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Colour Television
Chassis
SK2.0A
CA
G_16540_000.eps 041006
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 Chassis 11 Schematic Overview 12 7. Circuit Diagrams and PWB Layouts Diagram Mono Carrier: Power Supply (A1) 13 Mono Carrier: Line Deflection (A2) 14 Mono Carrier: Frame Deflection (A3) 15 Mono Carrier: Tuner IF (A4) 16 Mono Carrier: CPU and Decoder (A5) 17 Mono Carrier: Audio Amplifier (A6) 18 MC: Sound Adjusting and Video Switch (A8) 19 CRT Panel (B) 22 Keyboard Panel (D) 24 Side AV Panel (E) 26 8. Alignments 27 9. Circuit Descriptions, Abbreviation List, and IC Data Sheets 31 Abbreviation List 31 IC Data Sheets 33 10. Spare Parts List 40 11. Revision List 43
PWB 20-21 20-21 20-21 20-21 20-21 20-21 20-21 23 25 26
© 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 0671 BD CD Customer Service
Printed in the Netherlands
Subject to modification
EN 3122 785 16542
EN 2
1.
SK2.0A CA
Technical Specifications, Connections, and Chassis Overview
1. Technical Specifications, Connections, and Chassis Overview
Index of this chapter: 1.1 Technical Specifications 1.2 Connection Overview 1.3 Chassis Overview Note: Data below can deviate slightly from the actual situation, due to the different set executions.
G_16540_034.eps 041006
AUDIO VIDEO L R S-VIDEO
1.1
1.1.1
Technical Specifications
Vision Display type Screen size Tuning system TV Colour systems Video playback Presets/channels Tuner bands : : : : : : : : : CRT 29" (72 cm), 4:3 VST PAL D/K, I NTSC M/N 3.58, 4.43 PAL 50 256 channels VHF UHF
Figure 1-2 Side I/O connections
1.1.2
Sound Sound systems : : : : FM-mono AV-mono AV-Eco Stereo 2x3
Maximum power (WRMS) 1.1.3 Miscellaneous Power supply: - Mains voltage (VAC) - Mains frequency (Hz) Ambient conditions: - Temperature range (°C) - Maximum humidity Power consumption - Normal operation (W) - Stand-by (W)
G_16530_037.eps 310706
Figure 1-3 Front Control (IR / LED) Cinch: Video CVBS - In, Audio - In Ye - Video CVBS 1 VPP / 75 ohm Wh - Audio L 0.5 VRMS / 10 kohm Rd - Audio R 0.5 VRMS / 10 kohm S-Video (Hosiden): Video Y/C - In 1 - Ground Y Gnd 2 - Ground C Gnd 3 - Video Y 1 VPP / 75 ohm 4 - Video C 0.3 VPP / 75 ohm 1.2.2 Rear Connections
75 Ohm
: 160 - 260 : 50 / 60
jq jq jq
: -5 to +45 : 90% R.H.
H H j j
: 70 : <9
1.2
Connection Overview
Note: The following connector colour abbreviations are used (acc. to DIN/IEC 757): Bk= Black, Bu= Blue, Gn= Green, Gy= Grey, Rd= Red, Wh= White, and Ye= Yellow.
1.2.1
Front Control and Side Connections
G_16540_035.eps 041006
Figure 1-4 Rear connections
G_16530_036.eps 310706
Aerial - In - - IEC-type (EU)
Coax, 75 ohm
D
Figure 1-1 Front Control
Cinch: Video CVBS - Out, Audio - Out Ye - Video CVBS 1 VPP / 75 ohm Wh - Audio L 0.5 VRMS /10 kohm Rd - Audio R 0.5 VRMS / 10 kohm Cinch: Video CVBS - In, Audio - In Ye - Video CVBS 1 VPP / 75 ohm Wh - Audio L 0.5 VRMS / 10 kohm Rd - Audio R 0.5 VRMS / 10 kohm
kq kq kq
jq jq jq
Technical Specifications, Connections, and Chassis Overview
Cinch: Video YPbPr - In Gn - Video Y 1 VPP / 75 ohm jq Bu - Video Pb Rd - Video Pr
SK2.0A CA
0.7 VPP / 75 ohm 0.7 VPP / 75 ohm
1.
EN 3
jq jq
1.3
Chassis Overview
CRT PANEL
B A1 A2 A3 A4 A5 A6 A8
D E
FRONT CONTROL PANEL
MAIN
SIDE AV PANEL
POWER SUPPLY LINE DEFLECTION FRAME DEFLECTION TUNER IF CPU AND DECODER AUDIO AMPLIFIER SOUND ADJUST & VIDEO SWTICH
CHASSIS
PANEL
G_16540_036.eps 041006
Figure 1-5 PWB location
EN 4
2.
SK2.0A CA
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 colour bar signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated otherwise) and picture carrier at 475.25 MHz for PAL, or 61.25 MHz for NTSC (channel 3). Where necessary, measure the waveforms and voltages with (D) and without (E) aerial signal. Measure the voltages in the power supply section both in normal operation (G) and in stand-by (F). These values are indicated by means of the appropriate symbols. The semiconductors indicated in the circuit diagram and in the parts lists, are interchangeable per position with the semiconductors in the unit, irrespective of the type indication on these semiconductors. Manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic" and the "double-D symbol", are trademarks of Dolby Laboratories.
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
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 (= 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. ·
SK2.0A CA
2.
EN 5
·
·
· · · ·
·
2.4.3
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).
MODEL : 32PF9968/10
MADE IN BELGIUM 220-240V ~ 50/60Hz 128W VHF+S+H+UHF
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! 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. 2.4.4 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 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. 2.4.5 Practical Service Precautions · It makes sense to avoid exposure to electrical shock. While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard. Always respect voltages. While some may not be dangerous in themselves, they can cause unexpected reactions that are best avoided. Before reaching into a powered TV set, it is best to test the high voltage insulation. It is easy to do, and is a good service precaution.
PROD.NO: AG 1A0617 000001
S
Figure 2-2 Serial number example
BJ3.0E LA
E_06532_024.eps 130606
Regardless of the special lead-free logo (which is not always indicated), one must treat all sets from this date onwards according to the rules as described below.
P
b
Figure 2-3 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 stabilise the adjusted temperature at the solder-tip. To exchange solder-tips for different applications. · Adjust your solder tool so that a temperature of around 360°C - 380°C is reached and stabilised at the solder joint. Heating time of the solder-joint should not exceed ~ 4 sec. Avoid temperatures above 400°C, otherwise wear-out of tips will increase drastically and flux-fluid will be destroyed. To avoid wear-out of tips, switch "off" unused equipment or reduce heat. · Mix of lead-free soldering tin/parts with leaded soldering tin/parts is possible but PHILIPS recommends strongly to avoid mixed regimes. If this cannot be avoided, carefully
·
EN 6
3.
SK2.0A CA
Directions for Use
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
SK2.0A CA
4.
EN 7
4. Mechanical Instructions
Index of this chapter: 4.1 Set Disassembly 4.2 Service Positions 4.3 Assy / Board Removal 4.4 Set Re-assembly Note: Figures below can deviate slightly from the actual situation, due to the different set executions.
4.3
Assy / Board Removal
Sometimes, it can be necessary to swap a complete assy or Printed Wiring Board (PWB). How that can be done is explained below for the Side I/O Panel.
4.3.1
Side I/O Panel Removal
4.1
Set Disassembly
Follow the disassemble instructions in described order.
4.1.1
Rear Cover Removal Warning: disconnect the mains power cord before you remove the rear cover. 1. Remove all the fixation screws of the rear cover. 2. Now, pull the rear cover backwards and remove it.
G_16530_002.eps 030806
Figure 4-3 Side-I/O panel removal
G_16530_005.eps 310706
Figure 4-1 Rear Cover removal
1. Remove the complete Side I/O Assembly as follows: first, remove the three fixation screws. 2. Then, release the three fixation clamps, and lift the board out of its three brackets.
4.2
Service Positions
This chassis has a predefined service position, for better accessibility. It is explained below in more detail.
4.4
Set Re-assembly
To re-assemble the whole set, do all processes in reverse order. Be sure that, before the rear cover is mounted: · The mains cord is postioned correctly in its guiding brackets (make sure that the strain relief is replaced in its correct position and that it will function correctly!). · All wires/cables are returned in their original positions.
4.2.1
Service Position Main Panel Removing cables and repostioning the panel For better accessibility of the Main Panel, do the following (see Figure "Service position"): 1. Disconnect the strain relief of the AC power cord. 2. Remove the Main Panel. At the same time pull the panel away from the CRT. 3. Disconnect the degaussing coil by removing the cable from the connector. 4. Move the panel somewhat to the left and flip it 90 degrees with its components towards the CRT.
G_16530_006.eps 070806
Figure 4-2 Service position
EN 8
5.
SK2.0A CA
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 Error Codes 5.4 Fault Finding (3) Is the AGC circuit of tuner working normally? (4) Let the TV set do Auto Searching of channels, and check if the VT voltage of the tuner varies between 0~33V. If not, check the peripheral components of the tuner, to see if they are causing the problem. 5.4.4 White Raster Only (no Picture Visible). Analysis and repair action: if the antenna signal is normal: according to the problem phenomena, the trouble range can be divided into five parts: the CPU, the memory chips, the data transport of the I2C circuit, the horizontal and vertical deflection pulse circuit, the CRT power supply circuit, and finally the entire video amplification circuit (including the IF stage). If the CPU or memory have problems, this will also cause problems of I2C data. If the problem still cannot be eliminated, check the load of the I2C lines, namely, the other ICs that are connected to the I2C bus (they may also have a defect and cause a too heavy load on the I2C bus. Interrupt the I2C bus to reduce the load and check again if the CPU puts I2C data on the I2C bus. 5.4.5 The TV Set Switches "ON" and "OFF" Randomly When it has been Turned "ON" for some Time. · Analysis and repair action: according to experience, the chassis power or the part of the horizontal deflection has bad connections, resulting in "ON-OFF" switching of the power supply. Check on pins 14 and 39 of IC201 if they have their normal power supply (+8V), check if pin 61 has a supply of +5V. If the voltages are normal, please change Q604 and Q605.
5.1
Test Points
See chapter 6 "Block Diagrams, Testpoint Overviews, and Waveforms". Perform measurements under the following conditions: · Service Default Mode. · Video: colour bar signal. · Audio: 3 kHz left, 1 kHz right.
5.2
Service Modes
This chassis does not contain a specific Service Mode. Service and Alignment of the TV set can be done via the Factory Mode by the service technician, see further down in this manual.
5.3
Error Codes
Not applicable.
5.4
5.4.1
Fault Finding
No Picture and Sound, STR9656 is Destroyed Frequently by Overheating. · Analysis and repair action: according to the trouble phenomena, this problem is caused by the output voltage no longer being regulated, when the input AC voltage increases or decreases normally. The main voltage sampling is done by IC602, and the output voltage is controlled by feedback of IC603. If even a steady voltage process causes a problem, then it is possible that STR965 has been destroyed by a too large current. In that case please check the steady voltage loop R618, R613, C616, and replace IC602 and IC603 if needed. Note: Do not replace components blindly if STR9656 is burnt.
5.4.6
The Indicator Light is "ON" when the TV Set is Turned "ON", but there is no Picture and no Sound. Analysis and repair action: measure on the horizontal output transistor Q301 if the voltage on its collector is 140V. If the 140V is present, this eliminates the possibility that there are problems in the horizontal scan part. Next, check if the horizontal pulse output voltage (on the pin 33 of IC201) is 2.8VAC. If this is the case, check the horizontal driver transistors Q301 and Q302. Are the voltages of their work points normal; and do both transistors switch normally between their "on" and "off" states?
5.4.7
Only a Blue Screen is Visible, but no Video Signal. Analysis and repair action: The TV set contains the function of "noise-reduction". Therefore, if the CPU estimates there is no signal when it checks for a video signal, only a blue screen will appear. If the video signal appears only intermittently, with blue screens in between, check if the tuner and the intermediate frequency amplifier are working correctly. If not, replace IC201 and the peripheral components of the IF circuit.
5.4.2
No Picture and Sound, Control does not Work, and the Problem cannot be Eliminated via the Menu Displayed on the Screen. · Analysis and repair action: according to the trouble phenomena the CPU has problems, for example an interior program hang-up. Check if the input and output voltages of the CPU pins are normal. Are the digital voltages on the CPU pins switching normally between high and low levels? If not, try replacing the components of the crystal oscillator. If the problem still cannot be eliminated in this way, please try replacing the main chip IC201. It may also be the case that there is an electricity leak in the circuit caused by parts of the circuit being wet. In that case, please use a blower for drying the circuit and turn on the TV then.
5.4.8
Horizontal Deflection Transistor is Defect. Analysis and repair action: if the deflection time is decreased too much, this may result in an over-voltage in the deflection circuit and a defective horizontal transistor. In this case, check C306, C303 and C304 for defects.
5.4.3
Big Snow Dots Visible on the Screen. Analysis and repair action: according to the problem phenomena, first check: (1) Is the antenna signal normal? (2) Is the tuner and intermediate-frequency circuit power supply working normally?
5.4.9
On the Screen only a Bright Horizontal Line is Visible. Analysis and repair action: check if the electrical contacts in the vertical deflection loop are all right. Next, check if the vertical deflection IC gets its normal power supply of +12.5V and 12.5V. If no voltages of these values are present, check current limiting resistance R321. It may also be the case that the
Service Modes, Error Codes, and Fault Finding
vertical deflection IC has a defect if the voltages are lower than they should be. In this case, replace the IC. If this has no effect, replace C310,C320 and so on. 5.4.10 Poor Picture and Sound Quality. · · Check if the signal line contact is good. Next, use a conductor to touch the IF output of the tuner, if no effect is observed the problem is suspected to be in the IF amplification circuit. Use a 0.01 uF capacitance to short the input and output terminals of SAW101 to isolate if the SAW filter is faulty. If the picture and sound condition does not improve, check the AGC circuitry.
SK2.0A CA
5.
EN 9
·
5.4.11 Soft Volume can still be Heard, even when Volume Level is reduced to "0". · Analysis and repair action: check if the peripheral network connected to pin 63 (MUTE) of IC401 makes good contact. If this part works normally, check IC 401 (audio control/ power-amplifier module), and check if C407 has bad contacts or has leaked its internal liquid. This may also cause problems in the filtering function of IC401 or in the audio switch control module part of IC 405. Also check the peripheral coupling capacitances for defects. The module is controlled by I2C, so it can be checked if the I2C bus is working normally or shows overloading problems. Replace IC405 if needed.
5.4.12 No Colour in AV state · Analysis and repair action: it is likely that the problem lies in the colour decodet part. First, check the video input module (IC402). Secondly, check pin 5 of IC201: is the system switch signal normal? Next, check if the components Z202, Z203 and Z204 are defect. Finally, check whether IC201 has a defect.
EN 10
5.
SK2.0A CA
Service Modes, Error Codes, and Fault Finding
Personal Notes:
E_06532_012.eps 131004
Block Diagrams, Test Point Overviews, and Waveforms
SK2.0A CA
6.
11
6. Block Diagrams, Test Point Overviews, and Waveforms
Block Diagram Chassis
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
B A N D CO N T R OL
A9
AV B OA R D
A5
VO LO RO V U Y NC GND V2 L2 R2 Y C GND V1 L1 R1
CPU CONT R OL
V CC
VT SY STEM
R 007 IC102 6 1 2 3 7 CR Y STA L SCL CE 0 CE 1 CE 2 WC 24C08 R 014 R 015 SDA
R 008
KEY1 KEY2 IR IN
5
M001
D
C Y
RESET
VPE
VHS_Y
D
FR ONT C ONT R OL M001
IR OUT
+5
KEY1 KEY2
D
R040
VHS_C
IFVO/SVO 38
TUNER AGC AUDIO.EXT 27 35 AUDIO.OUT 44
+8V
58
59
2 3 10 11 4 5 6 7
8 1 62 63
L ED001
SOUND TRAP
AGC CIRCUIT ENHANCED 80C51 CPU TO DECODER
A3
FR AME DE FL E CT ION
T E MPE RA T U RE PROT E CTO N
R 271
I2C---BUS TRANSCEIVER VST PWM--DAC I/O PORT
NET_3 STAND_BY NET2 MUTE
LOCAL K E Y B OAR D
23 IF IN 24
VISION IF ALIGNMENT--FREE PLCC DEMOD AGC/AFC VIDEO AMP
DEEMPHASIS AUDIO SWITCH
TO H/V SYNC 28
Q212
ROM/RAM
GND
D I F F E REN T I AL I N PU T STA G E
V E RT I CA L O U T PU T
F L Y BA CK G E N E RA TO R
RE F E RE N CE CI RCU I T
CLOSED CAPTION ACQUISITION
B1
OSD DISPLAY
1 HEATE R
CR T
V501 CRT
FM
H302
C? 0. 01uF
2 GND 3
+200V C506
R 529
7
INP
V DR A
6
INN
5
VOUT
4
GND
3
VP2
2
VFB
1
VP1
CVBS
H V
COR R
G B BL
D307 V DR B R 319 +12. 5V
CVBS/Y SVHS_C
IFVO
42 43
38
VIDEO SWITCH VIDEO IDENT VIDEO FILTERS
AGC CIRCUIT NARROW BAND PLL DEMODULATOR
SYNC
R515
R525
R506
EHT
Q507 Q508 Q509 R 521 Q504 Q505 Q506 R 510
R517 R527
Q501 Q502 Q503
R 320
CN301
V DY
R 521 -12. 5V
R508
C
CONTROL
SY ST E M
H201
FILT ER AND SWIT CH CIRCUIT
40 CVBSINT
A4
PAL/NTSC DECODER
BASE BAND DELAY LINE
T UNE R IF
R 111 L 101
R 114
LUMA DELAY PEAKING BLACK STRETCH
CONTR/BRIGHT OSD INSERT CCC WHITE-P. ADJ
51 52 53 49
RO GO BO BCLIN
C
5 GND 4 BO 3 RO 2 GO 1 +8V
Z D501
C504
+8V
R G B
R 110 R 104 Q100 Z D100
50
BLKIN
SCREEN
FOCUS
RF TUNER AGC VT HS B2 B1 VCC IF
C103
R 109 C100
H/V SYNC H.OSC .PLL
SAW101
IF1 IF2
H.DRIVE 2nd LOOP H.SHIFT
V. DRIVER GEOMETRY
RGB/YPrPb INSERT Y RGB/YUV MAT RIX SATURATION U YUV/RGB MAT RIX
V
A8
SOUND A DJUST ING A ND V IDE O SWITC H
LO RO
SDA
SCL 1 2
IC103
V dd
R 101
16 15 V1 V2 CV B S/Y DVD_Y SVHS_Y
Q207
PW M AMPL IFIE R L 101 IC003
R F AGC R 624 +70V
20
SY ST E M
33
Q100Q101
33. 5MHz FIL T E R SW IT CH
33
21
22
36
46 47
48
L2
26
28 30 1 32
C426 C428
7
25 17 16
3 4 5
0 1 2 3 3 0 1 2
14 13 12 11 A0 10
2 TO4 Decoder
T DA9859
PROOFREAD 31
EWD
H.OUT
BAND CONTROL
R 105 VT
FBISO
V. DRIVE
EHTO R/Pr G/Y B/Pb BL
R2 L1 R1
MULTIPLE SOURCE AND MODE SELECTOR
2
6 7 8
E Vee V ss
T C 4052
3 5
V OLUME CONTROL
A1 9
FM
A1
B
STEREO FORCED MONO
BASS CONTROL
TREMBLE CONTROL
MUTE V OLUME BALANCE
18
R OUT
POWER SUPPLY IC602
IC603
R 623 4 3 1 2 C638 C622 GND D613 GND
R 618
IC401INPUT 15 6
Stand_by(from CPU)
L OUT
REFERANCE VOLTAGE
B
9 23 10 29 27
Q603 Q604 D605
CONT ROL CIRCUIT
4
8
T3.15A 250V~
1
4
2
3
L601
L602
2
D611 7 4 C621 R 617 C607
D661
4 C603 GND
D660
1
+135V
C605 C609
F601
R 601
C602 C601
2
3
4
1
D662
3
D663
GND 1
GND
D610
GND GND C624 C626
+70V
A2 L INE
FB ISO +12. 5V -12. 5V
DE FL E CT ION
4 D306
T 603
FBT
!
A6
R OUT MUT E
AUDI O AMPLI FI ER
IC401
4 OUT1+ 1 1 OUT1- 2
T E MPE R AT UR E PR OT E CT ON
R 604
C627
D612 GND 12 R 607 D609 C632
GND C625 7808 1 V in
GND
7805 1 V in
GND
+8V
3
TO VERTICAL
1 C312 R 317 !
+8V
Q409
CN302
HEATER
+5V _U
+5V
2
C322
D
VCC FB
2
Z D601
D304
D605
R 323 2
R 606 GND
C628
C632
GND
C648
L OUT
GND
12
OUT2- 14
GND
3
200V
GND
R 325
C611 R 608 D603 C631 GND D608 GND R 625 +17V GND D607 GND C634 GND R 626
C318
7 +15V
OUT2+ 15
C613 C614
C612
+140V
R 301 R 302
D305
3
7
L V CC + 8V
C635
OPL/SS
R 609
8
STANDBY
R SPEAK ER
R325 Q302 Q301 C304
D301 C303 10 6
S/GND
C615
OCP/DB
D604 GND +5V
DIODE C620
C633 C630
Q303
R 326
E HT O
DRIV ER STAGE
T301
!
R310
GND H. out
R203
! R 306
A
1 2
GND
C306
D300
GND
A
B CL IN
Q200
T H601
C639 DL 601 D? Q601 R 690 GND
L INE OUT PUT CIR CUIT
T H602
CN301
AV 220 CN602
GND GND HDY
D302 L302
G_16540_023.eps 080806
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Block Diagrams, Test Point Overviews, and Waveforms
SK2.0A CA
6.
12
Schematic Overview
Y U V SVHS-C
PTC
Stand-by
Mu te
Net2 H501
R515 15K/2W R510 47 R511 R513 2.2K 270
R516 220/1W Q504 4544 R512 47 C502 390pF R525 15K/2W Q507 4544 Q506 BF422 Q505 BF423 R514 330 R526 220/1W Q509 BF422 Q508 BF423 R524 330
J224 120K
C268 47U/16V C269 GND
J225 10UH
D KEYBOARD CIRCUIT
LED001
STANDBY TUNNER
IFGND U/V
R006 SW007 3K9
R005 SW006 2K4 AV/TV SW003 VOL-
SW000 CLEAR SW002 CH+
R004 1K2
M001 SW005 MENU SW001 CHC001 10nF
3 2 1
IR GND R G B GND
D504 BAV21
+5V R268 10K Q211 C1815 R256 10K R226 100 R240 3.3K R239 3.3K R234 7K5 R261100 R260100 IC201 TDA83731 IRin Standby SCL Mute SDA WF/TBS/BBE VddP Tuning Reset System XTALout Key0 XTALin key1 OscGnd A/D VddC Vss C/P VpE L VddA H Bout VssA Gout SECPLL Rout Vp2 Blanking DECDIG BCLin PH2LF PH1LF B2/Uin Gnd3 G2/Yin R2/Vin DECBG AVL/EWD INSSW2 A VDRB UDOUT/AMOUT CHROMA VDRA CVBS/Y IF1 Gnd1 IF2 CVBSINT IREF Vp1 VSC Tuner AGC IFVO/SVO AUDEEM/SIF1 PLLIF DECSDEM/SIF2 EHTO Gnd2 AUDEXT/QSSO SNDPLL/SIFAGC FBISO AVL/REFO H. out +3.3V
L/H
VT
V+
C400 0.1U/63V
AGC
+8V R114 33 +70V +5VA L100 190319 R106 10K IC003 uPC574
+
1 2 R104 27 3 4 GND C236 220P
IC002 24C08 WP Vdd n.c. A2 Vss PTC SCL SDA
C230 100uF/16V 100n 8 C229 7 6 5 GND R238 100 R237
+5V R231 3K3 R233 7K5
IF
R259 R
R003 3K9
R002 2K4
R001 1K2
R009 R008 100 1K
D506 BAV21
R232 3K3
D503 1N4148 GND R521 47
R523
R
R517 1K/1/2W R527 1K/1/2W R508 1K/1/2W CRT
VOL+
SW004
10
11
1
2
3
5
6
7
8
9
G
R269 22K GND
270
GND C259 C260 J226 0.1uF 0.1uF 100 R235 64 100 GND 63 62 +3.3V L204 Q209C1815 10uH 61 + C223 C224 60 R229 0.01uF R230 100uF/16V C218 C221 59 X201 C220 + 100uF L202 33pF 58 220 0.1uF GND 10uH C217 + C222 57 12MHzC219 33pF 10uF/16V ZD204 CAP L203 10uH GND + C216 56 C215 3V9 100uF/16V 10nF 55 GND 54 GND 53 R228 100 52 R227 100 51 R226 100 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 R223 10K ZD201 8V2 GND
R520 2.2K +5V
R522 47 C503 390pF
B
C507 10uF/250V R519 1M 0.1uF/250V
4 5
1 2 3
G3G2 G1
C106 0.01
R103 3K3
R1023K3
100 C105
R529 220K
47uF/16VR101 10K C110
L101 1uH
+8V
GND R108 56 R110 1K C10010nF Q100 3779 R109 120 C102 0.01
GND
Q101 2SC1815
+5V
R224 ZD200 33K ZENER 1 GND 2 R2252.7K1nC212 /100V 3 4 5 ZD203 8V2 ZD202 8V2 GND
R506 15K/2W R501 47
R503
R115 80 6
C109
+ + +
GND C409 0.1U/63V
R112 10K
GND
B
NET3
CRT AMPLIFY CIRCUIT
D501 GND 1N4148
GND
CN201
GND
INN
VP2
VP3
VP1
INP
IC301
TDA4683AJ
V-OUT
GND +8V C410 100U/16V R415 3K9 GND Q402 C1815 C4050.1U/63V Q208 NPN GND +8V R248 4.7K
+12V C311 200/16V 2 GND
R R385 ZD380 ZENER C382 10UF/16V GND R383 1K Q381 C1815
R208 R209 3K3 C202 0.1U/63V 33K
VDRB
1 2 3 4 5
+8V
C310 100/50V R318 5R6 C320 100n R319 220/2W
R381 470
R380 1K
SVHS-C
Q200 A1015 R267120K C209 2n2 C208 C216 33u/16V 0.1uF R210 220 R213 220K C267 0.22U/63V GND C207 0.01
+
R416 5K1
R382
Q401 C1815
VDRA
Q380 C1815 10K GND
D307BA158 C324 2200/16V R321 2/2W C323 0.01GF D uN J229 C383 1.0K CAP
+8V GND R206 390 C2060.1U/63V R212 100 L200 10UH
Q382 C300 C1015 1UF/16V GND GND
C411 4u7
R404 1K8
GND
R403 4K7
R322 1K8 GND
R320 1K8
Q384 C1815 Q385 C1815 R384 470 C381 1U/16V GND GND
R414 1K2
SDA
SCL
Net3
GND
R422 75 GND
C265 0.1 C266 100U/16V C420 10nF 1 2 IC402 HEF4052 Vdd
0 1 2 3 3 0 1 2
+
CVBS/Y
R421 75 GND P401 S-VHS
FM
+8V +8V GND
C205 100U/16V GND D201 1N4148 R202 R205 100K +12V C201 27K C203 J248 R26433K Q210 1n2 1uF/50V 1015 510 D202 ZD206 1N4148 C264 ZENER ZD205 C262 GND 100U/16V 10V 1U/50V GND R201 27K
R200 470K +8V
System
R317 1/1W
R313 C318 5R6 100n
R314 270/1W
Q383 C1015
GND
GND CN301
6 5 4 3 2 1
SVHS-Y
C419
100uF/16V
16 15 14 13 12 11 10 9
EWD
C401 100U/16V C402 10nF C404 10n C403 100/16V C261 R207 CAP 1K8 GND 4R7 R214 Q204 C1815 C211 100
+
DY
DVD-Y
R425 75 R48075
C412 100uF/16V R419 75 C417 100uF/16V C418 100uF/16V
3 4 5 6 7 8 GND E
H.out CVBS/Y
GND
R215 1K
GND
Video2 R420 75 Video1 R426 75
R429 3.3K
R430 3.3K
FM +5V VDRB VDRA System
R312
+8V R311 100 J201 100 J202 C249 1000pF C2481000pF GND
L302 GND Q203 C1815 Q202 C1815 R219 1K2 GND R204 180 C200 220/16V D302 BA158 R309 8K2/2W 40uH *C305 330n/400V R310 1K /2W
GND
Vee Vss
CN403 Y C ZD002 GND 5V1 GND V1 GND L1 R1 VO LO RO V U Y
C210 10n R217 330
100
100
R222 R220 Q201 C213 C1815 1u/50V 1K 10K GND L201 10uH 220 R216 Z203 XT-6.5 Z202 XT-6.0 GND Z204 XT-5.5 R211 2K2 Q206 C1815 R221 2K2 GND
GND
GND GND GND
SDA
SCL
FM
5V1 ZD003 GND ZD001 5V1
C214 2u2 GND
Q205 C1815 Z201 XT-4.5
R203 220 +140V GND R3030.68/1W C317 47/160V
+
C316 10uF/200V
GND
1 2 4
CN302
2 1 T302 9 GND 11
R439 1K C416 10 C481 C415 10 C480 10 C407 10nF
+8V R405 33K
ZD300 C321 8V2 47p
R3152K 2
R41868
1
D310 BA158
GND C319 n2 2 3 7 C322 680P/500V 6
HV
+8V
Q400 GND C1815 R417 1K R406 22K
GND D303 BA158
12 13
FOCUS
-12.5V +12.5V
PW-GND OUT1+
OUT2+
S-GND
ST-BY
OUT2-
MUTE
GND V2 L2 R2 CN400
10 GND ZD403 ZD402 ZD401 ZD404 5V1 5V1 5V1 5V1 R438 1K GND GND GND ZD409 ZD410 ZD411 5V1 8V2 8V2 IC603 TLP817 GST601 RST601 T601 C602 0.22uF L602 L601 C603 0.22U 4n7/2KV D660 C604 4A8BL C605 4n7/2KV
4A8BL D663 C606 4n7/2KV
GND R316 4 D304 BA158 0.68/1W D306 BA158 R323 5 0.68/1W C312 680P/500V 10 D305 BA158 325 R 0.68/1W C315 680pF/500V
G2
R324 1K
R327 120K
*R326 5.1K Q303 C1815
D308 3V
R329 10K R330
R427 15K GND
R428 15K
R424 15K GND
R423 15K
OUT-
VCC
NC
SCINL P1 MINL CSMO MINR VP SCOUTR GND MOUTR LINR CBR1 CBR2 n.c CTR LOUTR SCL
SCINR P2 AINR CPS1 AINL CPS2 SCOUTL MAD MOUTL LINL CBL1 CBL2 n.c CTL LOUTL SDA
NC
GND
GND
NC
1 2
32 31
VCC
IN2
IN1
GND ZD407 8V2
IC405 TDA9859
GND GND GND ZD408 ZD406 ZD405 8V2 8V2 8V2
IC401 TDA7266
GND C314 100/16V CN401
+
8
GND C328 3n9/100V
C313 0.01uF
C325 56n/250V GND
R328 470 GND
15
14
13
12
10
9
8
7
6
5
4
3
2
11
1
C426 IC602 SE140N C638 0.1uF/100V R640 6K8 D611 RU3AM C622 R622 6K8 1W R623 2K2 1/2W D613 BA158
1
10 10uF 10
3 4 5 6
30 29 28 27 26 25 24
R618 100 1/2W
C427 C428 GND
C429 15n
GND J431 100 C448 10n/100V GND C449
47K/1/6W
R444 10/1/6W R471 47K
R- 1 C445 R+ 2
GND
+ C327 10uF/250V GND
T5A L 250V F601
D614 BA158
2 3
C430 15n C413100uF/16V
C414 10 GND
7 8
4A8BL D662
R601 2M2/1/2W C601 0.22uF VDR601 R607 1M/1W R606 1M/1W R613
R603 20
9 17 16 6
220p/2KV GND D610 FR104 C627 220P/500V C623 0.01uF/500V GND
R617 100K/2W R619 22K R621 0.68 D612 BA158 C232 220uF/25V R257 8R2 R258 68/2W GND C634 1000uF/25V GND C635 0.01uF R626 0.33/2W R625 0.18/2W GND Q603 A1930 R620 1K2 J219 10/2W C225 0.1uF IC202
2 3 1 2 3
9 10 11
R472
L6034A8BL 44mH D661
12
C621 220uF/200V
+140V +70V
ZD604 12V
+8V
C435 10n C436 100uF
R447 0.22uF/63V 1K/1/6W GND C4500.22uF/63V R446 1K/1/6W C431 33n C444 R449 1/16V 1K2
GND
GND
C452 10n/100V 2K/1/6W R470 Q409 C1815 GND
J436
0.01uF/50LV 3 R445 8R2/1/6W L+ 4 C447 0.01uF/50V
+15V
C454 0.01 R452 2.7K
0.18/2W C620 1000/25V C446 22uF/16V GND R450 22K
C609 C607 220uF/450V 4n7/2KV
23 22 21 20 19 18 17
Mu te +140V
R301 8K2 3W R302 8K2 3W C301 0.056uF GND H-DRIVER *T301 R305 2.7K 1/2W C307 2n2/500V Q302 3DD2553 R304 R GND GND *C302 3n9/2KV GND *C304 3n9/2KV *C303 8n2/2KV *C306 22nF/630V D301 BY228 D300 RU4B
Q604 C2230
Q605 2SC1815
Stand-by
C640 0.01uF GND IC203 L7805
GND
R604 12K 1W R605 12K 1W
J606 FB C613 560p/2KV C610 1n5/2KV R610
R608 10/3W
C624 100uF/100V C626 0.01uF/500V GND
C434 33n
GND Q408 A1015 C477 4u7/50V D400 1N4148
12 13
GND
D402 1N4148 +12V R453 33K D403 14148
+5V +8V
C226 0.1uF
C433 5n6 GND
14 15 16
C432 5n6 GND R237 100
17 14
D606 BA158
C443 R448 1/16V 1K2 D401 1N4148
GND D609
RG2Y
+12V
C632 1000uF/16V C648 0.01uF
C476 470/16V
1
1
3K3 IC601 STR9656
BF422
Q606
47 R609
1 18 10 2 11 13
GND
L7808
C628 220P/500V D607 RU4YX
GND C258 C257 C231 330uF/16V 10n 1000uF/16V
H.out Net2 STB
Q301 BF422 J203 100 R616 10uH R306 470 GND GND
C308 680pF/500V
GND
GND
STB +15V +12V +17V +5V
IC400 TDA8945
MODE GND
GND GND
C617
220p/500V D604 BA158 D605 EU1Z R614 2K2
D
VCC
4
ZD601 16V
39K R615
+8V
R441 10K R435 R442 220K 10K C43 R440 C451 10u/86V 1 10K C439 220n GND 47U/16V R437 11K GND R434 2K Q407 2SC1815 R433 680 GND R461 R462 R459 R460 R464 22K 3K 39K 8K2 8K2 100n 100n C455 100n C458 R457 43K 100n C457 100n C460 R458 110K 100n C459 680 R463 C461 10n C466 10/16V C463 1/16V C462 10/16V C456 R455 47K C475 22n 1 FIL OUT C4 30 2 FIL1 C3 29 C444 3 FIL2 0.68/63V 22n GND INL 28 C474 4 C443 BASSINL 27 FIL3 26 C473 5 FIL4 22n 0.68/63V INR 25 6 FIL5 BASSINR 10/16V 7 FIL6 IC408 24 C472 OUTL 8 10/16V FIL7 NJM2192AL OUTR 23 C471 22 9 PCOUT R259 BASSOUT 10K 10 PCIN 21 MODE1 11 TP MODE2 20 R454 10K 12 TP R456 GAINSW 19 10K C469 C468 13 C1 18 VREFIN C470 14 17 10/16V 10/16V C2 VREFOUT 10/16V 15 GND 16 V+ C464 C467 10/16V GND 100/16V C465 10n GND R253 470 J305 100
OCP/FB
GND S
5
C611 0.1
+
C612 47/25V
47
EWD B D A C Net2
J200 100 ZD301 8V2 C309 0.01/50V
R308 75K IC302
R307 6.8/2W
1
*L301 790uH
+
C631 220P/500V GND D608 RU4YX
GND
D603 C615 C616 470p 10uF/160V
4
C440 100n
C326 4.7uF/50V
EU1Z
2 3
+
C629 680P/500V
C633 C630 1000uF/25V 0.01uF
F6300 GND
OUT+
R612 680 R611A 0.33/2W R611 0.27/2W D602 EU1Z
GND
GND
GND
9
8
7
6
5
4
3
2
+17V
C642 470pF/AC250V~400V C641
DL601 D601 1N4148 C636 10uF/16V C651 CN601 CN602
TH601
R690 4K7 D615 1N4148
C639 47uF/16V
R627 330K
C650 10U/16V
470pF/AC250V~400V R632 8M2/1W C637 2.2nF/AC250v~400v GND
C441
C442 10n R436 22K
C425 10/16V GND GND
R C422 C421R432 33n CAP C423 100n
1
J617 68
OUT-
VCC
SVR
IN+
IN-
NC
C614 1nF/100V
12
470/25V ND G
+2
1
_
GND GND
+8V
Q601 0.1U/50V Gnd C1815 Gnd
WOOFER C424 220n
GND
Gnd
TH602
AC220V DEGAUSSING
G_16540_024.eps 300806
CN380
U Y V
7
6
5
4
3
2
1
HEATER
0.1U/63V C104 0.1U/63V
+200V
GND
C107 10uF/16V
22K GND C238 0.1U/63V
IR GND R G B
R502 2.2K
270
R412
R100 68K
C108 10
C234 CAP
Q207 C2216 R245
Q501 4544 R504 47 C501 390pF
Q503 BF422 Q502 BF423 R505 330
D502 BAV21
C505
C103 10nF
GND
C235 220P
GND C512 10uF/250V ZD501 8.2V
SCREEN HV
*R530 2.7/2W
H502
C504 2n2/2KV
R111 680
ZD100 C101 5V1 100nF
+33V
C233 R243 10uF/50V 33K D200 R105 R113 GND 1N4148 33K 33K R24433K
1 2 +5VA 3 R249 1K 4 R2510K 5 6 R246 R247 7 3K3 3K3 8 9 R262 10 100 11 R263 100 12 +8V 13 L205 10uH 14 C240 C241 15 C247 220nF C244 + 100nF 2n2/100v 100uF/16V C245 R252 15K C242 16 2200p 17 1uF/50V 18 GND C250 0.1U/63V SAW101 19 K2978 GND C24610uF/16V 20 21 22 23 24 R254 39K 25 26 C243 0.1U/63V NC1815 27 28 C252 3n3 Q212 22nF C255 29 R265 C253 R 10uF/16V 30 C239 GND R271 R GND GND 31 GND R273 R R272 CAP R255 2.7K 32 R GND C254 C251 +8V 820pF 4.7nF
+ + +
100 R241
100
R242 100
R624 10K
D505 GND 1N4148 R507 220/1W
D507 BA158
1
HEATER GND +200V
Circuit Diagrams and PWB Layouts
SK2.0A CA
7.
13
7. Circuit Diagrams and PWB Layouts
Mono Carrier: Power Supply
1 2 3 4 5 6
A1
D
POWER SUPPLY
A1
IC603 TLP817 GST601 RST601 T601 C638 0.1uF/100V R640 6K8 D611 RU3A M C622 R622 6K8 1W R623 2K2 1/2W D613 BA 158 IC602 SE140N
1
R618 100 1/2W
D
T5A L 250V F601
J611 BA 158 D614 BA 158
2 3
C602 0.22uF L602 L601
C603 0.22U
4n7/2KV D660 C604 4A8BL C605 4n7/2KV
4A8BL D663 C606 4n7/2KV
L6034A8BL 44mH D661
12
R603 20 C609 220uF/450V
C621 220uF/200V R617 100K/2W
GND
+140V +70V
ZD604 12V
4A8B L D662
R601 2M2/1/2W C601 0.22uF VDR601 R607 1M/1W R606 1M/1W
C
9
C607 4n7/2KV
17 16
220p/2KV
GND
0.68/1W
C623 0.01uF/500V
GND
R619 22K R621 C624 0.68 100uF/100V C626 0.01uF/500V D612
GND
Q603 A1930 R620 1K2 J219 10/2W
6
R604 12K 1W R605 12K 1W J606 FB C613 560p/2KV C610 1n5/2KV R610
1
R631 D610 FR104 C627 220P/500V RU3Y D609
Q604 C2230
Q605 2SC1815
Stand-by
C640 0.01uF
GND 1 2 3
17 14
D606 BA 158
GND
+12V
C632
C232 BA 158 220uF/25V R257 C648 0.01uF 8R2 R258 68/2W
C225 0.1uF IC202
2 3
+5V +8V
C
IC203 L7805
GND
R613 3K3 IC601 STR9656 Q606
BF422
D
VC C 4
1
47
R634 R609 0.33/1W
1 18 10 2 11 13
R630 0.33/1W
L7808
ZD601 16V
C617
220p/500V
C628 1000uF/16V 220P/500V
GND GND
C258 C257 C231 330uF/16V 10n 1000uF/16V
C226 0.1uF
GND
39K R615
D604 BA 158 D605 EU1Z D603 EU1Z R614 2K2 R635 0.33/1W
C611 0.1
OCP/FB 5
+
C612 47/25V
47
GND
D608RU4Y X C633 1000uF/25V C630 0.01uF
R625 0.18/2W
+17V +5V
GND
4
R629 0.33/1W
S
C629 680P/500V
2
3
R612 680 R611A 0.33/2W R611 0.27/2W
B
D602 EU1Z
C616 470p
10uF/160V C615
+
C614 1nF/100V
12
GND GND GND
J617 68 C642
B
DL601 C608 0.1U/A C250V D601 1N4148 C651 CN601 Rp
1
470pF/AC250V~400V C641 R627 330K C650 10U/16V 470pF/AC250V~400V R632 8M2/1W C637 2.2nF/AC 250v~400v
GND Gnd
2
Rs
3
C636 10uF/16V Q601 C1815
Gnd
R690 4K7 D615 1N4148
C639 47uF/16V
TH603 18RM
CN602
0.1U/50V
Gnd
SW601
AC 220V DEGA USSING
H602
A
A
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Circuit Diagrams and PWB Layouts
SK2.0A CA
7.
14
Mono Carrier: Line Deflection
1 2 3 4 5 6 7 8
A2
D
LINE DEFLECTION
BCL IN
A2
+8V
Q200 A1015 R267120K C209 2n2 R213 220K
GND
VP 1
C267 0.22U/63V
D
L200 10UH C207 0.01
+
C208 C216 33u/16V 0.1uF D201 1N4148 R26433K D202
R210 220
C205 100U/16V GND
EH TO
+12V
R200 470K
+8V
+
R201
FBISO
27K
C203 1uF/50V ZD206 ZENER
J248 510
C201 Q210 1n2 1015 C264 100U/16V
R202 R205 100K 27K CN301
6 GND 5 4
ZD205 C262 1N4148 10V 1U/50V
GND
3
1
L302 40uH *C305 330n/400V R310 1K /2W
C GND +140V
HEAT ER GND 4 +200V
1 2
NET 3
2
C
R3030.68/1W
R315 22K
1
D310 BA 158
C317 47/160V
+ 2
CN302
T302
9 GND 1 11
ZD300 C321 8V 2 47p
GND
HV
+12V
R R385
C319 2n2
3 7 +8V
GND
D303 BA 158
GND
C322 680P/500V
GND
6 12
FOCUS
-12.5V +12.5V
C314 100/16V
+
C313 0.01uF
0.68/1W 10 C312 680P/500V D305 BA 158 R325 0.68/1W 680pF/500V
8
R324 1K C325 56n/250V
GND
Q303 C1815 R328 470
GND
R382
R316 4 D304 BA 158 0.68/1W D306 BA 158 R323 5
13
G2
R327 120K
*R326 5.1K
D308 3V
R329 10K R330
R383 1K
R381 470
R380 1K
Q380 C1815 10K
GND
C300 1UF/16V
GND GND
Q382 C1015
GND
C328 3n9/100V J229 C383 1.0K CAP Q385 C1815 R384 470 C381 1U/16V
GND GND
Q384 C1815
GND
C315
+ C327 10uF/250V GND
Q383 C1015
B
B
GND
R301 8K 2 3W
+140V
R302 8K 2 3W
C301 0.056uF
GND GND
*C302 3n9/2K V Q302 3DD2553 R304 R
GND GND GND
H-DR IV ER *T301 R305 2.7K 1/2W C307 2n2/500V
GND
*C304 3n9/2K V *C303 8n2/2K V *C306 22nF/630V
GND
D301 BY228 D300 RU 4B
H.out
Q301 BF422 J203 100 R616 10uH R306 470
GND GND
C308 680pF/500V
GND
EWD
A
R253 470
J305 100
J200 100 ZD301 8V 2 C309 0.01/50V
R308 75K IC302
R307 6.8/2W
1
*L 301 790uH
+ A
C326 4.7uF/50V
F6300
GND
CN380
ZD380 ZENE R
C382 10UF/16V
Q381 C1815
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Circuit Diagrams and PWB Layouts
SK2.0A CA
7.
15
Mono Carrier: Frame Deflection
1 2 3 4
A3
D
FRAME DEFLECTION
A3
D
GND
VP2
VP3 2
TDA 4683A J
7
6
5
4
3
1
VP1
IC301
INN INP
V-OUT
C3112200/16V
GN D
VDR B
C310 100/50V R318 5R6 C320 100n R319 220/2W D 307BA158 C324 2200/16V R321 2/2W C323 GN D 0.01uF R313 C318 5R6 100n
VDR A
C
C
R322 1K 8
GN D
R320 1K 8
B
R317 1/1W
R314 270/1W
+ 12.5V -12.5V
B
GN D
CN301
6 5 4 3 2 A 1
DY
A
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1
2
3
4
Circuit Diagrams and PWB Layouts
SK2.0A CA
7.
16
Mono Carrier: Tuner IF
1 2 3 4 5 6
A4
D
TUNER IF
TUNER
A4
D
IFGND 10 7 8 9
AG C
U/ V
L/ H
VT
V+
11
1
2
3
5
6
IF
+8V
R114 33
R104 27 ZD100 C101 5V1 100nF
GN D
+70V +5VA
L100 190319 R106 10K
IC003 uP C574
+
R624 10K
C106 0.01
R103 3K 3
100 C105
R1023K 3
+33V
C
C
C110 47uF/16VR101 10K
C103 10nF
R111 680
L101 1uH
GN D
R108 R110 56 1K
C100 10nF Q100 3779 C102 0.01
Q101 2SC1815
C233 R243 10uF /50V 33K D200 C236 R105 R113 GND 33K 1N4148 220P 33K 33K R244
TUNING
R100 68K
C108 10
C234 CAP C238 0.1U /63V
Q207 C2216 R245 22K
SYST EM
R115 680
C109
+ + +
0.1U/63V C104 0.1U/63V
C107 10uF/16V R109 120
C235 220P
GN D
GN D
GN D
R112 10K
RF AG C
B
GN D L H +8V
B
R248 4.7K Q208 NPN SAW101 K2978
A IF2 IF1 GN D
1 2 3 4 5
A
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2
3
4
5
6
Circuit Diagrams and PWB Layouts
SK2.0A CA
7.
17
Mono Carrier: CPU and Decoder
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A5
IC201 P21
D
CPU AND DECODER
PT C St an d- by Mute Net2
A5
J 224 120K
D
C 268 47U/16V C 269
J 225 10U H
50mV AC, 5mS/div
GND
IC201 P22
IC 002 24C08
1 2 3 WP n. c. A2 Vs s Vd d PT C SC L SD A 8 7 6 5
+5 V
KEY 0
100uF/16V
C 229 100n
GND
R 269 22K R 238 100 R 237
GND
R 240 3.3K
R 239 3.3K
R 234 7K 5 R 261 100 R 260 100
R 231 3K3 R 233 7K5
50mV AC, 5mS/div IC201 P28
GND
4
R241 100
100 R242
100
IC 201 TDA 83731
1 2 Standby SCL SDA Tuning System Key0 key1 A/D Vss C/P L H VssA SECPLL Vp2 DECDIG PH2L F PH1L F Gnd3 DECBG AVL /E WD VDR B VDR A IF1 IF2 IREF VSC Tuner AGC AUDEEM /SIF1 DECSDEM/SIF2 Gnd2 S NDPLL/SIF AGC AVL /REFO IRin Mute WF/T BS/ BBE VddP Rese t XTAL out XTAL in OscGnd VddC Vp E VddA B out G out R out Blanking BCLin B2/U in G2/Y in R2/V in IN SSW2 AUDOUT/AMOUT CHROMA CVBS/Y Gnd1 CVBS INT Vp1 IF VO/SVO PLLIF EHTO AUDEXT/QSSO FBISO H.out 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
J 226 100 R 235 100 L 204 10uH X 201 12MHz C 218 C 220 33pF 0.1uF C 219 33pF L 203 10uH C 221 100uF C 217
C 259 0.1uF
GND
C 260 0.1uF
IR IN
Q 211 C 1815
KEY 1
C 230
R 268 10K
R 256 10K
+3 .3 V
R 232 3K3
+5 V
R 226 100
R 259 R
+8 V +3 .3 V
+5 VA
R 249
1K R 25110K R 246 3K 3 R 247 3K 3 R 262 100
+8 V
3 4 5 6 7 8
Q 209 C 1815
+
+5V
ZD200
GND
TUNING SYSTEM
R 229
C 224 0.01uF L 202 10uH C 215 10n F
+
C 223 100uF/16V
+
R 230 220 ZD 204 3V9
+
R 224 33K ZENER
GND
GND
50mV AC, 2mS/div
C
9 10 11
CA P
C 222 10uF/16V C 216 100uF/16V
1
2 3 4 5
GN D
212 R 225 2.7K 1n C100V /
GND
GN D
IC201 P33
L H
R 263
100
12 13 14
L 205 10uH C 244 100uF/16V
+
C 247 100n F
GND
SAW 101 K 2978
1 2 3 4 5
50mV AC, 10uS/div
IF
R 252 15K 1uF/50V C 250 0.1U/63V GND C 246 10uF/16V
+ +
C 241 2n 2/100v C 245
C 240 220n F
15
R 228 R 227 R 226 R 223
100 100 100 10K ZD 201 8V2 GND
IR GND R G B
CN201
C
ZD 203 8V2 ZD 202 8V2
C 242 2200p
16 17 18 19 20 21 22
U Y V S VHS -C
R 208
+8 V
R 209 3K 3 C 202 0.1U/63V
33K
IC201 P34
R 254 NC1815 Q 212 3n 3 R 265 R C 239 C 253
GND GND
23 24
39K C 243 0.1U/63V C 255 10uF/16V
25 26 27 28 29
+8 V GND
Q200 A1015 C209 2n 2 C208 33u/16V R210 220
R 267 120K R 213 220K
GND
C 267 0.22U/63V
R 206 390 C 206 0.1U/63V R 212 100
L 200 10U H C 207 0.01 C 205 100U/16V
+ 12V +
1V AC, 20uS/div IC201 P38
CA P
R 273
GND
R 271 R R 272 R
30 31 32
C 216 0.1uF
R 200 470K
+
R R 255
+8 V
+8 V
2.7K
GND
GN D
C 251 4.7n F
GND
C 254 820pF
+
FM
+8 V B
C 203 1uF/50V ZD 206 ZENER
J 248 510 ZD205 10V
D201 1N4148 R 264 33K D 202 C 262 1N4148 1U/50V
GND
Q210 1015 C264 100U/16V
C201 1n2
R 202 27K
R 205
100K
GN D
EWD
C 261 CA P R 207 1K 8 R 215 4R 7 R 214
+8 V
R 201 27K
B
FBISO
1V AC, 20uS/div IC201 P40
H.out CVBS /Y FM +5 V VDR B VDR A System
R 312
GND
1K
R 311 100 100
J 201 100 100 J 202
C 249
1000pF C211 100
GND GND +
Q 204 C 1815 C210 10n R 217 330
GND
C 248 1000pF
Q 201 C 1815
GND
C 213 1u/50V L 201 Z 203 XT-6.5 Z 202 XT-6.0 Z 204 XT-5.5
R 222 1K 10uH
R 220 10K
GN D
Q 203 C 1815 Q 202 C 1815 R 219 1K 2
GN D
220 R216
GND
R 204 180 C 200 220/16V
GND
1V AC, 20uS/div
R 211 2K2
GND
IC201 P42
C 214 2u2
GND
Q 206 C 1815 R221 2K2
GND
Q 205 C 1815 Z 201 XT-4.5
R 203 220
GND
VOUT
+8 V
50mV AC, 20uS/div
A
C 407 10n F
R 405 33K Q 400 C 1815 R 417 1K
GND
A
IC201 P50
IC201 P51
IC201 P51-2
IC201 P51-3
GN D
R 406 22K
2V AC, 5mS/div
1 2
50mV AC, 10uS/div
3
50mV AC, 10uS/div
4 5
50mV AC, 10uS/div
6 7 8 9 10 11 12 13 14 15
G_16540_014.eps 310806
16
Circuit Diagrams and PWB Layouts
SK2.0A CA
7.
18
Mono Carrier: Audio Amplifier
1 2 3 4
A6
D
AUDIO AMPLIFIER
IC401 TDA7266
A6
D
OUT2+ PW-GND OUT1+ OUT2S-GND MUTE ST-BY VCC VCC OUT-
IN2
NC
IN1
NC
NC
CN401
15 14 13 12 10 9 8 7 6 5 4 3 2 11 1
GND
R444 10/1/6W R471 47K
R-
1 2 3 4
C448 10n/100V
GND
J431 100
C445 R+ 0.01uF/50V LR445 8R2/1/6W J436 C447 0.01uF/50V L+
C449
C
47K/1/6W
R472
R4470.22uF/63V 1K/1/6W C4500.22uF/63V R446 1K/1/6W C444 R449 1/16V 1K2
C452 10n/100V 2K/1/6W R470 GND Q409 C1815
GND
+17V
C454 0.01 R452 2.7K
C
0.18/2W C620 1000/25V C446 22uF/16V
GND
Mute
R450 22K D402 1N4148 +12V R453 33K D40314148
LOUTL
GND
GND
Q408 A1015
B
C443R448 1/16V1K2 D401 1N4148 D400 1N4148
C477 4u7/50V
B
C476 470/16V
Net2 STB
LOUTR
A
A
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34
Circuit Diagrams and PWB Layouts
SK2.0A CA
7.
19
MC: Sound Adjusting and Video Switch
1 2 3 4 5 6 7 8
A8
D
SOUND ADJUSTING AND VIDEO SWITCH
+8 V
A8
D
C410 100U /16V R415 3K 9
GND
Q402 C1815 R416 5K 1 Q401 C1815 C4050.1U /63V
V
R403 4K 7
C411 4u7 C400
R404 1K 8
GND
Y
0.1U /63V
R414 1K 2
GND
R412
C409 0.1U /63V R421 75
R422 75
GND
SVHS-C
C265 0.1 C4 20 10n F
U
GND
IC4 02 HEF 4052
1 2 Vd d 16 15 0 3 4 1 2 3 3 5 6 12 11 10 9 0 1 2 14 13
CVBS/ Y
C266
100U /16V
+8 V
SVHS- Y
C419
100uF /16V
P401
S-VH S DV D- Y
R4 25 75 R4 8075
C401 100U /16V
C412 100uF /16V R419 75 C417 100uF /16V C418 100uF /1 6V
C4 02 10n F
C404 10n
C403 100/ 16V
GND
GND
Vi deo2 R420 75 Vi deo1 R426 75
C
E Ve e Vss
R4 29 3.3K
R4 30 3.3K
GND
C
7 8 GND
CN403 Y C GND V1 L1 R1 VO LO RO V U Y
GND
GND
ZD 001 5V 1
R418 68
FM
GND
SD A
SCL
ZD 002 5V 1
5V 1 ZD 003
TO Q 400
R439 1K C416 10 C481 C415 10 C480 10
B
GND V2 L2 R2 CN400
10
GND
ZD 403 ZD 402 ZD 401 ZD 404 5V 1 5V 1 5V 1 5V 1
R438 1K
GND GND GND
R427 15K
GND
R428 15K
GND
R424 15K
GND
R423 15K
B
GND GND GND GND
GND
ZD 407 8V 2
IC 405 TD A 9859
1 2 SC IN L P1 MI NL CSMO MI NR VP SC OU TR GND MO UT R LI NR CBR1 CBR2 n.c CT R L OUT R SC L S n C L TL OUT L DA M S CI NR P2 AIN R CP S1 AIN L CP S2 SC OUT L MA D OU TL LI NL CBL 1 CBL 2 .c 23 22 21 20 19 18 17 32 31 30 29 28 27 26 25 24
ZD 408 ZD 40 6 ZD 40 5 8V 2 8V 2 8V 2
ZD409 ZD410 ZD411 5V1 8V2 8V2
C4 26 C427 C4 28
GND
10 10uF 10
3 4 5 6
C429 15n
C430 15n C413 100uF /16V
C4 14 10
7 8
TO T DA 7266
GND
+8 V
C435 10n
GND
GND
C436 100uF C434 33n
9 10 11 12 13
C431 33n
C444 R449 1/ 16V 1K 2
C4 33 5n6
GND
14 15
C4 32 5n6
GND
C443 R448 1/ 16V 1K 2
A
16
R237 100
A
G_16540_017.eps 300806 1 2 3 4 5 6 7 8
Circuit Diagrams and PWB Layouts
SK2.0A CA
7.
20
Layout Mono Carrier (Top Side)
G_16540_019.eps 080806
Circuit Diagrams and PWB Layouts
SK2.0A CA
7.
21
Layout Mono Carrier (Bottom Side)
G_16540_020.eps 310806
Circuit Diagrams and PWB Layouts
SK2.0A CA
7.
22
CRT Panel
1 2 3 4
B
D
CRT CIRCUIT
R 515 15K /2 W R 510 47 R 511 2.2K
GN D
B
R 516 220/1W Q504 4544 R 513 270 R 512 47 C 502 390pF R 525 15K /2 W R 521 47 R 520 2.2K Q507 4544 Q506 BF422 Q505 BF423 R 514 330 R 526 220/1W Q509 BF422 Q508 BF423 R 524 330 D504 B AV2 1
D
H 501
IR GND R G B
D503 1N4148
GN D
R
D506 BAV21
R 517 1K /1/2 W R 527 1K /1/2 W R 508 1K /1/2 W CRT
C
C
G
R523
R 522 47 C 503 390pF
270
B
C 507 10uF/250V R 519 1M 0.1uF/250V
G3 G2 G1
GN D
D505 1N4148
D507 BA158
R529 220K
B
R 506 15K /2 W R 501 47
Q501 4544
Q503 BF422 Q502 BF423 R 505 330
D502 B AV2 1
C504 2n2/2K V
C505
R 507 220/1W
B
GN D
GN D
R503
270
R 502 2.2K
+200V
GN D
D501 1N4148
GN D
A
HEATER
GND
R 504 47 C 501 390pF
C 512 10uF/250V ZD501 8.2V
SCREEN
HV
*R530 2.7/2W
H 502
A
G_16540_018.eps 300806 1 2 3 4
Circuit Diagrams and PWB Layouts
SK2.0A CA
7.
23
Layout CRT Panel (Top Side)
Layout CRT Panel (Bottom Side)
G_16540_008.eps 080806
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Circuit Diagrams and PWB Layouts
SK2.0A CA
7.
24
Keyboard Panel
1 2 3 4
D
D
KEYBOARD
D
D
KEYBOARD CIRCUIT
STANDBY R006 SW007 3K9 R005 SW006 2K4 AV/TV SW000 CLEAR SW002 CH+ R001 1K2 R004 1K2 M001 SW005 MENU SW001 CHC001
LED001
3 2 1
C
VOL+
SW004
SW003 R003 VOL- R002 3K9 2K4
10nF
C
R009 R008 100 1K CN003
GND +5V
A
G_16540_016.eps 300806
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1 2 3
B
B
A
1
2
3
4
Circuit Diagrams and PWB Layouts
SK2.0A CA
7.
25
Layout Keyboard Panel (Top Side)
G_16540_006.eps 070806
Layout Keyboard Panel (Bottom Side)
G_16540_007.eps 070806
Circuit Diagrams and PWB Layouts
SK2.0A CA
7.
26
Side AV Panel
Personal Notes:
E
R421 75 GND P401
SIDE AV PANEL
SDA
C265
0.1
C420 10nF
SVHS-Y
C419
100uF/16V
1 2
IC402 HEF4052 Vdd
0 1 2 3 3 0 1 2
16 15 14 13 12 11 10 9
S-VHS DVD-Y
R425 75 R48075
C412 100uF/16V R419 75 C417 100uF/16V C418 100uF/16V
3 4 5 6 7 8 GND E
GND
Video2 R420 75 Video1 R426 75
GND
Vee Vss
CN403 Y C ZD002 GND 5V1 GND V1 GND L1 R1
5V1 ZD003 GND ZD001 5V1
CVBS/Y
C266 100U/16V
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Layout Side AV Panel (Top Side and Bottom Side)
G_16540_022.eps 080806
SCL
System
E_06532_012.eps 131004
Alignments
SK2.0A CA
8.
EN 27
8. Alignments
Index of this chapter: 8.1 General Alignment Conditions 8.2 Hardware Alignments 8.3 Software Alignments 8.5 Option Settings
8.4
Factory Mode Specification Adjustment
Notes: · Attention: of each menu item, first make a note of the current value; secondly, note the minimum/maximum value of the range that can be adjustend. · (default value / adjustment range) - this item must be set up to its default value within the possible range; · (reference value) - this item can depend on the production circumstances and the product parameters (which may show slight variations), so only reference values are given here; · (unnecessary to adjust) - this item is unnecessary to adjust. The factory mode includes 11 periphery menus and 4 core menus. You must input the code "789" in the eleventh periphery menu if you want to enter the last two core menus. The switching between the periphery menus takes place using the PRO key "+"and "-". The switching between the core menus is done via the "MENU" key. All the values found in the various menu items can be adjusted via the VOL key ("+"and "-"). The values found in the Core menu must be adjusted via the PRO key ("+"and "-"). Adjustment details are given below. Press the factory mode key to enter the factory mode. The PRO key "-" will give the opposite result, you will then leave the factory mode again. · Brightness balance RED adjustment menu (press key "1" to enter this menu) WPR - 23 / 00-3F (default value / adjustment range) Brightness balance GREEN adjustment menu (press key "2" to enter this menu) WPG - 1F / 00-3F (default value / adjustment range) Brightness balance BLUE adjustment menu (press key "3" to enter this menu) WPB - 2B / 00-3F (default value / adjustment range) Dark balance RED adjustment menu (press key "4" to enter this menu) RED - 1F / 00-3F (default value / adjustment range) Dark balance GREEN adjustment menu (press key "5" to enter this menu) GRN - 22 / 00-3F (default value / adjustment range) RFAGC adjustment menu: RFAGC - 0B / 00-3F (default value / adjustment range)
8.1
8.1.1
General Alignment Conditions
Default Alignment Settings Perform all electrical adjustments under the following conditions: · Power supply voltage: 230 VAC / 50 Hz (± 10 %). · Connect the set to the mains via an isolation transformer with low internal resistance. · Allow the set to warm up for approximately 20 to 30 minutes. · Measure voltages and waveforms in relation to chassis ground (with the exception of the voltages on the primary side of the power supply). Caution: never use heatsinks as ground. · Test probe: 100 : 1, Ri > 10 Mohm, Ci < 3.5 pF. · Use an isolated trimmer/screwdriver to perform alignments.
8.2
Hardware Alignments
Note: The only hardware alignment in this TV set is the adjustment of the main voltage (B+), see below.
8.2.1
Main Voltage Adjustment In order to adjust the main voltage, connect a voltage meter to J601, and adjust VR601 to a voltage of 110 V.
·
·
8.3
Software Alignments
Put the set in its MENU mode (factory mode or otherwise) as follows (see also figure "Factory Mode" on the next page): · Set the volume to "0" via the volume button on the TV set. · Select the [i+] button on the RC while depressing the volume key. · Use the "up" or "down" button on the RC to navigate to a different Peripheral Menu, if necessary. · Use the "MENU" button on the RC to navigate to a different Core Menu, if necessary. · Press the "MENU" button on the RC to switch from the Peripheral Menu to the Core Menu. · Press the "6" button on the RC to switch from the Core Menu to the Peripheral Menu. · In the Peripheral Menu (after pressing "6"), enter the code "789" will make available the extra four core Menu blocks PE-1, PE-2, PE-3 and EP2-WRITE for editing. Press the "MENU" button on the RC to switch from the Peripheral Menu to the Core Menu, using MENU key to navigate through the available 6 core menu blocks. The different alignment parameters are described further on.
·
·
·
Adjustment method: First, receive a video signal of 60 dBµV; next, enter the factory mode and adjust the level of the RFAGC, until the image is completely noise-free (without snowflakes). · Decode block audio signal output extent adjustment menu: VOL - 2F / 00-3F (default value / adjustment range) · Aging mode menu: AGING · SCREEN adjustment menu (make sure you have set the VG2-B item of the core menu PE-2 to 3F before you adjust this item) VG2: IS OK Adjustment method: Receive a video signal of any content, then set the Brightness and Contrast values of the image menu at their middle positions (level 50). · Adjustment of the screen voltage of the horizontal output transformer: make sure the screen displays the message VG2: IS OK · Code input menu (press key "6" will enter the menu quickly): P-MOD_ _ _
8.3.1
Geometry Notes: · Set an external pattern generator to a crosshatch video signal and connect the RF output to the aerial input of the TV. Set the amplitude at least 1 mVRMS (60 dBµV) and the frequency to 475.25 MHz. Use system PAL B/G if possible, otherwise match the system of your generator with the received signal in the set.
EN 28
8.
SK2.0A CA
Alignments
Enter factory mode: 1. Set volume to "0" with the volume button on the set. 2. Select "i+" button on RC while depressing the volume key. 3. Select "up" or "down" button to navigate to different peripheral menu 4. Select "MENU" key to navigate to different core menu. 5. Switch from peripheral menu to core press "Menu" key. 6. Switch from core to peripheral menu press "6". 7. Enter code "789" at the peripheral menu after pressing "6" or scroll to the menu in the red box below
Periphery menu "up" and "Down" Key Main core menu "Menu" key Additional core menu after the "789" code
CPU: 5P36-6216-46K-EEP:
"MENU"
STS STS STS STS
: 01010001 : 10000110 : 01111111 : 11110111
Arrow "UP" and "DOWN"
CORE MENU SER50HZ HPOS H-AMP V-SLP V-POS V-AMP V-SC Press "6" 1F 2D 2A 25 19 20 3F 3F 3F 3F 3F 3F
PERIPHERAL MENU CPU: 5P36-6216-46K-EEP: P-MOD Press "Menu" CPU: 5P36-6216-46K-EEP: GRN 22 00-3F 00100010
SER50HZ EWPA TRAP PARA UCP BCP BOW
20 21 12 24 20 24
3F 3F 3F 3F 3F 3F
P-MOD
CPU: 5P36-6216-46K-EEP: RED 1F 00-3F 00011111
VGS : OUTSIDE HIGH
Extra Core Menu after code "789" is entered
PE-1 OP1 OP2 OP3 OP4 OP5 OP6 YDTP YDAV S-COLOR S-SHARP
CPU: 5P36-6216-46K-EEP: 73 28 11 3B 2B 05 07 07 21 25 FF FF FF FF FF FF 0F 0F 3F 3F AGING
CPU: 5P36-6216-46K-EEP: WPB 2B 00-3F 00101011
PE-2 V-FOR VX OSD-BRI OSD-H 5VOSD VG2-B RPO-D CL AS-SB INIT
CPU: 5P36-6216-46K-EEP: 03 3F 19 3F 00 03 C4 CF 2F 32 20 3F 3F 3F 09 0F 06 FF 00 FF VOL 2F 00-3F 00001011
CPU: 5P36-6216-46K-EEP: WPG 1F 00-3F 00011111
PE-3 CURVES1 CURVE2 CURVE3 CURVE4 CURVE5
CPU: 5P36-6216-46K-EEP: 0D 21 28 2F 39 3F 3F 3F 3F 3F RFAGC 0B 00-3F 00001011
CPU: 5P36-6216-46K-EEP: WPR 23 00-3F 00100011
E2P-WRITE BANK INDEX DATA WRITE
00 03 00 FF 00 FF
G_16540_025.eps 290806
Figure 8-1 Factory Mode
Alignments
After entering the code "789" and pressing the "menu" key, the core menu will be displayed orderly, or only 2 core menus will be displayed. The content of the core menu is given below: i. Press key "menu" to display the core menu as below: · Horizontal parameter adjustment menu (Before adjusting the items of this menu, receive the pane signal or P-card signal, then enter the factory mode to start adjustment) i. SER50HZ. ii. H-POS 1F 3F (reference value) Horizontal center. iii. H-AMP 2D 3F (no value) Horizontal amplitude. iv. V-SLP 2A 3F (reference value) Vertical slope. v. V-POS 25 3F (reference value) Vertical center. vi. V-AMP 19 3F (reference value) Vertical amplitude. vii. V-SC 20 3F (reference value) Vertical linearity. The above items are all ordinary parameter adjustments. It is unnecessary to explain those in detail. However, pay attention to the fact that the NTSC and PAL Vertical parameter adjustments of this chassis must take place separately from each other. · Linearity adjustment menu: (the adjustment of the items under this menu is unnecessary) i. SER50HZ. ii. EWPA 20 3F. iii. TRAP 21 3F. iv. PARA 12 3F. v. UCP 24 3F. vi. BCP 20 3F. vii. BOW 24 3F. Character position, SPK system etc. adjustment menu: (Attention:OP1 and OP2 are different from each other depending on different modes). Attention: The menu given below can only be entered when the code "789" is input in the eleventh periphery menu. · PE-1 i. OP1 as below 73 / 00 - FF (default value / adjustment range) Switch setup of video control, commutative flat. etc. ii. OP2 as below 28 / 00 - FF (default value / adjustment range) Switch setup of SPK system, menu mode. etc. iii. OP3 11 / 00 - FF (default value / adjustment range) Switch setup of Vertical protection, super incept. etc. iv. OP4 38 / 00 - FF (default value / adjustment range) rest of setup v. OP5 2B / 00 - FF (default value / adjustment range) rest of setup vi. OP6 05 / 00 - FF (default value / adjustment range) rest of setup vii. YDTP 07 0F TV PAL brightness and delay. Note: N system: YDTN (07 - 0F). viii. YDAV 07 0F (default value / adjustment range) AV brightness and delay. ix. S-COLOR 21 3F (default value / adjustment range) subcolor modulation x. S-SHARP 25 3F (default value / adjustment range) sub-definition modulation. Below are the setups of OP1 and OP2 for different modes: · 2122MK - 21NKMS - 21TNMS i. OP1 C2 - CE - DE ii. OP2 C2 - C2 - CA · Character position (5VOSD and OSD-H) adjustment method: Adjust the parameters, make sure the "channel switch" menu is at the center of the screen. The value of the parameters is the reference value that was provided by the RAM, it is unnecessary to adjust this in general. · Blueness screen frequency, RGB output extent adjustment menu, PE-2 i. V-FOR 03 / 3F (default value / adjustment range) No signal vertical frequency. ii. VX 19 / 3F (unnecessary to adjust) 16 : 9 Vertical amplitude
SK2.0A CA
8.
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·
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iii. OSD_BRI 00 / 03 (default value / adjustment range). OSD brightness adjustment. iv. OSD-H C4 / CF (default value / adjustment range). OSD horizontal position adjustment v. 5VOSD 2F / 32 (default value / adjustment range). OSD vertical posiont adjustment vi. VG2-B 20 / 3F (default value / adjustment range) Screen adjustment. vii. RPO-D 00 / 3F (default value / adjustment range) MSB 4 bits - RPO adjustment LSB 4 bits - Dynamic Noise-reduction adjustment viii. CL 09 / 0F (default value / adjustment range) RGB output extent. ix. AS-SB 06 / FF (unnecessary to adjust) MSB 4 bits - AV sharpness compensation LSB 4 bits - AV brightness adjustment x .INIT 00 - FF (pressing +/-VOL starts initialisation; Replaces all factory settings (if value = FF: initialisation finished; all values are restored to default values. If necessary, default values can be changed manually. If a new memory chip is installed, the TV set should be