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Changhong PF29GA18A – How to enter service mode – circuit diagram – 29 inch color TV

ETA-1D chassis is applied in PF29GA18A series. By use of Toshiba V/C/D-MCU 2IN1 IC for TV small signal processing and bus control, the chassis enables TV tuning, adjustment, control and picture correction, featuring high-integration, high-performance-to-price ratio and high-reliability and compact circuit with fewer external components. The chassis, widely used in small and medium TVs, provides much more convenience for manufacturing and technical service. It includes: 2IN1 IC 8897PSBNG-4VB6 for PAL/NTSC small signal processing and bus control [TMPA8897CMANG /CPANG/CRANG /CSANG] EEPROM AT24C16 for data memory LA78041 for vertical output power amplifying LA42102 for audio power amplifying TA1343N for audio processor FSCQ1265RTYDTU for power circuit adjustment and control. BSC68DG (FBT) Mask ROM: TMPA8897CPBNG (ROM size: 48k) Mask ROM: TMPA8897CRBNG (ROM size: 56k) Mask ROM: TMPA8897CSBNG (ROM size: 64k) OTP ROM: TMPA8897PSBNG (ROM size: 64k) Color systems: PAL, NTSC Sound systems: D/K B...