CP-850F_SM.pdf

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CP-850/F
S/M No.TCP850FEF0
Service Manual
CHASSIS : CP-850/F
MODEL : DTK-28
DTK-29
Caution
: In this Manual, some parts can be changed for improving. their
performance without notice in the parts list. So, if you need the
latest parts information, please refer to PPL(Parts Price List)in
Service Information Center.
JUN.2006
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CP-850/F Service Manual
CONTENTS
1 MAIN FEATURES
5
1.1 SPECIFICATIONS
5
1.1.1 GENERAL
5
1.2 CHANNEL/FREQUENCY TABLE
6
1.3 ATSS SORTING METHOD
9
1.3.1 GENERAL CASE
9
2 SAFETY INSTRUCTION
11
3 ALIGNMENT INSTRUCTIONS
12
3.1 MICROCONTROLLER CONFIGURATION : SERVICE MODE
12
3.2 SERVICE MODE NAVIGATION
12
3.3 MICROCONTROLLER CONFIGURATION : OPTION BITS
12
3.3.1 OPTION 1
13
3.3.2 OPTION 2
13
3.4 TV SET ALIGNMENT
13
3.4.1 LOCAL OSCILLATOR ALIGNMENT
13
3.4.2 G2 ALIGNMENT
13
3.4.3 WHITE BALANCE
14
3.4.4 FOCUS
14
3.4.5 VERTICAL GEOMETRY
14
3.4.6 HORIZONTAL PICTURE CENTRING
14
3.4.7 EAST / WEST CORRECTION
14
3.4.8 AGC
15
4 IC DESCRIPTION
16
4.1 TELETEXT DECODER WITH EMBEDDED 8-BIT CONTROLLER
16
4.1.1 BLOCK DIAGRAM OF THE SDA55XX
16
4.1.2 DESCRIPTION
16
4.1.3 IC MARKING AND VERSION
17
4.1.4 PINNING
17
4.2 VSP9405 - SCAN RATE CONVERTER INCLUDING MULTISTANDARD COLOUR
DECODER
18
4.2.1 BLOCK DIAGRAM OF THE VSP9405
19
4.2.2 DESCRIPTION
19
4.2.3 PINNING
21
4.3 DDP 3315C - DISPLAY AND DEFLECTION PROCESSOR
26
4.3.1 BLOCK DIAGRAM OF THE DDP 3315C
26
4.3.2 DESCRIPTION
27
4.3.3 PINNING
29
4.4 MSP341X MULTISTANDARD SOUND PROCESSOR
31
4.4.1 BASIC FEATURES OF THE MSP 341X
31
4.4.1.1 Demodulator & NICAM Decoder Section
31
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CP-850/F Service Manual
4.4.1.2 DSP-Section (Audio Baseband Processing) 32
4.4.1.3 Analogue Section 32
4.4.1.4 NICAM & FM/AM-Mono 32
4.4.1.5 German 2-Carrier System (DUAL FM System) 32
4.5 TDA4470 - MULTISTANDARD VIDEO-IF AND QUASI PARALLEL SOUND PROCESSOR 35
4.5.1 DESCRIPTION
35
4.5.2 FEATURES
35
4.5.3 PINNING
35
4.5.4 BLOCK DIAGRAM
36
4.6 TDA894XJ STEREO AUDIO AMPLIFIER
37
4.6.1 FEATURES
37
4.7 TDA835XJ VERTICAL AMPLIFIER
38
4.7.1 TDA8353J
38
4.8 TDA6108JF
40
4.9 24C16 - 16 KB EEPROM
41
4.10 STR - W6754
42
4.10.1 GENERAL DESCRIPTION
42
4.10.2 FEATURES
42
4.10.3 BLOCK DIAGRAM
42
4.10.4 ELECTRICAL CHARACTERISTICS
43
5 CP-850/F CHASSIS DESCRIPTION
45
5.1 BLOCK DIAGRAM
45
5.2 IF SECTION
46
5.2.1 BLOCK DIAGRAM
46
5.2.2 VISION IF AMPLIFIER
47
5.2.3 TUNER-AND VIF-AGC
47
5.2.4 FPLL, VCO AND AFC
47
5.2.5 VIDEO DEMODULATION AND AMPLIFIER
48
5.2.6 SOUND IF AMPLIFIER AND SIF-AGC
48
5.2.7 QUASI-PARALLEL-SOUND (QPS) MIXER
48
5.2.8 STANDARD SWITCH
48
5.2.9 L SWITCH
48
5.2.10 INTERNAL VOLTAGE STABILISER
48
5.3 VIDEO / RGB
5.3.1 FRONT END
48
5.3.1.1 CVBS Front-End
48
5.3.1.2 Input Selector
49
5.3.1.3 Signal Levels And Gain Control
49
5.3.1.4 Synchronization
49
5.3.1.5 Chroma Decoder
49
5.3.1.6 Luminance Processing
49
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CP-850/F Service Manual
5.3.1.7 RGB Front-End
49
5.3.1.8 Signal Processing
49
5.3.1.8.1 Horizontal Prescaler
49
5.3.1.8.2 Noise Reduction
50
5.3.1.8.3 Noise Measurement
50
5.3.1.8.4 Operation Modes
50
5.3.1.8.5 Digital 656 Output
50
5.3.2 BACK END
50
5.3.2.1 Digital Input Interface
50
5.3.2.2 Horizontal Scaler
50
5.3.2.3 Luma Contrast and Brightness
50
5.3.2.4 Black Level Expander/Compressor (BLEC)
50
5.3.2.5 Luma Sharpness Enhancer (LSE)
51
5.3.2.6 Dynamic Peaking
51
5.3.2.7 Luma Transient Improvement (LTI)
51
5.3.2.8 Mixing of Dynamic Peaking and LTI
51
5.3.2.9 Chroma Transient Improvement
51
5.3.2.10 Analog Back End
52
5.3.2.11 Analog RGB Insertion
52
5.3.2.12 CRT Measurement and Control
52
5.3.2.13 Synchronization and Deflection
53
5.3.2.14 EHT Compensation
53
5.4 MICROCONTROLLER
53
5.4.1 MICROCONTROLLER FEATURES
53
5.4.2 ACQUISITION FEATURES
54
5.4.3 PORTS
54
5.4.4 CONTROLLER I/O PIN CONFIGURATION AND FUNCTION TABLE
54
5.4.5 OVER CURRENT PROTECTION
55
5.5 TELETEXT DISPLAY
55
5.6 SOUND PROCESSING
56
5.6.1 ANALOGUE SOUND IF - INPUT SECTION
56
5.6.2 QUADRATURE MIXERS
56
5.6.3 PHASE AND AM DISCRIMINATION
56
5.6.4 NICAM DECODER
57
5.6.5 DSP SECTION
57
5.6.6 SOUND MODE SWITCHING
57
5.7 SOUND AMPLIFICATION
57
5.7.1 POWER AMPLIFIER
57
5.7.2 MODE SELECTION
57
5.8 VERTICAL DEFLECTION
58
5.8.1 FLYBACK VOLTAGE
58
5.8.2 PROTECTION
58
5.8.3 GUARD CIRCUIT
58
5.8.4 DAMPING RESISTOR
58
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CP-850/F Service Manual
5.8.5 EAST-WEST AMPLIFIER (TDA8358J ONLY)
58
6 SERVICE PARTS LIST
59
7 SCHEMATIC DIAGRAM
66
8 PRINTED CIRCULT BOARD
67
9 EXPLODED VIEW
69
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