Table Of Contents - Panasonic CT-1388YD Service Manual

Important safety notice . . . . . . . . . . . . . . . . . . . 2
Safety precautions . . . . . . . . . . . . . . . . . 2
General guidelines . . . . . . . . . . . . . . . . . 2
Leakage current cold check . . . . . . . . . . 2
Leakage current hot check . . . . . . . . . . . 2
X-ray radiation . . . . . . . . . . . . . . . . . . . . 2
High voltage (CRT anode) . . . . . . . . . . . 2
Service notes . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Surface mount chip component . . . . . . . 4
Component removal . . . . . . . . . . . . . . . . 4
Chip component installation . . . . . . . . . . 4
How to replace Flat-IC . . . . . . . . . . . . . . 4
Receiver feature table . . . . . . . . . . . . . . . . . . . . 6
Location of controls (receiver). . . . . . . . . . . . . 8
Disassembly for service . . . . . . . . . . . . . . . . . 10
Back cover . . . . . . . . . . . . . . . . . . . . . . 10
A-Board - main chassis (may vary) . . . 10
C-Board - CRT output. . . . . . . . . . . . . . 10
Speakers . . . . . . . . . . . . . . . . . . . . . . . 10
Keyboard push button assembly . . . . . 10
Disassembly for CRT replacement . . . . 10
CRT replacement . . . . . . . . . . . . . . . . . .11
Back cover disassembly . . . . . . . . . . . . 12
Main components location . . . . . . . . . . . . . . . 13
Chassis service adjustment procedures. . . . 15
130.0V B+ voltage confirmation . . . . . . 15
Source voltage Chart . . . . . . . . . . . . . . 15
High voltage check . . . . . . . . . . . . . . . . 15
Purity and convergence procedure . . . . . . . . 16
Service adjustments (electronic controls) . . 27
Sub-Contrast . . . . . . . . . . . . . . . . . . . . 27
Sub-Brightness . . . . . . . . . . . . . . . . . . . 27
Tint/Color adjustment . . . . . . . . . . . . . . 27
White balance. . . . . . . . . . . . . . . . . . . . 28
Sub-Brightness final adjustment . . . . . . 29
Horizontal centering . . . . . . . . . . . . . . . 29
Vertical size . . . . . . . . . . . . . . . . . . . . . 29
MTS circuit adjustments . . . . . . . . . . . . 29
Input level adjustment
(stereo models only). . . . . . . . . . . . 29
Stereo separation adjustment
(stereo models only). . . . . . . . . . . . 30
Clock adjustment . . . . . . . . . . . . . . . . . 30
Service adjustments (mechanical controls) . 30
Focus (part of T551) . . . . . . . . . . . . . . . 30
Audio signal path block diagram . . . . . . . . . . 31
Video signal path block diagram . . . . . . . . . . 32
Parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
A-Board layout. . . . . . . . . . . . . . . . . . . . . . . . . . 47
A-Board schematic left CT-1388YD. . . . . . . . . . 48
A-Board schematic right CT-1388YD . . . . . . . . 49
A-Board schematic left CT-1389VYD . . . . . . . . 50
A-Board schematic right CT-1389VYD . . . . . . . 51
A-Board schematic left CT-2088YD. . . . . . . . . . 52
A-Board schematic right CT-2088YD . . . . . . . . 53
A-Board schematic left CT-2089VYD . . . . . . . . 54
A-Board schematic right CT-2089VYD . . . . . . . 55
A-Board schematic left CT-2788YD. . . . . . . . . . 56
A-Board schematic right CT-2788YD . . . . . . . . 57
A-Board schematic left CT-2789VYD . . . . . . . . 58
A-Board schematic right CT-2789VYD . . . . . . . 59
X-Board schematic 13" & 20" voltages . . . . . . . 60
X-Board schematic CT-2788YD voltages . . . . . 61
X-Board schematic CT-2789VYD . . . . . . . . . . . 62
C-Board schematic 20" & 27",
layout and voltages . . . . . . . . . . . . . . . . . . . 63
C-Board schematic 13", voltages;
H-Board schematic & layout . . . . . . . . . . . . 64
G-Board schematic 13" & 20", layout . . . . . . . . 65
G-Board schematic 27" . . . . . . . . . . . . . . . . . . . 66
A-Board voltages and waveforms . . . . . . . . . . . 67
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