Digital Main Cba Top View [Type G] - FUNAI LF320EM4 A Service Manual

Digital Main CBA Top View [TYPE G]

CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F602) is blown , check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
C623
C621
C622
R623
BOND
C614
R604
C608
D607
D601
C607
R614
C605
BOND
R601
WHITE
NEUTRAL
CAUTION-
BLACK
F602 RISK OF FIRE,
LIVE
REPLACE FUSE AS MARKED
T 2.5A L/250V
CAUTION ! :
2.5A 250V
ATTENTION : Utiliser un fusible de rechange de même type de 2.5A, 250V.
BA4AFSG0201 1
IC602
R659
R675
R667
D661
C610
R655
R613
R668
C609 R669
C1002
R650
R609
D605
C650
D609
R607
C657
R606
Q601
C606
D656
BC601
C656 Q650
T601 D657
C3643
R3616
R3622 R3614
C3618
R3618 R3615
C3619
R3621
C3001
C3810
L3201 D3608
C3620
C3206
R3211
R3204 L3804
C3205 R3210 R3085
C603 C3214
C3202
D3201 C3257
C3215
R3282
8 5
C3256
C3211 C3843
Q3201
C3213 1
C3844
GT601
C3212 4
R3284
Q3202
R3213
C3210
R3202
For continued protection against risk of fire,
replace only with same type 2.5A, 250V fuse.
C1006
C1007
C652 C653
C1022
C1001
R1027 R1028
C1003 D1006
C1004
R1023
C1005 R1013
R1024
8
D1001 D1002
L1002
9
Q1001
C655 C1016
R3624
Q1052
R3619
L1001
C654 C3628 R3625
C3642
R3641
R3634
C3629
R1054
R1053
C3686
R3626
R3623 C3150 C3144
C3145
D654 D3109
D3110
L3108
C3116 R3182
D3606
IC3009
R3242 C3142
R663
C3143
R3241
D3806
IC3602
C3113
C3826
C3632
L3116
Q3801
D3805
R3868 R3815
C3831 C3184
R3820
C3101
C3829
R3814 C3181
C3614
C3185
C3830
C3176
R3821
R3808
1
14
IC3603
28
15
C3803 C3802
R3803 R3802
C3807
C3611
Q3502 D3601
C3813 R3559 R3102
C3812
R3560
L3802 L3801 R3089
L3803
C3821
C3838 C3836
C3839 C3837
D3804 D3803 D3802 D3801
C3822
C3841
C3842
CN3801
D3501
CN3101
C3559
10-47
Because a hot chassis ground is present in the power supply
circuit, an isolation transformer must be used when repairing.
Also, in order to have the ability to increase the input slowly,
when troubleshooting this type of power supply circuit,
a variable isolation transformer is required.
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
IF-N
IF-P
GND
CN1001
D3901 C3905
C3612 L3913 3.3V
C3603
4 1
TP3902
TP3901
5 8
C3910
R3936
C3907
R1021 D3904
D3903
C
R1035 R3938 R3207
D3902
C9021
R1029 R3937 R3206
R3636
C9019
C1014
1
R1010
R3635
A
C9015 L9007
R1009
R3865 L9002 C9003 C9018 C9017
R3866
C3860
Q3861
D1007
16
C1017
IC3019
R3824
R3861 CN3009
R3862
8
5
C3710 C3705
C3851
Q1051
C3852
1 4
R1051
R3816
R3126
R3479
R3180
Q3701
R3147
R3711 R3710
R3160
C3707 R3708
R3716
C3123
C3133
46 1
47
156
R3104
R3022
R3023
R3109
R3101
C3023
78
D3008
125
124
79
C3110
C3182
R3170
R3168
C3073
R3094
R3093 C3175
C3153
R3214
IC3006
R3189
R3111
R3019
D3204
R3050
R3017 R3042
CN3103 Q3150 C3155
0.175 100
GND
CN9001 CN9002 SDA
SCL
AGC
C
C9008
C9009
C9022
IC9001
B
JK9301
A
C9001
C9002
JK3703
R3704
R3702
C3704
D3703
C3713
R3714 R3707
C3718 R3706
R3713
C9012
C9013
C9011
C9006
L9006
L9003
B
C3715
C3709
C3009
D3049
5
1
10
6
15
11
R3339
D3041 D3302 D3054
R3078
R3326 R3321
C3254 C3255
R3080
R3076
R3074
R3071
CN3010
BA4AFSG02011