Mitsubishi V19-V21, Tehnical Manual

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2
DM Module Control Circuitry .............................................................................. 6-7
Software Update Procedure ....................................................................... 6-9
DM Module Replacement ......................................................................... 6-10
Chapter 7 ... Video/Color Circuitry
Overall Block Diagram ....................................................................................... 7-1
NTSC Signa Selection ....................................................................................... 7-2
PCB-SIGNAL Video Color Signal Path .............................................................. 7-3
3DYC/Main Decoder Circuitry ............................................................................ 7-4
YCbCr Select Circuitry ....................................................................................... 7-5
VCJ Video/Color Signal Path ............................................................................. 7-6
RGB CRT Drive & Protect Circuitry .................................................................... 7-8
Monitor Out Video/Color Signal Path .................................................................. 7-8
DM Module Video/Color Block Diagram .......................................................... 7-10
Chapter 8 ... Deflection and High Voltage
Sync Block Diagram .......................................................................................... 8-1
Sync Signal Path ................................................................................................ 8-2
Deflection and High Voltage ............................................................................... 8-3
HV 12 Volt Supply .............................................................................................. 8-4
HV Regulation .................................................................................................... 8-5
X-Ray Protect .................................................................................................... 8-5
Deflection Loss Detection .................................................................................. 8-6
Flash Protect Circuit........................................................................................... 8-7
Chapter 9 ... Sound Circuitry
Overall Block Diagram ....................................................................................... 9-1
Signal Path ........................................................................................................ 9-2
AC-3 Output ....................................................................................................... 9-3
Chapter 10 ... Convergence Circuitry
Overall Block Diagram ..................................................................................... 10-1
Waveform Generator and D/A Converter .......................................................... 10-2
LPF and Summing Amplifiers .......................................................................... 10-3
Convergence Output Circuitry ........................................................................... 10-4
Chapter 11 ...Troubleshooting Tips
Using the Front Panel LED ............................................................................... 11-1
DM Module Check ........................................................................................... 11-1
NetCommand
TM
Control Problems .................................................................... 11-1
CRT Phosphor Protection ................................................................................ 11-1