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Colour Television
Chassis
L04HE
AA
E_14820_071.eps 231204
Contents
Page
Contents
Page
54 58 58 58 59 59 61
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 9 6. Block Diagrams, Testpoint Overviews, and Waveforms Wiring Diagram 19 Block Diagram Supply and Deflection 20 Testpoint Overview Mono Carrier 21 Block Diagram Video 22 Testpoint Overview CRT Panel 23 Block Diagram Audio & Control 24 I2C and Supply Voltage Overview 25 7. Circuit Diagrams and PWB Layouts Diagram Mono Carrier: Power Supply (A1) 26 Mono Carrier: Diversity Table for A1 27 Mono Carrier: Line & Frame Deflection (A2) 28 Mono Carrier: Diversity Table for A2 29 Mono Carrier: Tuner IF (A3) 30 Mono Carrier: Hercules (A4) 31 Mono Carrier: Features & Connectivities (A5) 32 Mono Carrier: Class D - Audio Amplifier (A6) 33 Mono Carrier: Audio Amplifier (A7) 34 Mono Carrier: Rear I/O Scart (A8) 35 Mono Carrier: Front Control (A9) 36 Mono Carrier: DVD Power Supply (A10) 37 CRT Panel (B1) 44 CRT Panel: Eco Scavem (B2) 45 Side I/O + Headphone Panel (FL-13) (D) 48 Top Control Panel (FL-13) (E) 50 EPS 4 (External Power Supply) (F) 51 Linearity & Panorama Panel (G) 53
8. 9. 10. 11.
Front Interface Panel (FL-13) (J) 54 Interface Module (J1) 55 Interface Module: Diversity Table Part 1 56 Interface Module: Diversity Table Part 2 57 Clock Module (O) 59 Clock Module: Diversity Table 60 Mains Harmonic Module (U) 61 Alignments 63 Circuit Descriptions, List of Abbreviations, and IC Data Sheets 68 Spare Parts List 80 Revision List 84
PWB 38-43 38-43 38-43 38-43 38-43 38-43 38-43 38-43 38-43 38-43 38-43 38-43 46-47 46-47 49 50 52 53
© 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 0567 TV Service
Printed in the Netherlands
Subject to modification
EN 3122 785 14821
EN 2
1.
L04HE 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 Notes: · Described specifications are valid for the whole product range. · Figures below can deviate slightly from the actual situation, due to different set executions. 1.2.1 Side Connections
SIDE I/O
S-Video (optional) Video L Audio R
1.1
1.1.1
Technical Specifications
Vision Display type : : : : : : : : : : : : : : : : DV-CRT-RF DV-CRT-FSQ DV-CRT-SF 25" (63 cm), 4:3 28" (70 cm), 4:3 PLL PAL B/G, B/H, D/K, I SECAM SECAM B/G, D/K, L/L' NTSC M/N 4.43 PAL B/G SECAM L/L' 100 presets UVSH 75 ohm, Coax IEC-type
E_14480_111.eps 060504
Figure 1-1 Side I/O S-Video: Y/C - In (Hosiden) (optional) 1 - Ground Gnd 2 - Ground Gnd 3 -Y 1 V_pp / 75 ohm 4 -C 0.3 V_pp / 75 ohm Audio / Video In Ye - Video (CVBS) Wh - Audio - L Rd - Audio - R Bk - Headphone 1.2.2 Rear Connections
MONITOR OUT EXT. SPEAKER
Screen size Tuning system TV Colour systems
H H j j
Video playback
1 V_pp / 75 ohm 0.5 V_rms / 10 kohm 0.5 V_rms / 10 kohm 8 - 600 Ohm / 4 mW
jq jq jq ot
Channel selections Aerial input
75 Ohm
1.1.2
Sound Sound systems : : : : : FM-mono AM-mono FM-stereo B/G NICAM B/G, D/K, I, L 2x10/ 2x5 W_rms (int.)
ComPair CONNECTOR SMART PLUG
L R
EXTERNAL 2
S-VIDEO
EXTERNAL 1
E_14820_069.eps 231204
Maximum power
Figure 1-2 Rear connections Aerial In - F-type
1.1.3
Miscellaneous Power supply: - Mains voltage - Mains frequency Ambient conditions: - Temperature range - Maximum humidity Power consumption - Normal operation - Standby
Coax, 75 ohm
D
: 220 - 240 V_ac : 50/60 Hz
: +5 to +40 °C : 90 % R.H.
Monitor Out Ye - Video (CVBS) Wh - Audio - L Rd - Audio - R
1 V_pp / 75 ohm 0.5 V_rms / 1 kohm 0.5 V_rms / 1 kohm
kq kq kq
: from 60 W (21") : to 91 W (32") : <1W
1.2
Connections
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, Ye= Yellow.
Technical Specifications, Connections, and Chassis Overview
External 1: RGB/YUV - In and CVBS - In/Out
20 2
L04HE AA
1.
EN 3
External 2: CVBS- In and SVHS - In
20 2
21
E_06532_001.eps 050404
1
21
E_06532_001.eps 050404
1
Figure 1-3 SCART connector 1 2 3 4 5 6 7 8 - Audio - R - Audio - R - Audio - L - Audio - gnd - Blue - gnd - Audio - L - Blue/U - in - CVBS - status 0.5 V_rms / 1 kohm 0.5 V_rms / 10 kohm 0.5 V_rms / 1 kohm Ground Ground 0.5 V_rms / 10 kohm 0.7 V_pp / 75 ohm 0 - 2 V: INT 4.5 - 7 V: EXT 16:9 9.5 - 12 V: EXT 4:3 Ground 0.7 V_pp / 75 ohm Ground Ground 0.7 V_pp / 75 ohm 0 - 0.4 V: INT 1 - 3 V: EXT / 75 ohm Ground Ground 1 V_pp / 75 ohm 1 V_pp / 75 ohm Ground k j k H H j j 1 2 3 4 5 6 7 8
Figure 1-4 SCART connector - Audio - R - Audio - R - Audio - L - Audio - gnd - Blue - gnd - Audio - L - n.c. - CVBS - status 0.5 V_rms / 1 kohm 0.5 V_rms / 10 kohm 0.5 V_rms / 1 kohm Ground Ground 0.5 V_rms / 10 kohm 0 - 2 V: INT 4.5 - 7 V: EXT 16:9 9.5 - 12 V: EXT 4:3 Ground k j k H H j
9 10 11 12 13 14 15 16 17 18 19 20 21
- Green - gnd - n.c. - Green/Y - in - n.c. - Red - gnd - FBL - gnd - Red/V - in - Status/FBL - Video - Video - CVBS - out - CVBS - in - Shielding
H j H H j j H H k j H
9 10 11 12 13 14 15 16 17 18 19 20 21
- Green - gnd - n.c. - n.c. - n.c. - Red - gnd - FBL - gnd - YC-C - in - n.c. - Video - Video - CVBS - out - Y/CVBS - in - Shielding
H
Ground Ground 0.7 V_pp / 75 ohm Ground Ground 1 V_pp / 75 ohm 1 V_pp / 75 ohm Ground
H H j H H k j H
1.3
Chassis Overview
B1 B2 D
CRT ECO SCAVEM CRT PANEL TOP CONTROL PANEL
E J
SIDE AV PANEL + HEADPHONE
FRONT INTERFACE PANEL
J1
INTERFACE SMARD CARD
POWER SUPPLY LINE DEFLECTION
A1 A2 A3 A4 A5 A6 A7 A8 A9 A10
E_14820_070.eps 210705
I
UIR/LS (UNIVERSAL INFRARED RECEIVER + SMARD PLUG LOADER +LOUDSPEAKER SOCKET )
TUNER IF HERCULES FEATURES & CONNECTIVITIES CLASS D AUDIO AMPLIFIER MONO CARRIER AUDIO AMPLIFIER REAR I/O CINCH FRONT CONTROL DVD POWER SUPPLY
G
LINEARITY & PANORAMA PANEL
Figure 1-5 PWB location
EN 4
2.
L04HE AA
Safety Instructions, Warnings, and Notes
2. Safety Instructions, Warnings, and Notes
Index of this chapter: 2.1 Safety Instructions 2.2 Warnings 2.3 Notes components and tools also at this potential. Available ESD protection equipment: Complete kit ESD3 (small tablemat, wristband, connection box, extension cable and ground cable) 4822 310 10671. Wristband tester 4822 344 13999. Together with the deflection unit and any multi-pole unit, flat square picture tubes form an integrated unit. The deflection and the multi-pole units are set optimally at the factory. We do not recommend adjusting this unit during repair. Be careful during measurements in the high voltage section and on the picture tube. Never replace modules or other components while the unit is '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.
2.1
Safety Instructions
Safety regulations require that during a repair: · Connect the set to the Mains 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 lead for external damage. · Check the strain relief of the Mains cord for proper function. · Check the electrical DC resistance between the Mains plug and the secondary side (only for sets which have a Mains isolated power supply): 1. Unplug the Mains cord and connect a wire between the two pins of the Mains plug. 2. Set the Mains switch to the "on" position (keep the Mains cord unplugged!). 3. Measure the resistance value between the pins of the Mains 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 plug. · Check the cabinet for defects, to avoid touching of any inner parts by the customer.
·
· · ·
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 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 standby (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. Manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic" and the "double-D symbol", are trademarks of Dolby Laboratories.
·
·
2.2
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 Fig. 2-1, to discharge the picture tube. Use a high voltage probe and a multi-meter (position V_dc). Discharge until the meter reading is 0 V (after approx. 30 s).
·
E_06532_006.eps 240604
Figure 2-2 Dolby PL Symbol 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 Electrical Replacement Parts List. Therefore, always check this list when there is any doubt.
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
Safety Instructions, Warnings, and Notes
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, it is essential when removing an (LF)BGA, 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 chance 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 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. To reflow the solder, apply a temperature profile according to the IC data sheet. 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 going to produce lead-free sets (PBF) from 1.1.2005 onwards. Lead-free sets will be indicated by the PHILIPS-lead-free logo on the Printed Wiring Boards (PWB):
L04HE AA
2.
EN 5
In case of doubt wether 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 repairhelpdesk. 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 at least a solder-tip temperature of 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 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 rise 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 not to avoid, clean carefully 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 short 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. 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 - 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.
P
b
·
Figure 2-3 Lead-free logo This sign normally has a diameter of 6 mm, but if there is less space on a board also 3 mm is possible.
EN 6
3.
L04HE AA
Directions for Use
3. Directions for Use
You can download this information from the following website: http://www.philips.com/support
Mechanical Instructions
L04HE AA
4.
EN 7
4. Mechanical Instructions
Index of this chapter: 4.1 Set Disassembly 4.2 Service Position 4.3 Assies/Panels Removal 4.4 Set Re-assembly Note: Figures below can deviate slightly from the actual situation, due to different set executions. 1. Disconnect the degaussing coil [1]. 2. Release the two fixation clamps (at the mid left and mid right side of the bracket), and remove the bracket from the bottom tray, by pulling it backwards [2]. 3. Turn the chassis tray 90 degrees counter clockwise. 4. Move the panel bracket somewhat to the left and flip it 90 degrees [3], with the components towards the CRT. 5. Turn the panel bracket with the rear I/O toward the CRT. 6. Place the hook of the tray in the fixation hole of the cabinet bottom [4] and secure it.
4.1
Set Disassembly
Warning: Be sure to disconnect the Mains from the set before opening it.
4.3
4.3.1
Assies/Panels Removal
Front Interface Assy/Panel Removal
4.1.1
Rear Cover 1. Remove all fixation screws of the rear cover (do not forget the screws that hold the rear connection panel). 2. Pull the rear cover backwards to remove it.
4.2
Service Position
1
Before placing the Mono Carrier in its service position, remove the Front Interface assy/panel (see paragraph "Front Interface Assy/Panel removal"), the Side AV assy/panel (see paragraph "Side AV Assy/Panel removal") and the PIP assy/panel (if exists) (see paragraph "PIP Assy/Panel removal").
1 2
3 3
E_14480_049.eps 110204
Figure 4-2 Front interface assy/panel removal 1. Remove the complete module from the bottom plate, by pulling the two fixation clamps upward [1], while sliding the module away from the CRT [2]. Note: these clamps are difficult to access. 2. Release the two fixation clamps [3] at the side of the bracket, and lift the panel out of the bracket (it hinges at one side). 4.3.2 Side AV Assy/Panel Removal
1
2
A
3
E_14480_050.eps 170204
4
Figure 4-3 Side AV assy/panel removal
B
E_14480_048.eps 110204
Figure 4-1 Service position Mono Carrier
1. Remove the two fixation screws, and remove the complete Side AV assembly. 2. Release the two fixation clamps, and lift the panel out of the bracket.
EN 8
4.3.3
4.
L04HE AA
Mechanical Instructions
4.3.7 PIP Assy/Panel Removal 1. Release the two fixation clamps to lift the panel out of the bracket.
LTI/CTI Interface Panel Removal Remove the LTI/CTI Interface panel from the Mono Carrier, by disconnecting it from connector 1212.
4.3.4
Top Control Assy/Panel Removal Notes: · PV02 styling: assy is mounted in the front cabinet; · FL13B styling: assy is mounted in the rear cover. 1. Remove the two fixation screws. 2. Push the assy a little bit upwards, and then pull it backwards to release it from the front hinge. 3. Lift the panel from its bracket, while releasing the four fixation clamps.
4.4
Set Re-assembly
To re-assemble the whole set, do all processes in reverse order. Note: before you mount the rear cover, perform the following checks: 1. Check whether the Mains cord is mounted correctly in its guiding brackets. 2. Check whether all cables are replaced in their original position
4.3.5
Linearity Assy/Panel Removal
2
1 1
E_14480_051.eps 270204
Figure 4-4 Linearity assy/panel removal 1. Release the two fixation clamps [1] to lift the panel out of the bracket [2]. 4.3.6 Interface Module Removal
2
1
E_14820_041.eps 210904
Figure 4-5 Interface module removal 1. Unscrew the fixation srew [1]. 2. Lift the fixation clamp [2] to release the bracket.
Service Modes, Error Codes, and Fault Finding
L04HE AA
5.
EN 9
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 ComPair 5.5 Error Codes 5.6 The Blinking LED Procedure 5.7 Protections 5.8 Fault Finding and Repair Tips (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-favourite 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.
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 "Test Point Overview" as "half moons" with a dot in the center.
· · · · ·
Table 5-1 Test point overview
Test point Circuit Diagr. A1 A2
How to Enter SDAM Use one of the following methods: · Use a System 7 remote control type T374AH (RCtransmitter RG4172BK) and key in the code `062596' directly followed by the `M' (menu) button or · Short circuit jumper wires 9252 and 9275 on the mono carrier (see Fig. 8-1) and apply Mains. Then press the power button (remove the short circuit after start-up). Caution: Entering SDAM by short circuiting wires 9252 and 9275 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 lead to damaging the set. After activating SDAM, the following screen is visible, with S at the upper right side for recognition.
F508, F535, F536, F537, F552, F561, F563, F573, F664, Power supply I513, I518, I519, I524, I531, I533, I546 F401, F412, F413, F414, F418, F452, F453, F455, F456, Line & Frame F458, F459, F460, F461, I408, I416, I417, I420, I462, Deflection I468 F003, F004, I001, I002 F201, F203, F205, F206 F240, F241, F242 F952, F955, I951, I952 F692 F361, F362, F381, F382 Tuner IF Hercules Features & Connectivities Audio Amplifier Front Control ECO Scavem
A3 A4 A5 A7 A9 B1 B2
F331, F332, F333, F338, F339, F341, F351, F353, F354 CRT Panel
Perform measurements under the following conditions: · Television set in Service Default Alignment Mode. · Video input: Color bar signal. · Audio input: 3 kHz left channel, 1 kHz right channel.
L L L L A A E R R X X X OP X X X O P T I O N S DEFLECTION T U N E R A K B W H I T E T O G E O M E T R Y
A A B C X . Y X X X X X X X X X X X X X X X X > > >
S X X X X X X X X X
0 / 1 N E > >
5.2
Service Modes
Service Default Alignment Mode (SDAM) offers several features for the service technician, while the Customer Service Mode (CSM) is used for communication between dealer and customer.
E_14820_039.eps 011204
Figure 5-1 SDAM Menu 1. LLLL This is the operation hours counter. It counts the normal operation hours, not the standby hours. 2. AAAABC-X.Y This is the software identification of the main micro controller: A = the project name (L04H). B = the region: E= Europe, A= Asia Pacific, U= NAFTA, L= LATAM. C = the feature and language X = the main software version number. Y = the sub software version number. 3. S Indication of the actual mode. S= SDAM= Service Default Alignment mode. 4. Error buffer Five errors possible. 5. Option bytes Seven codes possible. 6. 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
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 when leaving SDAM with "standby" key on remote control. · To override SW protections. · To perform alignments. · To start the blinking LED procedure. Specifications · Tuning frequency: 475.25 MHz · Colour system: PAL · 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, like:
EN 10
5.
L04HE AA
Service Modes, Error Codes, and Fault Finding
CSM Menu
7. ISP Mode Can be used to switch on the television to ISP mode (for uploading software 8. Options To set the Option Bytes. See chapter 8.3.1 for a detailed description. 9. Tuner To align the Tuner. See chapter 8.3.3 for a detailed description. 10. White Tone To align the White Tone. See chapter 8.3.4 for a detailed description. 11. Geometry To align the Geometry. See chapter 8.3.5 for a detailed description. How to Navigate Use one of the following methods: · 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 key in a submenu, you will return to the previous menu. How to Store Settings To store settings first go back to the main menu (fig. 5-1) with "MENU" button on the remote control and leave the SDAM with the "STANDBY" button on the remote control. How to Exit Switch the set to STANDBY by pressing the power button on the remote control transmitter. The error buffer is cleared. (If you switch the set 'off' by removing the Mains, the set will return in SDAM when the Mains is re-applied and the error buffer will not be cleared.) 5.2.2 Customer Service Mode (CSM) Purpose When a customer is having problems with his TV-set, he can call his dealer. The service technician can than ask the customer to activate the CSM, in order to identify the status of the set. Now, the service technician can judge the severness of the complaint. In a lot of cases he can advise the customer how to solve the problem, or he can decide if it is necessary to visit the customer. The CSM is a read only mode, therefore modifications in this mode are not possible. How to enter To enter the CSM by pressing RECALL on the System 7 remote control RG4172BK. After switching ON the Customer Service Mode, the following screen will appear:
1 2 3 4 5 6 7 8 9 10 11
A A A A B C X . Y C O D E X X X X XX O P X X X X X X X D E T E C T E D S Y S T E M N O T T U N E D S K I P P T I M E R C O X X C L X X B R V L X X B L X X T R X X B S X X MODE XXXXXXXXXXX PROGRAM NO. XXX
X X D E
C S M X X X X X X X X X X X X X E T E C T E D S O U N D D X X H U X X S H
X X X
X X
SMARTPORT XXX
E_14820_040.eps 011204
Figure 5-2 1. Software identification of the main micro controller (see paragraph 5.2.1 for an explanation). 2. Error code buffer (see paragraph 5.4 for more details). Displays the last five errors of the error code buffer. 3. In this line, the Option Bytes (OB) are visible. Each Option Byte is displayed as a decimal number between 0 and 255. The set may not work correctly when an incorrect option code is set. See chapter 8.3.1 for more information on the option settings. 4. Indicates which color and sound system is installed for the selected pre-set. 5. Indicates if the set is not receiving an IDENT signal on the selected source. It will display NOT TUNED. 6. Indicates if the sleep timer is enabled. 7. Value indicates parameter levels at CSM entry. CO= CONTRAST, CL= COLOR, BR= BRIGHTNESS, HU= HUE, SH= SHARPNESS 8. Value indicates parameter levels at CSM entry. VL= VOLUME LEVEL, BL= BALANCE LEVEL 9. Value indicates parameter levels at CSM entry (only for stereo sets). TR= TREBLE, BS= BASS 10. Mode Commercial = Hotel / Institutional mode or mode Consumer. Smartport. Indicates whether the Smart Port is selected or not. 11. Program NO. TV. Indicates to what channel the TV is tuned. How to Exit Use one of the following methods: · Press any button of the remote control transmitter keys. · Press RECALL on a System 7 remote control (the RCtransmitter RG4172BK). · Switch-off the TV set with the Mains switch.
5.3
5.3.1
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 have 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.
Service Modes, Error Codes, and Fault Finding
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. 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 COLOR. 6. Press the MENU RIGHT key to increase the COLOR value. 7. Press the MENU button on the remote control transmitter twice to exit the user menu. 5.4.2
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5.
EN 11
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.
5.4
5.4.1
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: · 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. · 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. · 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 RS232) 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: · Automatic (by communication 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 micro controller 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.
EN 12
·
5.
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Service Modes, Error Codes, and Fault Finding 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. 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. 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.
Manually (by asking questions to you): Automatic diagnosis is only possible if the micro controller of the television is working correctly and only to a certain extend. 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. Beside fault finding, ComPair provides some additional features like: · Up- or downloading of pre-sets. · Managing of pre-set lists. · Emulation of the (European) Dealer Service Tool (DST). · If both ComPair and Force/SearchMan (Electronic Service Manual) are installed, all the schematics and the PWBs of the set are available by clicking on the appropriate hyperlink. Example: Measure the DC-voltage on capacitor C2568 (Schematic/Panel) at the Mono-carrier. Click on the "Panel" hyperlink to automatically show the PWB with a highlighted capacitor C2568. Click on the "Schematic" hyperlink to automatically show the position of the highlighted capacitor. 5.4.3 How to Connect This is described in the chassis fault finding database in ComPair .
TO UART SERVICE CONNECTOR TO I2C SERVICE CONNECTOR
PC
VCR
Power 9V DC
I2C
E_06532_021.eps 180804
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).
Figure 5-3 ComPair interface connection 5.4.4 How to Order ComPair order codes (EU/AP/LATAM): · Starter kit ComPair32/SearchMan32 software and ComPair interface (excl. transformer): 3122 785 90450. · ComPair interface (excluding 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). · SearchMan32 CD (update): 3122 785 60080 (year 2002), 3122 785 60120 (year 2003), 3122 785 60130 (year 2004). · ComPair I2C interface cable: 3122 785 90004. · ComPair firmware upgrade IC: 3122 785 90510. · Transformer (non-UK): 4822 727 21632. · Transformer (UK): 4822 727 21633. · ComPair I2C extension cable: 3139 131 03791. · ComPair UART interface cable: 3122 785 90630. Note: If you encounter any problems, contact your local support desk.
Service Modes, Error Codes, and Fault Finding
Table 5-2 Error code overview
Error Device 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Error description Check item 2411, 2412, 2413, 6404, 6411, 6412 3404, 7405 3466, 7451, 7452, 7453, 7454 1000, 5010, (PIP Module) 7604, 7605 7200, 3207, 3214 7601, 3604, 3605 1000, 5001 7330, 3351, CRT 7242 (PIP Module) DVD Interface module 7610 7201 -
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5.
EN 13
Diagram A2 A2 A2 F2 A5 A4 A5 A3 B1 F1 DVD Loader H F2 A4 A4
Not applicable No Error Not applicable X-Ray/Over-voltage protection (US only) Not applicable High beam (BCI) protection Not applicable Vertical guard protection Tuner I2C bus I2C error while communicating with 2nd tuner General I2C error Not applicable +5v protection Not applicable Not applicable 24C16 Tuner TDA6107/A SDA9488X DVD Loader TDA9887 I2C error while communicating with the EEPROM I2C error while communicating with the PLL tuner Black current loop instability protection I2C error while communicating with the PIP processor I2C error while communicating with the DVD Interface module I2C error while communicating with PIP_Demodulator
Not applicable TDA9178T/N1 I2C error while communicating with LTI module Not applicable Not applicable TDA1200x TDA1200x
I2C error while communicating with SSD stereo sound decoder 7200 I2C error while communicating with video cosmic in Hercules IC 7200
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: · When all the error-codes are displayed, the sequence finishes with a LED blink of 1.5 seconds, · The sequence starts again. 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, · 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.
5.8.1
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.
5.8.2
Power Supply Set Not Working
Check Power Supply Mains Switch
Bridge Rectifier circuit 6500
Not Ok
Check fusible resistor 3510 & circuit before it
Ok
5.7
Protections
If a fault situation is detected, an error code will be generated; and, if necessary, the television set will go into 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 protection mode. The error codes of the error buffer and the blinking LED procedure can be read via the Service Default Menu (SDM), or via ComPair. To get a quick diagnosis the chassis has three service modes implemented: · The Customer Service Mode (CSM). · The Service Default Mode (SDM). · The Service Alignment Mode (SAM). For a detailed mode description, see the relevant sections.
Check DC voltage at 2505/2507
Not Ok
Ok
Check fusible resistor 3532
Check 7512
Check IC7511 & IC7531
Ok Check other fusible resistor and capacitor in the circuit
Set able to start-up
No
Yes
End
E_14480_057.eps 190204
Figure 5-4 Fault finding tree "Set not working"
5.8
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.
EN 14
5.
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Service Modes, Error Codes, and Fault Finding
Set Does Not Start Up
One Thin Vertical Line LED Blinking
Set Unable to Start
Software loaded?
No
Fuse Blown?
Yes
Change Fuse
Yes
Load Software Check voltage across 2552
Check all connection and peripheral at Deflection Circuit in place
Is Vbatt approximately 140V
No
Check Power Supply circuit
Check Line Transistor 7405
Yes Check voltage 2562 &2563 No 16V
Is VBE between 200mV to 30mV & VCB approximately 500mV
Yes
Check Horizontal Deflection Circuitry
Yes
Check 3V across 2535 Yes Check 6V across 2535
Replace transistor
E_14480_059.eps 170204
Yes
Set able to Start
No
Check Line Transistor 7405
Figure 5-6 Fault finding tree "One thin vertical line" One Thin Horizontal Line Quick check: · Set in protection mode. · LED blinking with error "2".
Yes
End
E_14480_058.eps 170204
Figure 5-5 Fault finding tree "Set does not start up" 5.8.3 Deflection One Thin Vertical Line Quick check: · Set in protection mode. · LED blinking with error "3".
Check all connection and peripheral at Deflection Circuit in place One Horizontal Thin Line LED Blinking
Check transistor (7451, 7523, 7543) at Vertical Deflection Circuitry
Replace transistor
Check Vertical Deflection Circuit
E_14480_060.eps 170204
Figure 5-7 Fault finding tree "One thin horizontal line" Blank Screen
Service Modes, Error Codes, and Fault Finding
5.8.5
Blank Screen
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5.
EN 15
Tuner and IF No Picture 1. Check that the Option settings are correct. 2. If correct, check that supply voltages are there. 3. If supply voltages are present, check whether picture is present in AV. 4. If picture is present in AV, check with the scope the Tuner IF output signal by manual storage to a known channel. 5. If IF output is present, Tuner is working fine. If no IF output, I2C data lines may be open, check continuity of I2C lines. If I2C lines are ok, Tuner may be defect, replaced Tuner. 6. If Tuner IF is present and yet still no picture in RF mode, go to Video Processing troubleshooting section. No Picture, No Sound
Check Vg2 (fine tune)
Ok
Picture appears?
Not Ok
Picture not appearing
Check Beam Current Limit (voltage is 1.8V-2V when brightness and contrast is set to the maximum
Not Ok
Check deflection circuit
Ok
No Picture, No Sound, Raster Ok
Check tuning supply voltage, pin 9 of tuner
Check heater voltage (measure pin 9&10 at the CRT socket)
Picture not appearing
Ok
Check AGC Voltage, pin 1 of tuner Yes
>30V & <35V
No
Check VT Supply Section
Not Ok Check video supply (2457) is approximately 180V
AGC voltage changes with different signal strength
Check supply voltage, pin 7 of tuner
Ok
Picture appears?
5V No
No
Check Power Supply
Ok End
E_14480_061.eps 170204
Yes Check AGC circuit section
Check Tuner pin 4 & 5 I2C Bus
Figure 5-8 Fault finding tree "Blank screen"
Ok No Check other functional area
5.8.4
Source Selection
Yes
Set is not able to go into AV or any missing AV is encountered E.g. AV1 is available but not able to enter to AV1: Check if the option setting is correct. Set is Able to Go into AV, But No Audio is Heard. 1. Check that continuity of signal is there from the SCART/ Cinch input to the input of the Hercules. 2. If continuity is there and still no audio, check that option settings are correct. 3. If logic setting is correct and still no audio, proceed to Audio Decoder/Processor troubleshooting section. Set is Able to Go into Av But No Video is Available: 1. Check continuity from AV input to HERCULES depending on the input. 2. If continuity is available and yet no video, proceed to Video Processor troubleshooting section.
Replace Tuner
E_14480_062.eps 170204
Figure 5-9 Fault finding tree "No picture, no sound"
EN 16
5.
L04HE AA
Service Modes, Error Codes, and Fault Finding
5.8.6 Controller Below are some guidelines for troubleshooting of the Micro Controller function. Normally Micro Controller should be checked when there is a problem of startup. 1. Check that both +3.3 V_dc and +1.8 V_dc are present. 2. Check that crystal oscillator is working. 3. Check that Power Good signal is at "high" logic, normal operation. 4. Check that HERCULES is not in standby mode. Pin 15 of HERCULES should be 0 V_dc. 5. Make sure H-drive pulse is there. This can be checked at resistor R3239. If H-drive does not exist, remove resistor R3239 to check if there is loading. Note: When the set shuts down after a few second after power "on", the main cause is that Vg2 not aligned properly, try adjusting Vg2 during the few seconds of power "on". 5.8.7 Video Processing No Picture When "no picture in RF", first check if the microprocessor is functioning ok in section "Controller". If that is ok, follow the next steps. When "no picture in AV", first check if the video source selection is functioning ok in section "Source Selection". If that is ok, follow the next steps. 1. Check that normal operating conditions are met. 2. Check that there is video signal at pin 81. If no video, demodulator part of the HERCULES is faulty, replace with new HERCULES. 3. If video signal is available at pin 81, check pin 56, 57, and 58 for the RGB signal. 4. If signal is not available, try checking the BRIGHTNESS and/or CONTRAST control, and make sure it is not at zero. 5. If still with the correct settings and no video is available, proceed to the CRT/RGB amplifier diagram. For sets with TDA9178, follow steps below: 1. Put Option Byte 2 bit 4 to "0"; if video signal is not available, then check fault finding section "Controller", Section "Source Selection", and steps above. 2. If video is available but not correct, put Option Byte 2 bit 4 to "1", then check if LTI panel is present. If not, put LTI panel in the main chassis (connector 1221). 3. If LTI panel is in main chassis, check cable between LTI panel and main chassis (position is 1206). If it is connected, then the LTI panel is faulty, replace it. For sets with Scavem, and Scavem does not work, follow steps below: 1. Check Scavem coil connector (position is 1361) if connected; if not, connect it. 2. If connected, check NVM "bit storage" byte 1 bit 7; if it is not "1", set it to "1". 3. If it is "1", then check the data of the NVM addresses as in the next table. If the data is not correct, then set these addresses to diagram values. 4. If it still not works, track Scavem output from pin64 of HERCULES to CRT panel.
Picture Ok, No Sound
Picture Ok, No Sound
Check IF output of tuner, pin 11
CVBS present?
No
Refer to fig. "Power Supply: Set not working"
Yes
Check SAW filter output (pin 4&5) EU/AP/CH (QSS)- 1001 NA/LA/AP INT - 1002
Output Ok?
No
Replace SAW filter
Yes
Check other functional area
E_14480_063.eps 170204
Figure 5-10 Fault finding tree "Picture ok, no sound" Unable To Perform Tuning
Unable to perform tuning
Enter SDM check optionbyte 1
Incorrect
Enter SDM and change to the appropriate byte
Correct
Check if tuner Supply Voltage pin 7
5V
No
Check Power Supply
Check I2C circuit
Replace Tuner
Yes
No
Check Tuner Supply Voltage Yes Check I2C at pin 4 & 5 and tuner
33V
Not Ok
Not Ok
Not Ok Ok I2C Check other functional area Not Ok
E_14480_064.eps 170204
Tuner
Table 5-3 NVM default values for Scavem Figure 5-11 Fault finding tree "Unable to perform tuning"
Description SPR, WS VMA, SVM NVM_SOC_SMD Address (dec) Address (hex) Value (hex) 140 141 142 8C 8D 8E 00 32 03
Service Modes, Error Codes, and Fault Finding
5.8.8 Audio Processing No Sound
Picture Ok, No Sound
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5.
EN 17
Tuner IF Ok
Not Ok
Check Tuner/IF
Ok
Check AUDOUTLSL & AUDOUTLSR pin at Hercules
Not Ok
Check Hercules IC
Ok
Check Audio Amplifier
Not Ok
Check Audio Power Supply
Check Power Supply
Ok
Check Audio Amplifier Circuit and loud speaker
Not Ok
Replace Audio Amplifier
Ok
Check NVM
E_14480_065.eps 170204
Figure 5-12 Fault finding tree "No sound" No RF Audio for QSS/Inter-Carrier Stereo Sets. 1. Check pin 99 and 100 for SIF signal (for QSS) or pin 104 and 105 for video with SIF (for Inter-Carrier) 2. If signal is not present, check for the QSS/FMI bit settings. Check also the NVM data. 3. If signals are present and still no audio, check the audio supply voltage +8V are present. 4. If still no audio signal at Hercules output, Hercules is faulty. No AV Audio. 1. Check troubleshooting methods in section "Source Selection". 2. Check the output of the Hercules to see if there is signal available. If no, check the normal operating condition and also the NVM data. 3. If still no audio signal at Hercules output, Hercules is faulty. Note: If there is audio signal at Hercules output and no audio at loudspeaker, proceed to Audio Amplifier troubleshooting methods. 5.8.9 Audio Amplifier No RF as well as AV Audio at the Loudspeaker: 1. Check that the normal operation condition of the amplifier is met. 2. If normal operation conditions are met, check the continuity from Hercules output to input of the amplifier. 3. If continuity is there and still no audio, check speaker wire connections. If still no audio, amplifier IC might be faulty
EN 18
5.
L04HE AA
Service Modes, Error Codes, and Fault Finding
Personal Notes:
E_06532_012.eps 131004
Block Diagrams, Testpoint Overviews, and Waveforms
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6.
19
6. Block Diagrams, Testpoint Overviews, and Waveforms
Wiring Diagram
WIRING DIAGRAM FOR "SYSTEM"
DEGAUSSING COIL DEGAUSSING COIL
E
1010 3P
TOP CONTROL PANEL (OPTIONAL)
AQUADAG
CRT (16:9)
FRAME ROTATION COIL YELLOW
AQUADAG EHT CRT
CRT (4:3)
EHT CRT
(component view)
B
RIGHT SPEAKER
1331
CRT PANEL
(OPTIONAL) 5P 1351 1361 3P
ORANGE BLUE
DEFLECTION CONNECTOR
OR
RED SCAVEM COIL
1332 1352
(VG2)
LEFT SPEAKER
7P
CRT SOCKET
1381 3P
B
CRT PANEL
(optional)
OR
U
MAINS HARMONIC FILTER
0002 2P
J
6P
D
SVHS CVBS (YELLOW) LEFT (WHITE) RIGHT (RED)
SIDE A/V
1902
1693 1692 7
FRONT INTERFACE (OPTIONAL)
5P
7P
1
1507 2P 1504 2P 1505 2P
1252 7P
MAINS SWITCH
1693
OR OR
1505 2P
1108 2P
6P
OR OR
0001 2P
HEADPHONE
5P 5 1280 1
MAINS CORD
1254
5P
A
1220 6
MONO CARRIER
3P 1279 3P 1281
4P 1278 3P 1280
6P
1682
7P
1 1206
3P
1213 7 1 1221
0228 5P
G1
3P
1404 2P
F
EXTERNAL POWER SUPPLY
1204
0211 2P 0213 2P
7P
7P
REMARK: IF SIDE AV IS NOT MOUNTED THE SPEAKERS ARE CONNECTED TO CONNECTOR 1280 ON THE MONO CARRIER
5P
I1
1246
SP/LS MODULE
1010
7P
D
1212 1 1401
5401
J1 INTERFACE MODULE
1 1212 10P 1 1215 3P 1800 32P
LOT
1207
1208
1227 6P
(SMART PLUG+ BATH ROOM SPEAKER)
7P
3P
6
1
3P
3P
0262
3P
9P
1251
1762
1219 9
1451 2P
0228 5P 5 1
3P
9P
G
CLOCK MODULE
TUNER
3P
4P 0237
1259
1582 3P 1219 4P 1220 6P 1259 9P 1692 5P
3P
1728
1727
1213 7P 0237 4P
U1 U2 1005 3P COMPAIR CONNECTOR
I1
SP/LS MODULE
1775 1P
E_14820_044.eps 221204
Block Diagrams, Testpoint Overviews, and Waveforms
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6.
20
Block Diagram Supply and Deflection
SUPPLY AND DEFLECTION
U
MAINS HARMONIC (OPTIONAL)
F
EPS4
T1
B
0001 1 2 0002 1 2 0213 1 2 L1 L2
CR3
IC4
1 3
2
L8 C35
D4
BR1
AC
1000 4A
3000 5000 5001
2001
F1 4A
1 IC1 TOP233Y 7 3 C 2 E A 5 2 D 5 4
R12
CR1
IC5
1 3
2
L7 D5 C23 L10
CON3 5 2 3 2 1
+3.3V TO 0228 GND +12V GND INTERFACE MODULE +5V
J1
G
LINEARITY & PANORAMA
7460 ACTIVATING CIRCUIT 7462
DC
D3 R13 R29
L9 R25
ONLY FOR: WIDE SCREEN
0003 1 2 N.C.
D2 4 3 IC3 1 2 IC2 TLP721
2466 2464 2467
(OPTIONAL) 1505 1110 1
J
FRONT INTERFACE PANEL
1108 1
1461 4 1 LINEARITY AND PANORAMA CORRECTION
2474 2475
1464 4 1 HOR. DEFL. COIL 1463
2
2
OR
OR
MAINS SWITCH
OR
INSTEAD OF 1506
0211 1 2 HOT GROUND
1462 1
C2 COLD GROUND
+9V
TO 1221
OR
A5
CONNECTIONS
2 3 I2SD/1
7463
DEFLECTION
A1 POWER SUPPLY
Degaussing Coil
9507 1505 1
2240
3232
2
1
3507
4 1
t
5500 : 5503
OR
3
ENERGIZING CIRCUIT (optional)
Vguard
1503
EHTinfo
1504 2
A4 HERCULES
7541 V_DG 7200 TDA12021H1 112
A2
A2
A2 LINE + FRAME DEFLECTION
+6VA Vbatt
113
116
LINE
7408
F402
1506
9500
6500
AC F508
VIDEO IDENT
VERTICAL GUARD DETECTOR
HD R.G.B. BLANKING TO RGB PROC.
-9V
F412
6401 5445
F414
I433
6486 3 1 5402 7405 BU4508DX
EHT
2
DC
2505 5512 9 17 18
F563 F206
TO CRT
7401 : 7403 3411 7480 : 7483 POWER-DOWN
A1
FRAME_FB
MAINS SWITCH 9508
OR
7404 HDRIVE
B1
5551 6551
F552
5552
MAIN SUPPLY
I513
Vbatt
PHI 1 DETECTOR
HORIZONTAL OSC.
PHI 2 DETECTOR
HORIZONTAL OUTPUT
62
OR
F418
+Vbatt
8 4
HD 5562 6563
9514
FOCUS VG2
7511 TEA1506T
DRAIN
3513 14 11 9 3514
G
13 14
7512
I516
-Vaudio
F561
7207
D S
5 3 2
63 +Vaudio INTF_Y GREEN_IN 56
SANDCASTLE
E/W
+9V +9V
A5
3291
DRIVER I511
I519
2 2511 6
Vcc
SENSE
3522 3516
7514
10
5561 6562
6571
A5
CONTROL IC
CTRL DEMAG
+6VA 11 3571 7571 REFERENCE CIRCUIT 3575
MAIN SYNC SEPARATOR
SANDCASTLE GENERATOR
HD_PIP
LINE OUTPUT CIRCUIT + E/W 3497 CORR.
1404 1 10 2 HOR. DEFL. COIL
3442
3451
EHTb EHTb + EHTinfo + EHTinfo BCL PROC.
A4
6481 3481
3410 2403
BCL
A5
A4
1454
3420
3440
I417
7
3517
6511 4
3518
E/W + GEOMETRY
F205
108
EW_DRIVE
7410
7406
6
6452 6483 6453 6484
3458 3484
F452
-12V Vbatt
F453
7484 5
3498
1 7515 TCET1103 7573 2 6573
+3V3 STANDBY CIRCUIT
3576
VIDEO/SUPPLY
F455
Stdby_Con
3
A4
I573
7 7411 8 6456
FILAMENT
3485 1452
+9V
3423 2456
STANDBY SUPPLY
6512 7531 TEA1620 3 6533
3530
Vcc DRAIN
1532 1A
3532
9 EHTinfo 5531 4 6564
7561 6565 2564 6566 3565
I565
6454 6455
POWER-DOWN A4 2x
F564
A2
97
EHTo
X-RAY PROTECTION
FRAME
+9V
I462
3455
6459
3519
I533
14
5 6535
CONTROL IC
6
REG SOURCE
2534
10 9
2535
F536
6576 5537
+3V +6VA +6VA +6V
VERTICAL SYNC SEPARATOR
VERTICAL DIVIDER
VERTICAL SAWTHOOTH
7532
I531
12 3538
1 2
8
6458
6536 2536
VERTICAL OUTPUT + GEOMETRY
106 107
VDRA VDRB
F460
3462
7451
3474
F461
EHTb Vguard
1401 5 4
A4
7454
3466
F458
FILAMENT VIDEO/SUPPLY
Vbatt
7455
7456
3 2 1
TO 1351
B1
CRT
F537
11
AUX
6 6532
3534 3531
6537
S
D 7535 G I548 7536
Vaux
I468
7453 7452
1451 1 2 VER. DEFL. COIL
F459
3463
B
A4
-12V
3461 3471
3401
VT_SUPPLY
F401
A4
For IDTV only
HOT GROUND
COLD GROUND
FRAME_FB
F412 F508 F511 F531 F537 268V / div DC 15V5 / div DC 2V7 / div DC 0V (N.A.) F552 F561 F564 F573 130V / div DC 15V9 / div DC 9V4 / div DC 0V (N.A.) F401 F402 130V / div DC 32V8 / div DC
F414
F418 F452 F453 -13V4 / div DC 190V8 / div DC
2V / div DC 20µs / div I513 I516 I519 I533 F455 F458
200V / div DC 20µs / div F459
5V / div DC 20µs / div F460 F461 I417 I433 I462 I468
100V / div DC 5µs / div
100V / div DC 5µs / div
2V / div DC 5µs / div
100V / div DC 5µs / div
5V / div DC 20µs / div
20 V / div DC 5ms / div
1V / div DC 5ms / div
500mV / div DC 5ms / div
500mV / div DC 5ms / div
500mV / div DC 20µs / div
10V / div DC 20µs / div
10V / div DC 5ms / div
5V / div DC 5ms / div
E_14820_045.eps 220605
Block Diagrams, Testpoint Overviews, and Waveforms
L04HE AA
6.
21
Testpoint Overview Mono Carrier
3139 123 5676.3
E_14970_045.eps 090904
Block Diagrams, Testpoint Overviews, and Waveforms
L04HE AA
6.
22
Block Diagram Video
VIDEO
J1
INTERFACE MODULE (VIDEO PART) - for "SYSTEM" version only VIDEO INTERFACE
A5
1219
7705,7706 PULSE FORMER
N.C. HD CVBS0 1 2 3 4
1219
6 7 8 9 N.C. HD_PIP ITV_V1OUT
11 22 18
DCM MODULE
HSYNC_OUT CVBS_OUT G_IN B_IN R_IN
7716
A4
See block diagram DEFLECTION
1212
1212
4 INT_Y/GREEN_IN INT_Pb/BLUE_IN INT_Pr/RED_IN INT_FBL SANDCASTLE
17 19 20 12 31 32
7708
G B R
2 3 4
6 8 9 10
FBL_IN VSYNC_OUT Y_VIDEO_IN C_VIDEO_IN
A4
FBL
6 7
See block diagram DEFLECTION
7720 PULSE FORMER
SC
1229 1
Y/CVBS Cin 2 3
SC1_R/G/B
INTF_Y/GREE_IN
A4 HERCULES
7200-A (IF) 7200-B (CVBS I/O + FILTERS + COLOUR DECODING)
(RGB/YPrPb/YUV 7200-C INPUT SWITCHING)
49
50 51
53
INTF_U-OUT
SEE BLOCK DIAGRAM AUDIO
SC1_RED_IN
SSIF
SC1_BLUE_IN
TO AUDIO PART
54
55
57 58 59
INTF_Pr/RED_IN
SC1_GREEN_IN
SC1_FBL
INTF_Pb/BLUE_IN
A3
+5V
TUNER IF
DIGITAL SIGNAL PROC. - 4:3 LINEAR/NON-LINEAR SCALING - DOUBLE WINDOW PROC.
A2 VT_SUPPLY
7003 SSIF
9002 9003 +5VS 5001 1000 6 7 9 VT
FM ERR FM-RADIO FM 10 10 TUNER F002
6001 BZX79-C33
PHASE DISC
1002 1003
VCO
SWITCH
86
SW_SC2_CVBS 81 N.C. SC1_CVBS_OUT
OUTPUT SWITCH
65
YPrPb2/ YPrPb3 SELECTION N.C. SC1_FBL
RGB2/ RGB3 SELECTION ADC DAC
INTF_CVBS_OUT
PLL
VIF_1 VIF_2 105 104
+ 11 TV TUNER IF
TV
F004
VIDEO IF
VIDEO DEMOD
SOUND TRAP
SC1_CVBS_IN 74 SC2_Y/CVBS_IN 71 SIDE_Y/CVBS_IN 78 CVBS1 INPUT SWITCH CVBS/Y COMB FILTER &TRAP SWITCH C PAL, NTSC CHROMA/CVBS SECAM DECODER Yint Uint Uint Vint Vint 52 INSSW3 VIDEO IDENT SELECTION LOGIC
YUV RGB DVD
Yint
Yint
DVD TO DVD
RGB TO DVD
DVD TO YUV
YUV TO DVD
5 3001
I002
4
AGC 1 RF_AGC 98
A4 SDA
3000
I001
TUNER IF AGC
PLL FM/QSS TO AUDIO PART AM
See block diagram AUDIO
Y Pr Pb
DINT FILAMENT ROTATION OUTPUT 1381 1 2 ROTATION COIL (OPTIONAL) FILAMENT VSVM SCAVEM OUTPUT 1361 1 2 SCAVEM COIL (OPTIONAL) +200VA 1331 1 B 2 G 3 R 4 5 6 7 BC_INFO SVM 25kV 7 ROT VSVM FILAMENT 5352 VG2 FOCUS DEFLECTION
F333 F331 F341
A4 SCL
1004 7001 SIF1 SIF2 100 99 FILTER SELECTION
SOUND MIXER AUDIO IF QSS/AM AM SOUND DET.
SC2_CHROMA_IN 70 SIDE_CHROMA_IN 77
RGB
A4 SEL-LLPIM
A8 REAR I/O SCART (VIDEO PART)
SCART 1
7701
SC1-CVBS-OUT SC1-CVBS-IN
21 19 20 16
F205 F201 F203 2V / div DC 2V / div DC 500mV / div DC 10ms / div
A4
F206
F240
F241
F242
F331
F332
F333
SC1-FBL
SC1-RED-IN
15 11 7
B1 CRT
1V / div DC 20µs / div F218 500mV / div DC 20µs / div F224 500mV / div DC 20µs / div F225 500mV / div DC 20µs / div F226 500mV / div DC 20µs / div F338 500mV / div DC 20µs / div F339 500mV / div DC 20µs / div F341
B2 SCAVEM
SC1-GREEN-IN
8
SC1-STATUS
ROT
SC1-BLUE-IN
F216
SC1-R/G/B
F217
1729 3 2 1
SC2-CHROMA-IN SC2-Y/CVBS-IN
1V / div DC 20us / div
1V / div DC 20us / div
1V / div DC 20us / div
500mV / div DC 20us / div
500mV / div DC 20us / div
500mV / div DC 20us / div
50V / div DC 20us / div
50V / div DC 20us / div
50V / div DC 20us / div
A4 HERCULES
7200-D (YUV PROCESSING)
A5
7200-E (RGB PROCESSING + CATHODE CALIBRATION)
SVM
FROM µP PART
F240 F241
G_OSD
R_OSD
B_OSD
F242
SIDE AV (OPTIONAL)
FBL
D
A5 CONNECTION
R
1204 42 3226 3227 3228 BOUT GOUT ROUT IBLACK 45 SVM 1 2 3 4 5 6
7330 3
F332
YUV
DVD
7 B 3332 9 G 3334 3336
F338
1332 11 6
B G R
1252
Y
1207 7 6
SIDE_CHROMA_IN
7 6
Y Pr PEAKING
WHITE/BLACK STRETCH GAMMA COR.
RGB ADDER
G B
CLAMP + MUTE
BLUE STRETCH & CONTRAST
AQUADAG
OSD INSERTION
BRIGHTNESS + PEAK WHITE LIM.
CATHODE CALIBRATION
OUTPUT STAGE
43 44
1
2
3
Pb C
F339
8
CRT
SVHS
1 5 4
5
5
SIDE_Y/CVBS_IN
2 5
8 R
10 9
5 7 1
VIDEO IN
R_Y TINT CONTROL SKINTONE SATURATION MATRIX G_Y B_Y
64
BEAM CURRENT LIM.
46 ROT 7308 BCL
+200V 3351 +200VA 2351
EHT-b
SCAVEM PROC.
A2 FROM DEFLECTION
A2
A4
1351
1 1351 3 2
4
5
E_14820_042.eps 220605
to 1401 A2 DEFLECTION
EHT
Block Diagrams, Testpoint Overviews, and Waveforms
L04HE AA
6.
23
Testpoint Overview CRT Panel
F331 F332 F333 F334 F335 F336 F338 F339 F340 F341 F351 F352 F353 F354 F356 F360 F361 F362 F381 F382 I330 I331 I332 I333 I334 I335 I336 I337 I351 I353 I355 I357 I360 I361 I362 I363 I364 I365 I366 I367 I368 I369 I370 I371 I372 I373 I374 I375 I381 I383 I384 I385 I386 I387 A2 A2 A2 A2 A2 A2 A2 A1 A1 A1 A2 A2 A2 A2 A1 A2 A1 A1 A1 A1 A2 A2 A2 A2 A2 A2 A1 A2 A2 A1 A1 A2 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1 A1
CRT
3139 123 5674.1 (moet zijn 3139 123 5889.3)
E_14820_009.eps 201204
Block Diagrams, Testpoint Overviews, and Waveforms
L04HE AA
6.
24
Block Diagram Audio & Control
AUDIO A3 TUNER IF
7003 9002 +5V 9003 +5VS
A4 HERCULES
7200-A (IF)
SSIF
A8
7200-F (AUDIO) DIGITAL PART
REAR I/O SCART
SPDIF
(optional)
3762
1228 1 2
A2 VT_SUPPLY
5001 1000 2
FM
6001 BZX79-C33 9 VT
F002
SCART 1 6
6, 7
PHASE DISC
1002 1003
VCO
FM/QSS SSIF
96
FM DEM.
AMPLI + MUTE
AUDIO SOURCE SELECTION
ADC
DIGITAL SOUND PROCESSING
DAC
AUDIO SELECT
SCART CINCH OUTPUT
93 92
SC1_L_OUT SC1_R_OUT
3 2 1
7706 : 7707
3
ERR FM-RADIO FM 10 10 TUNER
PLL
VIF_1 VIF_2 24 25
To VIDEO PART see block diagram VIDEO
MUTE CIRCUIT
+ 11 TV TUNER IF
TV
F004
SUBWOOFER
3757
AM DIGITAL STEREO SOUND DECODER AUDIO SELECT HP OUTPUT 67 66 SC2_L_OUT SC2_R_OUT
3764 7705 5
ERR 19
(optional)
VIDEO IF
VIDEO DEMOD
5 3001
I002
4
AGC 1 RF 31
INTF_R_IN INTF_L_IN TUNER IF AGC PLL SC2_R_IN SC2_L_IN SOUND MIXER AUDIO IF QSS/AM AM SOUND DET. FM/QSS SIDE_R_IN SIDE_L_IN AM SC1_R_IN SC1_L_IN
75 76 72 73 79 80 94 95
3761
MONITOR OUT
L R
4 1 7703
MUTING
A4 SDA
3000
I001
A4 SCL
1004 7001 SIF1 SIF2 29 30 FILTER SELECTION
LS OUTPUT
68 69
MAIN_OUTR MAIN_OUTL
2
7702
(OPTIONAL)
A4 SEL-LLPIM
A8 REAR I/O SCART
SCART 1 6 3 2 1
SC1_L_IN SC1_R_IN
F952
J1
INTERFACE MODULE (ONLY FOR SYSTEM SETS) (AUDIO PART)
A7 AUDIO AMPLIFIER I951
A4
1227
V AUDIO+1 7990 TDA2616Q 7
500mV / div AC 2ms / div
F952
7993, 7994
A5
A4 Stby_Con A4 POWER_DOWN
MUTE
MUTING
1727 1 2 3
1800 32 P CONN.
SC2_L_IN
26
SC2_R_IN
HERCULES
MAIN_OUTL
50mV / div AC 2ms / div
I951
27 DCM MODULE 28
F_R_AUDIO_OUT F_L_AUDIO_OUT
1 2 3
1208 1 2 3
1
I952
4
F955
1280 5 4
SC2_L_OUT
MAIN_OUTR
L 8 Ohm/15W
OR OR
9
SC2_R_OUT
6
2 1
I952
R 8 Ohm/15W
D
L R
SIDE AV (OPTIONAL)
1252 3 1
A5 CONNECTIVITIES
1207 3 1
SIDE_L_IN SIDE_R_IN
7991 7992
2 5
D
F955
SIDE I/O (OPTIONAL)
29 30
R_AUDIO_IN L_AUDIO_IN
4 5 6
50mV / div AC 2ms / div
I1
1246 1 2
VOL_MUTE
A4
VOLUME + MUTE
HP
1254 1278
SP/LS (LS, Loudspeaker part)
U2
7991
-V AUDIO
16 Ohm RT1 Bath Room Speaker
500mV / div AC 2ms / div
3
CONTROL
E
TOP CONTROL (OPTIONAL) LOCAL KEYBOARD
A4 HERCULES (CONTROL) D
1010 2
SIDE A/V
A5 FEATURES
+3.3V
I1
1259
SP/LS MODULE (SP, SMART PLUG PART) DATA_OUT DATA_IN CLOCK
SMART PLUG LOADER U1
1281 2
1280 2 1682 2
7200-G (Control) TDA12001H1 22 WRITE_PROTECT
+3.3V
1
EEPROM 8 (NVM) 7 6 ERR 5 9
4
Q1
DATA_OUT DATA_IN CLOCK +5V SMART LOADER
2 3 4 5
2 1
I/O PORTS
9 32