LG pc58aai free download

File name pc58aai.pdf

ADJUSTMENT INSTRUCTIONS * Safety Precautions Frequency Modulation Output level 1. It is safe to adjust after using insulating transformer 38.9MHz OFF 10mVp-p between the power supply line and chassis input to prevent the risk of electric shock and protect the (Table 1) instrument. 2. Never disconnect leads while the TV receiver is on. 3. Don't short any portion of circuits while power is on. * SECAM L' Adjustment 4. The adjustment must be done by the correct appliances. But this is changeable in view of NOTE : This adjustment should be performed after PIF productivity. adjustment. 5. Unless otherwise noted, set the line voltage to 230Vac +_10%, 50Hz. Test Point : TP1 * Test Equipment required Adjust : VR101 1. RF signal generator (with pattern generator) 2. DC Power Supply 3. Multimeter (volt meter) 1) Tune the TV set to receive a SECAM-L' signal. 4. Oscilloscope 2) Adjust VR101 so that the DC voltage may be indicated 5. Color analyzer 2.6+_0.1Vdc. Main Board(Component side view) * SECAM L/L' sound Adjustment MULTIMETER Test Point : C638(Refer to the Fig.2) MAIN BOARD Adjust : VL102 TDA9811 VR101 L' 17 16 ADJ. TP1 23 TP2 VL102 4.5M 9 OSCILLOSCOPE IC601 TP3 IC101 MSP3410 VL1