Akai ACL-801 User manual

www.akai.ru

Model:

ACL-801

CAR TV

AKAI ACL-801 Servicing Map

1. No picture. No sound. backlight not light

Yes

Power on to check Power supply audion B 1204 E pole

+12V(Yes/No)

No

Press Power to check 1024 C pole output +12V

(Yes/ No) Check fuse +12V output

Yes No Yes No

Check high voltage

Surge circuit and signal

manage circuit

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

Check 1204 front

controll audion

periphery parts

Change fuse

Check 1204 front

controll audion

periphery

parts(Yes/No)

Check and change

Power supply parts

such as transformer

and every Power

supply

NoYes

No No

Yes Yes

Check and change IC 37160 and

IC 24C08 etc periphery parts Change buck

2 Backlight not light. Picture regular

Check high voltage surge circuit Power supply pipe

1202 C pole 12V(Yes/ No)

Yes No

Check and change high voltage surge audion

AB2C184 high voltage bag etc

Check high voltage Power supply pipe 1202

E pole +12V (Yes/ No)

Yes No

Check and Change IC5001

and correlative periphery parts

Check and change 1ȍ

resistance

3. Whole light (No picture. No sound. Backlight regular)

Yes

Check POWER transformer HD-30534 commutate voltage

output regular(+5V、+16V、-16V、+24V or 30 V)

0.8V above

0.5V-0.7V No

Check Screen arrange 1

footsie +16V 12 footsie

-16V 29,30,31,32 footsie

+5V regular(Yes/No)

Check

Transformercomm

utate diode regular

Check and change

current Power

3518

checkmainboar

d 3 footsie

complex

inphase regular

Checking

Power supply

parts

Check and

change

commutate

output

Change

parts

Check and

change

3518 and

periphery parts

Check and

change Power

supply current

Resistance

10Ω

Check 3Y26A 48 footsie

complex insphase regular

(Yes/No)

Checking and change screen and arrange 16,20

screen scanning to control circuit parts

Check and change

Power supply

current

Check 3Y26A 2 footsie complex inphase 4.8V(Yes/No)

Check and change 3Y26A Checking IC4011 13 footsie complex insphase regular(Yes/No)

Check and change 13

footsie buck parts Checking ICM61260 11 footse 5 footsie ,in phase

signal output (Yes/ No)

Check and change

IC4011

Check ICM61260 12,44 12V 3.4.39.40 footsie 5V(Yes/No)

Yes

YesYes

No

NoNoYes No

Check 3158’5Footsie +12V

regular (Yes/No)

Check Power supply

circuit

Check and change

ICM61260

4 . No sound, picture regular

Touch IC61260 51 footse

souffle(Yes/No)

Touch IC61260 51 footse souffle(Yes/No)

Check IC61260 53

footsie audio frequency

signal input(Yes/No)

Check and change

nce 27Ωresista Check speaker,

Earphone jack

regular ( Yes/No)

Change parts

Check and change

LM386 and

periphery

parts

Check and change

C1uf/50V，4.7Ω，

Check IC61260 4 footsie +5V,

50 footsie ,52 footsie 3.4V

regular(Yes/No)

No

No Yes

Yes

No Yes

No

Yes

Check IC 61260 51

footsie and

correlative periphery

Parts ,resistance 10K

capacitance etc

Using disturb way touch ICLM386 3 footsie has souffle (Yes /No)

Yes No

Check and change

output parts Change IC61260

12345678

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Akai ACL-801 User manual

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