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S/M No.TCP830FEF0
CHASSIS : CP-830F
MODEL : DTH-29U7
DTH-29U8
DTH-2881
DTH-28W8
DTH-28W9
OTC 2003
CP830F Service Manual
CONTENTS
DOCUMENT HISTORY 5
1 MAIN FEATURES 5
1.1 SPECIFICATIONS 5
1.1.1 GENERAL 5
1.1.2 EURO-SCART 1 (21 Pin) 5
1.1.3 EURO-SCART 2 (21 Pin) 6
1.2 CHANNEL/FREQUENCY TABLE 7
1.3 ATSS SORTING METHOD 10
1.3.1 GENERAL CASE 10
1.3.2 SPECIAL CASE 10
2 SAFETY INSTRUCTION 12
3 ALIGNMENT INSTRUCTIONS 13
3.1 MICROCONTROLLER CONFIGURATION : SERVICE MODE 13
3.2 SERVICE MODE NAVIGATION 13
3.3 MICROCONTROLLER CONFIGURATION : OPTION BITS 13
3.3.1 OPTION 1 14
3.3.2 OPTION 2 14
3.4 TV SET ALIGNMENT 14
3.4.1 LOCAL OSCILLATOR ALIGNMENT 14
3.4.2 G2 ALIGNMENT 14
3.4.3 WHITE BALANCE 15
3.4.4 FOCUS 15
3.4.5 VERTICAL GEOMETRY 15
3.4.6 HORIZONTAL PICTURE CENTRING 15
3.4.7 EAST / WEST CORRECTION 15
3.4.8 AGC 16
4 IC DESCRIPTION 17
4.1 TELETEXT DECODER WITH EMBEDDED 8-BIT CONTROLLER 17
4.1.1 BLOCK DIAGRAM OF THE SDA55XX 17
4.1.2 DESCRIPTION 17
4.1.3 IC MARKING AND VERSION 18
4.1.4 PINNING 18
4.2 VSP9412A - SCAN RATE CONVERTER INCLUDING MULTISTANDARD COLOUR
DECODER 19
4.2.1 BLOCK DIAGRAM OF THE VSP9412A 20
4.2.2 DESCRIPTION 20
4.2.3 PINNING 22
4.3 DDP 3315C - DISPLAY AND DEFLECTION PROCESSOR 23
4.3.1 BLOCK DIAGRAM OF THE DDP 3315C 24
4.3.2 DESCRIPTION 24
4.3.3 PINNING 26
4.4 MSP341X MULTISTANDARD SOUND PROCESSOR 28
4.4.1 BASIC FEATURES OF THE MSP 341X 28
4.4.1.1 Demodulator & NICAM Decoder Section 28
4.4.1.2 DSP-Section (Audio Baseband Processing) 29
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CP830F Service Manual
4.4.1.3 Analogue Section 29
4.4.1.4 NICAM & FM/AM-Mono 29
4.4.1.5 German 2-Carrier System (DUAL FM System) 29
4.5 TDA4470 - MULTISTANDARD VIDEO-IF AND QUASI PARALLEL SOUND PROCESSOR 32
4.5.1 DESCRIPTION 32
4.5.2 FEATURES 32
4.5.3 PINNING 32
4.5.4 BLOCK DIAGRAM 33
4.6 TDA894XJ STEREO AUDIO AMPLIFIER 34
4.6.1 FEATURES 34
4.7 TDA835XJ VERTICAL AMPLIFIER 35
4.7.1 TDA8357J 35
4.7.2 TDA8358J 37
4.8 TDA6107Q 39
4.9 24C16 - 16 KB EEPROM 40
4.10 STR - F6654 41
4.10.1 GENERAL DESCRIPTION 41
4.10.2 FEATURES 41
4.10.3 BLOCK DIAGRAM 41
4.10.4 PIN DESCRIPTION 42
4.10.5 CONTROL PART - ELECTRICAL CHARACTERISTICS 42
4.10.6 MOSFET ELECTRICAL CHARACTERISTICS 43
5 CP830 CHASSIS DESCRIPTION 44
5.1 BLOCK DIAGRAM 44
5.2 IF SECTION 45
5.2.1 BLOCK DIAGRAM 45
5.2.2 VISION IF AMPLIFIER 46
5.2.3 TUNER-AND VIF-AGC 46
5.2.4 FPLL, VCO AND AFC 46
5.2.5 VIDEO DEMODULATION AND AMPLIFIER 47
5.2.6 SOUND IF AMPLIFIER AND SIF-AGC 47
5.2.7 QUASI-PARALLEL-SOUND (QPS) MIXER 47
5.2.8 STANDARD SWITCH 47
5.2.9 L SWITCH 47
5.2.10 INTERNAL VOLTAGE STABILISER 47
5.3 VIDEO / RGB 51
5.3.1 FRONT END 47
5.3.1.1 CVBS Front-End 47
5.3.1.2 Input Selector 48
5.3.1.3 Signal Levels And Gain Control 48
5.3.1.4 Synchronization 48
5.3.1.5 Chroma Decoder 48
5.3.1.6 Luminance Processing 48
5.3.1.7 RGB Front-End 48
5.3.1.8 Signal Processing 48
5.3.1.8.1 Horizontal Prescaler 48
5.3.1.8.2 Noise Reduction 49
5.3.1.8.3 Noise Measurement 49
5.3.1.8.4 Operation Modes 49
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CP830F Service Manual
5.3.1.8.5 Digital 656 Output 49
5.3.2 BACK END 49
5.3.2.1 Digital Input Interface 49
5.3.2.2 Horizontal Scaler 49
5.3.2.3 Luma Contrast and Brightness 49
5.3.2.4 Black Level Expander/Compressor (BLEC) 49
5.3.2.5 Luma Sharpness Enhancer (LSE) 50
5.3.2.6 Dynamic Peaking 50
5.3.2.7 Luma Transient Improvement (LTI) 50
5.3.2.8 Mixing of Dynamic Peaking and LTI 50
5.3.2.9 Chroma Transient Improvement 50
5.3.2.10 Analog Back End 51
5.3.2.11 Analog RGB Insertion 51
5.3.2.12 CRT Measurement and Control 51
5.3.2.13 Synchronization and Deflection 52
5.3.2.14 EHT Compensation 52
5.4 MICROCONTROLLER 52
5.4.1 MICROCONTROLLER FEATURES 52
5.4.2 ACQUISITION FEATURES 53
5.4.3 PORTS 53
5.4.4 -CONTROLLER I/O PIN CONFIGURATION AND FUNCTION TABLE 53
5.4.5 TUNING 54
5.4.6 AUTOMATIC PICTURE FORMAT SWITCHING 54
5.4.6.1 WSS Data 54
5.4.6.2 SCART Pin 8 Data (Slow Switching) 55
5.4.6.3 Picture Format Description 55
5.4.6.3.1 16:9 CRT 55
5.4.6.3.2 4:3 CRT 56
5.4.7 EXTERNAL SOURCE CONTROL LOGIC 57
5.4.8 OVER CURRENT PROTECTION 58
5.5 TELETEXT DISPLAY 58
5.6 SOUND PROCESSING 59
5.6.1 ANALOGUE SOUND IF - INPUT SECTION 59
5.6.2 QUADRATURE MIXERS 59
5.6.3 PHASE AND AM DISCRIMINATION 59
5.6.4 NICAM DECODER 60
5.6.5 DSP SECTION 60
5.6.6 SOUND MODE SWITCHING 60
5.7 SOUND AMPLIFICATION 60
5.7.1 POWER AMPLIFIER 60
5.7.2 MODE SELECTION 60
5.8 VERTICAL DEFLECTION 61
5.8.1 FLYBACK VOLTAGE 61
5.8.2 PROTECTION 61
5.8.3 GUARD CIRCUIT 61
5.8.4 DAMPING RESISTOR 61
5.8.5 EAST-WEST AMPLIFIER (TDA8358J ONLY) 61
5.9 POWER SUPPLY (STR F6654) 61
5.9.1 STR-F6654 GENERAL DESCRIPTION 61
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CP830F Service Manual
5.9.2 POWER SUPPLY PRIMARY PART OPERATIONS 61
5.9.2.1 Start -up Circuit: VIN 62
5.9.2.2 STR-F6654 Oscillating Operation 63
5.9.2.3 STR-F6654 Protection Circuits 64
5.10 TV START-UP, TV NORMAL RUN AND STAND BY MODE OPERATIONS 65
5.10.1 TV START-UP OPERATIONS 65
5.10.1.1 Schematic Diagram For Start-Up Operations 65
5.10.1.2 TV Start-Up And Microcontroller Initialisation 65
5.10.2 TV NORMAL RUN AND STAND-BY MODE OPERATIONS 67
5.10.2.1 TV On Normal Run Mode 67
5.10.2.2 TV Set On Stand-By Mode 70
6 SERVICE PARTS LIST 72
6.1 DTH-29U7ZL 72
6.2 DTG-2881ZL 80
7 EXPLODED VIEW 88
7.1 DTH-29U7 88
7.2 DTH-29U8 89
7.3 DTH-2881 90
7.4 DTH-28W8 91
7.5 DTG-28W9 92
8 PRINTED CIRCULT BOARD 93
8.1 MAIN PCB 93
8.2 CRT PCB 94
8.3 PFC PCB 95
9 SCHEMATIC DIAGRAM 96
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CP830F Service Manual
DOCUMENT HISTORY
VERSION DATE COMMENTS
V1.00 18/11/02 Creation of document (Author M Hearn) for project CP830 100Hz TV.
V1.01 22/11/02 Reformatting of the document, plus insertion of Document History section
1 MAIN FEATURES
1.1 SPECIFICATIONS
1.1.1 GENERAL
TV standard PAL - SECAM B/G D/K, PAL I/I, SECAM L/L
Colour system Tuner PAL, SECAM
AV PAL, SECAM, PAL 60, NTSC M, NTSC 4.43
Sound system NICAM B/G, I, D/K, L,
FM 2Carrier B/G, D/K
Power 29"(4:3) Real Flat :84W approx.
consumption 28"(16:9) Real Flat : 84W approx.
Sound Output Power 7W x 2 (at 60% mod, 10%THD)
Speaker 12W 8 ohm x2
Teletext system 9 pages memory FASTEXT (FLOF or TOP)
Aerial input 75 ohm unbalanced
Channel coverage Off-air channels, S-cable channels and hyperband
Tuning system frequency synthesiser tuning system
Visual screen size 28" : 66cm
29" : 68cm
Channel indication On Screen Display
Program Selection 100 programmes
Aux. terminal EURO-SCART 1 : Audio / Video In and Out, R/G/B
In, Slow and Fast switching.
EURO-SCART 2 : Audio / Video In and Out, SVHS In.
AV3 : Audio-Video Jack on front of cabinet.
Headphone jack (3.5 mm) on front of cabinet
SVHS3 (option) : Jack on front of cabinet ? sound
input common with AV3.
Remote Control R-46G22
Unit
1.1.2 EURO-SCART 1 (21 Pin)
Pin Signal Description Matching value
1 Audio Output Right 0.5 Vrms, Impedance < 1 k , ( RF 54% Mod )
2 Audio Input Right 0.5 Vrms, Impedance > 10 k
3 Audio Output Left 0.5 Vrms, Impedance < 1 k , ( RF 54% Mod )
4 Audio Earth
5 Blue Earth
6 Audio Input Left 0.5 Vrms, Impedance > 10 k
7 Blue Input 0.7 Vpp 0.1V, Impedance 75
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CP830F Service Manual
9 Green Earth
10 N.C.
11 Green Input 0.7 Vpp 0.1V, Impedance 75
12 N.C.
13 Red Earth
14 Blanking Earth
15 Red Input 0.7 Vpp 0.1V, Impedance 75
16 Fast Switching 0 to 0.4V : Logic 0 , 1 to 3V : Logic 1 , Impedance 75
17 Video Out Earth
18 Video In Earth
19 Video Output 1 Vpp 3dB, Impedance 75
20 Video Input 1 Vpp 3dB, Impedance 75
21 Common Earth
1.1.3 EURO-SCART 2 (21 Pin)
Pin Signal Description Matching value
1 Audio Output Right 0.5 Vrms, Impedance < 1 k ( RF 54% Mod )
2 Audio Input Right 0.5 Vrms, Impedance > 10 k
3 Audio Output Left 0.5 Vrms, Impedance < 1 k , ( RF 54% Mod )
4 Audio Earth
5 Earth
6 Audio Input Left 0.5 Vrms, Impedance > 10 k
7 N.C.
8 N.C.
9 N.C.
10 N.C.
11 N.C.
12 N.C.
13 Earth
14 Earth
15 Chroma Input 3dB for a luminance signal of 1 Vpp
16 N.C.
17 Earth
18 Video In Earth
19 Video Output 1 Vpp 3dB, Impedance 75 ( Monitor output )
20 Video Input, Y In. 1 Vpp 3dB, Impedance 75
21 Common Earth
20 18 16 14 12 10 8 6 4 2
21 19 17 15 13 11 9 7 5 3 1
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CP830F Service Manual
1.2 CHANNEL/FREQUENCY TABLE
CHANNEL EUROPE CCIR FRANCE GB(IRELAND) EAST OIRT
C01 46.25 - 45.75 49.75
C02 48.25 55.75 (L ) 53.75 59.25
C03 55.25 60.5 (L ) 61.75 77.25
C04 62.25 63.75 (L ) 175.25 85.25
C05 175.25 176.00 183.25 93.25
C06 182.25 184.00 191.25 175.25
C07 189.25 192.00 199.25 183.25
C08 196.25 200.00 207.25 191.25
C09 203.25 208.00 215.25 199.25
C10 210.25 216.00 223.25 207.25
C11 217.25 189.25 (LUX) 231.25 215.25
C12 224.25 69.25 (L ) 239.25 223.25
C13 53.75 76.25 (L ) 247.25 -
C14 - 83.25 (L ) 49.75 -
C15 82.25 90.25 57.75 -
C16 - 97.25 65.75 -
C17 183.75 - 77.75 -
C18 192.25 - 85.75 -
C19 201.25 - - -
C20 - - - -
C21 471.25 471.25 471.25 471.25
C22 479.25 479.25 479.25 479.25
C23 487.25 487.25 487.25 487.25
C24 495.25 495.25 495.25 495.25
C25 503.25 503.25 503.25503.25
C26 511.25 511.25 511.25 511.25
C27 519.25 519.25 519.25 519.25
C28 527.25 527.25 527.25 527.25
C29 535.25 535.25 535.25 535.25
C30 543.25 543.25 543.25 543.25
C31 551.25 551.25 551.25 551.25
C32 559.25 559.25 559.25 559.25
C33 567.25 567.25 567.25 567.25
C34 575.25 575.25 575.25 575.25
C35 583.25 583.25 583.25 583.25
C36 591.25 591.25 591.25 591.25
C37 599.25 599.25 599.25 599.25
C38 607.25 607.25 607.25 607.25
C39 615.25 615.25 615.25 615.25
C40 623.25 623.25 623.25 623.25
C41 631.25 631.25 631.25 631.25
C42 639.25 639.25 639.25 639.25
C43 647.25 647.25 647.25 647.25
C44 655.25 655.25 655.25 655.25
C45 663.25 663.25 663.25 663.25
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CP830F Service Manual
CHANNEL EUROPE CCIR FRANCE GB(IRELAND) EAST OIRT
C46 671.25 671.25 671.25 671.25
C47 679.25 679.25 679.25 679.25
C48 687.25 687.25 687.25 687.25
C49 695.25 695.25 695.25 695.25
C50 703.25 703.25 703.25 703.25
C51 711.25 711.25 711.25 711.25
C52 719.25 719.25 719.25 719.25
C53 727.25 727.25 727.25 727.25
C54 735.25 735.25 735.25 735.25
C55 743.25 743.25 743.25 743.25
C56 751.25 751.25 751.25 751.25
C57 759.25 759.25 759.25 759.25
C58 767.25 767.25 767.25 767.25
C59 775.25 775.25 775.25 775.25
C60 783.25 783.25 783.25 783.25
C61 791.25 791.25 791.25 791.25
C62 799.25 799.25 799.25 799.25
C63 807.25 807.25 807.25 807.25
C64 815.25 815.25 815.25 815.25
C65 823.25 823.25 823.25 823.25
C66 831.25 831.25 831.25 831.25
C67 839.25 839.25 839.25 839.25
C68 847.25 847.25 847.25 847.25
C69 855.25 855.25 855.25 855.25
C70 863.25 863.25 863.25 863.25
C71 69.25 - - -
C72 76.25 - - -
C73 83.25 - - -
C74 90.25 - - -
C75 97.25 - - -
C76 59.25 - - -
C77 93.25 - - -
S01 105.25 104.75 103.25 105.25
S02 112.25 116.75 111.25 112.25
S03 119.25 128.75 119.25 119.25
S04 126.25 140.75 127.25 126.25
S05 133.25 152.75 135.25 133.25
S06 140.25 164.75 143.25 140.25
S07 147.25 176.75 151.25 147.25
S08 154.25 188.75 159.25 154.25
S09 161.25 200.75 167.25 161.25
S10 168.25 212.75 - 168.25
S11 231.25 224.75 - 231.25
S12 238.25 236.75 - 238.25
S13 245.25 248.75 255.25 245.25
S14 252.25 260.75 263.25 252.25
S15 259.25 272.75 271.25 259.25
S16 266.25 284.75 279.25 266.25
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CP830F Service Manual
CHANNEL EUROPE CCIR FRANCE GB(IRELAND) EAST OIRT
S17 273.25 296.75 287.25 273.25
S18 280.25 136.00 295.25 280.25
S19 287.25 160.00 303.25 287.25
S20 294.25 - - 294.25
S21 303.25 303.25 - 303.25
S22 311.25 311.25 311.25 311.25
S23 319.25 319.25 319.25 319.25
S24 327.25 327.25 327.25 327.25
S25 335.25 335.25 335.25 335.25
S26 343.25 343.25 343.25 343.25
S27 351.25 351.25 351.25 351.25
S28 359.25 359.25 359.25 359.25
S29 367.25 367.25 367.25 367.25
S30 375.25 375.25 375.25 375.25
S31 383.25 383.25 383.25 383.25
S32 391.25 391.25 391.25 391.25
S33 399.25 399.25 399.25 399.25
S34 407.25 407.25 407.25 407.25
S35 415.25 415.25 415.25 415.25
S36 423.25 423.25 423.25 423.25
S37 431.25 431.25 431.25 431.25
S38 439.25 439.25 439.25 439.25
S39 447.25 447.25 447.25 447.25
S40 455.25 455.25 455.25 455.25
S41 463.25 463.25 463.25 463.25
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CP830F Service Manual
1.3 ATSS SORTING METHOD
The TV set sweeps all the TV bands from beginning of VHF to end of UHF. The TV controlling software for each
program checks if a VPS CNI code is transmitted (this system exists for German, Swiss and Austrian transmissions).
If no VPS CNI code is found, then the system checks if a CNI code is transmitted as part of the teletext transmission
( Packet 8/30 format 1 and format 2). If such a code ( VPS or teletext ) is found and if this code is in the ATSS list, the
program is automatically named.
If the transmission does not have VPS CNI, and no teletext service is available, then there is no possibility of the
program being automatically named.
The programs found are then sorted in 4 groups :
Group I : It contains all the programs from the selected country and named by the TV controlling software. Within this
group the sorting order is fixed by the ATSS list.
Group II : It contains all the programs with a strong signal strength which are not listed in group I.
Group III : It contains all the programs with a weak signal strength which are not listed in group I.
Group IV : If two or more programs with the same code are found, only the strongest ( or if they have the same level
the one with the lowest frequency) is listed in group I, II or III. The others are listed in group IV.
1.3.1 GENERAL CASE 1.3.2 SPECIAL CASE
Program Program
Group Skip Group Skip
number number
1 1
2 Group I ... Group II
... m
n m+1
n+1 ... Group III
... Group II p
m p+1
m+1 ... Group IV
... Group III q
p q+1
p+1 ... not used
... Group IV 99
q 0
q+1 Special case : Country selection = Others
... not used
99
0
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CP830F Service Manual
Note : If two programs with the same name but a different code are found these two programs
are listed in group I, II or III .
The sorting order within group II, III, and IV is based on the channel frequency. The program
with the lowest frequency is allocated the first rank in its group, and so forth until the last
program of the group which has the highest frequency.
Special case : France
If France is selected, the TV controlling software first sweeps all TV bands with France system
selected ( positive video modulation) and then a second time with Europe system selected (
negative video modulation).
Special case : Switzerland
If Switzerland is selected the TV controlling software first sweeps all TV bands with Europe
system selected (negative video modulation) and then a second time with France system
selected ( positive video modulation).
Special case : GB
Note for satellite receiver users : Before starting ATSS turn on your satellite receiver and tune to
SKY NEWS .
If GB is selected the TV controlling software seeks for programs only in UHF ( C21 to C70 ).
The
sorting order is :
1 - BBC1
2 - BBC2
3 - ITV
4 - CH4
5 - CH5
6 ? NEWS (Sky News)
If two or more identical programs ( same name but different code e.g. BBC1 and BBC1
Scotland ) are found the following programs in the list will be shifted up. (1 - BBC1, 2 - BBC1, 3
-
BBC2, 4 - ITV, 5 - CH4, 6 - CH5, 7 - NEWS, ..)
If one of the programs above is not found, the associated program number remains empty (
freq.=467.25 MHz - Skip selected - no name ? system = GB).
example A : 1 - BBC1, 2 - BBC2, 3 - ITV, 4 - -----, 5 - CH5, 6 - NEWS, ...
example B ( if 2 BBC1 found ) : 1 - BBC1, 2 - BBC1, 3 - BBC2, 4 - ITV, 5 - -----, 6 - CH5, 7 -
NEWS, ...
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CP830F Service Manual
2 SAFETY INSTRUCTION
WARNING: Only competent service personnel may carry out work involving the testing or repair
of this equipment.
X-RAY RADIATION PRECAUTION
1. Excessive high voltage can produce potentially hazardous X-RAY RADIATION. To avoid
such hazards, the high voltage must not exceed the specified limit. The nominal value of the
high
voltage of this receiver is 25-26 KV (20 -21 ) or 26 KV (25 - 28 ) at max beam current. The
high
voltage must not, under any circumstances, exceed 27.5 KV (20 ), 29KV (21 ), 29.5 KV (25 )
or
30 KV (28 ). Each time a receiver requires servicing, the high voltage should be checked. It is
important to use an accurate and reliable high voltage meter.
2. The only source of X-RAY Radiation in this TV receiver is the picture tube. For continued
X-RAY RADIATION protection, the replacement tube must be exactly the same type tube as
specified in the parts list.
SAFETY PRECAUTION
Potentials of high voltage are present when this receiver is operating. Operation of the receiver
outside the cabinet or with the back board removed involves a shock hazard from the receiver.
Servicing should not be attempted by anyone who is not thoroughly familiar with the
precautions
necessary when working on high voltage equipment.
Discharge the high potential of the picture tube before handling the tube. The picture tube is
highly evacuated and if broken, glass fragments will be violently expelled.
If any Fuse in this TV receiver is blown, replace it with the FUSE specified in the Replacement
Parts List.
When replacing a high wattage resistor (metal oxide film resistor) in the circuit board, keep the
resistor 10 mm away from circuit board.
Keep wires away from high voltage or high temperature components.
This receiver must operate under AC 230 volts, 5O Hz. NEVER connect to a DC supply or any
other voltage or frequency.
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in this equipment have special safety-related
characteristics. These characteristics are often passed unnoticed by a visual inspection and the
X-RAY RADIATION protection afforded by them cannot necessarily be obtained by using
replacement components rated for higher voltage, wattage, etc. Replacement parts which have
these special safety characteristics are identified in this manual and its supplements, electrical
components having such features are identified by designated symbol on the parts list. Before
replacing any of these components, read the parts list in this manual carefully. The use of
substitutes replacement parts which do not have the same safety characteristics as specified in
the parts list may create X-RAY Radiation.
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CP830F Service Manual
3 ALIGNMENT INSTRUCTIONS
3.1MICROCONTROLLER CONFIGURATION : SERVICE MODE
To switch the TV set into service mode please see instruction below.
1 - Select PR. number 91
2 - Adjust sharpness to minimum and exit all menus.
3 - Within 2 seconds press the key sequence : RED - GREEN - menu
The software version is displayed beside the word Service, e.g. SERVICE V1.00 .
To exit SERVICE menu press menu key or Std By key.
3.2SERVICE MODE NAVIGATION
Pr Up/Down remote keys : cycle through the service items available.
Vol -/+ remote keys : Dec./Increment the values within range - Cycle trough option bits.
OK key : Toggle bits in option byte
Order Item Default setting
1 HOR CEN
2 RED GAIN
3 GRN GAIN
4 BLUE GAIN
5 RED BIAS
6 GRN BIAS
7 AGC LEVEL
8 G2 - SCREEN
9 AFT
10 OPTION1
11 OPTION2
12 PARABOLA
13 HOR WIDTH
14 CORNER T
15 CORNER B
16 HOR. PARAL
17 V. LINEAR
18 EW TRAPEZ
19 S CORRECT
20 VERT CENT
21 VERT SIZE
3.3 MICROCONTROLLER CONFIGURATION : OPTION BITS
There are two option bytes available (16 bits in all). These option bits are available from Service
mode. First find the OPTION1 or OPTION2 control, and then use the Volume PLUS/MINUS
buttons on the remote control keypad to locate the bits, and OK key to toggle them. The table
below shows the two option bytes available;
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CP830F Service Manual
3.3.1 OPTION 1
B7 B6 B5 B4 B3 B2 B1 B0
TOP FASTEXT TUBE Headphone Dolby SVHS Tuner options
1 text (FLOF) 4:3 Volume/Balance Virtual 3 00 = Philips
OFF OFF control OFF OFF disable 01 = not used
TOP FASTEXT TUBE Headphone Dolby SVHS 10 = ALPS
0 text ON (FLOF) 16:9 Volume/Balance Virtual 3 11 = PARTSNIC
ON control ON ON enable (DW)
3.3.2 OPTION 2
B7 B6 B5 B4 B3 B2 B1 B0
1 Fixed to `0' JVC remote control AVL control OFF PICTURE TILT ON Program list enabled See table below.
0 Daewoo Remote control AVL control ON PICTURE TILT OFF Program list disabled
Beam Current
Tube (mA) B2 B1 B0
Nominal Max
0.95 1.10 0 0 0
1.00 1.15 0 0 1
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