KDE-55XBR950 (serv.man2) - Sony TV Service Manual (repair manual). Page 16

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3.3.1 Logic board Function   

(1) Data Processor 

- γ adjustment(1 / 2.2 / 2.4 / 2.6 / 2.8) 
- NTSC/EBU format(Color matrix) Switch 
- RGB gain Control(White balance adjustment, Amplitude limitation) 
- Error Diffusion Technology(Grayscale adjustment) 
- Dither(Grayscale adjustment) 
- Burn-in Pattern generation 

 

(2) Data Converter 

- Quasi out-line adjustment (luminous pattern control) 

 

(3) Scan Controller 

- Address driver control signal generator (ADM) 
- scan driver control signal generator (SDM) 
- X/Y sustain control signal generator 

 

(4) Waveform ROM 

- Waveform Pattern for drive / Timing memory 

 

(5) MPU 

- Synchronous detection 
- System control 
- Driving voltage(Va, Vs, Vr, Vw, Vu, Vq) Minute adjustment 
- Abnormal watch (breakdown detection)/abnormal processing 
- Is(sustain) current control (sustain pulse control) 
- Ia(address) current control (sub-field control) 
- External communication control 
- Flash memory (firmware) 

 

(6) EEPROM 

- Control parameter memory 
- The accumulation energizing time (Every hour). 
- Abnormal status memory (16 careers)