Read Sharp 76FW-54H Service Manual online
DA100 (50Hz) and DA50W Chassis – Repair Notes
Page 6 of 80
Sharp Electronics (UK) Limited - May 2003
Revision 3
Figure 43: Centre Speaker PWB Location................................................................................................................................44
Figure 44: Centre Speaker Circuit Diagram..............................................................................................................................44
Figure 45: Centre Speaker Modification 1 ................................................................................................................................45
Figure 46: Centre Speaker PWB Modification 2......................................................................................................................46
Figure 47: Pro-Logic PWB..............................................................................................................................................................47
Figure 48: Dolby Pro-Logic Circuit Diagram (66GF64H)........................................................................................................48
Figure 49: Dolby Pro-Logic PWB Connector ..............................................................................................................................49
Figure 50: Communication Block Diagram ..................................................................................................................................50
Figure 51: Reset Timing ................................................................................................................................................................. 51
Figure 52: Audio Protection Circuit ............................................................................................................................................52
Figure 53: Horizontal Mute Circuit.............................................................................................................................................52
Figure 54: AV Link Schematic Diagram......................................................................................................................................53
Figure 55: Internal Architecture of IC801 (VDP 3120) ........................................................................................................56
Figure 56: VDP Protection Circuits .............................................................................................................................................58
Figure 57: Position of C824 ..........................................................................................................................................................59
Figure 58: Picture Rotation Circuit (located on CRT PWB) ...................................................................................................60
Figure 59: Scan Velocity Modulator Circuit.............................................................................................................................. 61
Figure 60: SVM and Tilt Coil Connectors...................................................................................................................................62
Figure 61: CRT Base PWB Modification (66cm and 76cm sets only) ...................................................................................63
Figure 62: Fault Finding Flow Chart 1.........................................................................................................................................65
Figure 63: Fault Finding Flow Chart 2 ........................................................................................................................................66
Figure 64: LED Fault Code Table.................................................................................................................................................67
Figure 65: HW OPC LED Error Code Jig ...................................................................................................................................67
Figure 44: Centre Speaker Circuit Diagram..............................................................................................................................44
Figure 45: Centre Speaker Modification 1 ................................................................................................................................45
Figure 46: Centre Speaker PWB Modification 2......................................................................................................................46
Figure 47: Pro-Logic PWB..............................................................................................................................................................47
Figure 48: Dolby Pro-Logic Circuit Diagram (66GF64H)........................................................................................................48
Figure 49: Dolby Pro-Logic PWB Connector ..............................................................................................................................49
Figure 50: Communication Block Diagram ..................................................................................................................................50
Figure 51: Reset Timing ................................................................................................................................................................. 51
Figure 52: Audio Protection Circuit ............................................................................................................................................52
Figure 53: Horizontal Mute Circuit.............................................................................................................................................52
Figure 54: AV Link Schematic Diagram......................................................................................................................................53
Figure 55: Internal Architecture of IC801 (VDP 3120) ........................................................................................................56
Figure 56: VDP Protection Circuits .............................................................................................................................................58
Figure 57: Position of C824 ..........................................................................................................................................................59
Figure 58: Picture Rotation Circuit (located on CRT PWB) ...................................................................................................60
Figure 59: Scan Velocity Modulator Circuit.............................................................................................................................. 61
Figure 60: SVM and Tilt Coil Connectors...................................................................................................................................62
Figure 61: CRT Base PWB Modification (66cm and 76cm sets only) ...................................................................................63
Figure 62: Fault Finding Flow Chart 1.........................................................................................................................................65
Figure 63: Fault Finding Flow Chart 2 ........................................................................................................................................66
Figure 64: LED Fault Code Table.................................................................................................................................................67
Figure 65: HW OPC LED Error Code Jig ...................................................................................................................................67
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