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CAR TV



Model:
ACL-801




www.akai.ru
AKAI ACL-801 Servicing Map
1. No picture. No sound. backlight not light
Power on to check Power supply audion B 1204 E pole
+12V(Yes/No)




Yes No


Press Power to check 1024 C pole output +12V
(Yes/ No) Check fuse +12V output




Yes No Yes No

Check high voltage
Check and change Check Power Jack,
Surge circuit and signal
Check IC 37160 Power polarity fuse and unit
manage circuit
29 footsie +5V diode and power current more than
(Yes/No) on 1.5 A


Yes No
Yes No



Check 1204 front Check 1204 front Check and change
controll audion controll audion Power supply parts Change fuse
periphery parts periphery such as transformer
parts(Yes/No) and every Power
supply
Yes No


Check and change IC 37160 and
Change buck
IC 24C08 etc periphery parts
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 Check high voltage Power supply pipe 1202
AB2 C184 high voltage bag etc E pole +12V (Yes/ No)



Yes No



Check and Change IC5001 Check and change 1
and correlative periphery parts resistance
3. Whole light (No picture. No sound. Backlight regular)

Check POWER transformer HD-30534 commutate voltage
output regular(+5V+16V-16V+24V or 30 V)
Yes

0.5V-0.7V 0.8V above No
Check Screen arrange 1
footsie +16V 12 footsie Check
Check and change Check 3158'5Footsie +12V
-16V 29,30,31,32 footsie Transformercomm
current Power regular (Yes/No)
+5V regular(Yes/No) utate diode regular
3518
Yes No Yes No Yes No


checkmainboar Checking
Check and Change Check and Check and
d 3 footsie Power supply
change parts change change Power
complex parts
commutate 3518 and supply current
inphase regular
output periphery parts Resistance
No
Yes
10
Check 3Y26A 48 footsie
Checking and change screen and arrange 16,20
complex insphase regular
screen scanning to control circuit parts
(Yes/No)
No
Yes
Check and change Check 3Y26A 2 footsie complex inphase 4.8V(Yes/No)
Power supply
Yes No
current
Check and change 3Y26A Checking IC4011 13 footsie complex insphase regular(Yes/No)
Yes No
Check and change 13 Checking ICM61260 11 footse 5 footsie ,in phase
footsie buck parts signal output (Yes/ No)

Yes No

Check ICM61260 12,44 12V 3.4.39.40 footsie 5V(Yes/No)
Check and change
IC4011
Yes No


Check Power supply
Check and change
circuit
ICM61260
4 . No sound, picture regular


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



Yes No




Touch IC61260 51 footse souffle(Yes/No)
Touch IC61260 51 footse
souffle(Yes/No)

No Yes
Yes No




Check and change
Check speaker,
Check IC61260 53 Check IC 61260 51
resistance 27 Earphone jack
footsie audio frequency footsie and
regular ( Yes/No)
signal input(Yes/No) correlative periphery
Parts ,resistance 10K
capacitance etc No Yes
No Yes




Check and change
Check and change Check IC61260 4 footsie +5V,
LM386 and
50 footsie ,52 footsie 3.4V Change parts
C1uf/50V4.7 periphery
regular(Yes/No)
parts

No Yes




Check and change Change IC61260
output parts
1 2 3 4 5 6 7 8




ANT
TDQ-3T-5

ANT GND 4011




AGC
1 02




+5V
BU

BH
VT




BL
D 10u D




IF
ANT H OUT 1 14 +5V L330
2 13 VDD+12V
c104 c102
c821 3 12
IF
101 4 11
5 10
563 6 9 NPN
c103
100 u 7 8
203
c104 10uF
47 2 AGC TU c222
BM c103 KEY 823
1 8
2U2 101
10u 2 7 10
c103 9T




34

15
472 842




2
BL 10u 4 72 123 VR203
3 6
c104
C103 4 5 10 uF
4 72 563 102
10u 10
BU BH
10uF 222
VCOM OUT
10 +5V V OUT SYNC IN 102
+5V 123 123
PNP
103 10uF 472

H SYNC PNP

c223
AFT

V OUT VCC+5V
C392 512 IF BM
102

471
4

3

2

1




332 1.2UH
BU BH BL V SYNC 30 LY
VSS



SO

VDD CE#
SCK WP#




+5V
HOLD#




332 c202 c104 221
24C08 KEY 272




BLACK
c103 SYNC OUT
10 2
SI




562 562 562 c105 562 H SYNC
c103 47u 22UH VCOM IN1
472 H OUT c103
c103 VCOM IN2
5

6

7

8
34

15




9T 100u
2




c101 202 C103 c103 361
562 c104
202 c334 102 BLACK
c101
SDA SCL VDD+5V
105
NP c104
332 33 2 332 10 10 10 c104 0.56uH MODE2
C 101 102 C
VR103 VR103 VR103
G R




M37160 1 OM
VT c104 c104 c104 c104 MODE1
1 42 VR203
MODE3 BU




+8V
GND
B




c101 2 41 c103 c104 c104




101
101
101
VT BH GND 38M
472 102 3 40 VIF2 472
NP BL 17 VIF2 VIF2
G




+8V

HOUT




VOUT

+5V

+5V
13




10
B



R