Page 2 - Contents
- 1 - Contents 1 - Main features ........................................................................................................................................................ 4 1-1 Specifications ................................................................................................
Page 4 - rt
Fo - 3 - 5-4-1 Introduction........................................................................................................................................... 495-4-2 CPU ............................................................................................................................
Page 6 - Specification matrix
CHASSIS NAME WP895 WP895F CP885 CP885F VCT VERSION 3834 3834 3832 3834 SOFTWARE VERSION A A B A REMOTE CONTROL R46G22 R46G22 R46G22 R46G22 PCB SERIAL NUMBER 4859805093 4859805193 4859805093 4859805193 TUBE 16:09 16:9 REAL FLAT 4:03 4:3 REAL FLAT SVHS3 "PICTURE IMPROVE- MENTS, COMB FILTER, HORIZO...
Page 7 - Green Earth; Pin Signal Description Matching value
- 6 - Service manual WP 895/895F, CP885/885F 21 Pin EURO-SCART 1 : Pin Signal Description Matching value 1 Audio Output Right 0.5 Vrms, Impedance < 1 , ( RF 54% Mod )2 Audio Input Right 0.5 Vrms, Impedance > 103 Audio Output Left 0.5 Vrms, Impedance < 1 , ( RF 54% Mod )4 Audio Earth5 Blue E...
Page 12 - -3 ATSS sorting method; Special case : Country selection = Others
- 11 - Service manual WP 895/895F, CP885/885F 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 eachpro gram checks if a VPS CNI code is transmitted ( this system exists for Ger man, Swiss and Austrian transmissions).If no...
Page 13 - Special case : France
- 12 - Service manual WP 895/895F, CP885/885F The sor ting order within group II, III, and IV is based on the channel frequency. The Pro g ram with the lo westfrequency is allocated the first rank in its group, and so f o rth until the last program of the group which has thehighest fr equency. If Fr...
Page 14 - when working on high voltage equipment.; PRODUCT SAFETY NOTICE
- 13 - Service manual WP 895/895F, CP885/885F 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 h...
Page 17 - Service manual WP 895
HOR PARAL H BOW HOR WIDTH PARAROLA 3-4-6- Horizontal picture centringAdjust HOR CEN(Horizontal center) to have the picture in the center of the screen. 3-4-7- Eau/West comectionAdjust the PARABOLA, HOR WIDTH, CORNER, HOR PARAL, EW TRAPEZ, H BOW, to compensate forgeometrical distorrin, Service manual...
Page 22 - PSDIP; GNDP1 SUPPLY
- 21 - Service manual WP 895/895F, CP885/885F IC marking English, French,German, Italian,Spanish, Dutch,Danish, Finnish,Norwegian, Swedish,Greek, Polish,Hungarian, Czech,Slovakian, Romanian,Russian. • Inventory of transmitted Teletext pages stored in the Page Table• Signal quality detector for WST d...
Page 42 - - Circuit description
- 41 - Service manual WP 895 /895F, CP885/885F 5 - Circuit description 5-1 Block diagram
Page 43 - generation and the video demodulator.
- 42 - Service manual WP 895/895F, CP885/885F 5-2 IF section 5-2-1 Block diagram The video IF signal (VIF) is fed through a SAW filter to the differential input (Pin 6-7) of the VIF amplifier. 5-2-2 Vision IF Amplifier This amplifier consists of three AC-coupled amplifier stages. Each differential a...
Page 44 - SAW filters
- 43 - Service manual WP 895/895F, CP885/885F SAW filters Ref. Standard FeaturesK3953M B/G - D/K - I - L/L’ - IF filter for video application - TV IF filter with Nyquist slopes at 33.9 MHz and38.9 MHz- Constant group delay K9650M B/G - D/K - I - L/L’ - IF filter for audio application - TV IF audio f...
Page 46 - -3-6 Digitally Controlled Clock Oscillator
- 45 - Service manual WP 895/895F, CP885/885F 5-3 Video - VCT description 5-3-1 Introduction The VCT 38xxA includes complete video, display, and deflection processing.All processing is done digitally, the video front-end and video back-end are interfacing to the analogue world.Most functions can be ...
Page 53 - The terms used in the schematic are described below
- 52 - Service manual WP 895/895F, CP885/885F The following schematic, illustrates the logic of control for the two SCART connectors. The terms used in the schematic are described below ; 1. AUTO represents a situation where the television has self-selected its picture source. This could be when the...
Page 54 - -5 Teletext Display
- 53 - Service manual WP 895/895F, CP885/885F can always be overridden by the user after the event.Each line on the diagram, with its associated text, represents the exact conditions under which the change of state willoccur. Sometimes this will be accompanied by another action which will be automat...
Page 56 - Autodetect” is stored for each programme.
- 55 - Service manual WP 895/895F, CP885/885F 5-6-4 NICAM decoder In case of NICAM - mode, the phase samples are decoded according the DQPSK - coding scheme. The output of thisblock contains the original NICAM bitstream. 5-6-5 DSP section All audio baseband functions are performed by digital signal ...
Page 57 - -8 Vertical deflection; . The principle of operation with two supply; The guard signal is not used.
- 56 - Service manual WP 895/895F, CP885/885F 5-7-2 Mode selection The TDA894xJ has several functional modes, which can be selected by applying the proper DC voltage to pin MODE. Mute : In this mode the amplifier is DC biased but not operational (no audio output). This allows the input couplingcapac...
Page 58 - -9-2 Power supply primary part operations
- 57 - Service manual WP 895/895F, CP885/885F 5-9 Power supply (STR F6654) 5-9-1 STR-F6654 general description The STR-F6654 is an hybrid IC with a build-in MOSFET and control IC, designed for flyback converter type switchmode power supply applications. 5-9-2 Power supply primary part operations An ...
Page 61 - When the pin 1 voltage reaches the threshold voltage V
- 60 - Service manual WP 895/895F, CP885/885F When the MOSFET is ON, the STR-F6654 internal capacitor C1 is charged at the constant voltage 6.5V.At the same time, the voltage at pin 1 (OCP / FB) increases with the same waveform as the MOSFET drain current. When the pin 1 voltage reaches the threshol...
Page 63 - 4 and picture appears on screen.
- 62 - Service manual WP 895 /895F, CP885/885F . If the TV set was on normal run mode before switching off, the microcontroller delivers horizontal drive voltage at pin 24 and picture appears on screen. . If the TV set was on stand-by mode before switching off, the microcontroller switches TV set to...
Page 67 - Fig : I810 controlled rectifier switching circuit
- 66 - Service manual WP 895/895F, CP885/885F I 8 1 0 C O N T R O L L E D R E C T I F I E R R 8 2 0 R 8 3 0 C 8 3 0 R 8 2 9 Q 8 0 8 6 V D C Q 8 0 9 Q 8 0 7 H I G H H I G H H I G H L O W P O W E R L O W Fig : I810 controlled rectifier switching circuit * TV set stand-by mode operations - On stand-by ...
Page 68 - Service Parts List; CAUTION; “ ” Parts recommended for stock.
Service Manual WP-895/895F, CP885/885F - 67 - 6. Service Parts List (DWX - 28W5 ) CAUTION “ ” Parts recommended for stock. “ ® ” Safety critical componen, Replace only with genuine Deawoo safety par ts. LOC PART CODE PART NAME DECSCRIPTION REMARK LOC PART CODE PART NAME DESCRIPTION REMARK M211 48521...
Page 83 - PRINTED CIRCUIT BOARD; PCB MAIN