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Color Television
Chassis
L03.2U
AA
E_14560_000.eps 260204
Contents
Page
1. Technical Specifications, Connections, and Chassis Overview 2 2. Safety Instructions, Warnings, and Notes 4 3. Directions for Use 6 4. Mechanical Instructions 7 5. Service Modes, Error Codes, and Fault Finding 8 6. Block Diagrams, Test Point Overviews, and Waveforms Block Diagram 13 I2C and Supply Voltage Overview 14 Testpoint Overview Mono Carrier and CRT Panel 15 7. Circuit Diagrams and PWB Layouts Diagran Mono Carrier: Power Supply (A1) 16 Mono Carrier: Deflection (A2) 17 Mono Carrier: Tuner IF (A3) 18 Mono Carrier: Video Processing (A4) 19 Mono Carrier: Audio BTSC Stereo Decoder(A5) 20 Mono Carrier: Audio Ampl & Sound Proc. (A6) 21 Mono Carrier: Front I/O, Control & HP (A7) 22 CRT Panel (B) 27 8. Alignments 29 9. Circuit Descriptions, List of Abbreviations, and IC Data Sheets 36 Abbreviation List 39 IC Data Sheets 40 10. Spare Parts List 41 11. Revision List 44
PWB 23-26 23-26 23-26 23-26 23-26 23-26 23-26 28
© Copyright 2006 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 WS 0665 BG CD Customer Service
Printed in the Netherlands
Subject to modification
EN 3122 785 14561
EN 2
1.
L03.2U AA
Technical Specifications, Connections, and Chassis Overview
1. Technical Specifications, Connections, and Chassis Overview
Index of this chapter: 1.1 Technical Specifications 1.2 Connections 1.3 Chassis Overview 1.2.2 Rear Connections
1.1
1.1.1
Technical Specifications
Reception Tuning system Color systems Sound systems A/V connections Channel selections PLL NTSC M Mono, or BTSC with SAP NTSC M 181 Presets/ Channels : Full-Cable : 45.75 MHz : 75 ohm (F type), Coax : : : : : :
75 Ohm ANT.
E_14560_015.eps 260204
IF frequency Aerial input 1.1.2 Miscellaneous Audio output Mains voltage Mains frequency Ambient temperature Minimum air pressure Maximum humidity Power consumption Standby Power consumption
Figure 1-2 Rear Connections FM Ant 1 - F type
75 ohm, coax
D
: : : : : : : : : :
Mono: 1 Wrms Stereo: 2 x 1 Wrms 105 - 132 V (± 10 %) 50 / 60 Hz (± 5 %) + 5 to + 45 deg. C 60 kPa (=600 mBar) 90 % 36 W (13") to 50 W (20") <3W
1.2
1.2.1
Connections
Front Connections
INSTALL/MENU
INSTALL MENU POWER
- VOLUME +
CHANNEL
VIDEO
AUDIO L AUDIO R
CHANNEL - VOLUME + IR LED E_14560_014.eps 220304
Figure 1-1 Front Connections Headphone Bk - Headphone, 3.5 mm 8 - 600 / 4 mW Audio / Video In Ye - Video 1 Vpp / 75 ohm Wh - Audio L 0.2 Vrms / 10 kohm Rd - Audio R 0.2 Vrms / 10 kohm
ot
jq jq jq
Technical Specifications, Connections, and Chassis Overview 1.3 Chassis Overview
L03.2U AA
1.
EN 3
B1
CRT PANEL
POWER SUPPLY DEFLECTION TUNER IF IF, VIDEO PROCESSING, CONTROL, AND SYNC. MONO CARRIER AUDIO BTSC STEREO DECODER AUDIO AMP + MONO SOUND PROC. FRONT I/O + FRONT CONTROL + HEADPHONE
A1 A2 A3 A4 A5 A6 A7
E_14560_013.eps 240304
Figure 1-3 Chassis overview
EN 4
2.
L03.2U AA
Safety Instructions, Warnings, and Notes
2. Safety Instructions, Warnings, and Notes
Index of this chapter: 2.1 Safety Instructions 2.2 Maintenance Instructions 2.3 Warnings 2.4 Notes 1. Perform the "general repair instruction" noted above. 2. Clean the power supply and deflection circuitry on the chassis. 3. Clean the picture tube panel and the neck of the picture tube.
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. · Wear safety goggles when you replace the CRT. Safety regulations require that after a repair, the set must be returned in its original condition. Pay in particular attention to the following points: · General repair instruction: as a strict precaution, we advise you to re-solder the solder connections through which the horizontal deflection current flows. In particular this is valid for the: 1. Pins of the line output transformer (LOT). 2. Fly-back capacitor(s). 3. S-correction capacitor(s). 4. Line output transistor. 5. Pins of the connector with wires to the deflection coil. 6. Other components through which the deflection current flows. Note: This re-soldering is advised to prevent bad connections due to metal fatigue in solder connections, and is therefore only necessary for television sets more than two years old. · Route the wire trees and EHT cable correctly and secure 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, to prevent the cord from touching the CRT, hot components, or heat sinks. · 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
Warnings
· In order to prevent damage to ICs and transistors, avoid all high voltage flashovers. In order to prevent damage to the picture tube, use the method shown in figure "Discharge picture tube", to discharge the picture tube. Use a high voltage probe and a multi-meter (position VDC). Discharge until the meter reading is 0 V (after approx. 30 s).
V
E_06532_007.eps 250304
Figure 2-1 Discharge picture tube · 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 prevents circuits from becoming unstable.
· · ·
2.4
2.4.1
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 Service Default Mode (see chapter 5) with a color 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
2.2
Maintenance Instructions
We recommend a maintenance inspection carried out by qualified service personnel. The interval depends on the usage conditions: · When a customer uses the set under normal circumstances, for example in a living room, the recommended interval is three to five years. · When a customer uses the set in an environment with higher dust, grease, or moisture levels, for example in a kitchen, the recommended interval is one year. · The maintenance inspection includes the following actions:
·
·
Safety Instructions, Warnings, and Notes
semiconductors in the unit, irrespective of the type indication on these semiconductors. Manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic" and the "double-D symbol", are trademarks of Dolby Laboratories. 2.4.4
L03.2U AA
2.
EN 5
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).
·
2.4.2
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.
·
· · · ·
E_06532_024.eps 230205
Figure 2-2 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.
2.4.3
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 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 neighboring 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 "Repair downloads". Here you will find Information on how to deal with BGA-ICs.
P
b
Figure 2-3 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 stabilize 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 stabilized 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 clean the solder-joint from old tin and re-solder with new tin. · 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!
EN 6
·
3.
L03.2U AA
Directions for Use
on the market is produced with e.g. two different types of displays, coming from two different O.E.M.s. By looking at the third digit of the serial number, the service technician can see if there is more than one type of B.O.M. used in the production of the TV set he is working with. He can then consult the At Your Service Web site, where he can type in the Commercial Type Version Number of the TV set (e.g. 28PW9515/12), after which a screen will appear that gives information about the number of alternative B.O.M.s used. If the third digit of the serial number contains the number 1 (example: AG1B033500001), then there is only one B.O.M. version of the TV set on the market. If the third digit is a 2 (example: AG2B0335000001), then there are two different B.O.M.s. Information about this is important for ordering the correct spare parts! For the third digit, the numbers 1...9 and the characters A...Z can be used, so in total: 9 plus 26 = 35 different B.O.M.s can be indicated by the third digit of the serial number. 2.4.6 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.
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.
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 "Repair downloads". For additional questions please contact your local repair help desk. 2.4.5 Alternative BOM identification In September 2003, Philips CE introduced a change in the way the serial number (or production number, see Figure 2-2) is composed. From this date on, the third digit in the serial number (example: AG2B0335000001) indicates the number of the alternative BOM (Bill of Materials used for producing the specific model of TV set). It is possible that the same TV model
·
3. Directions for Use
You can download this information from the following websites: http://www.philips.com/support http://www.p4c.philips.com
Mechanical Instructions
L03.2U AA
4.
EN 7
4. Mechanical Instructions
Index of this chapter: 4.1 Rear Cover Removal 4.2 Service Position Main Panel 4.3 Rear Cover Mounting
4.3
Rear Cover Mounting
Before you mount the rear cover, perform the following checks: 1. Check whether the mains cord is mounted correctly in its guiding brackets. 2. Re-place the strain relief of the AC power cord into the cabinet. 3. Check whether all cables are replaced in their original position
4.1
Rear Cover Removal
1. Remove all fixation screws of the rear cover. 2. Now pull the rear cover in backward direction to remove it.
4.2
Service Position Main Panel
1. Disconnect the strain relief of the AC power cord. 2. Remove the main panel, by pushing the two center clips outward [1]. At the same time pull the panel away from the CRT [2]. 3. If necessary, disconnect the degaussing coil by removing the cable from the (red) connector 0212. 4. Move the panel somewhat to the left and flip it 90 degrees [3], with the components towards the CRT.
1 1
2
A
3
B
Figure 4-1 Service Position
CL 16532016_006.eps 220501
EN 8
5.
L03.2U AA
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 5.4 Service Tools 5.5 Error Codes 5.6 Protections 5.7 Repair Tips 5.2.1 Service Default Alignment Mode (SDAM) Purpose · To change option settings. · To create a predefined setting to get the same measurement results as given in this manual. · To display / clear the error code buffer. · To override SW protections. · To perform alignments. Specifications · Tuning frequency: 61.25 MHz (channel 3) for NTSC-sets (Nafta). · Color system: NTSC-M. · All picture settings at 50 % (brightness, color contrast, hue). · Bass, treble and balance at 50 %; volume at 25 %. · All service-unfriendly modes (if present) are disabled, like: (Sleep) timer, Child/parental lock, Blue mute, Hotel/hospitality mode Auto switch-off (when no "IDENT" video signal is received for 15 minutes), Skip / blank of non-favorite presets / channels, Auto store of personal presets, Auto user menu time-out. · Operation hours counter. · Software version. · Option settings. · Error buffer reading and erasing. · Software alignments. How to Enter SDAM Use one of the following methods: · Use a standard customer RC-transmitter and key in the code 062596 directly followed by the "M" (menu) button or · Short jumper wires 9625 and pin 4 of 7200 on the mono carrier (see Fig. 8-1) and apply AC power. Then press the power button (remove the short after start-up). · Caution: Entering SDAM by shorten wires 9625 and pin 4 of 7200 will override the +8V-protection. Do this only for a short period. When doing this, the service-technician must know exactly what he is doing, as it could lead to damaging the set. · Or via ComPair. After entering SDAM, the following screen is visible, with S at the upper right side for recognition.
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. On the PCB, test points are specifically mentioned in the service manual as "half moons" with a dot in the center. Table 5-1 Test Point Overview TEST POINT P1,P2,P3,P4,P5 CIRCUIT POWER SUPPLY DIAGRAM A1 A2 A3 A4 A5 A6
D1,D2,D3,D4,D5,D6,D Deflection 7,D8,D9,D10 T1 TUNER & IF V1,V2,V3,V4,V5,V6,V7, VIDEO PROCESSING V8,V9,V10,V11 A1,A2,A3,A4,A5 A7,A8,A9,A10,A11 AUDIO PROCESSING AUDIO AMPLIFIER + MONO SOUND PROCESSING FRONT IO + FRONT CONTROL + HEADPHONE
F1
A7
V12,V13,V14,V15,V16, CRT PANEL V17
B1
Perform measurements under the following conditions: · Service Default Alignment Mode. · Video: color bar signal. · Audio: 3 kHz left, 1 kHz right.
5.2
Service Modes
Service Default Alignment Mode (SDAM) offers several features for the service technician. There is also the option of using ComPair, a hardware interface between a computer (see requirements) and the TV chassis. It offers the ability of structured trouble shooting, error code reading and software version readout for all chassis. Requirements: To run ComPair on a computer (laptop or desktop) requires, as a minimum, a 486 processor, Windows 3.1 and a CD-ROM drive. A Pentium Processor and Windows 95/98 are however preferred (see also paragraph 5.4). Table 5-2 SW Cluster SW Cluster L3SUM1 L3SUN1 Software name UOC type UOC Special Diversity Features 55K Mono ROM Size 55K Stereo ROM Size (non DBX)
L L L L A A A B C D X . Y E R R X X X X X X X X X X X X X X X X X X X X X X X X X C O A T W G A L P K U H E U E T B N I O D A R I O N S E T M I R E T O N E E T R Y O
S X X X C L E A R > > > > > X X X ? 0
CL 36532044_033.eps 130603
L03UM1 x.y TDA9377 L03UN1 x.y TDA9377
Figure 5-1 SDAM Menu
Abbreviations in Software name: U = Nafta, M = Mono, N = Stereo.
·
LLLL. This is the operation hours counter. It counts the normal operation hours, not the standby hours.
Service Modes, Error Codes, and Fault Finding
· AAABCD-X.Y. This is the software identification of the main micro controller: A = the project name (L03). B = the region: E= Europe, A= Asia Pacific, U= NAFTA, L= LATAM. C = the feature of software diversity: N = stereo nonDBX, S = stereo dBx, M = mono, D = DVD D = the language cluster number: X = the main software version number. Y = the sub software version number. S. Indication of the actual mode. S= SDAM= Service Default Alignment mode. Error buffers. Five errors possible. Option bytes. Seven codes possible. Clear. Erase the contents of the error buffer. Select the CLEAR menu item and press the CURSOR RIGHT key. The content of the error buffer is cleared. Options. To set the Option Bytes. See chapter 8.3.1 for a detailed description. AKB. Disable (0) or enable (1) the "black current loop" (AKB = Auto Kine Bias). Tuner. To align the Tuner. See chapter 8.3.2 for a detailed description. White Tone. To align the White Tone. See chapter 8.3.3 for a detailed description. Geometry. To align the set geometry. See chapter 8.3.4 for a detailed description. Audio. Use default value (Stereo set only), align when necessary. See chapter 8.3.x for a detailed description.
L03.2U AA
5.
EN 9
Colors not Correct / Unstable Picture 1. Press the MENU button on the remote control. 2. Select the INSTALLATION sub menu. 3. Select and change the SYSTEM setting until picture and sound are correct. 4. Select the STORE menu item. Picture too Dark or too Bright Increase / decrease the BRIGHTNESS and / or the CONTRAST value when: · The picture improves after you have pressed the "Smart Picture" button on the remote control. · The picture improves after you have switched on the Customer Service Mode The new "Personal" preference value is automatically stored. White Line around Picture Elements and Text Decrease the SHARPNESS value when: · The picture improves after you have pressed the "Smart Picture" button on the remote control. The new "Personal" preference value is automatically stored. Snowy Picture · No or bad antenna signal. Connect a proper antenna signal. · Antenna not connected. Connect the antenna. · No channel / pre-set is stored at this program number. Go to the INSTALL menu and store a proper channel at this program number. · The tuner is faulty (in this case the CODES line will contain error number 10). Check the tuner and replace / repair if necessary. Snowy Picture And/or Unstable Picture · A scrambled or decoded signal is received. Black and White Picture Increase the COLOR value when: · The picture improves after you have pressed the "Smart Picture" button on the remote control. The new "Personal" preference value is automatically stored. Menu Text not Sharp Enough Decrease the CONTRAST value when: The picture improves after you have pressed the "Smart Picture" button on the remote control. The new "Personal" preference value is automatically stored. 5.3.2 Sound Problems No Sound or Sound too Loud (after Channel Change / Switching On) Increase / decrease the VOLUME level. Press the Smart Sound button repeatedly to access 4 different types of sound settings and choose your desired setting.
· · · ·
· · · · · ·
How to Navigate · In SDAM, select menu items with the CURSOR UP/DOWN key on the remote control transmitter. The selected item will be highlighted. When not all menu items fit on the screen, move the CURSOR UP/DOWN key to display the next / previous menu items. · With the CURSOR LEFT/RIGHT keys, it is possible to: Activate the selected menu item. Change the value of the selected menu item. Activate the selected submenu. · When you press the MENU button twice, the set will switch to the normal user menus (with the SDAM mode still active in the background). To return to the SDAM menu press the OSD / STATUS button. · When you press the MENU key in a submenu, you will return to the previous menu. How to Store Settings To store settings, leave the SDAM mode with the Standby button on the remote. How to Exit Switch the set to STANDBY by pressing the power button on the remote control (if you switch the set 'off' by removing the AC power, the set will return in SDAM when AC power is reapplied). The error buffer is not cleared.
5.3
5.3.1
Problems and Solving Tips
Picture Problems Note: Below described problems are all related to the TV settings. The procedures to change the value (or status) of the different settings are described. No Colors / Noise in Picture 1. Press the MENU button on the remote control. 2. Select the INSTALLATION sub menu. 3. Select and change the SYSTEM setting until picture and sound are correct. 4. Select the STORE menu item.
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.
EN 10
5.
L03.2U AA
Service Modes, Error Codes, and Fault Finding
· · · · · ComPair Interface Box: 4822 727 21631. AC Adapter: T405-ND. ComPair Quick Start Guide: ST4190. ComPair interface extension cable: 3139 131 03791. ComPair UART interface cable: 3122 785 90630.
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. 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. Caution: It is compulsory to connect the TV to the PC as shown in the picture below (with the ComPair interface in between), as the ComPair interface acts as a level shifter. If one connects the TV directly to the PC (via UART), ICs will be blown!
TO UART SERVICE CONNECTOR TO I2C SERVICE CONNECTOR
Note: If you encounter any problems, contact your local support desk.
PC
VCR
Power 9V DC
I2C
E_06532_021.eps 180804
Figure 5-2 ComPair interface connection How to Order ComPair order codes (US): · ComPair Software: ST4191.
Service Modes, Error Codes, and Fault Finding 5.5 Error Codes
In case of non-intermittent faults, clear the error buffer before you begin the repair. These to ensure 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 code and not the actual cause (e.g., a fault in the protection detection circuitry can also lead to a protection). Table 5-3 Error Code Table ERROR Device 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Not applicable Not applicable Not applicable Not applicable TDA9853H TDA93XX I2C bus Not applicable Not applicable M24C16 Tuner Not applicable Not applicable Not applicable Not applicable Error description No Error X-Ray Protection (USA) Horizontal Protection Vertical Protection Tone control & Audio processor I2C identification error POR 3.3V / 8V Protection General I2C bus error E/W Protection (Large Screen) NVM I2C identification error Tuner I2C identification error Black current loop protection MAP I2C identification error (USA) VC I2C identification error (Eu) DVD I2C identification error Check item -
L03.2U AA
5.
EN 11
Diagram A2 A2 A2 A5 A4, A1 A4 A4 A3
7421, 2423, 6421, 6422 7421, 7422, 7423 7461, 7462, 7463, 7464, 7465, 7466 7861 (Stereo/Sap) 7200, 7541, 7491, 7493, 7496 7200, 3604, 3605 7641, 3641, 3642, 3643 1000, 3003, 3004
3313, 7307, 7308, 7309, 7310, 7311, 7312, 7313, B1 7314, 7315, 7316, 7317, 7318, CRT · Set is non-stop in hiccup mode. Set is in over current mode; check the secondary sensing (opto coupler 7515) and the "Main Supply" voltage. Signal "Stdby_con" must be logic low under normal operation conditions and goes to high (3.3 V) under standby and fault conditions. Set turns on, but without picture and sound. The screen shows snow, but OSD and other menus are okay. Blinking LED procedure indicates error 11, so problem is expected in the tuner (pos. 1000). Check presence of supply voltages. As "Vlotaux+5V" at pin 5 and 7 are okay, "VT_supply" at pin 9 is missing. Conclusion: resistor 3449 & 3450 are defective
5.6
Protections
If a fault situation is detected an error code will be generated and if necessary the set will be put in the protection mode. Blinking of the red LED at a frequency of 3 Hz indicates the protection mode. In some error cases, the microprocessor does not put the set in the protection mode. The error codes of the error buffer can be read via the service menu (SDAM) or via ComPair. To get a quick diagnosis the chassis has one service modes implemented: · The Service Default Alignment Mode (SDAM). Start-up of the set in a predefined way and adjustment of the set via a menu and with the help of test patterns.
·
5.7
Repair Tips
Below some failure symptoms are given, followed by a repair tip. · Set is dead and makes hiccupping sound. "Main Supply" is available. Hiccupping stops when de-soldering L5563, meaning that problem is in the "Main Supply" line. No output voltages at LOT, no horizontal deflection. Reason: line transistor 7421 is defective. · Set is dead, and makes no sound. Check power supply IC 7520. Result: voltage at pins 2, 6, 7, 9 and 11 are about 180 V and pin 14 is 0 V. The reason why the voltage on these pins is so high is because the output driver (pin 11) has an open load. That is why MOSFET 7521 is not able to switch. Reason: feedback resistor 3523 is defective. Caution: be careful measuring on the gate of 7521; circuitry is very high ohmic and can easily be damaged! · Set is in hiccup mode and shuts down after 8 s. Blinking LED (set in SDM mode) indicates error 5. As it is unlikely that the "POR" and "+8V protection" happen at the same time, measure the "+8V". If this voltage is missing, check transistor 7491 & 7496.
EN 12
5.
L03.2U AA
Service Modes, Error Codes, and Fault Finding
Personal Notes:
E_06532_012.eps 131004
Block Diagrams, Test Point Overviews, and Waveforms
L03.2U AA
6.
EN 13
6. Block Diagrams, Test Point Overviews, and Waveforms
Block Diagram
A7
V FRONT I/O STEREO SY_CVBS_IN V 7861 TDA9853H
A5
AUDIO PROCESSING (BTSC STEREO DECODER)
A6 AUDIO AMPLIFIER
7901 AN7522N (STEREO) 7902 AN7523N (MONO) 1 5 3901 +5V A8 6 8 9 1 2 A9 2906 4 A10 10 A11 12 FILAMENT R+ 2 R1 R L5 1900 L+ 4 L Vaudio
A7
FRONT CONTROL
A4 CONTROL
+3.3V 7641 M24C04 WP +3V3 EEPROM 8 (NVM) 7 6 ERR 5 9 3601 SDA SCL V7 SCL V8 VST PWMDAC ROM RAM 1/10 PAGES MEMORY TELE TEXT/CC + OSD 4 VOLUME A6 SDAM 9625 3643 3642 SDA
MONO
6692 TSOP1836 1
5601 5603 5602 7200-B TDA93XX 54 61 56 F1 IR IR 62 11
+3.3V
L1_IN
L1_IN
A5 8 INPUT SELECT 1 18 A4
Main_OutL Main_OutR
Main_OutL Main_OutR
A6 A7
2904
L
L
A8
R1_IN R R1_IN 26
IIC BUS KEYBOARD LOCAL KEYBOARD CHANNEL + / VOLUME + / POWER (USA only) 8 I/O PORTS
3602 3 2 3605 3604
VOLUME A4 6909 3911
A3 A5
A3 A1 4 38 BTSC STEREO + DECODER 18 A2 ERR 4
3865 3866
SDA SCL L+ LRR+
A7
L+ LRR+
HEADPHONE
1
Std_Con A1
SPEAKER 2 X 5W 16 Ohm 2 X 3W 8 Ohm 2 X 1W 8 Ohm
CVBS SYNC 57 CPU 58 1621 12MHz
A3 TUNER IF
VT_SUPPLY VT_SUPPLY_A A2 6001 BZX79-C33 +5V 1000 UV1336 6, 7 2
A4 IF, VIDEO PROCESSING
B1 CRT
+170V0
AM_FM_MONO +8VD 7200-A TDA93XX VIF_1 VIF_2 23 24 27 VIDEO IF AGC VIDEO PLL DEMOD. VIDEO AMPLIFIER 38 7201 3205 SOUND FM-DEMOD. DE-EMPH. SOUND AMPL. + AVL
V1
V12
7308 7313 7314 R
3313
9 VT
T1
1001
AUDIO CARRIER FILTER 5201 1201
4.5MHz
7200-C TDA93XX OSD 40 I/O SWITCHING RGB MATRIX RGB INSERT BLACK STRETCH WHITE STRETCH 46 47 48 45 R G B RGB CONTROL OSD/TEXT/CC INSERT BLUE STRETCH WHITE-P. ADJ 50 FRAME_OUT 51 52 53 49
3624
TV TUNER
ERR 10
IF
11
3619 3620 3621
V9
RED
V10
1622 1 2 3
1300 1 2 3
7310 7315 7316
V13
3301
V15
0165
R G
AQUADAG
G
3305
V16
7 9 3
4
R G B
GREEN
V11
5
3003
4
AGC 1 TUNER_AGC
3004
AUDIO SWITCH 35
44
Y-DELAY +8V N.C. 43 42 7202 SY_CVBS_IN VIDEO IDENT VIDEO FILTERS PAL/NTSC DECODER R-Y B-Y BASE BAND DELAY
Y
BLUE
V14
7312 7317 7318 B
3309
V17
B
CRT (9P)
6 8
5
3319
A4 SDA A4 SCL
1003 1 SDA ComPair CONN. 2 SCL 3
U V
BEAM-LIMIT A2 BLK_IN
4 5
4 5 VG2 6 3318 +170V0 FILAMENT 6318 FOCUS 25kV EHT
A5 L1_IN A7
(MONO) 3203
R_SC1_IN_V_IN G_SC1_IN_Y_IN B_SC1_IN_U_IN FBL_SC1_IN
A2
7 8
N.C.
A1 POWER SUPPLY
1512 Degaussing Coil
t
A4 SYNC.
3
3503
A2 DEFLECTION
Hflybk
4 1
1515
7580 ENERGIZING CIRCUIT (optional)
RESERVED
LINE
5441 3424 1 D3 7 VG2 2
D2
7200-D TDA93XX -12V VIDEO INTERNAL
34
-12V
EHT
EHT FOCUS
2
6422
5421 7423
7421 BUT11APX
90VAC-130VAC low range 1511
7422 5502 1500 6500 T4E 6502 6503 2504 6501
P1
5520 1 2 11 5562 6561
H H/V SYNC SEPERATOR V H-OSC +PLL 6562
H-DRIVE 2nd LOOP H-SHIFT
33
H-DRIVE
V2
2423
FOCUS
2428
D1
VG2 EHT
10 3447 0221 1 3451 2455
3410
A1 A4 A4
1400 1 2 3
3425
Vaudio
EHT 0 6451 6452 BEAMLIMIT
P2
5563 MAIN SUPPLY
3423 6423
MAINSUPPLY
3403
A1 A2
FILAMENT
4 HOR. DEFL. COIL 9 5401 3402 8 6446 3443
D7
3527
3506
P4
7520 TEA1506
DRAIN
14 11 9 3523 3525
P6
7521
D G S
P5
10 3 5 8 5560 6560
P3
2406
6447
3448 3459 3445 6448 6444
D8
+160VD +160VD
DRIVER
2
2521
Vaudio
Vcc
SENSE
D9
VT SUPPLY A3 -12V FILAMENT
3526 6520
6 7
3549
3543 V-DRIVE V-DRIVE + 7461 36
D4
FRAME
22
7464 5
7523 3522
3581
D10
6 3528
CTRL
DEMAG
7
V-DRVE + GEOMETRY 7540, 6540
6522
EHT0
3444 3446 6463
2465
FILAMENT A6
A2
21
3463 7462
7466 3470 7465 7463 4
6461
2460
CONTROL IC
REFERENCE CIRCUIT 1 7515 TCET1103 2 7541 STANDBY CIRCUIT Std_Con +3V3A 3544 7451 EHT
A2
6462
4
A2
3
EW + GEOMETRY
20 2490
D5
3465 3464 -12V 3474
1402 1 2 VERT. DEFL. COIL
3475 FRAME OUT A4
A4
HOT GROUND
COLD GROUND
E_14560_017.eps 240304
Block Diagrams, Test Point Overviews, and Waveforms
L03.2U AA
6.
EN 14
I2C and Supply Voltage Overview
A1 POWER SUPPLY
1512 Degaussing Coil t 3 3503 2 1 4 1515 7580 ENERGIZING CIRCUIT (optional) RESERVED -12V -12V 3424 6422 2423 1 7 VG2 2 1400 FOCUS 6500 T4E 6502 6503 2504 6501 1 2 11 3527 3506 7520 TEA1506 14 DRAIN 11 DRIVER 2 2521 6520 7523 3522 3581 7540, 6540 6522 4 1 7515 TCET1103 3 2 +3V3A 7541 STANDBY CIRCUIT HOT GROUND COLD GROUND Std_Con A4 -12V REFERENCE CIRCUIT 3544 7451 EHT A2 +3V3A 3465 3464 3474 V-DRIVE+ 7463 1402 1 2 VERT. DEFL. COIL 2465 3475 FRAME OUT A4 7461 Vcc SENSE 9 7521 3523 3525 3526 D G S 5 6 7 3549 3543 V-DRIVE6 3528 CONTROL IC CTRL DEMAG 7 3463 7462 7465 7466 3470 4 3 8 5560 6560 Vaudio 1x 2x FILAMENT 10 3423 6423 5401 3402 8 FRAME 7464 5 6446 3443 3444 3446 6463 3445 -12V 6448 6444 6461 2460 6462 FILAMENT A6 FILAMENT 2x -12V 3x 2406 5562 6561 5520 Vaudio 6562 5563 MAINSUPPLY MAINSUPPLY 3403 3425 0221 1 4 HOR. DEFL. COIL 9 2428 10 3447 3451 2455 3410 EHT 0 6451 6452 BEAM- A4 LIMIT A4 FILAMENT VG2 EHT A1 +160VD 2 3 1300 7 8 3313 VG2 170 V0 To VIDEO OUTPUTS FILAMENT
A2 DEFLECTION
5441 EHT EHT FOCUS -12V
B1
CRT
EHT
FOCUS
5421 7423 90VAC-130VAC low range 1511 5502 1500 H-DRIVE 7422
7421 BUT11APX
6447
3448 +160VD 3459 VT SUPPLY A3 VT SUPPLY 1x
I2C BUS INTERCONNECTION DIAGRAM
B1 A4
VIDEO PROCESSING Vaudio
A3
+5V 3494
TUNER IF +5V
A4 VIDEO PROCESSING
+3.3V +3.3V
ERR 6
A3
3602 3601
TUNER IF
A5 AUDIO BTSC STEREO
DECODER (economic) 1 Vaudio
7493 3
VT supply +3V3 6001 -/C33 4491 6491 VT Supply-A A1 In A2 +3V3A 2x 1x VT supply
7200-B
3
SDA
3605
SDA SCL 3003 3643 3642
SDA SCL 3004 3865 3866
SET PROCESSOR PART OF VIDEOPROCESSOR TDA93XX
2
SCL
3604
+3.3V
5 3644 11 WP
7641
6
5 4 1000
38
40
7861
A5
+ 8V
AUDIO PROCESSING 5861 41 - 7861
M24C04 7 EEPROM (NVM)
ERR 9
TUNER UV1336
ERR 10
TDA9853H AUDIO PROC.
ERR 4
FILAMENT
7494
3495 +5V
1x 1x
A6
Vaudio
AUDIO AMPLIFIER 1 - 7901 or 1 - 7902 + 5V
3496
ERROR CODE LIST
Error 0 1 2 3 4 5 6 7 8 9 10 Device Not applicable Not applicable Not applicable Not applicable TDA9853H TDA93XX I2C bus Not applicable Not applicable M24C16 Tuner Error description No Error X-Ray Protection (USA) Horizontal Protection Vertical Protection Tone control & Audio processor I2C identification error POR 3.3V / 8V Protection General I2C bus error E/W Protection (Large Screen) NVM I2C identification error Tuner I2C identification error Check item 7421, 2423, 6421, 6422 7421, 7422, 7423 7461, 7462, 7463, 7464, 7465, 7466 7861 (Stereo/Sap) 7200, 7541, 7491, 7493, 7496 7200, 3604, 3605 7641, 3641, 3642, 3643 1000, 3003, 3004 3313, 7307, 7308, 7309, 7310, 7311, 7312, 7313, 7314, 7315, 7316, 7317, 7318, CRT Diagram A2 A2 A2 A5 A4, A1 A4 A4 A3
1003 1 2
3497 + 5V 6492 +8V 4379 7496 3493 7491 +8V 1x
FOR COMPAIR ONLY
3
FILAMENT FILAMENT
A7
AUDIO FRONT I/O +3V3A
+ 3V3A
5482 +8VD
VTSupply-A B1 -
3491 3492
11 12 13 14
Not applicable Not applicable Not applicable Not applicable
Black current loop protection MAP I2C identification error (USA) VC I2C identification error (Eu) DVD I2C identification error
E_14560_020.eps 240304
Block Diagrams, Test Point Overviews, and Waveforms
L03.2U AA
6.
EN 15
Testpoint Overview Mono Carrier and CRT Panel
MONO CARRIER TRACK SIDE VIEW CRT TRACK SIDE VIEW
7521
S D G P6
7520
6461
V16 D9 V15
2
P4
3
8 7
9
10 11 3
V17
LOT
2
6
8
D1
5441
9
5 4
1302
1
P1
6
1
10 6447
1300
D8
8
3 2 1
V14 V13
T et CR ock S
6692 3 1
5520
F1 P3
6560
11
7 V12
V12
V13
6561
HOT COLD
P2
1V / div DC 20µs / div. V14 7421 1V / div DC 20µs / div. V15
D2 V8
3643 3642
B C E
1V / div DC 20µs / div. V16 50V / div DC 20µs / div. V17
D3 V7
AUDIO PROC.
34
7861
3601
3602
1000 3 D10 2 1
V2
33
1
50V / div DC 20µs / div. 23 18 1622 5 4 3 2 1 7463
50V / div DC 20µs / div.
A5
1 12
A4 V11 V10 V9
E B C
D6
7200
7464
B C
E
D7
VIDEO PROC.
21 22
V2
V7
V8
D5 D4
0,5V / div DC 20µs / div. 1 0.5V / div DC 20µs / div. V10 0,5V / div DC 20µs / div. V11
1000 11 64 32
TUNER
T1
V9
1V / div DC 20µs / div. D2 D1 97V DC D3 D4 D5 D6 D7 D8 D9 D10 F1 P1
1V / div DC 20µs / div.
1V / div DC 20µs / div. P5 P6 T1
A4
A5
P2 97V DC P3 13V5 DC P4 17V8 DC 5V / div AC 20µs / div. 100V / div DC 20µs/div. 0.5V / div DC 5ms / div. 0.5V / div DC 5ms / div. 1V / div AC 5ms / div. 20V / div DC 5ms / div. 50V / div DC 20µs / div. 10V / div DC 20µs / div. 2V / div DC 20µs / div. 1V / div AC 2ms / div. 50V / div DC 5µs / div. 100V / div DC 5µs / div. 2V / div DC 5µs / div. 200mV / div AC 20µs / div. E_14560_019.eps 180304
0.5V / div DC 1ms / div.
0.5V / div DC 1ms / div.
Circuit Diagrams and PWB Layouts
L03.2U AA
7.
EN 16
7. Circuit Diagrams and PWB Layouts
Mono Carrier: Power Supply 1 2
3 4 5 6 7 8 9 10 11
A1
A
POWER SUPPLY
RES
For Relay Cct.
-12V Item 2523 2562 5520 6520 6522 7580 -12V4 13V/19V 1N8 2N2 SS28011-04 BYV95A BYV95A 14RF 1N5 1N5 SS28032-02A RGP15D RGP15D
A1
*
F524 9503 1515 G5P
A
+t 10R - PTC
3503
*
6500 6501 1N5062 (COL) 6503 150u 400V 1N5062 (COL) 2504 F510
DEGAUSSING COIL
1512 1
*
F501 2505 2n2 F502
2
BC847B
*
*
F525 -12V0 47u 2580
0V0 P1
B
2
1N5062 (COL) 6502 1N5062 (COL)
*
1500 PFC5000 1501 PFC5000
*
3508
"$"
*
B
P1 P5 P6 P2 97V DC P3 13V5 DC P4 17V8 DC
1M5 2502 2n2 9502 RES
*
2515 F514
1511 2 1
3502 F503 6 2500 220n 3505 5502 4
T4E.250V
V
t
1n5
50V / div DC 5µs / div.
100V / div DC 5µs / div.
2V / div DC 5µs / div.
C
MAINS 90VAC-130VAC LOW RANGE
1 C914
3
C
2584 1 130V0 220p 2 3 F509 5521
F506
3M3
3500
*
5520 5562 11 10 P3 6562 BYW76 6561 2564 P2 F540 5563 27u 3582 MainSupply
L_GND 3501
6505
3M3
BZX384-C22 9505 3507 33K 7520 TEA1506 16V2 2 12V6 22u
Vcc SUPPLY MANAGEMENT
*
F542 2m2 16V 2561
2562 2n2
2522
1520
330K
START-UP CURRENT SOURCE VALLEY VOLTAGE CONTRLLED OSCILLATOR Drain
P5 3527 2K2 112V6
6
7
2n2 14 114V3 9509 5509
AudioSupplyGnd_A
AudioSupplyGnd_A
2521
P4
3
Gnd
8 10
START-UP Demag
STP5NK50ZFP
7521 3522 4501 3524 RES 2524 330K 3525 1K0 3526 4V7 G D S 0V0 2523 1n8
*
FREQUENCY CONTROL
CURRENT SOURCE OVER TEMPERATURE PROTECTIOM LOGIC CONTROL CIRCUIT CURRENT SENSING Driver Sense
7 0V0 9 0V0
AudioSupplyGnd_A
AudioSupplyGnd
220R
3549
F541
DSP
470p
D
3510 3506
5
8
5560
6560 SB340 2560
330K
47u
*
1521
Vaudio
D
E
* 6520
BYV95A 2526
INPUT CONTROL CIRCUIT BURST DETECTOR
E
BZX79-C9V1
6541
1n0
POWER-ON RESET
OUTPUT DRIVER
11 4V7
RES
3523
1V2 6
Ctrl
2525
470p
RES
7523 BC857B 5V2
BZX79-B6V8
3V8
MAXIMUM ON-TIME PROTECTION
OVER POWER PROTECTION
0R15
6V3 6V9 2452 82n 3452 820K 3454 9V1 100K 3453 2453 4n7 3456 47K
3521
RES
F
3528 10K
2527 0V0 56p
3581 56R
*
6522
7515 TCET1103(G) 16V5 4
6540
3548
6K8 3547
1 9V1
7540 7V4 BC547B 2540 15n
15K 3544
82K
1K5
P6
*
7451 BC857B 8V8
F
EHT A2
BYV95A 2543 1n0 3 4V6 2542 22u 50V 470n 2528 2 8V0 3541 470R 3545 2K2 8V1 7541 PDTC114ET 3V3 2541
F444
3519 3K3 3520 1K2 2520 10n
10K +3V3A 10n
G
FOR MAINS 120V AC 170V (177V) 220V AC 309V (317V) ..V.. Normal Operation in " SERVICE MODE (..V..) Standy Mode
"$"
HOT
COLD
3V3
Std_Con A4
G
HOT GROUND COLD GROUND
"
MULTIPLE BOARD 11 NC : 3139_123_5801 SINGLE BOARD 11 NC : 3139_123_5802 2 3 4 5 6 7 8 9 10
3139 123 5802.3
G_14561_001.eps 110506
1500 B2 1501 B3 1511 C1 1512 B1 1515 A7 1520 D1 1521 D9 2452 F11 2453 F10 2500 C3 2501 B5 2502 B5 2504 B6 2505 B2 2507 B6 2515 C7 2520 G2 2521 E2 2522 D6 2523 E6 2524 E5 2525 F5 2526 E2 2527 F1 2528 G6 2540 F9 2541 G9 2542 G7 2543 F6 2560 D8 2561 D9 2562 D9 2564 D10 2580 B7 2584 C6 3452 F11 3453 F10 3454 F9 3456 F11 3500 C2 3501 D2 3502 C4 3503 B4 3505 C3 3506 D4 3507 D2 3508 B4 3509 D3 3510 D3 3519 F6 3520 G2 3521 F2 3522 E5 3523 E5 3524 E5 3525 E5 3526 E6 3527 D5 3528 F1 3541 F8 3542 E9 3543 E10 3544 F9 3545 G8 3547 F9 3548 F9 3549 E9 3580 A7 3581 F6 3582 D10 4501 E5 5502 C4 5509 E8 5520 C7 5521 D6 5560 D8 5562 C9 5563 D10 6500 B5 6501 B5 6502 B5 6503 B5 6505 D2 6520 E1 6522 F6 6540 F8 6541 E9 6560 D8 6561 D9 6562 C9
6580 A8 7451 F10 7515 F7 7520 D2 7521 E6 7523 F1 7540 F9 7541 G8 7580 A7 9502 C4 9503 A6 9505 D2 9509 D8 F444 F10 F501 B2 F502 B2 F503 C2 F506 C2 F509 D6 F510 B6 F514 C6 F524 A4 F525 B8 F540 D10 F541 D10 F542 D9
3
4
2501
2n2
2507
220R
3509
RES
1N4148
3580
47K 6580
1
3542
3543
*
1
11
Circuit Diagrams and PWB Layouts
L03.2U AA
7.
EN 17
Mono Carrier: Deflection 1
2
3
4
5
6
7
Item 3473 3474 2406 2408 2423 2424 2441 2452 2494 3402 3440 3441 3442 3443 3444 3445 3447 3451 3455 3460 5441
8
19V 3R3 3R3 NO 560N 15N15N 1N 33N 100N NO 2K2 33K 47K 150K 3R9 3R9 1R 150K 8K2 2K2 47K JF0501-19276 13V 4R7 4R7 NO 560N 13N 470P 22N 22N NO NO 36K 47K 100K 4R7 3R9 3R9 220K 680R 470R 100K JF0501-19255
9
14RF 3R3 3R3 360N NO 12N 680P 15N 22N 47U 2K2 33K 10K 150K 3R9 4R7 1R 100K 680R 470R 100K JF0501-19255
10
A2
A
A4
DEFLECTION
Line Deflection
Hflybk 3422 330K 6422 0V3 0V0 D2 -12V 3424 22R 2429 2471 220n RES 2420 100n BAS316 2421 100n F425 3426 F426 47R 6426 F428 7421 BUT11APX F427 46V4 BYD33M LOT 10n 2424 2423 820p
A2
A
* *
*
5441 1142
EHT
TO PICTURE TUBE
FOCUS VG2
TO CRT PANEL
2426
1n
B
HDRIVE A4 2427 100n
0V0 3428 7422 BC817-25 3V4 3432 68R HORIZONTAL DEFLECTION 1401 COIL VH
D3 F407 1
8 6
B
VTSupply
0V0
3
5421
6
3449 1 4 F406 F405 7 3 3442 BAS316 3441
120K
3450
9
3421
33K
1K
7423 BC807-25 -7V0 1 PSD10-204B 5
*
3447 100K
33K
3410 68K F443
EHTO EHT A4 A1
10
FILAMENT A2
6423
1R 3423
3430 1K0
5V6
3451
2473
470p 6445
330R 2428 47u
BZX79-C33 3457
6V0
2 4 F404
*
C
*
BAS316 Vaudio 3425
1R
137V0
8K2
7440 BF423 3V5 RES
*
6451 BAS316
2441 33n
140V0 10u 16V 3440
*
3455 2K2
Beam_Limit A4
C
2406
470n
12n
MainSupply
F422
3403
2408
5
1K 2405 47u
*
3402 2K2
*
*
1R 3444
6444 EGP20DL
*
D1
*
3443
MainSupplyGND 3460 100K F446 D9 -12V D10 FILAMENT A4
6448
6452 BAS316
*
D
1R
6446 RGP10D 6447 RGP10D
1R
F448 3448
D
*
*
3445
F449
160VD
DC12 5401
1R 2444 470u 2446 2447 470u 10u D8
3446
2457 1R 470p
Frame Deflection E
FILAMENT A2 3468 330R 100u 50V BAS316 2463 BAS316 3463 2461 2462 6460 D4 VDriveA4 3461 2K2 BAS316 6424 1 0V8 1 7461 BC857B 3462 1M 3 -12V6 3465 1K -12V 3 2 2 1V4 2 2 1 6425 BAS316 0V9 1 -11V9 7462 BC857B 3466 1K D6 2464 470p -12V0 7463 BC546B -12V5 -12V5 0V0 0V0 220R 3472 3478 1R0 7465 BD136 0V0 7466 BC847B 6464 2K2 1n 1n -0V5 7464 BD135 0V0 2465 23V8 160V 6462 RGP10D
6463 RGP10D 2460 56n 6461 RGP10D
F450 1463
1400
1 2 3
DIPMATE
1464
TO 1300 OF CRT PANEL
E
3475 -12V 220R 3470 3471 2R2 15n 0V0 2470 10K 3476 8K2
Frame_OUT A4
F
D2 D1 97V DC
D3
D4
D5
F
D7 1402 F461 F462 Frame_FB VH 1 2
VERTICAL DEFLECTION COIL
D6
5V / div AC 20µs / div. D7
100V / div DC 20µs/div. D8
0.5V / div DC 5ms / div. D9
0.5V / div DC 5ms / div. D10
G
VDrive+ A4 D5
3464 2K2 3473 3474 3R3 3R3
G
1V / div AC 5ms / div. 20V / div DC 5ms / div. 50V / div DC 20µs / div. 10V / div DC 20µs / div. 2V / div DC 20µs / div.
3139 123 5802.3
MULTIPLE BOARD 11 NC : 3139_123_5801 SINGLE BOARD 11 NC : 3139_123_5802 1 2 3 4
G_14561_002.eps 110506
1400 E10 1401 B4 1402 F6 1463 E7 1464 E10 2405 D3 2406 D4 2408 D4 2420 B2 2421 B2 2423 A4 2424 A4 2426 B1 2427 B1 2428 C1 2429 B1 2441 C9 2444 D8 2446 D8 2447 D7 2455 C8 2457 E7 2460 E5 2461 E1 2462 E3 2463 F3 2464 F3 2465 E5 2470 F5 2471 B1 2473 C7 3402 D4 3403 D3 3410 C9 3421 C1 3422 A3 3423 C1 3424 B1 3425 C1 3426 B3 3428 B2 3430 C2 3432 C2 3439 C8 3440 C8 3441 C7 3442 C7 3443 C6 3444 D6 3445 D7 3446 E6 3447 C8 3448 D7 3449 B8 3450 B8 3451 C8 3455 C9 3457 C8 3459 C7 3460 D9 3461 F1 3462 F1 3463 E2 3464 G2 3465 F2 3466 F2 3468 E3 3470 F4 3471 F4 3472 F4 3473 G4 3474 G5 3475 F5 3476 F5 3478 F5 5401 D4 5402 D4 5421 B3 5441 A5 6422 A3 6423 C1 6424 F2 6425 F3 6426 B2 6444 D7 6445 C7 6446 D7 6447 D7 6448 D7
6451 C9 6452 D8 6453 C7 6460 E3 6461 E5 6462 E5 6463 E5 6464 E3 7421 A3 7422 B2 7423 C2 7440 C8 7461 F1 7462 F3 7463 G3 7464 E4 7465 F4 7466 F3 9402 E4 F404 C4 F405 C4 F406 C4 F407 B4 F422 D2 F425 B3 F426 B3 F427 B3 F428 B3 F443 C10 F446 D9 F448 D9 F449 D9 F450 E7 F461 F5 F462 G5
*
150K 6453
3459
33K 3439
120K
2M2
9402 RES
5402
33u
*
*
10u
5
6
7
8
3R3
2455
9
10
Circuit Diagrams and PWB Layouts
L03.2U AA
7.
EN 18
Mono Carrier: Tuner IF
1
2
3
4
5
6
7
8
A3
A
TUNER IF
A3
A
+5V VTSupply F006 5002 5003 RES RES
TUNER_AGC A4 +5V
3005 100R 3001 4K7
F001
F005 VTSupply_A F002
T1
2005
220n
6001
470u 10V
1000 UV1336 2001 3002 2002 100u 22K 10n
BZX79-C33 2007
1 AGC
7 VS
9 VTS
2006
10u
B
B
200mV / div AC 20µs / div.
2 3 4
TU AS SCL SDA 5001 820n 2 T1
1001 OFWG1984M 1 4 VIF_2 A4 5 F004 3 VIF_1 A4
TUNER
IF
11
F003
1000 B4 1001 B6 1003 C2 1004 D5 2001 B2 2002 B3 2003 C3 2004 C4 2005 B5 2006 B2 2007 B6 3001 B2 3002 B2 3003 C3 3004 C3 3005 B2 5001 C6 5002 B5 5003 B5 5004 C5 6001 B6 F001 B3 F002 B3 F003 C5 F004 C6 F005 B6 F006 A5
SDA A4 1 2 3
1003 3004 100R
3003 100R
5
C
A4
GND
2003 22p 2004 10 22p 12 13 14 15 B3B-EH-A
NC
6 8
SCL
C
5004
1004 1
D MULTIPLE BOARD 11 NC : 3139_123_5801 SINGLE CHASSIS 11 NC : 3139_123_5802 2 3 4 5 6 7 8
D
3139 123 5802.3
G_14561_003.eps 110506
1
Circuit Diagrams and PWB Layouts
L03.2U AA
7.
EN 19
Mono Carrier: Video Processing 1 2
3
A5 A5/A7
4
5
A3,A5 A3,A5 A6 A7
6
A1 A7
7
8
Vaudio
9
FILAMENT
10
11
1201 B2 1202 D1 1203 E9 1621 B4 1622 D10 2123 B4 2201 A2 2202 A3 2203 A2 2204 A4 2205 B3 2206 B4 2207 C2 2208 C2 2209 C2 2210 D2 2212 D2 2481 F3 2482 F2 2483 F2 2484 F2 2485 F3 2486 F3 2487 F4 2488 F5 2489 F5 2490 F6 2491 F1 2492 B9 2493 A9 2494 B7 2495 A10 2496 G4 2497 G5 2498 F2 2601 B4 2602 B5 2603 B5 2604 A5 2605 B7 2606 B7 2607 B7 2608 B7 2612 D8 2615 E7 2616 E8 2641 B11 2642 B10 2643 F2 3201 A3 3202 A3 3203 A4 3204 B2 3205 B3 3206 B3 3207 C3 3208 C2 3209 D2 3210 D2 3211 D1 3231 F7 3232 F7 3479 B8 3480 F5 3481 F3 3483 F4 3485 G5 3486 G5 3487 G6 3488 G4 3489 G6 3490 G4 3491 A7 3492 B7 3493 B8 3494 A9 3495 A9 3496 A10 3497 A10 3498 G3 3499 G3 3601 A5 3602 A5 3603 A5 3604 B5 3605 B5 3606 A5 3607 B6 3618 B5 3619 D7 3620 D8 3621 E7 3624 E9 3634 C8 3641 A11 3642 C10 3643 B11 3644 A10 3645 C9 3646 F2 4491 A9 4606 A4 4661 D9 5201 B2 5482 E2 5561 F9 5601 B6 5602 B7 5603 B7 5604 F9 6481 G3 6491 B9 6492 A10 6624 E9 6625 D10 6626 D8 6627 D8 6628 D8 6681 E8 7200 C2 7201 B3 7202 A4 7491 A7 7493 B9 7494 A10 7496 A8 7601 D9 7641 B10 9200 A3 9410 G5 9476 A10 F201 A2 F202 E2 F441 F5 F481 G4 F491 A8 F492 A9 F493 A9 F494 A9 F601 B4 F606 E10 F607 E9 F641 B10 F642 B11 F643 C11 F644 C10
+3V3A
+3V3
+3V3
+8V
+5V
Item 2202 2206 3201 3867 4865 5861 3861
MONO 820P 4N7 2K7 NO JUMP NO NO F201
STEREO L1_IN 330P 33P 3K9 3K3 NO FIXD 10U 100K AM_FM_MONO
V3 Std_Con
2K7 2202 2201 820p 4n7
2V7
10V 470u 8V3
3601 2K2 3602
F493
7496 BD135
8V3
F491
V4
V5
V6
6V5 5V6
470u 10V 9476 3496 10R 6492 BZX384-C5V6
3606 10K
10u 16V
9V8 3491 4491 56K
F494
3495
9200
+8VD 2203 100n
3203
1K0
100R
7V0 3V3 7201 BC847B 2V7
3V3 2K2 3618 SDAM 9625 2K2 V1 2602 +3V3 1u 3607 100R 5u6 5u6 5u6 2608
7491 BC847B
9V0
3494 680R
3V3 A1 3493 10R 3479
4V1 A2
33R 2493
3202
470u 10V
4606 RES
F492
7202 BC847B
2K2 3603
5V0 7494 BC337-25
9V6 11V5 220u 25V
7641 M24C04 1 2 NC E1 E2 SCL WC_ 2642
3V4 8 2641 VCC 1n
10R
5201 4u7
3204 75R
3
7493 L78L33 1 3 IN GND OUT 2 6491 3V3 BAV70 22u 25V 2492 3V3 1N
3492
3K3 2494
5601
5602
5603
1 1201 TPS 4M5 I O
2205
B
10u
33p F601 1621 12M 3605
3 6 7 3V3
NVM
SDA
5 3V3
100R
2604
3644
4K7 3641
*
A
3497 390R
*
3201
2204
KEYBOARD
VTSupply_A
VOLUME
SCL
SDA
IR
2495
+8V
+3V3
A4
VIDEO PROCESSING
A4
A
+8V
B
3643 V7 F642 SDA A4 F643 SCL A4 V8
270R
3205
3206
100R
2123
2601
470n
1u0
G 2
2206 4n7
2605 100n 2606 2607 100n 100n 3634 1K0
1K
VSS F641 4
3604
2207 TUNER_AGC A3 2208 100n 100n
3207 390R
100R
*
2603 33p
F644
3V3
1n0 3642 100R
2V9
2V4
2V4
2V3
3V2
3V8
3V3
1V6
1V6
3V4 3V4 0V2 0V2
3V3
3V3
0V8
3V3
3V3
4V2
2V3
7200 TDA93XX 1V8 23 1V8 24
27
37
38
31
29
28
35
44
60
55
59
58
57
10 11
2
3
4
5 6 7 8
1 62 63 64
0V
9
12
54
56
3V3
0V
0V
0V
61
C
A3 A3
100R
VIF_1 VIF_2 3208 470R 3209 470R 2209 220n
C
VISION-IF ALIGNMT-FREE PLL DEMOD AGC/AFC VIDEO AMP DEEMPHASIS AUDIO SWITCH VOL CONTR CPU I2C-BUS VST PWM-DAC I/O PORTS 1/10 PAGE MEMORY 0V4 8V3 3645 BZX79-C8V2 1K0 4661 6625
3v9 40 SY_CVBS_IN 3211 A7 75R 3210 100R 2210 220n VIDEO SWITCH 3V3 42 1V5 43 VIDEO IDENT. VIDEO FILTERS
ROM/RAM
TXT/OSD DISPLAY
ACQUISITION
D
1202 REFO
6626
TELETEXT
220u 16V
AGC CIRCUIT NARROW BAND PLL DEMODULATOR
8V3 BAS316 6627 BAS316 6628 BAS316 2612
7601 PDTA114ET
V9 51 2v8 3619 2212 220n CONTR/BRIGHTN 2V3 13 5v0 32 PAL/SEC/NTSC DECODER BASE-BAND DELAY LINE LUMA DELAY PEAKING BLACK STRETCH OSD/TXT INSERT CCC WHITE-P ADJ F202 0V 30 0V 41 0V 18 8v2 39 8v3 14 5482 10u 470u 10V 2482 1u0 2491 4V0 19 5V0 15 RGB/YUV INSERT RGB/YUV MATRIX SATURATION YUV/RGB/MATRIX 52 2v5 470R 53 2v6 3621 49 3v4 470R 50 5v3 BAS316 6681 10u 16V 3620 470R F607 V11 1203 3624 1K0 6624 BAS316 +5V A2 BLK_IN Frame_OUT A2 Beam_Limit V10 RED 1622 GREEN BLUE F606 1 2 3 4 5
D
To 1300 of CRT PANEL
2615
+8VD
H/V SYNC SEP. H-OSC + PLL
H-DRIVE 2nd LOOP H-SHIFT
V-DRIVE + EW GEOMETRY GEOMETRY
+8V
1V3
2V0
3V8
3V9
3V8
1V3
0V8
3V0
1V0
2V6
2V7
2V7
0V
3481 2643 220p 3646 1M0
17
34
16
33
25
26
22
21
36
20
46
47
48
0V0
45 3232
2498 2u2
2483 4u7
2485
2486
2489
2488
2487
100n
100n
3483
2490
4n7
2n2
4u7
1M
1u
F
2484 100n
3480 39K
18K
2616
1n0
E
E
+8V 1K0
5561 27u
5604 5u6
F
F441 2481 9410 3487 33K 3489 10K 100p 3499 27K BAS316 6481 3498 10K
100R
1n0 3485 1K0
3488
3490
3K3
2496
1n0 2497
3486
1K0
560R
3231
V2
V7
V8
V9
V10
V11
G
Hflybk
F481
G
0.5V / div DC 5ms / div.
A2 VDrive+ VDriveEHTO +8VD +3V3
V2
0.5V / div DC 20µs / div.
0,5V / div DC 20µs / div.
1V / div DC 20µs / div.
1V / div DC 20µs / div.
1V / div DC 20µs / div.
+8V
HDRIVE A2
A2
A2
A2
3139 123 5802.3
MULTIPLE BOARD 11NC : 3139_123_5801 SINGLE BOARD 11NC : 3139_123_5802
G_14561_004.eps 110506
1
2
3
4
5
6
7
8
9
10
11
Circuit Diagrams and PWB Layouts
L03.2U AA
7.
EN 20
Mono Carrier: Audio BTSC Stereo Decoder
1
2
3
4
5
6
7
8
9
A5
A
AUDIO - BTSC STEREO DECODER (ECONOMIC)
A5
A
R1_IN A7
2891 100n 2884 3867 2u2 2865 2876 CSB 514K5 2864 2873 2885 220n 2872 3n3 3K3 2u2 4u7 2u2 2871 150p 4863 RES
B
2u2
B
1861
2861 220n
CP2 4V1 CP1 4V1 CPH 4V1
2870
CMO 4V1 CSS 4V1 LOR 4V1 CAV 6V7
CER 6V6
NC 0V0
VIR 4V1
0V0
2
3
42
43
5
1
6
25
26
12
17
22
29
34
44
23
24
21
TC2R 4V1
TC1R 4V1
BCR 4V1
0V0
0V0
VAR 4V1
LIR 4V
0V0
7861 TDA9853H
47n
19
20
NC
NC
A1
C
AM_FM_MONO A4
2862 2u2 2863
RES
A4
OUTR 18 4V1
4V1 4
COMP
STEREO DECODER
L-R
L+R
3862 15K
4V1 35
FDI
DEMATRIX + MODE SELECT
INPUT SELECT FIL AND REF
AUTOMATIC VOLUME AND LEVEL CONTROL LOGIC I2C TRANSC
0V0 DGND 0V0 MAD 3V3 SDA 3V3 SCL 4V1 VAL
VOLUME RIGHT CTRL VOLUME LEFT CTRL
4V1 TC1L 4V1 VIL
TONE RIGHT CTRL TONE LEFT CTRL
4V1 TC2L 4V1 BCL
Main_OutR A6
C
A5
SUPPLY
8V1 VCAP 4V1 VREF 0V0 AGND
OUTL 16 4V1
4V1 33
3863
FDO
1K2
DET AND VOLTAGE CTRL AMP
8V2 VCC 4V1 BPU 4V1 CW 4V1 TW
Main_OutL A6
100R
3864
32
31
30
41
28
27
36
9
8
7
40
39
38
37
11
10
13
14
15
D
F861
2869 47n
D
4852 RES
100u
100u
1u
10u
1861 B4 1883 E3 2861 B4 2862 C2 2863 C2 2864 B5 2865 B5 2866 D6 2867 D7 2868 D7 2869 D7 2870 C7 2871 B7 2872 B7 2873 B6 2874 D5 2875 D4 2876 B6 2877 D4 2878 D4 2879 D4 2880 D3 2881 D6 2882 D6 2883 E3 2884 B3 2885 B4 2886 E2 2891 B2 3861 D5 3862 C3 3863 D3 3864 D3 3865 F3 3866 E3 3867 B4 4852 D7 4861 E7 4863 B7 4865 E7 5861 E3 5862 F8 7861 C4 F861 D5
0V
4V1 LOL
1V1 RFR
4V1 LIL
2868 150p
2879 4n7
2867 3n3
100K
3861
2880
2882
2881
2866
RES
RES
22n
2877
2878
2875
2874
2u2
A4
A5
5861
+8V
2883
470u
10u
4861 RES 4865
0.5V / div DC 1ms / div. 0.5V / div DC 1ms / div.
E
L1_IN A7
1883 1
E
2886 100n A2 3866 100R A3
SCL A4
5862 10u
SDA A4
3865 100R
F
MULTIPLE BOARD 11NC : 3139_123_5801 SINGLE CHASSIS 11NC : 3139_123_5802
F
3139 123 5802.3
G_14561_005.eps 110506
1
2
3
4
5
6
7
8
9
Circuit Diagrams and PWB Layouts
L03.2U AA
7.
EN 21
Mono Carrier: Audio Ampl & Sound Proc.
1
2
3
4
5
6
7
8
9
10
A6
A
AUDIO AMPLIFIER + MONO SOUND PROCESSING
AmpOutR+ Vaudio 2901 4921 RES RES AmpOutL+
A6
A7 A7 AmpOutL_Pos
A
+5V
4924
3901 AmpOutR_Pos 3902 2903 3K3 1K
A7 A7
STB 3V0
7901 AN7522N
5
VCC 11V4
*
1 A8 2 5V1 CH1+ 4 5V1 CH14927 RES A9 4928 RES AmpOutR_Pos AmpOutR_Neg A10 100p 2949 100p 2950 2947 100p 2948 100p AmpOutL_Neg AmpOutL_Pos F909 A11 F906
A6
4923 RES F901
B
A5
Main_OutL
*
3903 15K 3904 10K
* *
680K 3909
2904 1u 2905 2951 820p 1n
1V4 6 CH1-IN
*
B
1900 5 4 3 2 1
1V4 8 CH2-IN CH2- 10 5V1 0V4 9 VOL GNDCH1 GNDCH2 GNDINP
A7
4925 RES F903 3905 15K 3906
CH2+ 12 5V1
C
Main_OutR A5 FILAMENT
* *
2906 1u 2907 2952 820p 1n
C
3
7
11 STEREO OUTPUT
10u 16V
4922 100K 3911
BZX384-C2V7
7902 AN7523N
5
13V5
3V8
*
1N4148 6909
1 9865 2 5V1 CH1+ 4 5V1 CH19872
1900 B10 2901 A6 2903 B4 2904 B4 2905 B4 2906 C4 2907 C4 2908 C2 2909 D4 2947 C8 2948 C8 2949 C9 2950 C9 2951 B5 2952 C5 3901 A4 3902 B4 3903 B3 3904 B3 3905 C3 3906 C3 3907 D3 3909 B3 3911 C2 4921 A3 4922 C7 4923 B3 4924 A3 4925 C3 4927 B8 4928 C8 6908 D2 6909 D2 7901 B5 7902 D5 9865 D7 9872 D7 F901 B2 F903 C2 F906 B9 F909 B9
2908
1u
6908
STB 1V4 6 CH1-IN
VCC
D
A4 VOLUME
D
0V4 9 VOL
3907
2909
3K3
10u
GNDINP 7
NC 8
GNDCH1 3 MONO OUTPUT
Item 1900 2904 2906 3903 3904 7901 7902
1x1W 3PIN 1U NO 4K7 2K7 NO AN7523
2x1W 5PIN 470N 470N 3K3 10K AN7522 NO
2x3W 5PIN 47N 47N 3K3 10K AN7522 NO
MULTIPLE BOARD 11NC : 3139_123_5801 SINGLE CHASSIS 11NC : 3139_123_5802
E
E
3139 123 5802.3
G_14561_006.eps 110506
1
2
3
4
5
6
7
8
9
10
Circuit Diagrams and PWB Layouts
L03.2U AA
7.
EN 22
Mono Carrier: Front I/O, Control & HP
1
2
3
4
5
6
7
8
9
10
A7
A
FRONT IO / CONTROL + HEADPHONE
A7
FRONT CONTROL
KEYBOARD
FRONT CINCH
MONO SET F181 1181 SY_CVBS_IN BZX79-C6V8 A4
A
F682
3182 100R
A4 200R 3685 120R 430R 4182 3683 3686 3687 3681 2K2 1K0
V
* 1100-A B
3689
200R
3688
3682
RES
* 1101-A
F182 3183 150R 1182 2185 3184 2182 330p 9181 RES 47K L1_IN A5,A4
POWER 1606 TS USA
channel+
1603
channel1602
B
L
F683
volume+
1601
volume1600
* C
1100-B
*
R
1101-B
F183
*3185
150R 2183 330p 3186
R1_IN A5 47K
1183
2186
RES
C
+3V3A
1101-C
F1
3694
1V / div AC 2ms / div.
4K7
D
HEADPHONE
HEADPHONE SOCKET
4981 RES 4982 RES F1 A6 A4 IR F691 9694 F692
D
6692 TSOP1836 3 1 2 2691 100u VS OUT GND
F982
AmpOutL_Pos
E
AmpOutL+ A6
1 6
1901
E
2981 100u
3981 2982 120R
F983 470p 1981
5 4 2
9982 RES
Item 1100 2123 2183 3185 3186 For Engg Purpose Only
F984 AmpOutR_Pos A6 F694 4694 F695
Stereo 3PIN NO 33P 150R 47R
Mono 2PIN 1U NO NO NO
3 7
AmpOutR+
2983 100u 4983 RES 4984 RES
3982 2984 120R
F985 470p 1982
1100-A B1 1100-B B1 1101-A B2 1101-B C2 1101-C C2 1181 B2 1182 B2 1183 C2 1600 B10 1601 B9 1602 B9 1603 B8 1606 B8 1901 E5 1981 E3 1982 F3 2181 B3 2182 B3 2183 C3 2185 B3 2186 C3 2691 E10 2981 E2 2982 E3 2983 F2 2984 F3 3181 B3 3182 A3 3183 B3 3184 B3 3185 C3 3186 C3 3681 B10 3682 B10 3683 B7 3685 B8 3686 B9 3687 B9 3688 B9 3689 B7 3693 D10 3694 D8 3981 E3 3982 F3 4182 B7 4694 F6 4981 E2 4982 E3 4983 F2 4984 F3 6181 B3 6692 D9 9181 B4 9694 E8 9982 F2 F181 A3 F182 B3 F183 C3 F682 A7 F683 B9 F691 E8 F692 E8 F694 F6 F695 F7 F982 D5 F983 E3 F984 F5 F985 F3
3181
2181
6181
75R
22p
*
*
8 9
F
220R
3693
0R
A6
F
MULTIPLE BOARD 11 NC : 3139_123_5801 SINGLE BOARD 11 NC : 3139_123_5802
G_14561_006.eps 110506
3139 123 5802.3
1
2
3
4
5
6
7
8
9
10
Circuit Diagrams and PWB Layouts
L03.2U AA
7.
EN 23
Layout Mono Carrier (Top Side)
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G_14561_008.eps 110506
Circuit Diagrams and PWB Layouts
L03.2U AA
7.
EN 24
Layout Mono Carrier (Overview Bottom Side)
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