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Color Television
Chassis
SK4.1L
CA
H_17210_000.eps 070607
Contents
Page
1. Technical Specifications, Connections, and Chassis Overview 2 2. Safety Instructions, Warnings, and Notes 4 3. Directions for Use 5 4. Mechanical Instructions 6 5. Service Modes, Error Codes, and Fault Finding 7 6. Block Diagrams, Test Point Overview, and Waveforms Block Diagram Chassis 9 Schematic Overview Chassis 10 7. Circuit Diagrams and PWB Layouts Diagram Mono Carrier: Power Supply (A1) 11 Mono Carrier: Line Deflection (A2) 12 Mono Carrier: Frame Deflection (A3) 13 Mono Carrier: Tuner (A4) 14 Mono Carrier: AV Switch (A5) 15 Mono Carrier: Audio Amplifier (A6) 16 Mono Carrier: CPU & Decoder (A7) 17 CRT Board (B) 20 BTSC and Tone Control Panel (K) 22 8. Alignments 25 9. Circuit Descriptions, Abbreviation List, and IC Data Sheets 31 Abbreviation List 32 IC Data Sheets 33 10. Spare Parts List 46 11. Revision List 49
PWB 18-19 18-19 18-19 18-19 18-19 18-19 18-19 21 23
© Copyright 2008 Koninklijke Philips Electronics N.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 JY 0864 BU CD Consumer Care
Printed in the Netherlands
Subject to modification
EN 3122 785 17890
EN 2
1.
SK4.1L 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 (Mechanical chassis) Note: Data below can deviate slightly from the actual situation, due to the different set executions.
1.2
Connection Overview
Note: The following connector color 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 Connections
1.1
1.1.1
Technical Specifications
Vision Display type Screen size Tuning system TV Color systems Video playback : : : : : : : : : : CRT 14" (37 cm), 4:3 21" (55 cm), 4:3 PLL NTSC, PAL M/N NTSC, PAL (all versions) PAL 50 181 channels VHF UHF
I_17890_001.eps 260308
Figure 1-1 Front Connections Mini Jack: Audio Head phone - Out Bk - Head phone 32 - 600 ohm / 10 mW 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 1.2.2 Rear Connections
ot
Presets/channels Tuner bands
jq jq jq
1.1.2
Sound Sound systems Maximum power (WRMS) : FM-stereo, SAP : 2×3
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) Dimensions (W × H × D mm)
: 90 - 260 : 50 / 60
: -5 to +45 : 90% R.H.
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: 38 (14") : 72 (21") : <1 : 450 × 348 × 375 (14") : 594 × 462 × 486 (21") : 9 (14") : 21.5 (21")
Figure 1-2 Rear Connections Aerial - In - - F-connector
Coax, 75 ohm
D
Weight (kg)
Monitor 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 AV1 Cinch: Video YPbPr - In (21" only) Gn - Video Y 1 VPP / 75 ohm Bu - Video Pb 0.7 VPP / 75 ohm Rd - Video Pr 0.7 VPP / 75 ohm AV1 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
jq jq jq
Technical Specifications, Connections, and Chassis Overview 1.3 Chassis Overview (Mechanical chassis)
SK4.1L CA
1.
EN 3
B
A1 A2 A3 A4 A5 A6 A7
K
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Figure 1-3 PWB locations
EN 4
2.
SK4.1L 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. Be careful during measurements in the high voltage section. Never replace modules or other components while the unit is switched "on". When you align the set, use plastic rather than metal tools. This will prevent any short circuits and prevents circuits from becoming unstable.
· · ·
2.4
2.4.1
Notes
General · Measure the voltages and waveforms with regard to the chassis (= tuner) ground (H), or hot ground (I), depending on the tested area of circuitry. The voltages and waveforms shown in the diagrams are indicative. Measure them in the Service Default Mode (see chapter 5) with a color bar signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated otherwise) and picture carrier at 475.25 MHz for PAL, or 61.25 MHz for NTSC (channel 3). Where necessary, measure the waveforms and voltages with (D) and without (E) aerial signal. Measure the voltages in the power supply section both in normal operation (G) and in stand-by (F). These values are indicated by means of the appropriate symbols. The semiconductors indicated in the circuit diagram and in the parts lists, are interchangeable per position with the 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:
·
·
Directions for Use
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.
SK4.1L CA
3.
EN 5
·
· · · ·
Number; e.g. 28PW9515/12) but which have a different B.O.M. number. By looking at the third digit of the serial number, one can identify which B.O.M. is used for the TV set he is working with. If the third digit of the serial number contains the number "1" (example: AG1B033500001), then the TV set has been manufactured according to B.O.M. number 1. If the third digit is a "2" (example: AG2B0335000001), then the set has been produced according to B.O.M. no. 2. 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. Identification: The bottom line of a type plate gives a 14-digit serial number. Digits 1 and 2 refer to the production center (e.g. AG is Bruges), digit 3 refers to the B.O.M. code, digit 4 refers to the Service version change code, digits 5 and 6 refer to the production year, and digits 7 and 8 refer to production week (in example below it is 2006 week 17). The 6 last digits contain the serial number.
MODEL : 32PF9968/10
MADE IN BELGIUM 220-240V ~ 50/60Hz 128W VHF+S+H+UHF
2.4.3
Lead-free Soldering Due to lead-free technology some rules have to be respected by the workshop during a repair: · Use only lead-free soldering tin Philips SAC305 with order code 0622 149 00106. If lead-free solder paste is required, please contact the manufacturer of your soldering equipment. In general, use of solder paste within workshops should be avoided because paste is not easy to store and to handle. · Use only adequate solder tools applicable for lead-free soldering tin. The solder tool must be able: To reach a solder-tip temperature of at least 400°C. To stabilize the adjusted temperature at the solder-tip. To exchange solder-tips for different applications. · Adjust your solder tool so that a temperature of around 360°C - 380°C is reached and stabilized at the solder joint. Heating time of the solder-joint should not exceed ~ 4 sec. Avoid temperatures above 400°C, otherwise wear-out of tips will increase drastically and flux-fluid will be destroyed. To avoid wear-out of tips, switch "off" unused equipment or reduce heat. · Mix of lead-free soldering tin/parts with leaded soldering tin/parts is possible but PHILIPS recommends strongly to avoid mixed regimes. If this cannot be avoided, carefully clear the solder-joint from old tin and re-solder with new tin.
PROD.NO: AG 1A0617 000001
S
Figure 2-2 Serial number (example) 2.4.5
BJ3.0E LA
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Board Level Repair (BLR) or Component Level Repair (CLR) If a board is defective, consult your repair procedure to decide if the board has to be exchanged or if it should be repaired on component level. If your repair procedure says the board should be exchanged completely, do not solder on the defective board. Otherwise, it cannot be returned to the O.E.M. supplier for back charging!
2.4.6
Practical Service Precautions · It makes sense to avoid exposure to electrical shock. While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard. Always respect voltages. While some may not be dangerous in themselves, they can cause unexpected reactions that are best avoided. Before reaching into a powered TV set, it is best to test the high voltage insulation. It is easy to do, and is a good service precaution.
2.4.4
Alternative BOM identification The third digit in the serial number (example: AG2B0335000001) indicates the number of the alternative B.O.M. (Bill Of Materials) that has been used for producing the specific TV set. In general, 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 suppliers. This will then result in sets which have the same CTN (Commercial Type
·
3. Directions for Use
You can download this information from the following websites: http://www.philips.com/support http://www.p4c.philips.com
EN 6
4.
SK4.1L CA
Mechanical Instructions
4. Mechanical Instructions
Index of this chapter: 4.1 Set Disassembly 4.2 Set Re-assembly Note: Figures below can deviate slightly from the actual situation, due to the different set executions. 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.
4.1
Set Disassembly
Follow the disassemble instructions in described order.
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Figure 4-1 Rear Cover removal
4.2
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 positioned correctly in its guiding brackets (make sure that the strain reliefs are replaced in its correct position and that it will function correctly!). · All wires/cables are returned in their original positions.
Service Modes, Error Codes, and Fault Finding
SK4.1L CA
5.
EN 7
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 5.4.6 Picture not or incorrect Colored · · Check the circuit from IC102 to R.G.B. three gun circuit. Check the IC soldering and relevant circuitry on physical damage or check for defective capacitors.
5.1
Test Points
See chapter 6 "Block Diagrams, Testpoint Overviews, and Waveforms". Perform measurements under the following conditions: · Service Default Mode. · Video: color bar signal. · Audio: 3 kHz left, 1 kHz right.
5.4.7
Picture with Horizontal Bright Line and Sound Check both supply voltages of vertical IC351 and relevant circuitry on correctness. Also check the vertical synchronizing signal from IC201.
5.4.8
Remote Control Malfunction Check the voltage on pin 64 of IC102. The normal value should be 5.15 V. If this is correct check front control panels soldering connections. If can't be solved, check the remote control, crystal or transmitting diode of the remote control are in good condition.
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.
5.4.9
No Sound Check power supply of sound IC (IC401) and relevant circuitry. Check as well the BTSC board, check the power supply of IC801 and relevant output signal pins 21 and 27 of this IC. Do not exclude IC801 and/or IC401 to be defective. If needed replace the speakers.
5.3
Error Codes
Not applicable.
5.4
5.4.1
Fault Finding
Power on Failure Check whether the power supply is working properly and whether the values of voltages normal. If those are correct, check line transistor and transformer are working properly or check fore or back line for defects.
5.4.10 Poor Sound Quality Check the sound system after searching the channel which should set at NTSC or AUTO. If still has problem, check accompany board circuit on chassis good or not.
5.4.2
Horizontal Deflection Transistor Defective: No Picture, No Sound. To find the fault for a defect horizontal deflection transistor please check the following items: · Over voltage to breakdown. · Over current to burn. · Horizontal frequency too low. · Horizontal drive inefficient.
5.4.3
Picture Interference · · Check if the signal line contact is good. Change Tuner if is necessary.
5.4.4
Can't find any TV program Checking method: Check the closed circuit from tuner to picture decoder IC to detect whether there are defective components. Or check whether the resistance of R201, R202, C204 and R204 has increased which also could cause the problem.
5.4.5
No Good Picture or Double Image Check the correctness of the signal from IF to Q201 and relevant circuit. In this case the problem can be Q201 and/or SAW101.
EN 8
5.
SK4.1L CA
Service Modes, Error Codes, and Fault Finding
Personal Notes:
E_06532_012.eps 131004
Block Diagrams, Test Point Overview, and Waveforms
SK4.1L CA
6.
9
6. Block Diagrams, Test Point Overview, and Waveforms
Block Diagram Chassis
1 2 3 4 5 6
Y ANTENNA SCART 1 V in
U
V
AUDIO REAR AV V L R
G
FRONT AV V L R S-VHS Y C V AV OUT L R
D
D
A7
V R GB AV2 SW AV1 SW AV3 SW
L
R
AV-SW 4052
13
L R
CVBS OUT
4 62 63 AV in FS TUNER
C in
FM
1 3 12 10 9 4 11
TONE CONTROL
15 2 5 14
A5
A6
L
AMP-TDA9841/9842/9843
SPL
R
SPR
C
A4
IF
IF AMP
SAW101
IF
SCL SDA
KEY CONTROL
PHILIPS UOC2 TDA93XX/N3
6 KEY 7 10 I/O 44 5
SCL SDA
SCL
SDA
K
MTS/A2/NICAM R G B IK
C
B
R OUT G OUT B OUT
D
PWM CONTROL AUDIO VOL MUTE AUDIO OUT SCART ID
21" CRT
CRT BOARD
A8
B
B
SCL SDA
V--DY
A3
POWER
90V-260V
+110V FOR B+ +43V
V AMP TDA4863AJ
24C08
H--DY
SW
CQ0765
+8V FOR UOC +12V FOR MAIN +20V FOR AMP
+12V
-12V
3DD5023
A1
A
H DRIVE
A2
A
DEG COIL
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1
2
3
4
5
6
Block Diagrams, Test Point Overview, and Waveforms
SK4.1L CA
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10
Schematic Overview Chassis
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Circuit Diagrams and PWB Layouts
SK4.1L CA
7.
11
7. Circuit Diagrams and PWB Layouts
Mono Carrier: Power Supply
1 2 3 4
A1
D
POWER SUPPLY
A1
D
D602 RL601 DC12V
14148
R604 220 1nF AC250V C603 Q601 C1815
T612 Test D612 14148
C604 1nF AC250V
D603 BA158 D604
D605 BA158 D606 BA158 C606 4.7nF 1KV
R607 4.7 5W
Test T620
T601 1 13 <18V>
R608 0.22 1W
T611 Test D607 BA158 FB602 C610 470pF 500V C611 470pF 500V D611 BA158 C629 1000uF 16V R627 0.51 1W D610 BA158 C626 470uF 50V R611 33K D608 BA158 Q605 C1013 C614 47uF 16V
C615 10uF 16V
T613 Test
+18V
Test
C605 4.7nF 1KV
BA158 C607 4.7nF 1KV
C609 220uF 450V
14 2 12 <12V> R609 0.22 1W 11
C616 1000uF 25V R629 1K R624 10K T624 Test R606 220 1W Q608 C2120
C635 0.01uF 50V
T621 C608 4.7nF 1KV
C
Test T630
+5V
C
RT601 18 C620 CN601 T616 Test 680pF 2KV T602 R614 220K 2W ZD602 18V
C613 3 FB601 10 5 9 R615 6.8K R605 220 C619 0.1uF 100V R616 2.2K R612 33K C612 470pF 500V R618 22 7 D609 BA158 TRANSFORMER 4 3 OPTOISO1 R617 2.2K C621 0.01uF 50V C622 10uF 50V R619 C623 8.2M 1W 0.0022uF AC250V Q603 TL431 C624 0.1uF 100V 3 6 1 4 5 7 IC602 1 2 8 <110V> 6 C625 D613 D614 R621 680 R622 100 <45V> R610 0.22 1W
470pF 500V
Test T629
+45V
R634 560 L603 100uH C628 100uF 160V C630 47uF 160V Q607 C1815 D615 ZD603 3.6V 14148 R601 10K D601 14148 R630 2.2 2W Q606 C2120 R628 820 T622 Test IC603 7808 Test T634 C602 47uF 16V C631 2200uF C632 0.1uF GND IN OUT C633 C601 470uF 16V 0.01uF 50V +8V R633 33 2W Test T633 +3.3V C635 0.01uF 50V R626 220K C636 100uF 16V R632 10K R631 10K T627 Test Test T631 Test T632 +12V +110V
CN2
T617 Test
220pF 2KV RU4A RU4A
RST601 220
C618 0.1uF AC250V T603
ZD604 5V1
C634 470uF 16V
Test
T623
B
GST601
0.1uF AC250V C617
Test T625 R625 10K Test T626 Q602 C1815 STAND BY L:STANDBY H:WORKING
B
VDR601
R623 10K C627 2200uF 16V
ADJ/SS
FB
2 1 CN602 AC90-270V
T614 Test SW601 T615 Test Test T618 Test
S/GND
R613 2.2M 1/2W T619 F601
VCC
BD
D
R602 75
T3.15A 250V
IC601 STR-W6553
R620 4.3K
VR601 1K
ATTN. LIVE PARTS
A
ZD601 3V9
1
2
3
Test T628 A
R603 22 1W
Q604 C1815
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4
Circuit Diagrams and PWB Layouts
SK4.1L CA
7.
12
Mono Carrier: Line Deflection
1 2 3 4
A2
D
LINE DEFLECTION
ABL EHT
A2
D T301
+13V-V
T313 Test
C317 C315 1000uF 25V D303 BA158 D304 BA158 C318
470pF 500V
-140V 9
EHT
-13V-V
T314 Test
C301 0.01uF 50V
R309 0.33 2W R310 0.33 2W 470pF 500V
+13V
3
-13V
4 5
C302 0.01uF 50V
C316 1000uF 25V
GND
5
11
AFC ZD301 8V2
C323 220pF 2KV
R317
0
HEATER 6 FOCUS AFC 7 C
C
R315 3.3K 2W B+ T317 Test D305 BA158 B+ 2 SCREEN
R318 0.68 1W
+185V 10
T319 Test +45V R311 270 1W Q302 NPN C304 2.2uF 50V R304 22 1W T302
C306 47uF 250V
C319 470pF 500V H-OUT 1 D308 BY228 FLY-3P62 8 ABL C305
C307 CAP1
C308 CAP1
C310 CAP1 D307 RU4B
R307 ? 2W
0.1uF 50V R322 1K 1/4W D301 14148 R320 470K C303 0.1uF 63V B D302 14148
C321 1nF 500V
B T315 Test H-OUT R312 220 C322 T316 C320 560pF 500V Test Q301 C2482 R306 5.6K C327 4.7uF 50V
L301 ? R316 1.5 2W
C324 27nF 630V
R303 180
R305 330 R302 27K
L302 ZD303 18V ? C312 CAP1 Test T322 CN302 1 Test T323 2 680pF 2KV C314 R321 1K 2W L303 J301 RF ? Test T320 Test T321 1 2 Test T324 3 4 CON4 CN301
0.01uF 50V R314 47K 1/4W ZD302 8V2 C326 1nF 50V BA158 Q303 F630 C309 CAP1 C311 CAP1 L304 ? D306 R319 C313 15K 1W C325 4.7uF 250V
EW R308 ?
R301 100 R313 RES4 Test T318
CAP1
J302 Ultra slim
H DEF
A
A
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1
2
3
4
Circuit Diagrams and PWB Layouts
SK4.1L CA
7.
13
Mono Carrier: Frame Deflection
1
2
3
4
A3
D
FRAME DEFLECTION
A3
D
IC351 TDA4863
CN351 CN2
VOUT
GND
INN
VP1
VP2
VP3
INP
V DEF
Test
T311 R353 1.8K
Test
T312 C
+13V-V C D351 BA158 -13V-V R358 220 2W C351 0.1uF 63V B VDRB VDRA
2
4
5
1
3
6
7
R352 4.7K
R351 4.7K
330 2W
R3541.8K
C352 220uF 50V
C353 0.1uF R360 5.6 63V
0.82 2W R356
R355
R357 ? 2W
R361 ?
R359 5.6
B
A
I_17890_013.eps 100408
A
1
2
3
4
Circuit Diagrams and PWB Layouts
SK4.1L CA
7.
14
Mono Carrier: Tuner
1
A4
TUNER
A4
TUNER TUNER-FS R209 1.2K C209 AGC BM1 BM2 SDA SCL N.C AS BT N.C N.C IF 1nF 50V L201 1uH R215 470 R214 4.7K 0.01uF 50V T217 Test C210
100 SCL R201 100 SDA R202 100pF 50V C203 C202 100pF 50V R205 100uF 16V C201 0.01uF 50V 15K T214 Test Test T215 R206 27 2W C205 IC201 33V
10
11 C206 47uF 50V 0.01uF 50V
1
4
5
2
3
6
7
8
9
R211 56 Q201 C2717 R210 1.2K R213 10
R208 75
ZD201 5V1
C208
A
T216
Test
C207
C204 10uF 16V
R203 R204 27K 680
R212 82
0.01uF 50V
R216 180
A
R207 6.8K
R217 N.C C211 0.01uF 50V
AGC
+ 8V
+ 45V
IF
I_17890_014.eps 100408
1
Circuit Diagrams and PWB Layouts
SK4.1L CA
7.
15
Mono Carrier: AV Switch
1 2 3 4
A5
D
AV SWITCH
A5
D
Test
Test
T411
T431
R
L
P451 AV OUT
P452
P453 Rea r AV1 Rea r AV2
P454
P455 V Test Y C YC T429 T430 Test ZD457 8V2 C46747uF 16V Test R478
Test
Test
Test
Test
Test
Test
100pF 50V
Test
Test
T412 100pF 50V C453
Test T414 C451
T415 C452 Test
T416
YUV
V
L
R
Y
U
V
V
L
R
T418
T419
T420
T421 L451 560
T423 L452 560
T425
T426
100K 10uF 16V 10uF 16V
10uF 50V
10uF 50V
C454
R461 75
R482 75
R483 75
R453 100
R454 100
L453 560
L454 560
R462 75
C465 C466 C463 10uF 16V R474 100K R476 100K R477 100K 16 15 10uF 16V C464 14 R475 100K 13 12 11 10 R457 1K 1K 9 R458 R479
C
C
100K R480 100K R481 100K
C461
100pF 50V
10uF 16V
C457
10uF 16V
ZD455 8V2
C458
C456
8V2
8V2
8V2
100pF 50V
100pF 50V
R451 100
R452 100
ZD454 8V2
R464 4.7K
R465 4.7K
ZD451
ZD452
ZD453
100pF 50V
C455
C462
R467 4.7K
R468 4.7K
IC451 H4052 VCC 2X 1X X-COM 0X 3X CTL-A CTL-B 0Y 2Y Y-COM 3Y 1Y INH VEE VSS 1 2 3 4 5 6 7 8
ZD456 8V2
R469 68
R470 750
J451 For m ono Q451 C1815
R471 750 Q452 C1815 R484 1.5K Q453 C1815 R459 10K
R463 4.7K
R466 4.7K
J452 For m ono
R485 1.5K R460 Q454 10K C1815
R472 100K C459 10uF 16V
R473 100K C460 10uF 16V J? JUMP A-R-OUT
B
J? JUMP A-L-OUT V-OUT Test Test AV-SEL1 Test AV-SEL2 Test T413 Test +8V T417 Test Y-YUV U-YUV V-YUV T422 A1- L- IN T424 A1- R- IN T427 T428 A2- R- IN R486 2.7K R455 100
B
A2- L- IN
AV-IN
+8V
A-R
A-L
C468 N.C
C-YC A-R A-L
TV-AUDIO
A
A
I_17890_015.eps 100408
1
2
3
4
Circuit Diagrams and PWB Layouts
SK4.1L CA
7.
16
Mono Carrier: Audio Amplifier
1 2 3 4
A6
D
AUDIO AMPLIFIER
A6
D IC401 TFA9842J
CN401 4 3 2 1 Test TO SPEAKER
T432 Test T437 Test VCC
OUT1
OUT2
GND
SVR
CIV
IN1
T436 1000uF 25V C406 C407 R406 330 R407 330 1000uF 25V A-L R403 10K C410 47uF 50V R411 C411 ? 4.7nF 100V R405 R408 R410 120K 3.3K C408 0.1uF 50V Q401 C1815 C401 100uF 16V R413 +18V 3.3K 1/4W R409 Test T440 4.7K D401 Q402 C1015 R404 10K D402 14148 14148 R414 4.7K MUTE +12V B R412 ? T439 A-L R401 R402 1K C409 220uF 25V C412 4.7nF 100V T443 Test VOL 1K C402 10uF 16V 10uF 16V C403 T441 Test 7 8 6 5 4 3 9 2 1 A-L A-R Test T442 C Test
C
0.01uF 50V
Test 0.01uF 50V
C404
C405
P401 B
T435
Test T438
IN2
VC
EAR PHONE C413 470uF 25V
?
A
A
I_17890_016.eps 100408
1
2
3
4
Circuit Diagrams and PWB Layouts
SK4.1L CA
7.
17
Mono Carrier: CPU & Decoder
1 2 3 4
A7
D
CPU AND DECODER
A7
SDA D102 14148 D103 STAND BY 14148 IC101 C131 100uF 16V C122 0.01uF 50V VCC WP SCL SDA 8 7 6 5 C112 100pF 50V R101 R102 100 100 ZD105 C114 100pF 50V 3V9 C115 4 2.2uF 50V R103 R119 R128 100 15K 3.3K 5 6 7 8 9 R121 4.7K R125 3.3K R111 10K R126 3.3K R127 3.3K IC102 1 2 3 STAND BY SCL SDA AV3 SCART ID KEY VOL LED VSS C/P MUTE PAL/NTSC VSS A DEC VP2(8V) DECDIG PH2LF PH1LF GND3 DECBG AVL/EWD VDRB VDRA IF IN1 IF IN2 IREF VSC AGC OUT SIF IN1/AUDEEM SIF IN2/DECSDEM GND2 SNDPLL/SIFAGC AVL/REFO/SNDIF TDA937X IR IN AV2 AV1 VDDP(3.3V) RESET XTAL OUT XTAL IN OSC GND VDDC(3.3V) VPE VDDA(3.3V) B OUT G OUT R OUT BLK IN BCL IN B2/U/Pb IN G2/Y IN R2/V/Pr IN INSSW2 AUDIO OUT C IN CVBS3/Y GND CVBS1 VP1(8V) IFVO/SVO PLL IF EHTO AUDEXT/QSSO FBISO HOUT 64 63 62 61 60 59 58 12MHz 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 C119 10uF 16V R114 2.2K 100uF 16V C106 0.01uF 50V C127 L105 10uH R137 47uF 16V 47 Q101 C1815 C116 C138 C107 10uF 16V 0.01uF 63V 0.1uF 63V R109 1K Q102 C1815 R110 1K C130 R120 1.2K L106 34 10uF 16V 27K 33 C149 220pF 50V R124 100K R108 100 R122 180 R115 2.2K X102 5.5MHz X103 6.0MHz X104 6.5MHz 8.2uH R123 180 R132 33K C139 C140 C141 0.022 50V 0.022 50V 0.022 50V R113 10K R104 100 R105 100 R106 100 R112 10K R116 C144 27K C125 0.01uF 50V X101 C142 33pF 33pF C143 C124 0.01uF 50V C104 100uF 16V L103 10uH L102 10uH ZD102 ZD103 ZD104 8V2 8V2 8V2 ZD106 8V2 Test T113 Test T114 Test T115 Test T116 CN101 CON5 1 2 3 4 5 560pF 50V R133 39K D101 C101 10uF 50V 14148 R134 5.6K U-YUV Y-YUV V-YUV TV-AUDIO C-YC AV-IN V-OUT ABL C117 10uF 16V T119 Test 100uF 16V C105 L104 10uH C126 0.01uF 50V C150 ZD101 N.C R129 5V1 R107 100 Test T117 Test T118 3.3K R130 3.3K IR AV-SEL2 AV-SEL1 +3.3V SCL
D
+5V
1 2 3 4
A0 A1 A2 GND 24C08
C113 100pF 50V
KEY VOL LED
MUTE Test Test T111 C110 L101 T112
10 11 12 0.22uF 63V 13 14 100uF 16V C123 0.01uF 50V C111 C135 0.22uF 63V 2n2 100V C137 0.1uF 50V 15 16 17 18 19 C136 C128 C129 2.2uF 50V 1nF 50V 1nF 50V 20 21 22 23 24 R135 C147 39K 1/4W 25 0.1uF 250V 26 27 C145 R131 3.3K 1n5 100V C146 330pF 50V C148 C102 180pF 50V 10uF 50V 28 29 30 31 C118 10uF 16V 32
C
SAW101 SAW
10uH
C103
C
R118 15K 0.1uF 50V IF 4n7 100V C121 1 2 3 4 5 0.01uF 50V EW VDRB VDRA C134 C132 C133 1nF 50V(OP)
AGC
390 C109 37 R136 36 35 0.1uF 63V
C108 22nF 100V
R117
C120
B
B
D104 14148 A1- L-IN T120 Test T121 Test
R000 TEST
H-OUT
AFC
EHT
KEY LED
T011 Test R182 820 R183 3.6K R181 15K R184 24K
T012
D180 LED
SW180 VOL-
SW181 VOL+
SW182 PRO-
SW183 PRO+
SW184 STAND BY
A
IR
M180 38KHz 1 2 +5V R180 100 C180 10uF 16V 3 Test T013
+8V
Test
A
I_17890_017.eps 100408
1 2 3 4
Circuit Diagrams and PWB Layouts
SK4.1L CA
7.
18
Layout Mono Carrier (Top Side)
I_17890_018.eps 100408
Circuit Diagrams and PWB Layouts
SK4.1L CA
7.
19
Layout Mono Carrier (Bottom Side)
I_17890_019.eps 100408
Circuit Diagrams and PWB Layouts
SK4.1L CA
7.
20
CRT Board
1
2
3
4
5
6
7
8
9
10
B
A
CRT BOARD
B
Test
CN501 CON5
Test Test
CRT PCB
T515 R502 22 Test T513 R511 15K 3W T517 Test R515 220 1W D504 BA158 Q504 BF420 T519 Test Q507 BF421 R518 270 1W C501 330PF
A
1
2
3
4
T511
T512
5
B
R507 2K2 R512 270 D501 1N4148
C
R501 22
Q502 C4544 Test T524
D
R508 2K2
R513 270 D502 1N4148
R505 22
Q509 BF421
T527
C508 1000pF 2KV
C502 330PF
G
R520 270 1W T529 Test
D506 BA158 Q506 BF420
R525
R524 15K 3W
T525 Test Q503 C4544 T523 Test
R517 220 1W
R504 22
R509 2K2
R514 270 D503 1N4148
R506 22
Q508 BF421
T526
C503 330PF
220K
E
F
R519 270 1W
Test
Test
B
R526 10 CN502 CON4
G
3
4
2
1
1
2
3
4
5
Test
Test
Test R510 15K 3W
T514
Q501 C4544 T516 Test R503 22
CRT
R521 2K7 1W Test T520 Test T521
B
R
KR KG KB
R522 2K7 1W Test T522 R523 2K7 1W
T518 Test
R516 220 1W Q505 BF420
C
D505 BA158
D
C506 NC L501 10uH C507 0.1uF 250V
E
C505 ZD501 8V2 1000PF T530 T531
Test
F
T528
G
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6
7
8
9
10
Circuit Diagrams and PWB Layouts
SK4.1L CA
7.
21
CRT Board
CRT BOARD Top Layer
Personal Notes:
CRT BOARD Bottom Layer
I_17890_021.eps 100408
E_06532_012.eps 131004
Circuit Diagrams and PWB Layouts
SK4.1L CA
7.
22
BTSC and Tone Control Panel
1 2 3 4
K
D
BTSC AND TONE CONTROL
K
FOR BTSC AND TONE CONTROL
1 2 3 D CN201 CON3 Test T213
C801 10uF 50V
R809 10K T813 Test
VEO VEI CNR CM CDEC AGND DGND SDA SCL VCC COMP VCAP CP1 CP2 CPH CADJ IC801 TDA9850
CS CW CTS CTW MAD OUTL CND CL VREF SAP CSDE OUTR CR CSS CM O CER
Test
R811 150 C818 47nF 100V C803 C824 C815
R813
8.2K1 2
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
C831 C832 C806 C807
1uF 50V 1uF 50V 10uF 50V 10uF 50V
T211
T212 Test
Q801 C1815
10uF 50V 0.1uF 63V 4.7uF 50V
3 4 5 6
R810 10K T811 Test Test T812
R804 R805
C828 100pF 100 50V 100
7 C830 100pF 50V 8 9 10
C825 C833 C822
0.1uF 63V 2.2uF 50V 100uF 16V
R801 100 C R808 1K C812 0.01uF 50V
C802 C821 C819 100uF 16V C826 C827 C814 4.7uF 50V R812 2.2K
10uF 50V
11
C835
15nF 100V
100uF 16V 12 0.47uF 63V 13 C829 14 0.22uF 63V 15 10uF 50V 16
C834 C816 C817
2.2uF 50V 4.7uF 50V 4.7uF 50V X801 503KHz
C
C836 N.C
T816 Test CN801 SCL 1 SDA 2 GND 3 GND 4 Rear AV in L 5 Rear AV in R 6 Side/Front AV in L 7 Side/Front AV in R 8 GND 9 GND 10 AV audio out L 11 AV audio out R 12 AM out L P 13 AM out R P 14 GND 15 VCC 16 GND 17 FM 18 CON18 R815 22 1W Q803 C2120 CN802 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 CON18 T433 Test Test T434 B A-L-OUT A-R-OUT A-L A-R +12V TV-AUDIO A1-L-IN A1-R-IN A2-L-IN A2-R-IN SCL SDA
Test
R802 100
R803 100
T814 1 2 Scin-L P1 Min-L CSMO Min-R VP Sco-R GND Mo-R Lin-R CBR1 CBR2 N.C CTR Lo-R SCL IC802 TDA9859 Scin-R P2 Ain-R CPS1 Ain-L CPS2 Sco-L MAD Mo-L Lin-L CBL1 CBL2 N.C CTL Lo-L SDA 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
T815 C805 10uF 50V 10uF 50V 15nF 100V 10uF 50V 15nF 100V
C804 T819 C808 C823 C809
10uF 50V
Test Test
10uF 50V 100uF 16V 10uF 50V
B
Q802 C2120 R816 330 ZD801 8V2 R814 22 1W D801 14148
T818
Test C813 0.01uF C847 100uF 16V R818 13K C839 T820 Test
C820 100uF
C837 C838
68pF 50V
0.15uF 100V 12 13 5.6nF 100V 14 15
T817
R806 100
C840 100pF 50V
100 C841 100pF 50V
C848 100uF 16V
16
R807
A
D802 14148
ZD802 9V1
1
2
Test
Test
T821
T824
3 4 5 6 7 8 9 10 11
C810 C844 C811 C845
T825 Test Test T822 C849 N.C
T827 Test
C842 0.15uF 100V
68pF C846 R81913K R817 330 5.6nF Test T823 T826 Test
Test
C843
A
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4
Circuit Diagrams and PWB Layouts
SK4.1L CA
7.
23
Layout BTSC and Tone Control Panel
BTSC and Tone Control Panel (Top Layer)
Personal Notes:
BTSC and Tone Control Panel (Bottom Layer)
I_17890_023.eps 110408
E_06532_012.eps 131004
Circuit Diagrams and PWB Layouts
SK4.1L CA
7.
24
Personal Notes:
E_06532_013.eps 131004
Alignments
SK4.1L CA
8.
EN 25
8. Alignments
Index of this chapter: 8.1 General Alignment Conditions 8.2 Hardware Alignments 8.3 Software Alignments 8.4 Factory mode Settings
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 jumper J610 and adjust VR601 to a voltage of 115 V ±1.0 V.
8.3
Software Alignments
Put the set in its MENU mode (factory mode) as follows (see also figure "Factory Mode" on the next page): · Press the keys [i+], "smart sound" and "smart picture" to enter the factory menu. · Press the keys [i+] again and "ADJUST" appear on screen. · Press the number keys to enter the adjust page, press B/ y to choose the items that to be adjusted, Press z/A to adjust its value. · Press [i+] to quit factory mode. The different alignment parameters are described further on.
8.3.1
Rf AGC Voltage Adjust 1. Provide a 571.25 MHz, 60 dB half color bar signal. 2. Enter factory mode and press key 1. 3. Measure tuner AGC point voltage, adjust AGC item till the voltage is 2.4 V, or till picture noise just disappears. (typical value is at 27).
8.3.2
Focus Fine Adjust 1. Provide a cross-hatch pattern signal. 2. Set state to "Rich" mode. 3. Adjust flyback transformers Focus knob till picture is clear.
EN 26
8.3.3
8.
SK4.1L CA
Alignments
Screen Voltage Adjust (Key 0). 1. Set picture to "AV Standard" mode, without signal input. 2. Press the keys [i+], "Smart sound" and "Smart picture" to enter the factory menu. When in "B/W BALANCE" page, press "0" on the RC. 3. Adjust flyback transformers Screen knob till OK is displayed on screen, press "0" to exit. Table 8-1 To increase/decrease CUT R/G Function RC key CUT R+ 1 CUT R4 CUT G+ 2 CUT G5
8.3.4
Horizontal Adjustment 1. Provide a 50 Hz monoscope pattern. Press the keys [i+], "Smart sound" and "Smart picture" to enter the factory menu. Press the keys [i+] again and "ADJUST" appear on screen. 2. Press key "0" and adjust "HPH" to set picture horizontal centre to CRT horizontal centre.
8.3.5
Vertical & YUV/RGB Horizontal Adjust (Key 0) 1. Provide a 50 Hz cross hatch signal, set TV to standard mode. Adjust VSL so that half picture of the pane cross appears. The picture's vertical line is just at the bottom of the half picture. Adjust VSL to make the centre of the picture's vertical line and the kinescope are in superposition. 2. Adjust VSI to obtain picture's vertical re-display ratio more than 90%. 3. Provide a 60 Hz cross hatch signal, do step 1 and 2 again to adjust. 4. If necessary, fine adjust above items.
Alignments
SK4.1L CA
8.
EN 27
Enter Factory Mode: Press sequentially: I ---> Smart Sound ---> Smart Picture Main Menu in red box. Navigation: Enter "I+" again (or "MENU")on the RC to go to the "ADJUST" page that will allow Navigation to individual Service pages: Selecting the number "0 - 8", "Smart Picture" and "Smart Sound" on the remote control to go directly to the pages. Changing value Move to the intended parameter with the arrow "up" and "down" key on the RC. Use the arrow "Right" and "Left" to increse and decrease the value respectively. Exit Enter " I+ " on the RC to exit factory mode. Special Note: The TV could go into factory mode when in service mode, in this factory mode, the set will have not respond to RC and local keys. Factory appears at the left corner of the screen. In Service mode main page, when "2" is entered, the set will go into factory mode. When in factory mode, enter "8", "9" to exit the factory mode. Main Page B/W BALANCE DRI R DRI G DRI B CUT R CUT G COOL DR COOL DG COOL DB COOL CR COOL CG WARM DR WARM DG WARM DB WARM CR WARM CG BT CT 27 23 34 35 36 -7 -6 +0 +1 +1 + 13 +9 +1 -1 +1 32 32
SERVICE 0 FREQUENCY H PH V SL V SH V SI V SC EW WIDTH EW PARA UP CORNER LO CORNER H -PARA H-BOW EW TRAPE ZOOM 60HZ 37-TV 29 38 38 23 60 43 35 33 18 39 27 44 SERVICE 1 SHIPMODE AGC AGC SPEED IF HRC&IRC MULTI SYSTEM PWL XDT XDT Count MVS MAT BPB CORING OSO > 24 1 45.75M 0FF ON 8 1 30 JA P OFF 0 3 ON SERVICE 2 UOC VOL SW UOC/PWL VOL MONO GAIN STEREO GAIN SAP GAIN AV gain 59859 INPUT VOL 10 VOL 25 VOL 50 VPL 80 VOL 100 FMWS AVL OPT OFF 38 50 50 50 47 1 45 55 80 90 100 0 OFF
+
"I+"
ADJUST SERVICE 3 AV OPT AV CFG 2 AV YC/DVD VIDEO OUT PIN 5 PIN 7 PIN 8 MUTEPIN MODE MUTEPIN SEL CC HP CC LINE CC DELAY YUV Patch
"0"
"1"
"2"
SERVICE 5 BTSC-MODE Mono BTSC-ST 5 BTSC-SP 4 BTSC-LI 11 BTSC-A1 8 BTSC-A2 13 BTSC-TC 2 BTSC-STS OFF BTSC-ADJ Start MTS DETECT 50 MTS FILTER 5 MTS FILTER 2 10 W: 05 04 00 0B 08 0D 02 R: 08 0D D: MONO/ST/SAP
0 7 OFF OFF CVBS NTSC VOL1 LED OFF ON 13 21 12 ON
SERVICE 4 VP 52 HP 40 YUV OSD HS 40 OSD L 1 CODE: SYBER-SKY2-071129 NVM: 3P62E-071210
"3"
"4"
"5"
SERVICE 6 POW POWER ON TIM AKB NBL WATCHDOG VCHIP ZOOM OPT BLUE BACK BB WIDTH BLACK BACK RGB BLANKING MTS TEST
2 10 ON ON ON OFF OFF 0 +0 0 ON ON
SERVICE 7 SUB BRI SUB CON SUB COL S UB S H A SUB TIN SUB TIN-AV YDL PAL YDL NTSC YDL AV MAX BRI MID BRI M AX C ON MID CON SC. BRI
4 3 30 32 16 16 2 2 0 60 18 63 15 8
SERVICE 8 YUV DR YUV DG YUV DB YUV CR YUV CG YUV COOL DR YUV COOL DG YUV COOL DB YUV COOL CR YUV COOL CG YUV WARM DR YUV WARM DG YUV WARM DB YUV WARM CR YUV WARM CG
-2 +0 +0 -4 -11 -7 +6 +0 -1 +0 +11 +8 +0 +0 -1
SERVICE 9 ENGLISH SPAISH FRANCH PORTUGUESE YGN CATHE HCO OSVE INITEEP
ON ON OFF ON ON 3 ON OFF >
"6"
"7"
"8"
"9"
"Smart Picture"
Soft BRIGHT CONTRAST COLOR SHARP YUV SHARP COLOR TEMP Voice BASS TREBLE SURROUND
"Smart Sound"
58 65 40 69 79 WARM
40 55 OFF
"Smart Picture"
Rich BRIGHT CONTRAST COLOR SHARP YUV SHARP COLOR TEMP Music BASS TREBLE SURROUND
"Smart Sound"
63 90 50 100 100 COOL
55 60 OFF
"Smart Picture"
Natural BRIGHT CONTRAST COLOR SHARP YUV SHARP COLOR TEMP Theatre BASS TREBLE SURROUND
"Smart Sound"
50 75 50 80 90 NORMAL
60 60 ON
"Smart Picture"
"Smart Sound"
I_17890_004.eps 260308
Figure 8-1 Software Alignments
EN 28 8.4
8.
SK4.1L CA
Alignments
Factory mode Settings
Description of the factory menu B/W balance White point R adjustment. White point G adjustment White point B adjustment Black level off-set R adjustment Black level off-set G adjustment. "BRIGHTNESS" of "White Balance Adjustment page" setting "CONTRAST" of "White Balance Adjustment page" setting COOL offset according to "DRI R" value of tv, white point R of "COOL" COOL offset according to "DRI G" value of tv, white point G of "COOL" COOL offset according to "DRI B" value of tv, white point B of "COOL" Storage address Display string DRI R DRI G DRI B CUT R CUT G BT CT COOL DR COOL DG COOL DB COOL CR COOL CG WARM DR WARM DG WARM DB WARM CR WARM CG Frequency ox008 ox009 ox00a ox00b ox00c 0x04b 0x04c 0x04d 0x04e 0x04f 0x050 0x051 0x0ed(bit4) 0x003 0x004 0x006 0x005 0x007 0x044 0x045 0x046 0x047 0x048 0x049 0x04a 0x062 0x05e 0x05f 0x05c 0x05d H PH V SL V SH V SI V SC EW WIDTH EW PARA UP CORNER LO CORNER H-PARA H-BOW EW TRAPE ZOOM Frequency H PH V SL V SH V SI V SC EW WIDTH EW PARA UP CORNER LO CORNER H-PARA H-BOW EW TRAPE ZOOM H PH H PH H PH H PH SHIPMODE 0x002 0x0de (bit5, bit4) 0x0dd (bit7, bit6) 0x0ea (bit4) 0x0ea (bit1) 0x0cb (bit7-bit4) 0x0e1 (bit2, bit3) 0x073 0x0e7(bit2) 0x0ed (bit0) 0x0e1 (bit5, bit4) 0x0de (bit3, bit2) 0x0e7 (bit7) 0x0e8 (bit7) 0x02e 0x052 AGC AGC SPEED IF HRC & IRC PWL XDT XDT COUNT MUS MAT BPB CORING OSO UOC VOL SW UOC/PWM VOL MONO GAIN Range (Index value) 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 60 Hz 0-TV-63-TV 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 50 Hz 0-TV-63-TV 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 0-63 +5-AV +5-AV +0-YUV +0-YUV OFF 0-63 0-63 58.75 Mhz OFF 0-15 0-2 0-255 USA OFF 0-2 0-3 OFF OFF 0-63 0-63 ON ON JAP ON 45.75 Mhz ON ON ON 24 1 45.75 Mhz OFF ON 0 1 30 USA OFF 1 3 ON OFF 41 48 23 1 45.75 Mhz OFF ON 0 1 30 USA ON 1 3 ON OFF 40 52 31-TV 24 21 33 27 32 32 32 32 32 32 32 44 32 32 32 32 35-TV 31 23 22 21 49 45 33 33 35 35 30 44 33 33 33 33 31-TV 24 21 33 27 32 32 32 32 32 32 32 44 35-TV 30 22 22 19 51 45 33 33 35 35 30 44 Default 32 32 32 32 32 32 32 -2 0 10 0 0 10 0 0 0 0 SK4.1L CA 32 32 32 32 32 32 32 -2 0 10 0 0 10 0 0 0 0
0x00d 0x00e 0x00f 0x010 0x011 0x02f 0x030 0x017 0x018 0x019
COOL offset according to "CUT R" value of tv, black level off-set R of "COOL" 0x01a COOL offset according to "CUT G" value of tv, black level off-set R of "COOL" 0x01b WARM offset according to "DRI R" value of tv, white point R of "COOL" Warm offset according to "DRI G" value of tv, white point G of "COOL" Warm offset according to "DRI B" value of tv, white point B of "COOL" 0x01c 0x01d 0x01e
Warm offset according to "CUT R" value of tv, black level off-set R of "COOL" 0x01f Warm offset according to "CUT G" value of tv, black level off-set R of "COOL" 0x020 Direct key "0" 50hz/60hz Horizontal center Vertical slope Vertical center Vertical amplitude. Vertical s-correction. EW WIDTH EW parabola/width EW upper/lower corner parabola Bottom curve Horizontal parallelogram Horizontal bow EW trapezium Expand 4:3 mode horizontal WIDTH adjust 50hz/60hz Horizontal center Vertical slope Vertical center Vertical amplitude. Vertical s-correction. EW WIDTH EW parabola/width EW upper/lower corner parabola Bottom curve Horizontal parallelogram Horizontal bow EW trapezium Expand 4:3 mode horizontal WIDTH adjust Horizontal center in AV source. Horizontal center in AV source. Horizontal center in YUV source. Horizontal center in YUV source. Direct key "1" Out of box setting, Smart Picture: Rich, Contrast +: On, NR: Off, Smart Sound: Theatre, Tuner Mode: Auto, Volume: 30, CC: Off RF.AGC adjust AGC speed IF choose HRC and IRC of N system for auto search selection ON: PAL M/N ON, OFF: PAL M/N OFF White apex limit X ray protect X ray protection detect count NTSC decode matrix PAL, NTSC decode matrix Bypass of sound bandpass filter Video dependent coring Switch-off in vertical overscan Direct key "2" UOC control volume switch UOC/PWM modify volume value Volume of 9859 modify value when sound is mono
MULTI SYSTEM OFF
Alignments
Description of the factory menu Volume of 9859 modify value when sound is stereo Volume of 9859 modify value when sound is SAP Volume of 9859 modify value when system is AV state 9859 control pin output state 10% volume point 25% volume point 50% volume point 80% volume point 100% volume point FM demodulate frequency width AVL function switch Direct key "3" AV control logic choose AV choose AV2 choose DVD choose Video output Pin 5 choose function Pin 7 choose function Pin 8 choose function MUTE pin mode OFF: Pin 7 control volume curve ON: Pin 4 control volume curve CCD Horizontal width adjust CCD scan Horizontal row when PAL N system CCD delay adjustment Direct key "4" OSD up down position OSD left right position RGB/YUV OSD Horizontal Center OSD output contrast Menu translucence Software version number 0x0e1 (bit7, bit6) 0x0cc (bit7-bit4) 0x0ea (bit5) 0x0e9 (bit4) 0x0e7 (bit4) 0x0cc (bit3-bit0) 0x0cd (bit7-bit4) 0x0cd (bit3-bit0) 0x0e9 (bit0) 0x0ee (bit6) 0x05a 0x060 0x0d1 (bit3-bit0) 0x02b 0x02c 0x05b 0x0df (bit7, bit6) 0x0e9 (bit1) AV OPT AV CFG 2 AV YC/DVD VIDEO OUT PIN 5 PIN 7 PIN 8 MUTEPIN MODE MUTEPIN SEL CC HP CC LINE CC DELAY VP HP YUV OSD HS OSD L HALFTONE SOFTWARE VERSION NUMBER BTSC-MODE 0x0ce (bit7-bit4) 0x0ce(bit3-bit0) 0x040 0x041 0x042 0x0cf (bit7-bit4) 0x0e8 (bit3) 0x0e8 (bit2) 0x001 0x072 0x074 0x0dd (bit3, bit2) 0x0cb (bit3-bit0) 0x0e8 (bit0) 0x0e9 (bit7) 0x0eb (bit7) 0x0eb (bit6) 0x0ea (bit7) 0x0eb (bit5) 0x0eb (bit4) 0x0ec (bit6) 0x0e9 (bit6) 0x06d 0x0e1 (bit1, bit0) 0x0ee (bit7) 0x057 0x059 0x023 0x024 0x025 0x075 0x0c9 (bit3-bit0) 0x0c9 (bit7-bit4) BTSC-ST BTSC-SP BTSC-LI BTSC-A1 BTSC-A2 BTSC-TC BTSC-STS BTSC-ADJ MTS DETECT MTS FILTER MTS FILTER2 POW 0-15 0-60 8-23 0-63 0-63 0-60 0-3 OFF OFF 0-3 0-7 OFF OFF IF Storage address Display string 0x053 0x054 0x055 0x0e0 (bit3, bit2) 0x026 0x027 0x028 0x029 0x02a 0x0de (bit1, bit0) 0x0e8 (bit6) STEREO GAIN SAP GAIN AV GAIN 9859INPUT VOL 10 VOL 25 VOL 50 VOL 80 VOL 100 FMWS AVL OPT
SK4.1L CA
Range (Index value) 0-63 0-63 0-63 0-2 0-100 0-100 0-100 0-100 0-100 0-2 OFF ON
8.
Default 48 48 48 2 25 50 75 90 100 0 OFF 1 3
EN 29
SK4.1L CA 52 48 50 1 45 55 75 85 100 1 OFF 0 4 OFF OFF CVBS NTSC VOL1 LED
ON ON CVBS
OFF OFF CVBS NTSC VOL1 MUTE
ON
OFF OFF 13 21 20 52 54 38 0 13 21 12 52 50 38 2 ON
ON
ON
Direct key "5" Sound mode Stereo noise limit SAP noise limit Sound input level adjustment Separate Separate Time constant Stereo level switch Stereo adjustment on/off MTS detect time delay STEREO and SAP detect count MONO detect count Direct key "6" POWER ON MODE POWER ON time delay Black current stabilization Black current loop detect WATCH DOG ON: Philips RC OFF: Skyworth RC VCHIP FUNCTION SWITCH GAME FUNCTION SWITCH CALENDER FUNCTION SWITCH 4:3 expand function choose ON: Blue Screen OFF: Black Screen EW WIDTH offset according to "EW WIDTH" value when TV is no signal Video mute during change to program RGB BLANKING Direct key "7" Sub contrast Sub brightness Sub color Sub Sharpness TV Sub tint AV Sub tint PAL Luminance delay NTSC Luminance delay SUB BRI SUB CON SUB COL SUB SHA SUB TIN SUB TIN-AV YDL PAL YDL NTSC 0-63 0-63 0-63 0-63 0-31 0-31 0-15 0-15 0 0 30 32 16 16 2 2 4 3 30 32 16 16 2 2 MONO 0-15 0-15 0-15 0-31 0-31 0-7 OFF BUSY 0-255 0-255 0-255 ON START STEREO SAP 0 0 7 23 22 4 OFF START 50 20 20 2 12 ON ON ON ON ON ON ON ON ON ON ON OFF ON OFF OFF OFF ON ON +0 0 ON ON 0 0 9 14 6 3 ON START 50 20 3 2 8 ON ON OFF ON OFF OFF OFF OFF ON 0 0 ON
0-2 POWER ON TIM 2-17 AKB OFF NBL WATCHDOG PHILIPS RC VCHIP GAME CALENDER ZOOM OPT BLUE BLACK BB WIDTH BLACK BACK OFF OFF OFF OFF OFF OFF OFF OFF 53-10 0-2
RGB BLANKING OFF
EN 30
8.
SK4.1L CA
Alignments
Storage address Display string 0x0ca(bit7-bit4) 0x056 0x021 0x058 0x022 0x02d 0x012 0x013 0x014 0x015 0x016 0x0eb (bit3) 0x0eb (bit2) 0x0eb (bit1) 0x0eb (bit0) 0x0ee (bit4) 0x0ca (bit3-bit0) 0x0ea (bit6) 0x0e9 (bit2) YDL AV MAX BRI MID BRI MAX CON MID CON SC.BRI YUV DR YUV DG YUV DB YUV CR YUV CG ENGLISH SPANISH FRANCE PORTUGUESE YGN CATHE HCO OSVE INITEEP Range (Index value) 0-15 0-63 0-63 0-63 0-63 0-63 (-32) - (+31) (-32) - (+31) (-32) - (+31) (-32) - (+31) (-32) - (+31) OFF OFF OFF OFF OFF ON ON ON ON ON Default 4 63 18 63 15 8 +0 +0 +0 +0 +0 ON ON OFF ON OFF 3 ON OFF SK4.1L CA 2 63 18 63 15 8 +0 +0 +0 +0 +0 ON ON OFF ON ON 3 ON OFF
Description of the factory menu AV Luminance delay Maximum brightness Middle brightness Maximum contrast Middle contrast Line-level of brightness Direct key "8" YUV offset according to "DRI R" value of TV, white point R of YUV. YUV offset according to "DRI G" value of TV, white point G of YUV YUV offset according to "DRI B" value of TV, white point B of YUV YUV offset according to "CUT R" value of TV, black level offset R of YUV YUV offset according to "CUT G" value of TV, black level offset G of YUV English OSD switch Spanish OSD switch French OSD switch Portuguese OSD switch External Y (Luminance) input gain during YPRPB. OFF: gain 0 dB reduced, ON: gain 3 dB reduced Cathode drive level EHT tracking mode Black current measuring lines in overscan Manual INIT E2PROM Key "Smart sound" BASS set value in Voice state TREBLE set value in Voice state SURROUND set value in Voice state BASS set value in Music state TREBLE set value in Music state SURROUND set value in Music state BASS set value in Theatre state TREBLE set value in Theatre state SURROUND set value in Theatre state Key "Smart image" Bright set value in Soft state Contrast set value in Soft state Color set value in Soft state Sharpness set value in Soft state Sharpness set value in Soft state of YUV COLOR TEMP set value in Soft state Bright set value in Rich state Contrast set value in Rich state Color set value in Rich state Sharpness set value in Rich state Sharpness set value in Rich state of YUV COLOR TEMP set value in Rich state Bright set value in Natural state Contrast set value in Natural state Color set value in Natural state Sharpness set value in Natural state Sharpness set value in Natural state of YUV COLOR TEMP set value in Natural state
0x064 0x065 0x066 0x067 0x068 0x069 0x06a 0x06b 0x06c 0x036 0x037 0x038 0x039 0x070 0x03a 0x03b 0x03c 0x03d 0x03e 0x071 0x03f 0x031 0x032 0x033 0x034 0x06f 0x035
BASS TREBLE SURROUND BASS TREBLE SURROUND BASS TREBLE SURROUND BRIGHT CONTRAST COLOR SHARP YUV SHARP COLOR TEMP BRIGHT CONTRAST COLOR SHARP YUV SHARP COLOR TEMP BRIGHT CONTRAST COLOR SHARP YUV SHARP COLOR TEMP
30 50 OFF 55 60 OFF 80 70 ON 55 50 45 45 50 WARM 70 85 70 70 80 COOL 50 75 50 50 50 NORMAL
30 50 OFF 55 60 OFF 80 70 ON 55 50 45 45 50 WARM 70 85 70 70 80 COOL 50 75 50 50 50 NORMAL
Circuit Descriptions, Abbreviation List, and IC Data Sheets
SK4.1L CA
9.
EN 31
9. Circuit Descriptions, Abbreviation List, and IC Data Sheets
Index of this chapter: 9.1 Introduction 9.2 The various circuits 9.3 Abbreviation List 9.4 IC Data Sheets resonator. The stereo channel separation is adjusted by an automatic procedure to be performed during set production. The stereo identification can be read by the I2C-bus. Two different pilot thresholds (data STS = 1; STS = 0) can be selected via the I2C-bus. SAP Demodulator The composite signal is fed from the output of the input level adjustment stage to the SAP demodulator circuit through a 5fH band-pass filter. The demodulator level is automatically controlled. The SAP demodulator includes an internal field strength detector that mutes the SAP output in the event of insufficient signal conditions. The SAP identification signal can be read by the I2C-bus. Noise Detector The composite input noise increases with decreasing antenna signal. This makes it necessary to switch stereo or SAP off at certain thresholds. These thresholds can be set via the I2Cbus. With ST0 to ST3 the stereo threshold can be selected and with SP0 to SP3 the SAP threshold. A hysteresis can be achieved via software by making the threshold dependent of the identification bits STP and SAPP. Mode Selection The stereo/SAP switch feeds either the L - R signal or the SAP demodulator output signal via the internal dbx noise reduction circuit to the dematrix/switching circuit. Different switch modes provided at the output pins OUTR and OUTL are available. dbx Decoder The dbx circuit includes all blocks required for the noise reduction system in accordance with the BTSC system specification. The output signal is fed through a 73 ms fixed deemphasis circuit to the dematrix block. SAP Output Independent of the stereo/SAP switch, the SAP signal is also available at pin SAP. At SAP, the SAP signal is not dbx decoded. The capacitor at SDE provides a recommended deemphasis (150 ms) at SAP. Integrated Filters The filter functions necessary for stereo and SAP demodulation and part of the dbx filter circuits are provided on-chip using transconductor circuits. The required filter accuracy is attained by an automatic filter alignment circuit. 9.2.5 CRT Drive Circuit In the driver circuit, both the voltage and current of the R/G/B signal are amplified, after which the CRT drive circuit modulates the cathode beam current of the CRT. The R/G/B signal input into the driver circuit is of negative polarity. 9.2.6 Power Supply Circuit The function of the power supply circuit is to supply various stabilized operating voltages and to provide protections against excessive voltages and currents.
9.1
Introduction
The SK4.1L CA is a CRT TV for the year 2008, based on the 3P62 platform. In this chapter, only a general description of the various circuits is given. For more detailed information, see the circuit diagrams in this manual.
9.2
9.2.1
The various circuits
Tuner The function of the tuner is to select the channel to be received and suppress the interference of neighboring channels, to amplify the high frequency signal, to improve the receiving sensitivity and SNR, and to generate a PIF signal through frequency conversion.
9.2.2
IF Channel The IF Channel mainly ensures the sensitivity and selectivity of the complete TV set. The IF AMP integrated in the UOCIII is made up of a three-stage dual-differential amplifier with a gain value above 70 dB, a SNR of 55 dB and a bandwidth of 7 MHz. The video demodulation circuit is made from the built-in PLL Sync Detector. The spectrum of the demodulation carrier is unitary and it is not affected by the content of the video signal. The tuner features stable receptivity while the signal output from the video detector features high fidelity. The built-in PLL circuit of the UOCIII generates a 38.0 MHz or 38.9 MHz demodulation reference signal for the sync detector to demodulate the video signal; this is called "PLL sync demodulation".
9.2.3
Sound Channel An external ceramic filter is used to select the second SIF signal for the sound channel of UOCIII from the signal output of the video detector. The audio signal is obtained after limiting amplification and demodulation by the intermediate frequency detector for the SIF signal, and then the audio signal is fed to the BTSC stereo/SAP decoder TDA9850. From that it is output to the audio amplifier TFA9842, which drives the speakers to provide the sound. The intermediate frequency detector and volume-control attenuator that are built in the UOCIII are set and adjusted via the CPU.
9.2.4
BTSC stereo/SAP decoder Input Level Adjustment The composite input signal is fed to the input level adjustment stage. The control range is from -3.5 to +4.0 dB in steps of 0.5 dB. The maximum input signal voltage is 2 V (RMS). Stereo Decoder The output signal of the level adjustment stage is coupled to a low-pass filter which suppresses the baseband noise above 125 kHz. The composite signal is then fed into a pilot detector/ pilot cancellation circuit and into the MPX demodulator. The main L + R signal passes a 75 ms fixed de-emphasis filter and is fed into the dematrix circuit. The decoded sub-signal L - R is sent to the stereo/SAP switch. To generate the pilot signal the stereo demodulator uses a PLL circuit including a ceramic
EN 32 9.3
9.
SK4.1L CA
Circuit Descriptions, Abbreviation List, and IC Data Sheets
H-FLYBACK H-OUT Horizontal Flyback H_sync output of the module / Horizontal Output pulse Horizontal Acquisition; horizontal sync pulse Horizontal Flyback Pulse; Horizontal sync pulse from large signal deflection Hardware Monochrome TV system. Sound carrier distance is 6.0 MHz. VHF- and UHF-band Inter IC bus (also called IIC) Inter IC Sound bus Integrated Circuit Intermediate Frequency Inter IC bus (also called I2C) Scan mode where two fields are used to form one frame. Each field contains half the number of the total amount of lines. The fields are written in "pairs", causing line flicker. In/Out Infra Red Left audio channel Monochrome TV system. Sound carrier distance is 6.5 MHz. L' is Band I, L is all bands except for Band I LATin AMerica Light Emitting Diode Line Output Transformer (also called FBT); The transformer in which the EHT is generated Loud Speaker Monochrome TV system. Sound carrier distance is 4.5 MHz. M= 525 lines @ 60 Hz, N= 625 lines @ 50 Hz Metal Oxide Film Resistor Metal Oxide Semiconductor Field Effect Transistor MultiPleX North American Free Trade Association: Trade agreement between Canada, USA and Mexico Not Connected Near Instantaneously Companded Audio Multiplexing; This is a digital sound system, mainly used in Europe Negative Temperature Coefficient, non-linear resistor (resistance decreases if temperature increases) National Television Standard Committee. Color system used mainly in North America and Japan. Color carrier NTSC M/N = 3.579545 MHz, NTSC 4.43 = 4.433619 MHz (this is a VCR norm, it is not transmitted off-air) Non Volatile Memory; IC containing data such as alignment values, preset stations Option Byte Open Circuit OPtion byte On Screen Display Project 50; Communication protocol between TV and peripherals Phase Alternating Line; Color system mainly used in West Europe (color carrier= 4.433619 MHz) and South America (color carrier PAL M= 3.575612 MHz and PAL N= 3.582056 MHz) Printed Circuit Board (or PWB) Phase Locked Loop; Used for e.g. FST tuning systems. The customer
Abbreviation List
2CS A2 AC ACI 2 Carrier Sound Commonly known as 2 Carrier Sound (2CS) system Alternating Current Automatic Channel Installation: algorithm that installs TV channels directly from a cable network by means of a predefined TXT page Analogue to Digital Converter Automatic Frequency Control: control signal used to tune to the correct frequency Automatic Gain Control: algorithm that controls the video input of the feature box Amplitude Modulation Automatic Noise Reduction; One of the algorithms of Auto TV Asia Pacific Aspect Ratio: 4 by 3 or 16 by 9 Audio Video Automatic Volume Level control Monochrome TV system. Sound carrier distance is 5.5 MHz Beam Current Limiter Circuit Board Assembly (or PWB) Carbon Film Resistor Computer aided rePair Cathode Ray Tube (or picture tube) Composite Video Blanking and Synchronization Component Video Input Monochrome TV system. Sound carrier distance is 6.5 MHz. D= VHFband, K= UHF-band Digital to Analogue Converter Direct Current Filament supply voltage Directions For Use: owner's manual Dolby Pro Logic Dynamic RAM; dynamically refreshed RAM Digital Versatile Disc Electrically Erasable and Programmable Read Only Memory Extreme High Tension; the voltage between the cathode and the shadow mask that accelerates the electrons towards the screen (around 25 kV) Electro Magnetic Interference; Leakage of high-frequency radiation from a transmission medium EUrope East West, related to horizontal deflection of the set East -West correction drive signal. EXTernal (source), entering the set by SCART or by cinches (jacks) Fast Blanking: DC signal accompanying RGB signals Front End; Tuner and RF part together Each interlaced broadcast FRAME is composed of two Fields, each Field consists of either Odd or Even lines Filament of CRT Field Memory / Frequency Modulation A complete TV picture comprising all lines (625/525) Flat TeleVision Green H_sync to the module Horizontal Drive
HA HFB HW I
ADC AFC
AGC
I2 C I2 S IC IF IIC Interlaced
AM ANC AP AR AV AVL B/G BCL CBA CFR ComPair CRT CVBS CVI D/K
IO IR L L/L'
LATAM LED LOT
LS M/N
DAC DC DC-filament DFU DPL DRAM DVD EEPROM EHT
MOFR MOSFET MPX NAFTA
NC NICAM
NTC
NTSC
EMI
EU EW EW-DRIVE EXT FBL FE Field
NVM
OB OC OP OSD P50 PAL
Filament FM Frame FTV G H H-DRIVE
PCB PLL
Circuit Descriptions, Abbreviation List, and IC Data Sheets
can directly provide the desired frequency Scan mode where all scan lines are displayed in one frame at the same time, creating a double vertical resolution. Positive Temperature Coefficient, non linear resistor (resistance increases if temperature increases) Printed Wiring Board (also called PCB or CBA) Quasi Split Sound Right audio channel / Red Random Access Memory Remote Control transmitter Remote Control system 5 (6), the signal from the remote control receiver Real Flat (picture tube) or Radio Frequency Red, Green, and Blue color space; The primary color signals for TV. By mixing levels of R, G, and B, all colors (Y/C) are reproduced Red, Green, Blue, Horizontal sync, and Vertical sync Root Mean Square value Read Only Memory Secondary Audio Program; Generally used to transmit audio in a second language Surface Acoustic Wave SandCastle: two-level pulse derived from sync signals Short Circuit Serial Clock signal on I2C bus Standard Definition Serial Data line of I2C bus Synchronous DRAM Sound Intermediate Frequency Surface Mounted Component Surface Mounted Device Switched Mode Power Supply SouND Static RAM STandBY Super Video Home System To Be Defined Teletext; TXT is a digital addition to analogue TV signals that contain textual and graphical information (25 rows x 40 columns). The information is transmitted within the first 25 lines during the Vertical Blank Interval (VBI) Microcontroller Ultimate One Chip Microprocessor Color difference signals V_sync Main supply for deflection (usually 141 V) Vertical Acquisition Vertical Blanking Interval; Time during which the video signal is blanked when going from bottom to top of the display Video Cassette Recorder Video Graphics Array Video Intermediate Frequency Write Enable control line World System Teletext Quartz crystal Luminance signal
SK4.1L CA
9.
EN 33
9.4
IC Data Sheets
This section shows the internal block diagrams and pin layouts of ICs that are drawn as "black boxes" in the electrical diagrams.
Progressive Scan
PTC
PWB QSS R RAM RC RC5 (6) RF RGB
RGBHV RMS ROM SAP
SAW SC S/C SCL SD SDA SDRAM SIF SMC SMD SMPS SND SRAM STBY SVHS TBD TXT
µC UOC µP UV V V-BAT VA VBI
VCR VGA VIF WE WST XTAL Y
EN 34
9.4.1
9.
SK4.1L CA
Circuit Descriptions, Abbreviation List, and IC Data Sheets
Diagram A1, W6553A, (IC601)
H_17210_039.eps 120607
Figure 9-1 Block Diagram and Pin Configuration
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.4.2 Diagram A1, OPTOIS01, (IC602)
SK4.1L CA
9.
EN 35
H_17210_039.eps 120607
Figure 9-2 Block Diagram and Pin Configuration
EN 36
9.4.3
9.
SK4.1L CA
Circuit Descriptions, Abbreviation List, and IC Data Sheets
Diagram A3, TDA486x, (IC351)
Block Diagram
THERMAL PROTECTION
TDA486xAJ
DIFFERENTIAL INPUT STAGE
VERTICAL OUTPUT
FLYBACK GENERATOR
REFERENCE CIRCUIT
7 INP
6 INN
5 VOUT
RS1 CS1
4 GND
3 VP2
CF
2 VP3
1 VP1
D1 deflection coil C1 R1 C2 R5
RP R3
R6
from deflection controller
R2
VN
VP
Block diagram of TDA486xAJ
Pin Configuration
VP1 VP3 VP2 GND VOUT INN INP 1 2 3 4 5 6 7
TDA486xAJ
Pin configuration for DBS7P (TDA486xAJ)
H_17210_038.eps 120607
Figure 9-3 Block Diagram and Pin Configuration
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.4.4 Diagram A5, 4052, (IC451)
SK4.1L CA
9.
EN 37
Block Diagram
Pin Configuration
H_17210_041.eps 120607
Figure 9-4 Block Diagram and Pin Configuration
EN 38
9.4.5
9.
SK4.1L CA
Circuit Descriptions, Abbreviation List, and IC Data Sheets
Diagram A6, TFA9842, (IC401)
Block Diagram
VCC 9 IN1 4
60 k
8
OUT1
IN2
1
60 k
2
OUT2
CIV
3
VREF
SHORT-CIRCUIT AND TEMPERATURE PROTECTION VCC
VC
7
VOLUME CONTROL 0.5VCC
6
TFA9842AJ
SVR
5 GND
Pin Configuration
IN2 OUT2 CIV IN1 GND SVR VC OUT1 VCC 1 2 3 4 5 6 7 8 9
H_17210_033.eps 110607
TFA9842AJ
Figure 9-5 Block Diagram and Pin Configuration
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.4.6 Diagram A7, 24C08 (IC101)
SK4.1L CA
9.
EN 39
H_17210_035.eps 120607
Figure 9-6 Block Diagram
EN 40
9.
SK4.1L CA
Circuit Descriptions, Abbreviation List, and IC Data Sheets
Pin Configuration
H_17210_036.eps 120607
Figure 9-7 Pin Configuration
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.4.7 Diagram A7, TDA937x (IC102)
SK4.1L CA
9.
EN 41
I_17880_008.eps 250308
Figure 9-8 Block Diagram
EN 42
9.
SK4.1L CA
Circuit Descriptions, Abbreviation List, and IC Data Sheets
Pin Configuration
I_17880_007.eps 250308
Figure 9-9 Pin Configuration
Circuit Descriptions, Abbreviation List, and IC Data Sheets
SK4.1L CA
9.
EN 43
H_17210_030.eps 130607
Figure 9-10 Pin Configuration
EN 44
9.
SK4.1L CA
Circuit Descriptions, Abbreviation List, and IC Data Sheets
Pinning
H_17210_031.eps 130607
Figure 9-11 Pin Configuration
Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.4.8 Diagram K, TDA9850, (IC801)
SK4.1L CA
9.
EN 45
Block Diagram
+ + +
C2 R1
13
14
STEREO DECODER
composite baseband input
11
C1
INPUT LEVEL ADJUST
SAP DEMODULATOR
5
+
C16
Pin Configuration
+
C3
C4
C5
Q1
ceramic resonator
C6
C7
15
16
17 L+R
18
19 27 stereo OUTL mono SAP to OUTR audio processing
L - R/SAP
DEMATRIX + MODE SELECT
21
TDA9850
C8
22