HBD-E280/T28
HBD-E280/T28
5050
5-23. SCHEMATIC DIAGRAM - AMP Board (1/2) -
• See page 55 for IC Block Diagrams.
Note: When IC3100, IC3200 and IC3300 on the MAIN board are replaced, spread the compound
referring to “NOTE OF REPLACING THE IC3100 AND IC3200 ON THE AMP BOARD
AND THE COMPLETE AMP BOARD” on servicing notes (page 9).
AMP
BOARD
91
(2/2)
C
CN451
SPEAKER
BOARD
B
CN451
SPEAKER
BOARD
SPEAKER
BOARD
D
CN451
IC B/DIC B/DIC B/D
3.3
0
0
3.3
0.7
0
3.3
0
15.3
15.3 15.3
15.3
00
15.3
15.3
0
15.3
15.3
0
15.3
15.3
0
15.3
15.3
0
15.3
15.3
0
15.3
15.3
0
15.3
15.3
0
15.3
15.3
0
15.3
15.3
0
15.3
15.3
0
12
3.3
1.6
3.1
1.6
1.6
1.6
3.1
12
12
3.3
3.3
12
26.4
33
33
33
33
33
33
12
26.4
26.4
26.4
15.5
15.5
15.5
15.5
26.4
3.3
1.6
3.3
3.1
33
1.6
26.4
12
33
12
12
26.4
33
15.5
15.5
26.4
3.3
12
33
33
33
12
1.6 15.5
3.1
1.6
15.5
26.4
3.3
1.6
3.3
3.1
33
1.6
26.4
12
33
12
12
26.4
33
15.5
15.5
26.4
3.3
12
33
33
33
12
1.6 15.5
3.1
1.6
15.5
3.3
3.3
3.3
47
R3132
C3109
0.1
0.1
C3226
JL3202
47
R3331
35V
100
C3221
35V
C3325
2200
35V
C3322
100
C3115
2200
35V
JL3313
TP3304
C3326
0.1
JL3210
C3309
0.1
TP3204
DSC500100L
Q3551
0.1
C3119
TP3302
JL3113
JL3102
35V
100
C3111
EB3008
47
R3234
47
R3131
EB3001
C3125
2200
35V
TP3103
44 383940414243
7654321
37 36 35 34 33 32
891011
28293031
171615141312
27 26 25 24 23
2221201918
CXD9981TN
IC3200
GVDD_B
/OTW
NC
NC
/SD
PWM_A(+)
/RST_AB
PWM_B(-)
OC_ADJ
GND
AGND
VREG
M3
M2
M1
PWM_C(+)
/RST_CD
PWM_D(-)
NC
NC
VDD
GVDD_C
GVDD_D
BST_D
NC
PVDD_D
PVDD_D
OUT_D
GND_D
GND_C
OUT_C
PVDD_C
BST_C
BST_B
PVDD_B
OUT_B
GND_B
GND_A
OUT_A
PVDD_A
PVDD_A
NC
BST_A
GVDD_A
TP3202
0.1
C3209
R3133
47
JL3212
35V
C3312
100
3
2
1
4
10uH
L3201
0.1
C3116
TP3101
TP3301
TP3102
35V
100
C3212
JL3060
0.1
C3108
0.1
C3216
JL 3111
TP3303
0.1
C3218
47
R3332
JL3312
35V
100
C3222
R3334
47
35V
100
C3112
RT3AMMM
Q3102
DSC500100L
Q3553
44 383940414243
7654321
37 36 35 34 33 32
891011
28293031
171615141312
27 26 25 24 23
2221201918
CXD9981TN
IC3100
GVDD_B
/OTW
NC
NC
/SD
PWM_A
/RST_AB
PWM_B
OC_ADJ
GND
AGND
VREG
M3
M2
M1
PWM_C
/RST_CD
PWM_D
NC
NC
VDD
GVDD_C
GVDD_D
BST_D
NC
PVDD_D
PVDD_D
OUT_D
GND_D
GND_C
OUT_C
PVDD_C
BST_C
BST_B
PVDD_B
OUT_B
GND_B
GND_A
OUT_A
PVDD_A
PVDD_A
NC
BST_A
GVDD_A
RT3CLLM
Q3552
3
2
1
4
10uH
L3202
EB3002
35V
100
C3122
47
R3231
TP3201
JL3302
TP3203
JL3311
JL3213
C3308
0.1
C3225
2200
35V
R3134
47
RT3AMMM
Q3202
3
2
1
4
10uH
L3101
3
2
1
4
L3301
10uH
35V
C3321
100
35V
C3311
100
0.1
C3126
3
2
1
4
L3302
10uH
C3318
0.1
MC2840-T112-1
D3551
JL3110
JL3211
EB3007
SL3001
35V
100
C3211
0.1
C3219
47
R3233
R3333
47
RT3AMMM
Q3101
3
2
1
4
10uH
L3102
C3315
35V
2200
SL3000
TP3104
0.1
C3118
JL3551
47
R3232
C3316
0.1
44 383940414243
7654321
37 36 35 34 33 32
891011
28293031
171615141312
27 26 25 24 23
2221201918
CXD9981TN
IC3300
GVDD_B
/OTW
NC
NC
/SD
PWM_A
/RST_AB
PWM_B
OC_ADJ
GND
AGND
VREG
M3
M2
M1
PWM_C
/RST_CD
PWM_D
NC
NC
VDD
GVDD_C
GVDD_D
BST_D
NC
PVDD_D
PVDD_D
OUT_D
GND_D
GND_C
OUT_C
PVDD_C
BST_C
BST_B
PVDD_B
OUT_B
GND_B
GND_A
OUT_A
PVDD_A
PVDD_A
NC
BST_A
GVDD_A
SL3002
RT3AMMM
Q3302
RT3AMMM
Q3201
C3319
0.1
JL3112
35V
100
C3121
RT3AMMM
Q3301
0.1
C3208
C3215
2200
35V
C3911
0.01
C3913
0.01
C3917
0.01
C3915
0.01
C3921
0.01
C3923
0.01
C3927
0.01
C3925
0.01
C3941
0.01
C3943
0.01
C3947
0.01
C3945
0.01
C3003
0.001
0.01
C3554
10k
R3554
10k
R3553
22k
R3203
22k
R3303
22k
R3103
R3111
100k
R3110
100k
100k
R3108
100k
R3107
100k
R3207
100k
R3210
100k
R3211
100k
R3208
100k
R3307
100k
R3310
100k
R3308
100k
R3311
100k
R3560
0
R3041
0
R3042
R3044
0
R3045
0
0
R3040
0
R3043
33k
R3557
R3558
4.7k
47k
R3555
2
3
4
5
5P
CN3200
NC
1
SW -
SW +
C -
C +
0.1
C3552
0.1
C3551
1M
R3552
100k
R3551
1
C3223
C3224
1
1
C3114
1
C3113
1
C3214
1
C3213
1
C3124
1
C3123
C3314
1
C3324
1
C3323
1
C3313
1
1
C3203
1
C3103
1
C3303
10V
47
C3553
2
3
4
5
5P
CN3300
NC
1
SR -
SR +
SL -
SL +
TP3205TP3206TP3207TP3208
TP3305TP3306
TP3308 TP3307
TP3105TP3107 TP3106TP3108
2
3
4
5
6
6P
CN3100
NC
1
FR -
GND (NC)
FR +
FL -
FL +
C3202
0.1
0.1
C3201
0.1
C3205
0.1
C3206
0.1
C3204
C3301
0.1
0.1
C3302
C3306
0.1
0.1
C3305
0.1
C3304
0.1
C3105
0.1
C3104
0.1
C3106
0.1
C3101
C3102
0.1
0.1
C3120
0.1
C3110
0.1
C3117
0.1
C3107
0.1
C3207
0.1
C3210
0.1
C3217
0.1
C3220
C3320
0.1
C3310
0.1
C3307
0.1
C3317
0.1
100k
R3109
C3127
2.2
C3128
2.2
100k
R3112
100k
R3209
C3227
10
C3228
2.2
100k
R3212
100k
R3309
2.2
C3327
C3328
2.2
100k
R3312
C3914
1000p
C3912
1000p
C3918
1000p
C3916
1000p
C3942
1000p
C3948
1000p
C3944
1000p
C3924
1000p
C3922
1000p
C3928
1000p
C3926
1000p
C3946
1000p
C3555
0.1
1.5k
R3559
22k
R3556
POWER AMP
IC3100IC3200IC3300
1
3
2
15
8
10
14
18
16
20
19
11
12
17
5
4
13
6
9
7
AMP BOARD (1/2)
OUTPUT LEVEL
DETECT
DC DETECT
PROTECT
DETECT
-2
-1
-1
-2
OVER LOAD
DETECT
-1 -2-1 -2-1 -2-1 -2
-1 -2
OVER LOAD
DETECT
OVER LOAD
DETECT
OVER LOAD
DETECT
OVER LOAD
DETECT
OVER LOAD
DETECT
POWER AMPPOWER AMP
13
A
15
K
E
D
C
4 14 16 178
G
B
1 18113 10
I
9
J
F
H
M
L
6257 12
JL3310
(Page 52)
(Page 52)
(Page 52)
(Page 51)
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