Panasonic CT-2022HE - Table of Contents

-3-
Importantsafetynotice................... 2
Safetyprecautions................. 2
Leakage current cold check . . . . . . . . . . 2
Leakage current hot check . . . . . . . . . . . 2
X-rayradiation .................... 2
Highvoltage(crtanode)............. 2
Servicenotes........................... 4
Leadless chip component
(surfacemount) ................... 4
Componentremoval................ 4
Chip component installation . . . . . . . . . . 4
Howtoreplaceflat-IC............... 4
X-Ray protection circuit check
&adjustments ................. 5
Locationofreceivercontrols.............. 8
Quickreference ................... 8
Controloperation.................. 8
Disassemblyforservice.................. 9
Backcover....................... 9
A-Board--mainchassis............. 9
C-Board--CRToutput.............. 9
Z-Board--(somemodels) ........... 9
DI-Board--(somemodels)........... 9
speakers......................... 9
Keyboard push button assembly . . . . . . 9
Disassembly for CRT replacement. . . . . 9
CRTreplacement.................. 9
Chassis service adjustment procedures. . . . 10
130.0V B+ voltage confirmation . . . . . . 10
Sourcevoltagechart............... 10
Highvoltagecheck................ 10
Purity and convergence procedure . . . . . . . . .11
Fora2-pieceassembly .............11
Fora1-pieceassembly .............11
Vertical raster shift adjustment . . . . . . . .11
initialcenterstaticconvergence.......11
Fora2-pieceassembly ............ 12
Fora1-pieceassembly ............ 12
Permalloy convergence corrector
strip(partNo.0FMK014ZZ)...... 12
Service mode (electronic controls) . . . . . . . . 14
Quickentrytoservicemode......... 14
To toggle between aging and
servicemodes................ 14
Entering service mode
(back-openmethod)............ 18
Sub-Contrast .................... 21
Sub-Brightness................... 21
Tint/Coloradjustment.............. 21
Whitebalance.................... 21
Sub-Brightness final adjustment. . . . . . 22
Horizontalcentering............... 22
Verticalsize ..................... 23
MTScircuitadjustments............ 23
Input level adjustment (M00) . . . . . . . . 23
Stereo separation adjustment
(M01&M02) ................. 23
Clockadjustment(X03) ............ 23
Service adjustments
(mechanicalcontrols)........... 24
focus(partofT551) ............... 24
Identification of components . . . . . . . . ..... 28
Audiosignalpathblockdiagram.......... 30
Videosignalpathblockdiagram.......... 31
Partslist.............................. 32
Components abbreviations guide . . . . ..... 46
Schematicnotes ....................... 47
A-Boardlayout..............................49
A-Board schematic
(leftportionCT-2022HE/HCE)................50
A-Board schematic
(rightportionCT-2022HE/HCE)...............51
A-Board schematic
(leftportionCT-2512HE/HCE)................52
A-Board schematic
(rightportionCT-2512HE/HCE)...............53
A-Board schematic
(leftportionCT-2522HE/HCE)................54
A-Board schematic
(rightportionCT-2522HE/HCE)...............55
A-Board schematic
(leftportionCT-2722HEHCE).................56
A-Board schematic
(rightportionCT-2722HEHCE)................57
A-Board schematic
(leftportionCT-3222HE/HCE)................58
A-Board schematic
(rightportionCT-3222HE/HCE)...............59
C-Boardlayout,schematic&voltages............60
Z-Board layout, schematic & voltages,
C-Boardschematic ..........................61
DI-Boardlayout,schematic&voltages...........62
A-Boardvoltagesandwaveforms...............63