Note:Specifications are subject to change without notice. Mass andDimensions shown are approximate.1 Safety Precautions 31.1. General Guide 31.2. Leakage Current Cold Check 31.3. Leakage Current Hot Check (See Fig. 1) 31.4. X-Radiation 32 Location of Controls and Circuit Boards 42.1. BACK VIEW 42.2. LOCATION AND FUNCTION NAME OF CIRCUIT BOARD43 Service Hints 53.1. HOW TO MOVE CHASSIS INTO SERVICE POSITION. 54 MARKET MODE FUNCTION 65 ADJUSTMENT PROCEDURE 85.1. B VOLTAGE 85.2. RF AGC 85.3. HIGH VOLTAGE 85.4. SUB TINT 85.5. SUB CONTRAST 85.6. PAL COLOUR OUTPUT 95.7. NTSC COLOUR OUTPUT 95.8. COLOUR PURITY 105.9. CONVERGENCE 105.10. WHITE BALANCE (MARKET MODE CHK 3) 116 CONDUCTOR VIEWS 136.1. T-Board (TNP4G115AH) and L-Board (TNP4G107AW) 136.2. A-Board (TNP4G164AQ) 146.3. H-Board (TNP4G173AB), X-Board (TNP4G108BC) and 167 SCHEMATIC DIAGRAMS 177.1. SCHEMATIC DIAGRAM FOR MODEL TX-25P80T (MX-10A CHASSIS) 177.2. Main Board (TNP4G164AQ) 187.3. Rear AV Circuit (TNP4G173AB) 207.4. CRT Circuit (TNP4G107AW) 217.5. Pincushion Circuit (TNP4G108BC) 227.6. Teletext Circuit (TNP4G115AH) 23279 Replacement Parts List 299.1. Replacement Parts List Notes 299.2. Replacement Parts List 30CONTENTS Page Page2TX-25P80TPartlist