LG f818adj free download

File name f818adj.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. TEST & ADJUSTMENT POINT L203 (Rec Bias) L105 L016 VR201 (LW/SW USABLE (DC VOLTAGE) (Adjustment Point) SENSITIVITY) L017 (MW USABLE SENSITIVITY) Figure 1. Main P.C. Board(FFH-717) -8- L203 VR201 (Rec Bias) L105 (Adjustment Point) (LW/SW USABLE L016 SENSITIVITY) (DC VOLTAGE) L017 (MW USABLE SENSITIVITY) Figure 2. Main P.C. Board(FFH-818) TAPE DECK ADJUSTMENT 1. AZIMUTH ADJUSTMENT Deck Mode Test Tape Test Point Adjustment Adjust for DECK Screw A Deck Playback MTT-114 Speaker Out Maximum Azimuth Screw 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