CAUTION:
Before servicing this chassis, it is important that the service technician read the "Safety
Precautions" and "Product Safety Notices" in this service manual.
ATTENTION:
Avant d'effectuer l'entretien du châassis, le technicien doit lire les «Précautions de sécurité»
et les «Notices de sécurité du produit» présentés dans le présent manuel.
VORSICHT:
Vor Öffnen des Gehäuses hat der Service-Ingenieur die ,,Sicherheitshinweise" und ,,Hinweise
zur Produktsicherheit" in diesem Wartungshandbuch zu lesen.
SERVICE MANUAL
MANUEL D'ENTRETIEN
WARTUNGSHANDBUCH
Data contained within this Service
manual is subject to alteration for
improvement.
Les données fournies dans le présent
manuel d'entretien peuvent faire l'objet
de modifications en vue de perfectionner
le produit.
Die in diesem Wartungshandbuch
enthaltenen Spezifikationen können sich
zwecks Verbesserungen ändern.
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
Colour Television
December 2003
No. 0113
C28W460N
CL28W460N
C28WF560N
CL28WF560N
C32WF560N
CL29F60N
i
No. 0113 Service Manual
TABLE OF CONTENTS
1.INTRODUCTION.............................................................................................................................. 1
2.TUNER................................................................................................................................................ 1
3.IF PART (TDA9885/86) ................................................................................................................. 1
4.VIDEO SWITCH TEA6415 ........................................................................................................... 2
5.MULTI STANDARD SOUND PROCESSOR .......................................................................... 2
6.SOUND OUTPUT STAGE WITH TDA7269A......................................................................... 2
7.BERTICAL OUTPUT STAGE WITH STV9379FA ................................................................ 2
8.VIDEO OUTPUT AMPLIFIER TDA6108.................................................................................. 2
9.POWER SUPPLY (SMPS) ........................................................................................................... 3
10.MICROCONTROLLER SDA55XX........................................................................................... 3
10.1.General Features ......................................................................................................................... 3
10.2.External Crystal and Programmable Clock Speed................................................................... 3
10.3.Microcontroller Features ............................................................................................................ 3
10.4.Memory ......................................................................................................................................... 3
10.5.Display Features .......................................................................................................................... 3
10.6.Acquisition Features ................................................................................................................... 4
10.7.Ports.............................................................................................................................................. 4
11.CLASS AB STEREO HEADPHONE DRIVER TDA1308................................................. 4
12.SAW FILTERS ............................................................................................................................... 4
13.IC DESCRIPTIONS ...................................................................................................................... 5
13.1.LM317T ..................................................................................................................................... 5
13.1.1.Description ............................................................................................................................ 5
13.1.2.Features ................................................................................................................................. 5
13.2.TDA1308T................................................................................................................................5
13.2.1.General Description.............................................................................................................. 5
13.2.2.Features ................................................................................................................................. 5
13.2.3.Pinning ................................................................................................................................... 6
13.3.MSP34X0G (MSP3410G).................................................................................................... 6
13.3.1.Description ............................................................................................................................ 6
13.3.2.Features ................................................................................................................................. 7
13.3.3.Pin connections .................................................................................................................... 7
13.4.VDP313xY................................................................................................................................8
13.4.1.Introduction ........................................................................................................................... 8
13.4.2.Features ................................................................................................................................. 9
13.4.3.Pin Connections and short descriptions............................................................................ 9
13.5.TEA6415C.............................................................................................................................. 10
13.5.1.General Description............................................................................................................ 10
13.5.2.Features ............................................................................................................................... 10
13.5.3.Pinning ................................................................................................................................. 11
13.6.STV9379FA ........................................................................................................................... 11
13.6.1.Description .......................................................................................................................... 11
13.6.2.Features ............................................................................................................................... 11
13.6.3.Pinning ................................................................................................................................. 11
13.7.TDA7269A.............................................................................................................................. 12
13.7.1.Description .......................................................................................................................... 12
13.7.2.Features ............................................................................................................................... 12
13.8.LM7800 (LM7805/LM7808) .............................................................................................. 12
13.8.1.Description .......................................................................................................................... 12
13.8.2.Features ............................................................................................................................... 12
13.9.AT24C08................................................................................................................................. 12
13.9.1.Description .......................................................................................................................... 12
13.9.2.Features ............................................................................................................................... 12
13.9.3.Pin Configurations.............................................................................................................. 13
ii
No. 0113 Service Manual
13.10.SDA5555.............................................................................................................................. 13
13.10.1.General definition ............................................................................................................. 13
13.10.2.Features ............................................................................................................................. 13
13.11.MC44608.............................................................................................................................. 14
13.11.1.Description ........................................................................................................................ 14
13.11.2.General Features............................................................................................................... 15
13.11.3.Pin Connections................................................................................................................ 15
13.12.TCET1102G ........................................................................................................................ 16
13.12.1.Description ........................................................................................................................ 16
13.12.2.Applications ...................................................................................................................... 16
13.12.3.Features ............................................................................................................................. 16
13.13.TDA9885T............................................................................................................................ 16
13.13.1.General Description.......................................................................................................... 16
13.13.2.Features ............................................................................................................................. 16
13.13.3.Pinning............................................................................................................................... 17
13.14.PI5V330 ................................................................................................................................17
13.14.1.General Description.......................................................................................................... 17
14. PRODUCTION SERVICE MODE ADJUSTMENTS........................................................ 18
14.1.SERVICE MENU ......................................................................................................................... 18
14.2.ADJUST MENU........................................................................................................................... 18
14.3.OPTIONS MENU......................................................................................................................... 30
Option 0. Video Processor Crystal Indication............................................................................. 30
Option 1. (0x01) Video Processor Decoder Mode Register ....................................................... 30
Option 2. (0x18) Video Processor Blanking Control .................................................................. 30
Option 3. (0x19) Video Processor Cathode Drive Level............................................................. 31
Option 4........................................................................................................................................... 31
Option 5. CTI Available, Mono AVL .............................................................................................. 31
Option 6........................................................................................................................................... 31
Option 7. OPTIONHOTELACTIVE, PLL_VST, PIP Zoom Mode, PIP Position........................... 31
Option 8. IF Frequency .................................................................................................................. 32
Option 9. Standard Available ........................................................................................................ 32
Option 10. Scart, Comb filter, Teletext, Language ..................................................................... 33
Option 11. PLL Tuner Control 1 Byte........................................................................................... 33
Option 12. PLL Tuner Control 2 Low Byte................................................................................... 33
Option 13. PLL Tuner Control 2 Mid Byte.................................................................................... 34
Option 14. PLL Tuner Control 2 High Byte.................................................................................. 34
Option 15. PLL Tuner VHF LOW VHF HIGH Crossover Low Byte ......................................... 34
Option 16. PLL Tuner VHF LOW VHF HIGH Crossover High Byte......................................... 34
Option 17. PLL Tuner VHF HIGH UHF Crossover Low Byte................................................... 34
Option 18. PLL Tuner VHF HIGH UHF Crossover High Byte .................................................. 34
Option 19. PIP PLL Tuner Control 1 Byte .................................................................................... 35
Option 20. PIP PLL Tuner Control 2 Low Byte............................................................................ 35
Option 21. PIP PLL Tuner Control 2 Mid Byte............................................................................. 35
Option 22. PIP PLL Tuner Control 2 High Byte ........................................................................... 35
Option 23. PIP PLL Tuner VHF LOW VHF HIGH Crossover Low Byte................................... 35
Option 24. PIP PLL Tuner VHF LOW VHF HIGH Crossover High Byte.................................. 35
Option 25. PIP PLL Tuner VHF HIGH UHF Crossover Low Byte ............................................ 36
Option 26. PIP PLL Tuner VHF HIGH UHF Crossover High Byte ........................................... 36
Option 27. Language Available 1.................................................................................................. 36
Option 28. Language Available 2.................................................................................................. 36
Option 29. Language Available 3 and Zoom Mode Available.................................................... 36
Option 30. Country......................................................................................................................... 37
Option 31. Prescaler MSP FM (AVL=OFF) ................................................................................... 37
Option 32. Prescaler MSP NICAM (AVL=OFF) ............................................................................ 37
Option 33. Prescaler MSP SCART (AVL=OFF)............................................................................ 38
Option 34. Prescaler MSP I2S (AVL=OFF)................................................................................... 38
Option 35. Not used ....................................................................................................................... 38
Option 36. Not used ....................................................................................................................... 38
Option 37. Reserved for USA........................................................................................................ 38
Option 38. TV Teletext Mode Selection, Child Lock, Equalizer Country .................................. 38
iii
No. 0113 Service Manual
Option 39. Personal Preference Equalizer Band 1 ..................................................................... 39
Option 40. Personal Preference Equalizer Band 2 ..................................................................... 39
Option 41. Personal Preference Equalizer Band 3 ..................................................................... 39
Option 42. Personal Preference Equalizer Band 4 ..................................................................... 39
Option 43. Personal Preference Equalizer Band 5 ..................................................................... 39
Option 44. Sound Effect (Standard; Music; Speech; Jazz; Pp)................................................. 39
Option 45. Volume Offset Left ...................................................................................................... 39
Option 46. Volume Offset Right.................................................................................................... 39
Option 47. Volume Offset Center ................................................................................................. 40
Option 48. Volume Offset Rear ..................................................................................................... 40
Option 49. Surround Delay............................................................................................................ 40
Option 50. FM Prescale ................................................................................................................. 40
Option 51. NICAM Prescale........................................................................................................... 40
Option 52. Scart Input Prescale.................................................................................................... 40
Option 53. I2S Prescale ................................................................................................................. 40
Option 54. Scart Output Prescale................................................................................................. 40
Option 55. Speaker Setup ............................................................................................................. 41
Option 56. Audio Options Available Or Not ................................................................................ 41
Option 57. Stereo Threshold......................................................................................................... 41
Option 58. MSP Audio Flags ......................................................................................................... 42
Option 59. NICAM Threshold ........................................................................................................ 42
Option 60. Power Delay Time........................................................................................................ 42
14.4.OPTION TABLE RECOMMENDED VALUES ............................................................................ 45
14.5.SCREEN ADJUSTMENT (FBT SCREEN) ................................................................................. 47
14.6.GEOMETRY ADJUSTMENT ...................................................................................................... 48
4:3 FORMATS ................................................................................................................................. 48
16:9 FORMATS ............................................................................................................................... 49
16.BLOCK DIAGRAM ..................................................................................................................... 56
17.CIRCUIT DIAGRAMS ................................................................................................................ 57
1
No. 0113 Service Manual
1.INTRODUCTION
This is a 50Hz colour television capable of driving 24" + CRT sizes (beginning from 24" 16:9 up to 33").
The chassis is capable of operation in PAL, SECAM, NTSC (playback) colour standards and multiple
transmission standards as B/G, D/K, I/I', and L/L´.
Sound system output is supplying 2x10W (10%THD) for left and right outputs of 8ohm speakers.
TV supports FASTTEXT. It is possible to decode transmissions including high graphical data.
The chassis is equipped with three full EuroScarts, only one of them supports RGB input, one
headphone output, one FAV input, one SVHS input (via SCART)
2.TUNER
The hardware and software of the TV is suitable for tuners, supplied by different companies, which are
selected from the Service Menu. These tuners can be combined VHF, UHF tuners suitable for CCIR
systems B/G, H, L, L´, I/I´, and D/K. The tuning is available through the digitally controlled I
2C bus
(PLL). Below you will find info on one of the Tuners in use.
General description of UV1316:
The UV1316 tuner belongs to the UV 1300 family of tuners, which are designed to meet a wide range of
applications. It is a combined VHF, UHF tuner suitable for CCIR systems B/G, H, L, L', I and I'. The low
IF output impedance has been designed for direct drive of a wide variety of SAW filters with sufficient
suppression of triple transient.
Features of UV1316:
1. Member of the UV1300 family small sized UHF/VHF tuners
2. Systems CCIR: B/G, H, L, L', I and I'; OIRT: D/K
3. Digitally controlled (PLL) tuning via I
2C-bus
4. Off-air channels, S-cable channels and Hyperband
5. World standardi
sed mechanical dimensions and world standard pinning
6. Compact size
7. Complies to "CENELEC EN55020" and "EN55013"
Pinning:
1.
Gain control voltage (AGC) :
4.0V, Max: 4.5V
2.
Tuning voltage
3.
I²C-bus address select
:
Max: 5.5V
4.
I²C-bus serial clock
:
Min:-0.3V, Max: 5.5V
5.
I²C-bus serial data
:
Min:-0.3V, Max: 5.5V
6.
Not connected
7.
PLL supply voltage
:
5.0V, Min: 4.75V, Max: 5.5V
8.
ADC input
9.
Tuner supply voltage
:
33V, Min: 30V, Max: 35V
10. Symmetrical IF output 1
11. Symmetrical IF output 2
3.IF PART (TDA9885/86)
The TDA9885 is an alignment-free single standard (without positive modulation) vision and sound IF signal
PLL.
The TDA9886 is an alignment-free multi-standard (PAL, SECAM and NTSC) vision and sound IF signal PLL
Both devices can be used for TV, VTR, PC and set-top box applications.
The following figure shows the simplified block diagram of the integrated circuit.
The integrated circuit comprises the following functional blocks:
VIF amplifier, Tuner and VIF-AGC, VIF-AGC detector, Frequency Phase-Locked Loop (FPLL) detector, VCO
and divider, Digital acquisition help and AFC, Video demodulator and amplifier, Sound carrier trap, SIF
amplifier, SIF-AGC detector, Single reference QSS mixer, AM demodulator, FM demodulator and acquisition
help, Audio amplifier and mute time constant, I2C-bus transceivers and MAD (module address), Internal
voltage stabilizer.