Akira CT-21CBS5CPH Service Manual

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Model no.:CT-21CBS5CPH.doc version 1.0 10 PICTURE TUBE REMOVAL CAUTION: Do not disturb the deflection yoke or magnet assembly on the pictur

Model no.:CT-21CBS5CPH.doc version 1.0 11 ADJUSTMENTS SET-UP ADJUSTMENTS The following adjustments should be made when a complete realignm

Model no.:CT-21CBS5CPH.doc version 1.0 12 2. Convergence Adjustment Preparation: Before attempting any convergence adjustment, the TV shoul

Model no.:CT-21CBS5CPH.doc version 1.0 13 3. White Balance Adjustment Generally, white balance adjustment is made with professional equipmen

Model no.:CT-21CBS5CPH.doc version 1.0 14 CIRCUIT ADJUSTMENTS Preparation: Circuit adjustments should be made only after completion of set-

Model no.:CT-21CBS5CPH.doc version 1.0 15 3. High Voltage Inspection Measure voltages of test points on the main PCB with the digital voltme

Model no.:CT-21CBS5CPH.doc version 1.0 16 6. SERVICE mode 6.1 To enter the DESIGN/SERVICE mode Set the volume to 0. Then press and hold th

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Model no.:CT-21CBS5CPH.doc version 1.0 2 Model: CCCTTT---222111CCCBBBSSS555CCCPPPHHH CCChhhaaassssssiiisss:::EEETTTAAA---111

Model no.:CT-21CBS5CPH.doc version 1.0 20 STRUCTURE and CHASSIS FUNCTION DESCRIPTION 1. BLOCK DIAGRAM

Model no.:CT-21CBS5CPH.doc version 1.0 21 2. CHASSIS DESCRIPTION General Description ETA-1 chassis is applied in SF21GA63 series. By use

Model no.:CT-21CBS5CPH.doc version 1.0 22 SERVICE DATA TECHNICAL DATA OF KEY ICS 1.MCU and Signal Processor for a PAL/NTSC TV TMPA8873C

Model no.:CT-21CBS5CPH.doc version 1.0 23 2. FEATURE

Model no.:CT-21CBS5CPH.doc version 1.0 24 3. BLOCK DIAGRAM

Model no.:CT-21CBS5CPH.doc version 1.0 25 4.Basic Structure 1. Internal Connections TMPA8873 has two pieces of IC chip in one package, usin

Model no.:CT-21CBS5CPH.doc version 1.0 26 5. TERMINAL INTERFACE

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Model no.:CT-21CBS5CPH.doc version 1.0 3 CONTENTS SAFETY INSTRUCTIONS AND MAINTENANCE...

Model no.:CT-21CBS5CPH.doc version 1.0 30 SIGNAL PROCESSOR BLOCK

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Model no.:CT-21CBS5CPH.doc version 1.0 34 Microcontrollers Descriptions (MROM version: TMPA8873CMANG / CPANG / CRANG /CSANG)

Model no.:CT-21CBS5CPH.doc version 1.0 35 2. TFA9842AJ 2-channel audio amplifier with volume control (SE: 1 W to 7.5 W) 1. General Descript

Model no.:CT-21CBS5CPH.doc version 1.0 36 3. Block Diagram

Model no.:CT-21CBS5CPH.doc version 1.0 37 4.2 Pin Description

Model no.:CT-21CBS5CPH.doc version 1.0 38 4. VERTICAL SCAN OUTPUT STAGE CIRCUIT LA78040/LA78041 Both LA78040/LA78041 are vertical scan output

Model no.:CT-21CBS5CPH.doc version 1.0 39 5. EEPROM AT24C04/08/16 1) Features Low-voltage and Standard-voltage Operation -2.7 (Vcc=2.7V

Model no.:CT-21CBS5CPH.doc version 1.0 4 SERVICE SAFETY AND MAINTENANCE WARNING: BEFORE EXAMINING AND SERVICING THIS CHASSIS READ CARE

Model no.:CT-21CBS5CPH.doc version 1.0 40 3) Pin Configuration 4) Pin Description SERIAL CLOCK (SCL): The SCL input is used to positive edg

Model no.:CT-21CBS5CPH.doc version 1.0 41Table 13 Part of the Array Protected WP PIN Status 24C01A 24C02 24C04 24C08 24C16 At Vcc Full (1K) Ar

Model no.:CT-21CBS5CPH.doc version 1.0 42 7. SWITCH-MODE POWER SUPPLY IC STRG5653/G8656 1). General Description The STRG5653/G8656 are part

Model no.:CT-21CBS5CPH.doc version 1.0 43 SERVICE DATA OF KEY ICs Table 16 Ground Resistance of TMPA8873 Pins

Model no.:CT-21CBS5CPH.doc version 1.0 44 Table 17 Operating Voltage of TMPA8873(N202)’s Pins

Model no.:CT-21CBS5CPH.doc version 1.0 45 Table 18 Functions and Service Data TFA9842J’s Pins Table 20 Functions and Service Data LA78040

Model no.:CT-21CBS5CPH.doc version 1.0 46 Table 21 Functions and Service Data of AT24C08 / 16 Pins Table 22 Functions and Service Data of

Model no.:CT-21CBS5CPH.doc version 1.0 47 APPENDIX

Model no.:CT-21CBS5CPH.doc version 1.0 49 REPLACEMENT PARTS LIST PART CODE PART NAME SPECIFICATION QTY LOCATION 883370281G007 POWE

Model no.:CT-21CBS5CPH.doc version 1.0 5 SAFETY PRECAUTION WARNING: REFER SERVICING TO QUALIFIED SERVICE PERSONNEL ONLY. 1. The TV has

Model no.:CT-21CBS5CPH.doc version 1.0 50PART CODE PART NAME SPECIFICATION QTY LOCATION 51113331JU0 CARBON RES. RT13-0.166W-330J 2 R

Model no.:CT-21CBS5CPH.doc version 1.0 51PART CODE PART NAME SPECIFICATION QTY LOCATION 5253F103Z10 CERAMIC CAP. CT1-63V-08C-2F4-10

Model no.:CT-21CBS5CPH.doc version 1.0 52PART CODE PART NAME SPECIFICATION QTY LOCATION 50620071930 CARBON RES. RT13-0.166W-56J 1 R9

Model no.:CT-21CBS5CPH.doc version 1.0 6 PRODUCT SAFETY NOTICE CAUTION: FOR YOUR PROTECTION THE FOLLOWING PRODUCT SAFETY NOTICE SHOULD

Model no.:CT-21CBS5CPH.doc version 1.0 7 SAFETY SYMBOL DESCRIPTION

Model no.:CT-21CBS5CPH.doc version 1.0 8 MAINTENANCE 1. Place the TV set on a stable stand or base that is of adequate size and stre

Model no.:CT-21CBS5CPH.doc version 1.0 9 MECHANICA DISASSEMBLIES CABINET BACK REMOVAL 1. Refer to Figure 1, remove 7screws. 2. Pull o