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Colour Television Chassis
FM23 AC, FM24 AB, FM33 AA




Contents Page Contents Page
1 Technical Specifications, Connections, and 2 LED/Switch (Sets with Speakers) (Diagram LD) 57 58
Chassis Overview LED/Switch (Speakerless sets) (Diagram LD) 59 60
2 Safety Instructions, Maintenance, Warnings, 5 Power Supply (FM23 AC) (Diagr. P1-P7) 61-67 68-74
and Notes Power Supply (FM24 AB) (Diagr. P1-P7) 75-81 82-88
3 Directions for Use 6 Power Supply (FM33 AA) (Diagr. P1-P7) 89-95 96-100
4 Mechanical Instructions 20 SCAVIO: Function Blocks (Diagr. SC1) 101 116-121
5 Service Modes, Error Codes, and Fault Finding 24 SCAVIO: Sync Selection (Diagr. SC2) 102 116-121
6 Block Diagrams, Testpoint Overview, and SCAVIO: Video Selection (Diagr. SC3) 103 116-121
Waveforms SCAVIO: Video ADC (Diagr. SC4) 104 116-121
Wiring Diagram (FM23 AC/FM24 AB) 31 SCAVIO: Video Select. Decoder (Diagr. SC5) 105 116-121
Wiring Diagram (FM33 AA) 32 SCAVIO: VGA Input (Diagr. SC6) 106 116-121
Block Diagram Video 33 SCAVIO: Control Functions 1 (Diagr. SC7) 107 116-121
Testpoint Overview: SCAVIO Panel 34 SCAVIO: Control Functions 2 (Diagr. SC8) 108 116-121
Block Diagram Audio 35 SCAVIO: Scaler Clock Gen. (Diagr. SC9) 109 116-121
Testpoint Overview Audio Amplifier Panel 36 SCAVIO: PW Scaler + Memory (Diagr. SC10) 110 116-121
Block Diagram Power Supply (FM23 AC) 37 SCAVIO: Back-End EPLD (Diagr. SC11) 111 116-121
Testpoint Overview Power Supply (FM23 AC) 38 SCAVIO: Back-End LVDS Out (Diagr. SC12) 112 116-121
Block Diagram Power Supply (FM24 AB) 39 SCAVIO: Audio Source Select. (Diagr. SC13) 113 116-121
Block Diagram Power Supply (FM33 AA) 40 SCAVIO: Audio Processor (Diagr. SC14) 114 116-121
Testpoint Overview: Power Supply (FM24 AB) 41 SCAVIO: Audio Delay Line (Diagr. SC15) 115 116-121
Testpoint Overview: Power Supply (FM33 AA) 42 VGA Connector Panel (Diagr. VGA) 122 123-124
Power Lines Overview (FM23 AC) 43 8 Alignments 125
Power Lines Overview (FM24 AB) 44 9 Circuit Descriptions 129
Power Lines Overview (FM33 AA) 45 List of Abbreviations 149
I2C-IC Overview (FM23/FM24/FM33) 46 IC Data 151
7 Circuit Diagrams and PWB layouts Diagram PWB 10 Spare Parts List 155
Audio & Supply: DC Protection (Diagram A1) 47 54-55 11 Revision List 173
Audio & Supply: Filters (Diagram A2) 48 54-55
Audio & Supply: Left High (Diagram A3) 49 54-55
Audio & Supply: Left Low (Diagram A4) 50 54-55
Audio & Supply: Right High (Diagram A5) 51 54-55
Audio & Supply: Right Low (Diagram A6) 52 54-55
Audio & Supply: Supply+DC Prot.(Diagram A7) 53 54-55
EMC Filter Panel (Diagr. EMC) 56 56