LG GR-J303TS Service Manual - Page 22

3-2-10. KEEPING TEMPERATURE COMPENSATION AND TOO COLD/ TOO WARM CUT COMPENSATION CIRCUIT (1) Keeping Temperature Compensation Circuit MIDDLE COMPARTMENT KEEPING TEMPERATURE COMPENSATION LOWER COMPARTMENT KEEPING TEMPERATURE COMPENSATION (UPPER COMPARTMENT SENSOR) u This circuit is used for entering the required level of temperature compensation into MICOM to adjust keeping temperature at the upper, middle and lower compartment. Upper Compartment Resistance Value RCF1 RCF2 Temperature Compensation 6.2 KΩ +2.5 °C 5.1 KΩ +2.0 °C 3 KΩ +1.5 °C 2.4 KΩ +1.0 °C 1.2 KΩ +0.5 °C 0 °C 620 Ω -0.5 °C 1.2 KΩ -1.0 °C 1.8 KΩ -1.5 °C 2.4 KΩ -2.0 °C 3 KΩ -2.5 °C Middle/Lower Compartment Resistance Value RCT(Middle) RCB(Lower) Temperature Compensation 180 KΩ +2.5 °C 56 KΩ +2.0 °C 33 KΩ +1.5 °C 18 KΩ +1.0 °C 12 KΩ +0.5 °C 10 KΩ 0 °C 8.2 KΩ -0.5 °C 5.6 KΩ -1.0 °C 3.3 KΩ -1.5 °C 2 KΩ -2.0 °C 470 Ω -2.5 °C Remarks warmer Standard temperature Cooler u Temperature compensation table by adjustment of resistance value (difference value against current temperature). Ex) Temperature at the middle compartment increases by +1°C if changing compensation resistance at the middle compartment (RCT) from 10K (current resistance) to 18K (corrected resistance). - 22 -