LG adjusments troubleshooting free download

File name adjusments_troubleshooting.pdf

ADJUSTMENTS This set has been aligned at the factory and normally will not require further adjustment. As a result, it is not recommended that any attempt is made to modificate any circuit. If any parts are replaced or if anyone tampers with the adjustment, realignment may be necessary. IMPORTANT 1. Check Power-source voltage. 2. Set the function switch to band being aligned. 3. Turn volume control to minimum unless otherwise noted. 4. Connect low side of signal source and output indicator to chassis ground unless otherwise specified. 5. Keep the signal input as low as possible to avoid AGC and AC action. TAPE DECK ADJUSTMENT 1. AZIMUTH ADJUSTMENT Deck Mode Test Tape Test Point Adjustment Adjust for A Deck Playback MTT-114 Speaker Out DECK Screw Maximum B Deck Playback MTT-114 Speaker Out Azimuth Screw Maximum Electronic Dual-trace Voltmeter synchroscope Head Playback Mode Speaker Out L out L ch CH1 CH2 Test Tape Unit MTT-114 R ch GND R out Figure 1. Azimuth Adjustment Connection Diagram 2. MOTOR SPEED ADJUSTMENT Deck Mode Test Tape Test Point Adjustment Adjust for Remark Normal Speed MTT-111 Speaker Out VR201 3kHz