AKAI ACL-701AKAI ACL-701, AZ, Elektronika(1), CarAudio
[ Pobierz całość w formacie PDF ]
$"357 .PEFM "$- XXXBLBJSV AKAI ACL-701 servicing map 1. No picture. No sound. Backlight not light. Power on to check Power supply audion B 1204 E pole +12V(Yes/No) Ye s N o Press Power to check C pole 12V output(Yes / No) Check fuse +12 V output (Yes / No) Yes No Yes No Check high Check IC 37160 29 footsie +5V (Yes/No) Check and change Power polarity diode and power on Check Power Jack, fuse and unit current more than 1.5 A voltage Surge circuit and signal manage circuit Ye s No Ye s No Check 1204 front controll audion periphery parts Check Power regularly(Yes/No) Check and change Power supply parts such as transformer and every Change fuse POWER supply Ye s No Check and change IC 37160 and IC 24C08 etc periphery parts &KDQJHEXFNSDUWV 2 Backlight not light. Picture regular Check high voltage surge circuit Power supply pipe 1202 C pole 12V(Yes/ No) Ye s N o Check and change high voltage surge audion AB 2 C 184 high voltage bag etc Check high voltage Power supply pipe 1202 E pole +12V (Yes/ No) Ye s N o Check and Change IC5001 and correlative periphery parts Check and change 1 ȍ resistance 3. Whole light (No picture. No sound. Backlight regular) Check Power transformer HD-30534 commutate voltage output regular(+5V ᇬ +16V ᇬ -16V ᇬ +24V or Ye s 0.5V-0.7V 0.8V above NO Check Screen arrange 1 footsie +16V 12 footsie -16V 29,30,31,32 footsie +5V regular(Yes/No) Check Transformercommutae diode regular Check and change current Power 3518 Check 3158’5Footsie +12V regular (Yes/No) Ye s No Ye s N o Ye s N o Checkmainboard 3 footsie complex inphase regular Checking Power supply parts Check and change commutate output loading Change parts Check and change 3518 and periphery parts Check and change Power supply current Resistance No Yes 10 ˖ Check 3Y26A 48 footsie complex insphase Check and change screen and arrange 16,20 screen scanning to control circuit parts regular(Yes/No) Yes No Check and change 12101 Resistance Check 3Y26A 2 footsie complex inphase 4.8V(Yes/No) Ye s N o Check and change 3Y26A Check IC4011 13 footsie complex insphase regular(Yes/No) Ye s N o Check and change 13 footsie buck parts Check ICM61260 11 footse 5 footsie ,in phase signal output (Yes/ No) Ye s N o Check and change IC 4011 Check ICM61260 12,44 12V 3.4.39.40 footsie 5V(Yes/No) Ye s N o Check Power supply circuit Check and change ICM61260 4. No sound, picture regular Using disturb way touch ICLM386 3 footsie has souffle (Yes /No) Ye s N o Touch IC61260 51 footse souffle(Yes/No) Check ICLM386 6 footsie power supply regular(Yes/ No) Ye s N o No Yes Check IC61260 53 foots audio frequency signal input(Yes/No) Check IC 61260 51 foots and correlative periphery Parts ,resistance 10K capacitance etc Check and change Check speaker, Earphone jack regular ( Yes/No) resistance 12 ˖ No No Yes Ye s Check and change Check IC61260 4 foots +5V, 50 foots ,52 foots 3.4V regular(Yes/No) Check and change LM386 and periphery parts C 1uf /50V ᧨ 4.7 ˖᧨ Change parts No Yes Check and Change IC61260 change output parts [ Pobierz całość w formacie PDF ] |
Podobne
|