Trouble Shooting Guide MP3/CD Section AC cord in Power ON/OFF ON Pick-up unit return(outside >> inside) Refer to 1 and Rollette rotation Refer to 2 CD open and disc insert CD close and CD on CD play on Laser diode on Refer to 3 Refer to 4 Focusing operation...
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Trouble Shooting Guide MP3/CD Section 1. Pick-up unit return AC cord in 1.Check CN700 2.Check IC701 of 33pin/40pin:3.3V Power ON/OFF ON 3..Check IC707(MCU IC) of 32pin:(main power on) 1.Check CN704 2.Check IC707(MCU IC) of 23/24/25/26/27/28pin 3.Check IC705 of 5/12/13pin 4. Check CN502,CW504.CN505 5.
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Trouble Shooting Guide MP3/CD Section 4. Focusing operation 1. Check (IC502 SA5888 of 13pin and 14pin) Focusing 13pin 3.95V >>3.99V, pin18 3.72V >> 3.75V >>> operation in case of play. 2. Check +1.58V(IC500 M5675 of 126pin). 5. Spindle motor rotation 1.
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Trouble Shooting Guide Front & Tuner Section AC cord in 1.Check CN700 2.Check IC701 of 33pin/40pin:3.3V Power ON/OFF ON 3.Check IC707(MCU IC) of 32pin:(main power on) 1.Check CN702 2.Check FD701(VFD) VFD Display 3.Check IC701(SC16315) 1.Check CN700 of 10pin:5V 2.Check LD705/LD706/LD707/LD709/ Function LED light LD710/LD711/LD712/LD713/LD714/ LD715...
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Trouble Shooting Guide Front & Tuner Section 1.Check IC707(MCU IC) of 27/28/31pin 2.Check CN703 Change to tuner function 3.Check CW703 4.Check IC105(TUNER IC) 5.Check X104(12MHZ) 1.Check CN704 2.Check IC707(MCU IC) of 23/24/25/26/27/28pin Change to CD function 3.Check IC705 of 5/12/13pin 1.Check J301 2.Check IC702(IL4560D) Phones sound...
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Trouble Shooting Guide SMPS & AMP Section (Only NC-8112E Model) AC cord in 1.Check F901 2.Check PT901 3.Check CW902 of 6pin:3.3V 4.Check CW902 of 7pin:(main power on) 5.Check CN700 Power ON/OFF ON 6.Check IC707(MCU IC)of 33pin/40pin:3.3V 7.Check IC707(MCU IC) of 32pin:(main power 1.Check CW903...
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Trouble Shooting Guide SMPS & AMP Section (Only NC-8114E/NC-8115E Model) AC cord in 1.Check F901 2.Check PT901 3.Check CN902 of 6pin:3.3V 4.Check CN902 of 7pin:(main power on) 5.Check CN700 Power ON/OFF ON 6.Check IC707(MCU IC)of 33pin/40pin:3.3V 7.Check IC707(MCU IC) of 32pin:(main power 1.Check CW903 2.Check CN702 3.Check FD701(VFD)
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Trouble Shooting Guide SMPS & AMP Section (Only NC-8117E Model) START(AC cord ON) DISPLAY(DEMO) 1. SMPS Primary Part : Power Cord, Fuse, IC907, PT901, IC905 Check. 2. SMPS Secondary Part : IC902, Q951~Q961 Check 1. FRONT : Micom(IC707) 1. Front : VFD Driver(IC707), VFD(FD701) Check 1.