LG Gr P227 Ytqa Service Manual
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1-12. Key Button Input and Display Lighting Circuit This circuit is to judge the work of function control button on the operation panel and to light each function indication led (LED module). It is driven by SCAN method. EXPLATION FOR MICOM CIRCUIT - 52 - PCB ASSEMBLY, DISPLAY PWB ASSEMBLY, DISPLAY
2. Compensation circuit for weak-cold, over-cold at freezing room uThe above option circuit is a circuit to compensate for temperature at the cold storage room by simply cutting in service. Compensation Compensation for weak-cold for over-coldTemperature compensation value Remarks JCR3 JCR4 JCR1 JCR2at cold storage room 0 °C (In shipment from factory) CUT-1 °C CUT -1 °C CUT +1 °C CUT +1 °C CUT CUT -2 °C CUT CUT +2 °C CUT CUT 0 °C CUT CUT 0 °C CUT CUT 0 °C CUT CUT 0 °C CUT CUT CUT -1 °C CUT CUT CUT +1 °C CUT CUT CUT CUT 0 °C Temperature compensation in CUT JCR1 +1 °C +2 °C JCR2 +1 °C JCR3 -1 °C -2 °C JCR4 -1 °C EXPLATION FOR MICOM CIRCUIT - 54 -
3. PWB Parts Drawings and List 3-1. PWB Assembly Main Parts Drawings EXPLATION FOR MICOM CIRCUIT - 55 -