Speaker Amplifier Section - JVC DD-8E Service Manual

Speaker amplifier section

!
IC303
STK404-120
1 2 3 4 5 6 7 8 9 10 11 12
100/50
C3034
R3031
1/2W 100
UNF
MP R3606
R3033
0.22
5W
4.7K MP
R3607
0.22
5W
R3605
56K
R3603 C3605
56K
3P
C3602
0.022
C3036
0.01
R3602
NI
C3037
0.01
R3933
47
1/4W
Q3931 R3932
KTC3199/GL/-T 100
C3672
DD3 0.012
1/4W
R3672
EXCEPT DD3 0.018
22K
!
8 7 6 5
1 2 3 4
R3655 NI
R3654 390K R3942
DD3 ONLY
100
B3105,3106 1/4W
Q3941
EXCEPT DD3
KTA1267/YG/-T
R3658
6.8K R3651
3.9K
D3661
R3661 R3662 1SS133-T2
100K 5.1K
R3821
47K
Q3662
KRA109S-X
R3822
C3822 1K
0.01
R3823
10
!
IC301
STK453-030A
1 2 3 4 5 6 7 8 9 10 11 12 13
C3205
8P
R3205
56K
R3061 R3105
R3044
47 Q3012
470 KTA1267/YG/-T 56K
1/4W
C3105
8P
C3041
47/25
C3013
Q3011 100/25
R3011 KTC3199/GL/-T
1/4W 100
R3014
1K
R3045
6.8K
1/4W
R3017 MTZJ20B-T2
22K D3044
C3042
0.01
Q3014
C3043
KTA1504/YG/-X 0.01
R3054
100K
R3052
56K
KTA1271/OY/-T
R3811
10K R3805
470
R3806
D3802
47K
MTZJ6.8B-T2
CN304 CN303
QGB2510J1-16 QGA2501C1-02
TO FAN MOTOR
TO CONTROL (CN105)
(LVA10684-A2)
14 15 16 17 18 19 1 2 3 4 5 6 7 8
R3206
3.3K
R3106
3.3K
R3071
47 Q3022
KTA1267/YG/-T
1/4W
Q3021
R3021 KTC3199/GL/-T
1/4W 100
R3024
1K
C3103
10/63
C3014
0.01
R3027
22K
C3203
10/63
Q3024
KTA1504/YG/-X
D3621 R3621
R3622 180K
1SS133-T2
C3621 470
4.7/50
D3221 R3221
R3222 180K
C3221 1SS133-T2 470
4.7/50
D3121 R3121
R3122 180K
1SS133-T2
C3121 470
4.7/50
R3422 180K D3421 R3421
C3421 1SS133-T2 470
4.7/50
D3321 R3321
R3322 180K
1SS133-T2
C3321 470
4.7/50 R3323
100K
Q3921
Q3801
KTC2026/Y/
WC301
QZW0112-001
2-12
LVA10684-A1
!
IC302
STK453-030A
9 10 11 12 13 14 15 16 17 18 19
R3406
3.3K
C3405
8P R3306
3.3K
R3405
56K
R3305
56K
SYSTEM CONNECTOR
C3305
8P
7
P.ON 8 6
SR 5 3
R 2 1
C3023
100/25
4 COM
R3301
3.9K
C3303
10/63
C3401 C3301
220P 220P
C3201 C3101
220P 220P
C3403
10/63 R3401
C3601
3.9K
220P
B/E/EN/EV/EE
C3631 C3632 R3631
0.1/50 0.1/50 4.7 1/4W
4 2
1 3
QSK0142-001
RY301
C3231
R3231
L3231
0.1/50 4.7 1/4W
B3101
C3131 R3131
4.7 1/4W L3131
0.1/50
B3102
C3431
R3431
L3431
0.1/50 4.7 1/4W
B3103
C3331
R3331
4.7 1/4W L3331
0.1/50
B3104
B/E/EN/EV/EE
B3101
EXCEPT B/E/EN/EV/EE
! D3901
GBU803 HS301
E70306-001
D3911
!
GBU803
2 3 4 1
C3903 C3904 C3905
2 3 4 1
0.022 0.022 0.022
C3913 C3914 C3915 C3916 C3917 C3918
0.047/50 0.047/50 0.047/50
0.047/50 0.047/50 0.047/50
D3902 R3902
1SS133-T2 4.7K
D3903
R3903
1SS133-T2 4.7K
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
SWLEVEL
SW
SL
J3001
L
QND0118-001 TO CA-DD1/3/8
9
10
11
1
TO LED PWB
2
3
TO SUBWOFFER
4
FROUT
0.45
C3232
0.01
FLOUT
0.45
C3132
0.01
SROUT
0.45
C3432
0.01
SLOUT
0.45
C3332
0.01
B3104
5
4
3 TO TRANS
2 (LVA10684-A3)
1