problems and Solving Tips Related to CSM
Picture Problems Note: The problems described below are all related to the TV settings. The procedures used to change the value (or status) of the different settings are described. Picture too Dark or too Bright If: · The picture improves when you press the AUTO PICTURE button on the remote control transmitter, or · The picture improves when you enter the Customer Service Mode, Then: 1. Press the AUTO PICTURE button on the remote control transmitter repeatedly (if necessary) to choose PERSONAL picture mode. 2. Press the MENU button on the remote control transmitter. This brings up the normal user menu. 3. In the normal user menu, use the MENU UP/DOWN keys to highlight the PICTURE sub menu. 4. Press the MENU LEFT/RIGHT keys to enter the PICTURE sub menu. 5. Use the MENU UP/DOWN keys (if necessary) to select BRIGHTNESS. 6. Press the MENU LEFT/RIGHT keys to increase or decrease the BRIGHTNESS value. 7. Use the MENU UP/DOWN keys to select PICTURE. 8. Press the MENU LEFT/RIGHT keys to increase or decrease the PICTURE value. 9. Press the MENU button on the remote control transmitter twice to exit the user menu. 10. The new PERSONAL preference values are automatically stored. White Line around Picture Elements and Text If: The picture improves after you have pressed the AUTO PICTURE button on the remote control transmitter, Then: 1. Press the AUTO PICTURE button on the remote control transmitter repeatedly (if necessary) to choose PERSONAL picture mode. 2. Press the MENU button on the remote control transmitter. This brings up the normal user menu. 3. In the normal user menu, use the MENU UP/DOWN keys to highlight the PICTURE sub menu. 4. Press the MENU LEFT/RIGHT keys to enter the PICTURE sub menu. 5. Use the MENU UP/DOWN keys to select SHARPNESS. 6. Press the MENU LEFT key to decrease the SHARPNESS value. 7. Press the MENU button on the remote control transmitter twice to exit the user menu. 8. The new PERSONAL preference value is automatically stored. Snowy Picture Check CSM line 6. If this line reads "Not Tuned", check the following: · Antenna not connected. Connect the antenna. · No antenna signal or bad antenna signal. Connect a proper antenna signal. · The tuner is faulty (in this case line 2, the Error Buffer line, will contain error number 10). Check the tuner and replace/ repair the tuner if necessary.
1 00022
LC4CEP1 1.05/S4CEX1 1.06 CSM
2 CODES 0 0 0 0 0 3 OP 000 057 140 032 120 128 000 4 20PF8846/12 5 6 NOT TUNED 7 PAL 8 STEREO 9 CO 50 CL 50 BR 50 0 AVL Off
F_15310_003.eps 200605
Figure 5-4 CSM menu Menu Explanation 1. Indication of the decimal value of the operation hours counter, Software identification of the main microprocessor (see "Service Default or Alignment Mode" for an explanation), and the service mode (CSM= Customer Service Mode). 2. Displays the last five errors detected in the error code buffer. 3. Displays the option bytes. 4. Displays the type number version of the set. 5. Reserved item for P3C call centres (AKBS stands for Advanced Knowledge Base System). 6. Indicates the television is receiving an "IDENT" signal on the selected source. If no "IDENT" signal is detected, the display will read "NOT TUNED" 7. Displays the detected Colour system (e.g. PAL/NTSC). 8. Displays the detected Audio (e.g. stereo/mono). 9. Displays the picture setting information. 10. Displays the sound setting information. How to Exit To exit CSM, use one of the following methods: · Press the MENU, STATUS/EXIT, or POWER button on the remote control transmitter. · Press the POWER button on the television set.
Service Modes, Error Codes, and Fault Finding
Black and White Picture If: · The picture improves after you have pressed the AUTO PICTURE button on the remote control transmitter, Then: 1. Press the AUTO PICTURE button on the remote control transmitter repeatedly (if necessary) to choose PERSONAL picture mode. 2. Press the MENU button on the remote control transmitter. This brings up the normal user menu. 3. In the normal user menu, use the MENU UP/DOWN keys to highlight the PICTURE sub menu. 4. Press the MENU LEFT/RIGHT keys to enter the PICTURE sub menu. 5. Use the MENU UP/DOWN keys to select COLOUR. 6. Press the MENU RIGHT key to increase the COLOUR value. 7. Press the MENU button on the remote control transmitter twice to exit the user menu. 8. The new PERSONAL preference value is automatically stored. Menu Text not Sharp Enough If: · The picture improves after you have pressed the AUTO PICTURE button on the remote control transmitter, Then: 1. Press the AUTO PICTURE button on the remote control transmitter repeatedly (if necessary) to choose PERSONAL picture mode. 2. Press the MENU button on the remote control transmitter. This brings up the normal user menu. 3. In the normal user menu, use the MENU UP/DOWN keys to highlight the PICTURE sub menu. 4. Press the MENU LEFT/RIGHT keys to enter the PICTURE sub menu. 5. Use the MENU UP/DOWN keys to select PICTURE. 6. Press the MENU LEFT key to decrease the PICTURE value. 7. Press the MENU button on the remote control transmitter twice to exit the user menu. 8. The new PERSONAL preference value is automatically stored.
LC4.1E AB
5.
EN 13
Specifications ComPair consists of a Windows based fault finding program and an interface box between PC and the (defective) product. The ComPair interface box is connected to the PC via a serial (or RS-232) cable. For this chassis, the ComPair interface box and the TV communicate via a bi-directional service cable via the service connector(s). The ComPair fault finding program is able to determine the problem of the defective television. ComPair can gather diagnostic information in two ways: · Automatically (by communicating with the television): ComPair can automatically read out the contents of the entire error buffer. Diagnosis is done on I2C/UART level. ComPair can access the I2C/UART bus of the television. ComPair can send and receive I2C/UART commands to the microcontroller of the television. In this way, it is possible for ComPair to communicate (read and write) to devices on the I2C/UART buses of the TV-set. · Manually (by asking questions to you): Automatic diagnosis is only possible if the microcontroller of the television is working correctly and only to a certain extent. When this is not the case, ComPair will guide you through the fault finding tree by asking you questions (e.g. Does the screen give a picture? Click on the correct answer: YES / NO) and showing you examples (e.g. Measure test-point I7 and click on the correct oscillogram you see on the oscilloscope). You can answer by clicking on a link (e.g. text or a waveform picture) that will bring you to the next step in the fault finding process. By a combination of automatic diagnostics and an interactive question / answer procedure, ComPair will enable you to find most problems in a fast and effective way. How to Connect This is described in the chassis fault finding database in ComPair.
TO UART SERVICE CONNECTOR TO I2C SERVICE CONNECTOR
PC
VCR
5.4
5.4.1
Service Tools
ComPair Introduction ComPair (Computer Aided Repair) is a service tool for Philips Consumer Electronics products. ComPair is a further development on the European DST (service remote control), which allows faster and more accurate diagnostics. ComPair has three big advantages: 1. ComPair helps you to quickly get an understanding on how to repair the chassis in a short time by guiding you systematically through the repair procedures. 2. ComPair allows very detailed diagnostics (on I2C level) and is therefore capable of accurately indicating problem areas. You do not have to know anything about I2C commands yourself because ComPair takes care of this. 3. ComPair speeds up the repair time since it can automatically communicate with the chassis (when the microprocessor is working) and all repair information is directly available. When ComPair is installed together with the Force/SearchMan electronic manual of the defective chassis, schematics and PWBs are only a mouse click away.
Power 9V DC
I2C
E_06532_021.eps 180804
Figure 5-5 ComPair interface connection How to Order · ComPair order codes (EU/AP/LATAM): · Starter kit ComPair32/SearchMan32 software and ComPair interface (excl. transformer): 3122 785 90450. · ComPair interface (excl. transformer): 4822 727 21631. · Starter kit ComPair32 software (registration version): 3122 785 60040. · Starter kit SearchMan32 software: 3122 785 60050. · ComPair32 CD (update): 3122 785 60070 (year 2002), 3122 785 60110 (year 2003 onwards). · SearchMan32 CD (update): 3122 785 60080 (year 2002), 3122 785 60120 (year 2003), 3122 785 60130 (year 2004). · ComPair firmware upgrade IC: 3122 785 90510. · Transformer (non-UK): 4822 727 21632. · Transformer (UK): 4822 727 21633. · ComPair interface cable: 3122 785 90004. · ComPair interface extension cable: 3139 131 03791. · ComPair UART interface cable: 3122 785 90630.
EN 14
5.
LC4.1E AB
Service Modes, Error Codes, and Fault Finding
5.5.2 How to Clear the Error Buffer The error code buffer is cleared in the following cases: · By using the CLEAR command in the SAM menu: To enter SAM, press the following key sequence on the remote control transmitter: "062596" directly followed by the OSD/STATUS button (do not allow the display to time out between entries while keying the sequence). Make sure the menu item CLEAR is highlighted. Use the MENU UP/DOWN buttons, if necessary. Press the MENU RIGHT button to clear the error buffer. The text on the right side of the "CLEAR" line will change from "CLEAR?" to "CLEARED" · If the contents of the error buffer have not changed for 50 hours, the error buffer resets automatically. Note: If you exit SAM by disconnecting the mains from the television set, the error buffer is not reset. 5.5.3 Error Codes In case of non-intermittent faults, write down the errors present in the error buffer and clear the error buffer before you begin the repair. This ensures that old error codes are no longer present. If possible, check the entire contents of the error buffer. In some situations, an error code is only the result of another error and not the actual cause of the problem (for example, a fault in the protection detection circuitry can also lead to a protection). Table 5-1 Error code overview
Error 0 1 2 3 4 Device Not applicable Not applicable Not applicable Not applicable GM5221 Error description No Error A6 Check item Diagram
Note: If you encounter any problems, contact your local support desk. 5.4.2 LVDS Tool Introduction This service tool (also called "ComPair Assistant 1") may help you to identify, in case the TV does not show any picture, whether the Small Signal Board (SSB) or the display of a Flat TV is defective. Furthermore it is possible to program EPLDs with this tool (Byte blaster). Read the user manual for an explanation of this feature. Since 2004, the LVDS output connectors in our Flat TV models are standardised (with some exceptions). With the two delivered LVDS interface cables (31p and 20p) you can cover most chassis (in special cases, an extra cable will be offered). When operating, the tool will show a small (scaled) picture on a VGA monitor. Due to a limited memory capacity, it is not possible to increase the size when processing high-resolution LVDS signals (> 1280x960). Below this resolution, or when a DVI monitor is used, the displayed picture will be full size. Generally this tool is intended to determine if the SSB is working or not. Thus to determine if LVDS, RGB, and sync signals are okay. How to Connect Connections are explained in the user manual, which is packed with the tool. Note: To use the LVDS tool, you must have ComPair release 2004-1 (or later) on your PC (engine version >= 2.2.05). For every TV type number and screen size, one must choose the proper settings via ComPair. The ComPair file will be updated regularly with new introduced chassis information. How to Order · LVDS tool (incl. two LVDS cables: 31p and 20p): 3122 785 90671. · LVDS tool Service Manual: 3122 785 00810. · LVDS cable 30p (for LC4.3): 3122 785 90820 (available soon). · LVDS cable 41p -> 31p for HD PDPs (dual -> single LVDS): 3122 785 90830 (available soon).
I2C error while communicating 7401 with the Genesis Scaler 7403 and/or Flash-ROM is faulty/ empty +5v protection General I2C error 7930
5 6 7 8 9 10
Not applicable I2C bus Not applicable M24C32 M24C16 Tuner Not applicable Not applicable Not applicable
A6
7011, 3083, A2 3084 A7 A2
I2C error while communicating 7402 with the Scaler EEPROM I2C error while communicating 7099 with the EEPROM
5.5
Error Codes
The error code buffer contains all errors detected since the last time the buffer was erased. The buffer is written from left to right. When an error occurs that is not yet in the error code buffer, it is displayed at the left side and all other errors shift one position to the right.
I2C error while communicating 1302, 3302, A1 with the PLL tuner 3303, 3327 -
11 12 13
5.6
The Blinking LED Procedure
Using this procedure, you can make the contents of the error buffer visible via the front LED. This is especially useful when there is no picture. When the SDM is entered, the front LED will blink the contents of the error-buffer: · The Led blinks with as many pulses as the error code number, followed by a time period of 1.5 seconds, in which the Led is off. · Then this sequence starts is repeated. Any RC5 command terminates this sequence. Example of error buffer: 12 9 6 0 0 After entering SDM, the following occurs: · 1 long blink of 5 seconds to start the sequence, · 12 short blinks followed by a pause of 1.5 seconds,
5.5.1
How to Read the Error Buffer You can read the error buffer in 3 ways: · On screen via the SAM (if you have a picture). Examples: ERROR: 0 0 0 0 0 : No errors detected ERROR: 6 0 0 0 0 : Error code 6 is the last and only detected error ERROR: 9 6 0 0 0 : Error code 6 was detected first and error code 9 is the last detected (newest) error · Via the blinking LED procedure (when you have no picture). See "The Blinking LED Procedure". · Via ComPair.
Service Modes, Error Codes, and Fault Finding
· · · · 9 short blinks followed by a pause of 1.5 seconds, 6 short blinks followed by a pause of 1.5 seconds, 1 long blink of 1.5 seconds to finish the sequence, The sequence starts again at 12 short blinks.
LC4.1E AB
5.
EN 15
No TV but PC is Present 1. Check if HSYNC and VSYNC are present at PIN 3 of 7007 and 7005. 2. If they are present, check RGB output. 3. If there is no RGB output, the IC TDA120xx can be failed. Comb Filter not Working 1. Check the option bit 5 in SAM. 5.7.4 Power Supply Check Fuses This power supply contains three fuses. One is near the mains inlet (marked on the board as 1102) and two other are near the output connectors (marked 1610 and 1660). 1. Check with power supply in off state by means of ohmic measurement. 2. Fuse 1102 may open in case of severe lightning strikes and/or failures in the power supply. Despite the fact, that this fuse is mounted in a fuse holder and the marking text on the board, it is not meant to be field replaceable. 3. Fuses 1610 and 1660 may open in case a severe overload of the 12 V outputs. Replacement of the power supply is needed, but not before the cause of the overload conditions is resolved. Standby Mode 1. Apply a 12 ohm load resistor of sufficient power rating to all outputs (+3 V3, +12 VAL, +12 VL and +24 V). Connect the STBY pin to GND. 2. Over an input voltage range of 90 V_ac to 264 V_ac only the +3 V3 output shall be up and within regulation (±5%). The voltage on the POWER DOWN pin shall be < 0.3 V at an input voltage below 160 V_ac, and 3.3 V ±10% at an input voltage higher than 240 V_ac. Normal Mode: 1. Apply a 12 ohm load resistor of sufficient power rating to all outputs (+3 V3, +12 VAL, +12 VL and +24 V). Connect the STBY pin to the +3 V3 output. 2. Over an input voltage range of 90 V _ac to 264 V_ac all outputs shall be up and within regulation (±5%). The voltage on the POWER DOWN pin shall be 3.3 V ±10% over the entire input voltage range. Additionally, the voltage on the big capacitor mounted flat on the PCB shall be 400 V ±10%
5.7
Fault Finding and Repair Tips
Notes: · It is assumed that the components are mounted correctly with correct values and no bad solder joints. · Before any fault finding actions, check if the correct options are set.
5.7.1
NVM Editor In some cases, it can be handy if one directly can change the NVM contents. This can be done with the "NVM Editor" in SAM mode.
5.7.2
Tuner and IF No Picture in RF Mode 1. Check whether picture is present in AV. If not, go to Video processing troubleshooting section. 2. If present, check that the Option settings are correct. 3. Check that all supply voltages are present. 4. Check if I2C lines are working correctly (3.3V). 5. Manually store a known channel and check if there is IF output at Tuner pin 11. 6. Feed in 105 dBuV at Tuner pin 11 and check whether there is RGB output from Video Processing IC. If yes, Tuner may be defected. Change Tuner. Sound in Picture Problem for L' System (Rolling Horizontal Lines) 1. Check whether AGC L' in Sam mode is set to 0. 2. If yes, align the set to correct value. Required System is not Selected Correctly 1. Check whether the Service jumper (#4022, 08 05 size) is present. If yes, remove it. 2. Check whether SEL_IF pin is according to what is specified.
5.7.3
Video Processing No Power 1. Check +12 V and 3V3 at position 1910. 2. If no supply, check the connector 1910. 3. If it is correct, check the power supply board. Power Supply is Correct But no Green Light 1. Check the two connectors 1007 and 1008, if they are properly inserted. 2. If they are inserted correctly, check if the 3V3 is present. No Picture Display 1. Check the RGB signal. 2. If it is present, check pin 3 of IC7006 (NE555). 3. If it has output, the problem is in SCALER part. 4. Otherwise, check H-out on pin 2 of NE555. If the input signal of pin2 is present, but no output, the IC is failed. Note: · If the H-out (pin 67) doesn't have signal or the level is low, check the output of NE555 (pin 3) during start up. · If the H-out (pin 67) has a signal (or has a signal for a very short time), change IC7006 (NE555).
EN 16
5.
LC4.1E AB
Service Modes, Error Codes, and Fault Finding
Personal Notes:
E_06532_012.eps 131004
Block Diagrams, Testpoint Overviews, and Waveforms
LC4.1E AB
6.
17
6. Block Diagrams, Testpoint Overviews, and Waveforms
Wiring Diagram
E
TOP CONTROL
1308
2P
LCD SCREEN TTL (LVDS) CONNECTION
Rigth Speaker
BACK LIGHT CONNECTION LCD SCREEN
INVERTER
12P
Left Speaker
I
1910 1206 12P 5P 1951 5P 1402 40P 1701 3P 1007 6P 2P 1008
AUDIO AMPLIFIER (5W)
1706
5P
1200
B
SSB
1704
1703
5P
2P
7011
7401
1401 4P
1010
10P
TUNER
FOR 2x5W
D
1110
SIDE I/O
1105
4P
1107
3P 10P 4P
1001
FOR 2x2W
6P
1870
BACK LIGHT CONNECTION LCD SCREEN
POWER IN
1108
J
FRONT IR/LED
1111
F_15810_034.eps 300605
5P
Block Diagrams, Testpoint Overviews, and Waveforms
LC4.1E AB
6.
18
Block Diagram Audio & Video
A3 B1
TUNER + IF
+5VSW +VTUN 1302 6,7 TV FM SCL B1 SDA COMPAIR 2 1 3 1331 SSIF SEL_IF 7316 3323 +5VSW 7320 B2 6323 4333 4334 2 3 1330 7 8 99 4 5 1 9 11 4331 10 F305 3311 3 8 VIF1 105 F306 2321 4327 2 1328 7
B2
F312
VIF2 104
HERCULES (IF+VIDEO)
7011 TDA120001H1 Input sw. RGB Matrix Blue & Black Stretch Gamma Corr. Yint CVBS/Y- X R_OSD G_OSD Fast Blanking B_OSD INA..D Dig. 2H/4H Combfilter Y Delay Adj. Chroma C-X c YUV Peaking SCAVEM U/V Delay CON BRI RO RGB Matrix Blue & Black Stretch Gamma Corr. GO BO 44 43 42 7013 EF
7014 EF Sound Tr aps CVBS1
I044
R_SDTV
TO
I041
G_SDTV 7012 EF
B8
SEE BLOCKDIAGRAM SCALER
F313
RF_AGC 98 AGC Detect
cvbs/y
I039
B_SDTV
F314
S IF2 S IF1 100
QSS Mixer/ AM Demod.
QSS/FM AM
Skin Tone U/V Tint Saturation
SAT
B2
F315
CS1A..D H/V
Output sw.
PA L/NTSC/ SECAM Decoder & Baseband Delay
Uint Vint
SCAVEM on Text cvbs/y
A3 B10
REAR IO SCART
10 SCART 1 21 20 CVBS-In FBL-In 7101 EF CVBS_SC1_AV1_IN
CVBS_SC1_AV1_IN AV3_CVBS_Y_IN
74 71
YUV IN/OUT Sync Sep H-OSC H-Shift H-Drive
HOUT
62
H_CS_SDTV
B8
+
10 AV3_C_IN 70
RGB/YPRPB Insert YUV Interface
H/V CVBS/Y-X
FB/SC
66
9 TER-Out 7 R-In
C-X
VDRA Vertical & EastWest Geometry
106
R/Pr-3
B/Pb-3
YOUT
UOUT
9 Status L-In 2 R-In 7 6 5
SC1 _CVBS_RF_OU T
SC1_CVBS_RF_OUT
INSSW3
6 G-In 5 B-In
VOUT
G/Y3
86 cvbs
VDRB
107
V_SDTV
B8
VIN
UIN 58
2 L-Out 1 R-Out
SC1_FBL_IN SC1_R_V_IN SC1_G_Y_ IN SC1_B_U_IN
52 51
50
49
55
54
53
59
57
1
2057 2056 5013
Y_NOTCH
B2
2 1
L
LR_SC1_AV1_IN
2027
B6
SC1_LR_RF-OUT
R
SECAM only
D
4 SVHS 2
SIDE I/O (AV Part)
C 3 1 5 Y/CVBS 7101 1108 4 2 1010 4 2
AV3_C_IN AV3_CVBS_Y_IN AV3_LR_IN PC_AUDIO_LR
B4
AUDIO AMPLIFIER (2X2W) (14, 15, and 17'')
AUD_SUP 7712 TDA1517ATW I706 3 I707 18
D
I710 8,9 2736 1701 1 2 1110 1 2 3
SIDE AV (LS CONN. PART)
15,16
AUDOUT SL
2718
CVBS
L R L SVHS AUDIO IN R
6 7 9 10
6
AUDOUT SR
7 9 10
2712 7702 7703
I711 2737 12,13
3
B2
STANDBY MUTE MUTE 17 MODE STANDBY 1706 1 2 3
AUDOUT SR
YIN
OR
B2
AUDOUT SL AUDOUT SL
B2
HERCULES (AUDIO)
AUDOUT SR
1106 HEADPHONE
1105 4 3 2 1
L R
7706 74LVCO8AD SOUND_ENABLE
7011 - SOUND QSS/FM AD Conv Std Stereo Decoder I2S Proc Audio Control Vol/Treb/ Bass Features DACs 61 60 AUDOUTLSR AUDOUTLSL
4 5
1 2 12
4/2W OR 8/5V
POWER_DOWN
& &
3
MUTE 7710
MUTE
B2
EXT_MUTE
11
OUT_MUTE OR
13
B1
SSIF(Tuner FM) 33
L/R_SC1_AV1_IN AV3_LR_IN
34,35 49,50 56,57 Audio Select ADC/DAC
I
62,63
AUDIO AMPLIFIER (2x5W) 20 & 23''
1706 7709 TDA7297D STANDBY AUDOUT SL AUDOUT SR 14 7 12 7703-1 MUTE 1703 AUD_SUP 7703-2 F_15310_035.eps 300605 13 5 R2 R+ 19 16 L+ L1704 1 2 3 4 5 1107 1 2 3 4 5
1 2 3 4
PC_AUDIO_LR
53,54
SC1_LR_RF_OUT
36,37 7370 OUT_MUTE
5
FROM 1,2-1200 INVERTER PANEL
Block Diagrams, Testpoint Overviews, and Waveforms
LC4.1E AB
6.
19
Block Diagram Scaler & Supply
B8
SCALER-IO
1485 28
B6
HS_PC B_Pb_PC G_Y_PC R_Pr_OC FROM B2
see blockdiagram VIDEO
SCALER (ANA IN)
7401 GM5221
B7
SCALER (LVDS, TTL OUT)
F534
PAN_VCC
1404 1 2
27 26
C5
7461 R_SDTV G_SDTV B_SDTV 27 3 7 25 1 5 21 22 23 14 11 G_MUX B_MUX G_MUX B_MUX 3523 2523 R_PR3524 2524 G_Y17 R_MUX R_MUX
22
25
C3 C4
LV_E0_TX0LV_E1_TX0+
EG1 EG0
LV_E0_TX0LV_E1_TX0+
3 4
C1 C2
151 147 142 152 148 143 181 182
8 16 24
24 23 18 17
RXCn RXCp RX0p RX0n RX1p RX1n VS_PC RX2p RX2n
B6
G_Y_PC B_Pb_PC
20 19
LV_E2_TX1LV_E3_TX1+
ER7 ER6
LV_E2_TX1LV_E3_TX1+
6 8
B6 B6
B7
HD_FILT ER SD_PCHD_SEL PC_HD_SEL
+ TRIPLE ADC & PLL
1 9 17
10 9
3527 2527 B_PB-
18 17
LV_E4_TX2LV_E5_TX2+
ER5 ER4
LV_E4_TX2LV_E5_TX2+
10 12
B6 B6
DVI-I CONNECTOR
8 2 1
7463
B6 B6
B2
H_CS_SDTV 13 V_SDTV 1 HS_PC 12 VS_PC 2 10,11 SD_PCHD_SEL
7510 14 1 15 5 6 9 8 VSYNC 2 3 4 CS_HSYNC
F499
7403 M29W040B-55k1
DATA
14 13
LV_E8_TX3LV_E9_TX3+
ER1 ER0
LV_E6_TX3LV_E7_TX3+
18 20
F503
FLASH ROM 512kx8
ADDRESS
E
5x
TOP CONTROL
B3
1308 1008 2 2
HERCULES
(FRONT CONTROL LOOP THROUGH)
ROM INTERFACE
16 15
LV_E6_TXCLV_E7_TXC+
ER3 ER2
LV_E8_TXCLV_E9_TXC+
14 16
B7
7510
7516 MK1575-01
12
B7
+3V3STBY
+5VSW
B2
CHANNEL + CHANNELVOLUME+ VOLUMEPOWER
H_CS_SDTV
11
KEYBOARD
KEYBOARD
3062 7060
6060
B7
12 FBIN CLOCK RECOVERY PLL 2 PLL_SEL
FBIN
38
LV_O0 LV_O1 LV_O2 LV_O3 LV_O4 LV_O5 LV_O6 LV_O7 LV_O8 LV_O9
1402
EB3 EB2 EB1 EB0 EG7 EG6 EG5 EG4 EG3 EG2 24x
VIDEO
37 36
1 17 19 21 23 25 27 29 31
FED
To LCD MONITOR (TTL)
PLL_SEL 169
35 34
J
FRONT IR/LED
7802
1 RC RECEIVER
N.C.
1 2
1 2
KEYBOARD
170
32 31
3802
RXCn
133 132 128 129 123 124 118 119
47 48 49 30 29
+3V3STBY
7803 7801 6801 GREEN RED 7804
IR LED_SEL +3V3STBY PC_TV_LED
3 4 5 6
3 4 5 6 +3V3STBY
IR LED_SEL
B2
B8 B8
RXCp RX0p
B8 B8
RX0n RX1p
PC_TV_LED
B8 B8
DVI INPUT
33 35 37 39 42
43 44 45 46
PD20 PD21 PD22 PD23
EB4 EB5 EB6 EB7
FHSYNC FVSYNC FSSYNC PAN_VCC 38,36
RX1n RX2p
B8 B8
RX2n
FED FHSYNC FVSYNC FSHCLK PANEL_PWR_CTL LAMP_ON_OFF
B9 B5
B2
HERCULES (CONTROL)
7011 u-Processor 114 111 KEYBOARD IR STATU S_1 P50_LINE_ITV_IR_SW 120 115 97 119 116 123 107 108 HERCULES 109 IC
SDM PINS 4015 SEL_IF SOUND_ENABLE PC-TV-LED SCL SDA B1 B7
D
B1
SIDE AV (UART PART)
1111 1401 1 2 3 4
B2
55 67
1112
B3
+3V3STBY 3123 3124
1 2 3 4
7402 M24C32 +3V3STBY EEPROM (NVM) 4kx8 SDA SCL SDA_IO SCL_IO WC
68
1
UART CONN. FOR SERVICE
81
TV_SC_COM TV_IRQ FBIN PC_DET SD_PCHD_SEL POWER_DOWN 7437 BACK_LIGHT_ADJ1 BACK_LIGHT_ADJ2 PLL_SEL
B2
2 3
SYSTEM
3430 3431 3442 3441
82 83 85 88 90
B2
B6 B8 B8 B2
B8
B8 B3
5 6 7099 104 NVM_WP 7 NVM 2k x 8 102 EXT_MUTE TV_SC_COM TV_IRQ STANDBY
B5
B3 B5 B5 B3 B4 B4
TV-SUPPLY
3936 3937 7936
B3
B5
B5 B5
JTAG_SDL_UART_TX JTAG_SCL_UART_RX
98 100 101
+1V8_A +1V8_B
3,93,96 100,117,118,124 127 P1.4
99 98 122
B8
1910 1 2
F903
AUD_SUP
8
7930 S Q R
1
HERC_RESET
126 6073 128 6076 1001 POWER_DOWN B5
2 2931 3 REF 4 5931
F905
B9
6930
SUPPLY
7955 3 2 2997 F954 +1V8
DECDIG
+3V3STBY +5VSW
14 DECDIG 4,5,7,9,88,90,94 15,69,82
3 4 5
7 +3V3STBY +3V3STBY 3931 VCC 6
OSC
+3V3STBY
10 11
2007
1 5 F913 5932 +5VSW F911 6910 +VTUN
5930
2006
6 7
B3
HERCULES (SUPPLY)
F014
+1V8_A +1V8_B 7070
7001,7003 +3V3STBY
FROM SUPPLY PANEL
F906
8 9 10 11 12
3910 +12VSW 7910 7920
5910
F907 POWER_DOWN B2
B3
B4
6911
STANDBY B2 BACK_LIGHT_ADJ1 B7 LAMP_ON_OFF B7
5920 1
DECDIG HERC_RESET
F015
3 2921 2 F912
+8VSW_TV
F_15310_036.eps 300605
(MAINLY FOR 20")
1870
1007
1403 14M31818
CLK_SYN
33
To LCD MONITOR (LVDS)
B6
R_Pr_OC
ANALOG INPUT PORT
21
LVDS Tx
Block Diagrams, Testpoint Overviews, and Waveforms
LC4.1E AB
6.
20
Testpoint Overview SSB (Top Side)
F528 F529 F530 F531 F532 F535 F536 F537 F538 F539 I414 I416 I418 I420 I422 B6 B6 B5 B5 B5 B6 B5 B6 B6 B6 B5 B5 B5 B5 B5
X1
SERVICE TESTPOINT
X1
X1
500mV / div DC 5ms / div
3139 123 6019.1
F_15310_025.eps 270605
Block Diagrams, Testpoint Overviews, and Waveforms
LC4.1E AB
6.
21
Testpoint Overview SSB (Bottom Side)
F002 F003 F004 F005 F006 F007 F009 F013 F014 F015 F017 F018 F020 F021 F022 F023 F026 F029 F034 F040 F041 F042 F043 F044 F045 F050 F051 F099 F101 F102 F103 F104 F105 F106 F107 F108 F109 F110 F111 F112 F113 F114 F115 F116 F301 F302 F303 F305 F306 F307 F308 F309 F310 F311 F312 F313 F314 F315 F401 F402 F403 F404 F405 F406 F407 F408 F409 F410 F411 F412 F413 F414 F415 F416 F417 F455 F456 F457 F471 F472 F473 F474 F475 F476 F477 C4 B2 A3 D4 D3 E2 A3 B3 B5 B4 A2 A3 B3 B3 B4 C2 C3 D3 D3 D4 D4 D3 D3 D3 D3 A3 A3 B2 E4 E4 E4 E3 E3 E3 E3 E3 E3 E2 E2 E2 E2 E3 E3 E3 E5 E4 D4 D5 D5 D5 E4 D4 B3 D5 C5 C5 C5 C5 D1 D1 C1 C2 C2 C2 C2 D1 C1 C1 C1 C1 C1 B1 B1 C1 C2 C2 C2 C2 E1 D1 D2 E1 E1 E1 D1 F478 F479 F480 F481 F484 F485 F487 F489 F497 F498 F499 F501 F502 F503 F504 F505 F506 F507 F533 F534 F707 F708 F710 F751 F752 F753 F903 F904 F905 F906 F907 F908 F909 F910 F911 F912 F913 F914 F951 F952 F954 I005 I008 I009 I011 I015 I016 I017 I018 I019 I020 I022 I034 I035 I036 I039 I040 I041 I043 I044 I046 I047 I048 I049 I051 I052 I053 I055 I056 I057 I058 I059 I060 I061 I062 I063 I064 I067 I068 I069 I070 I071 I082 I091 I093 E1 E1 E1 E1 E1 E1 E2 D1 D2 E2 C1 D1 D3 C1 D1 D1 E2 E2 B1 B2 B4 A4 A5 D6 D6 C6 A5 A6 A6 A6 A6 A6 A6 A6 B5 C5 B5 A6 A1 A1 B3 B5 D3 B4 D4 B3 D4 B4 B4 B4 B4 C5 D3 D3 D3 D1 C3 D2 D3 D2 D3 D3 D3 D3 D3 D3 D3 C3 B3 D2 C2 C3 C2 C2 C3 B3 B3 C3 B3 D3 C3 B3 D5 C2 B3 I094 I096 I098 I101 I102 I103 I104 I105 I106 I107 I108 I109 I110 I111 I112 I113 I114 I115 I116 I301 I302 I303 I304 I306 I307 I308 I310 I401 I402 I403 I404 I405 I406 I407 I408 I410 I411 I412 I413 I419 I438 I451 I462 I463 I464 I483 I484 I485 I486 I487 I488 I492 I493 I494 I496 I512 I513 I514 I516 I517 I518 I701 I705 I706 I707 I708 I709 I710 I711 I714 I715 I719 I720 I721 I722 I751 I752 I753 I901 I902 I904 I905 I906 I907 I908 B4 B4 A3 E4 E4 E4 E3 E3 E3 E3 E3 E3 E2 E2 E4 D4 E4 D3 E3 D5 D5 D5 D5 D5 D5 D5 D5 D2 D2 C1 C1 D2 D2 D2 D2 C2 C2 C2 A2 A1 B1 B2 D1 D1 D1 E1 E2 E1 E1 E1 E1 C1 C1 C1 C1 D1 D1 D1 D2 E2 D3 A4 A5 B4 A4 A5 B4 B4 A4 A5 B5 B5 A5 B3 A3 C6 D6 D6 B6 C6 B6 A6 B6 B6 C6 I909 I910 I911 I912 I951 I952 I953 I954 I955 I956 I957 A6 B6 B6 B6 B1 A1 A1 A1 A1 B2 A2
3139 123 6019.1
F_15310_026.eps 270605
Block Diagrams, Testpoint Overviews, and Waveforms
LC4.1E AB
6.
22
Testpoint Overview Front IR / LED Panel
F801 A1 F802 A1 F803 A1 F804 A1
Personal Notes:
3139 123 5836.1
E_14520_024.eps 150904
E_06532_012.eps 131004
Block Diagrams, Testpoint Overviews, and Waveforms
LC4.1E AB
6.
23
I2C Overview
I2C BUS INTERCONNECTION DIAGRAM
B2 HERCULES
+3V3STBY +3V3STBY
B1 TUNER IF
ERR 6
B7 SCALER (LVDS)
3096 7011 20 SET PROCESSOR 21 PART OF VIDEOPROCESSER (HERCULES)
3088
3083 3084
F303
SDA SCL
F302
SDA SCL
+3V3STBY +3V3STBY
3303
3302
3430
3431
3433
3414
+3V3STBY
5
6
5
4
1331 1 2 3
78
77 93 92 SDA_IO SCL_IO
3097 25 NVM_WP 7
7099 M24C16 EEPROM (NVM)
1302 UR1316 TUNER
ComPair
CONNECTION FOR SERVICE
7401 GM5221 SCALER
+3V3STBY
ERR 4
ERR 6
ERR 9
ERR 10
3444
5
6
B8
SCALER-IO (OPTIONAL)
84
NVM_WPP
7
7402 M24C32 EEPROM
ERR 8
C1 C2
C3 C4
1687 15
3469
DVI_DET
DDC_DVI_5V
B7
3514 3495
80 79 5 6
8 16 24
7 6
1 9 17
SDA_DVI SCL_DV1
3497 3496
DVI CONNECTOR
7490 M24C02 EEPROM 256x8
B6
SCALER ANA IN
D
SIDE I/O (UART PART)
+3V3STBY +3V3STBY
1111 1401 1 2 3 4
ADDRESS ROM INTER FACE DATA +3V3STBY 3123 3124 6109 6110 6109 6110
1 2 3 4
7403 M29W040B FLASH ROM 512kx8
ERR 4
1112 1
+3V3STBY JTAG_SDA_UART_TX JTAG_SCL_UART_RX
3401
3402 3442 3441 72 71
UART FOR SERVICE
2 3
F_15310_037.eps 300605
Block Diagrams, Testpoint Overviews, and Waveforms
LC4.1E AB
6.
24
Supply Voltage Overview
SUPPLY PANEL (INVERTER)
1200
B5
1910 1 2
TV SUPPLY
F903 A5 +5VSW A4 A5 +VTUN F905 A5 +3V3STBY
B1
AUD_SUP AUD_SUP
TUNER + IF
A5
B8
+3V3STBY
SCALER IO
+3V3STBY
+5VSW +VTUN +3V3STBY (FOR ITV ONLY)
A5
5520
+5VSW
6485
VDD +5VSW
3 4 1001 5 6 7
+3V3STBY
+3V3STBY
F906
A8 A7 A6 A4 A3 A2 A1
B2
A5 +3V3STBY A5 +8VSW_TV
HERCULES
1485 DVI CONNECTOR 14
5520
DCC_DVI_5V
8 9 10 11 12 POWER_DOWN STANDBY
+12VSW
+12VSW
A9 A14
+3V3STBY +8VSW_TV 3374 6005 TO 45 - 7011 +5VSW
A2 A2
3936
A5 +5VSW
B10 REAR IO SCART
A5
BACK_LIGHT_ADJ1 A7 LAMP_ON_OFF
A7
14 3937 7936
7011
+1V8_B HERCULES 127
A10 A8 A7 A5 A2 A1 A5 +3V3STBY
+5VSW
+5VSW
+1V8_A
3935
7930 MC34063AD 8 SUPPLY 1 IC
5931 6930 5910
3910
5932
F913
+5VSW
F911
TO LCD DISPLAY
B3
HERCULES
+3V3STBY
J
1007 5
1870 5
FRONT IR/LED
+12VSW 5930
6
2
6910
+VTUN
6911 -/C33 F912
A1
7001
+3V3STBY
+1V8_A
7920 L78M08CDT +12VSW 5920 1 3
7910
+8VSW_TV
+8VSW_TV
A2
7004
CONTROL
7003
+3V3STBY
A5
+1V8_B
B9
SUPPLY
7955 +1V8 +1V8
A6 A5 +5VSW
7002 7061 7070
CONTROL +5VSW
+3V3STBY
5955
7954
S D
7953
5959
*
B4
AUDIO AMPLIFIER + PROCESSING
AUDIO_SUP +5VSW +3V3STBY
A5 AUDIO_SUP
PANEL_PWR_CTL
G
A7
CONTROL
7404
5957
*
A5 +5VSW A5 +3V3STBY
D B6
A5 +3V3STBY
SIDE I/O
SCALER (ANA IN)
1401
+3V3STBY +3V3STBY
1
1111 1 N.C.
5961
5401 5404
+3V3_AVDD +3V3_DVDD
*SEE DIVERSITY LIST
A9 +1v8
+3V3_AVDD +3V3_DVDD
I
1703 1 2
AUDIO AMPLIFIER (2x5W) (20" & 23")
AUD_SUP
+1V8
5402 5403
+1V8_AVDD +1V8_DVDD
B7
A5 +3V3STBY A5 +5VSW
SCALER (LVDS OUT)
+3V3_DVDD +3V3_AVDD
+3V3STBY +5VSW
LVDS 1404 CONN. 1 2
OR
LCD DISPLAY
PAN_VCC
1402
36 38
OR
TT4 CONN.
42
F_15310_038.eps 300605
Circuit Diagrams and PWB Layouts
LC4.1E AB
7.
25
7. Circuit Diagrams and PWB Layouts
SSB: Tuner + VIF
1
2
3
4
5
6
7
8
9
B1 TUNER + IF
A
1302 UR1316/A I H-3
PRE-FIL TRACK FILTER GAIN CTRL PRE-AMP TRACK FILTER
B1
With FM Without FM
*
1302 UR1316 UV1318
A
RF TV
MIX-OSC IF AMP
IFOUT FM_IFOUT 11 10 0V 0V
F306 F305
IF_TER +5VSW
I57
ITV INTERFACE 1332
+3V3STBY
B
4 3 2 1
5
6
RF FM
F301 12 13
AGC DET PLL MT
TU|FM 1 AGC 2V3 9 VT 32V5 7 VCC 5V3 ADC SDA SCL 6 NC 5V3 AS 15
B
5309 12u 3309 NC 10K 2309 330u 6.3V I306 6310 F308 BAS316 3322 3311 2324 10n 2321 10K I301 2311 22u 6.3V 10n 5321 390n 3321 2K2 3323 2K2 6323 1SS356 I307 6K8 1328 OFWK3953L 2 3 1 4 5 6 9 10 13 14 15 18 I ISWI O1 O2 7 8 F313 VIF1 B2 F312 B2 5324 6u8 +5VSW
BM04B-SRSS-TBT
MT
14
1331 1 2 3 S3B-PH-K
S301
S302
C
VIF2
C
3302 100R B2 SCL
3303 100R F302
+VTUN
3327 1K0
NC GND
B2
SDA
F303 RES 2302 22p RES 2303 22p
11 12 16 17
I308 2308 2u2 50V 2307 47n 7320 BC847BW 3319 27K I310
D
B2 B2 RF_AGC SEL_IF F309 F310
D
1330 OFWK9656L I ISWI O1 O2 7 8 F314 SIF2 B2
3V5
2 3 1 4 5 6 9 10 13 14 15 18
0V
3320 18K +5VSW
NC GND
11 12 16 17
F315
SIF1
B2
E
2314 100n 3314 100K I303 2313 1n0 I302 7316 BFS20 3316 820R
E
40M4 SSIF B2
1302 A2 1328 C8 1330 D8 1331 C1 1332 B1 2302 D2 2303 D2 2307 D3 2308 D3 2309 C5 2311 C5 2313 F5 2314 E5 2317 F6 2318 E6 2321 C6 2324 C7 3302 C1 3303 C1 3309 B5 3311 C5 3314 E5 3315 F5 3316 E6 3317 F6 3319 D5 3320 E6 3321 C6 3322 C7 3323 C7 3327 D3 4339 C3 5309 B5 5321 C6 5324 B7 6310 C5 6323 D7 7316 F5 7320 D6 F301 B1 F302 D2 F303 D2 F305 B4 F306 B4 F307 C3 F308 C4 F309 D2 F310 D2 F311 E6 F312 C9 F313 C9 F314 D9 F315 E9 I301 C4 I302 F5 I303 E5 I304 F6 I306 C7 I307 C6 I308 D6 I310 D6 S301 C1 S302 C1
COMPAIR CONNECTION FOR SERVICE
F307
RES 4339
3 2V9 4 2V6 5 2V6 8 NC
2 NC
0V6
2318 1n0
F311
1V2 0V5
3315 150K
I304 3317 560R 2317 1n0
F
3139 123 6019.1
F
F_15310_007.eps 240605
FOR FM RADIO ONLY
1
2
3
4
5
6
7
8
9
Circuit Diagrams and PWB Layouts
LC4.1E AB
7.
26
SSB: Hercules 1
2
3
4
5
6
7
8
9
10
11
B2 HERCULES
A
+8VSW_TV 1010 5370 5371 5008 5002 5372 B2 B2 B2 B2 AV3_CVBS_Y_IN AV3_C_IN AV3_L_IN AV3_R_IN F040 F041 F042 F043 F044 F045 12 11 F034 1 2 3 4 5 6 7 8 9 10 3374 10R +5VSW +5VSW 6005 BAS316 +1V8_A 5071 +1V8_B +3V3STBY +3V3STBY +1V8_A +1V8_A 5005 +5VSW 3052 100R +5VSW I057 5004 5006 2051 10u 16V
B2
A
36 2V 2379 220n 220n 2044 3V3 41 2394 100n I055 35 3V3 I017 125 3V3 F003 2004 220n 33 2V 220n 2378 2V 12 2074 220n 29 2V I015 5 I019 1262V
FROM 1108 OF SIDE AV BD
220n 220n
RES 2396 10u 16V 2395 100n
I070 3V3 114 5V4 VP1 82 5V4 VP2 47 VP3 2013 100n I008
2033
2023 220n 3012 I040 1V9
4V4
2049 10u 16V
2068 2076
220n
B
AUDIO PROCESSING
GND_COMB 7370-2 BC847BS 4 0V 1 5 3 3V9 6
7370-1 BC847BS OUT_MUTE B4 0V 2
100R RES 4050
7012 BC847BW 1V3 I039
B_SDTV
B8
B
7011 TDA12001H1/N1B50
5V4
4V4 3V9 SC1_L SC1_R RF_AGC B10 B10 B1 RES 4051 AUDOUTLSL AUDOUTLSR B4 B4 3020 I069 1V9 1V3 4V4 7014 BC847BW I044 R_SDTV B8 3019 100R I043 1V9 1V3 7013 BC847BW I041 G_SDTV B8
TO SIDE I/O
PC_AUDIO_L PC_AUDIO_R 2355 2391 2382 2383 2399 2389 2384 2385 2390 47p 100n 100n 47p 47p 100n 100n 47p 2u2 50V 100n 100n 2V2 2V2 2V2 2V2 2V2 2V2 2V2 2V2 2V2 1V3 83 76 75 73 72 80 79 95 94 49
C
2376 2377
B2 B2
AV3_L_IN AV3_R_IN
B10 L_SC1_AV1_IN B10 R_SC1_AV1_IN SC1_B_U_IN B10 SC1_G_Y_IN B10 SC1_R_V_IN B10 +3V3STBY B2 B10 B2 AV3_C_IN CVBS_SC1_AV1_IN AV3_CVBS_Y_IN 2060 100n
2036 2037
47p 47p
1V3 50 2032 2031 2030 RES 3048 2052 RES 3054