LG E700S Service Manual - Page 33

TDA4857 Autosync Deflection Controller TDA4857 32 1 HFLB 1 XRAY 2 BOP 3 BSENS 4 BIN 5 BDRV 6 PGND 7 HDRV 8 XSEL 9 VCC 10 EWDRV 11 VOUT2 12 VOUT1 13 VSYNC 14 HSYNC 15 CLBL 16 TDA4857 32 FOCUS 31 HSMOD 30 HPLL2 29 HCAP 28 HREF 27 HBUF 26 HPLL1 25 SGND 24 VCAP 23 VREF 22 VAGC 21 VSMOD 20 i.c 19 SDA 18 SCL 17 HUNLOCK Pin Configuration PIN SYMBOL DESCRIPTION PIN SYMBOL DESCRIPTION 1 HFLB Horizontal Flyback Input 17 HUNLOCK H-Synchronization Unlock/Protection/V-Blanking Output 2 XRAY 3 BOP 4 BSENS 5 BIN 6 BDRV X-ray Protection Input B+ Control OTA Output B+ Control Comparator Input B+ Control OTA Input B+ Control Driver Output 18 SCL 19 SDA 20 i.c 21 VSMOD 22 VAGC I2C-Bus Clock Input I2C-Bus Data Input Internally connected; nite 1 Input for EHT Compensation (Via V-Size) External Capacitor for V-Amplitude Control 7 PGND Power Ground 23 VREF External Resistor for Vertical Oscillator 8 HDRV Horizontal Driver Output 24 VCAP External Capacitor for Vertical Oscillator 9 XSEL Select Input for X-ray reset 25 SGND Signal Ground 10 Vcc Supply Voltage 26 HPLL1 External Filter for PLL1 11 EWDRV EW Waveform Output 27 HBUF Buffered F/V Voltage Output 12 VOUT2 Vertical Output 2 (Ascending Sawtooth) 28 HREF Reference Current for Horizontal Oscillator 13 VOUT1 Vertical Output 1 (Descending Sawtooth) 29 HCAP External Capacitor for Horizontal Oscillator 14 VSYNC Vertical Synchronization Input 30 HPLL 2 External Filter for PLL2 / Soft Start 15 HSYNC Horizontal / Composite Synchronization Input 31 HSMOD Input for EHT Compensation (Via H-Size) 16 CLBL Video Clamping Pulse / V-Blanking Output 32 FOCUS Output for Vertical Focus - 33 -