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Extension Board: Audio Amplifier - Philips QCG1.0S Service Manual

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Circuit Diagrams and PWB Layouts

Extension Board: Audio amplifier

5
AUDIO_R
5
AUDIO_R
D
AUDIO_L
5
AUDIO_L
Total Gain
Gain0
Gain1
L
L
+ (22)/34 dB
L
H
+3.3V_ADU
+ (28)/40 dB
H
L
+ (34)/46 dB
H
H
+ (16)/28 dB
9
AUD_GAIN1
9
AUD_GAIN0
9
AUD_NCDRC1
9
AUD_NCDRC0
C
DRC1
DRC0
Mode
L
(Normal)
L
L
H
Non-clip
H
L
DRC1
H
H
DRC2
1uF < C396 < 4.7uF
R384
0R/6
R385
82K/6
R558
B
R559
10k/6/NC
4.7K/6
2
9
Limit
Q70
MMBT3904
+12V_SW
VCC_AMP
L52
121A4/8/NC
+5VSB
U28
L54
3
VIN
121A4/8
1
ADJ/GND
+
C212
AP1117ELA/TO223
A
470uF/16V
R397
330R/6F
QCG1.0S LA
10.
4
U27
YDA148
R364
0R/6
C190
1uF/6
7
INRP
R365
47K/6
C193
R366
0R/6
C194
1uF/6
6
INRM
220pF/6/NC
R367
0R/6
C195
1uF/6
3
INLP
R368
47K/6
C198
R369
0R/6
C199
1uF/6
4
INLM
220pF/6/NC
L82 121A4/8
R370
10K/6/NC
R371
10K/6
R372
10K/6
R373
10K/6/NC
25
GAIN1
R374
0R/6/NC
24
GAIN0
R375
0R/6/NC
R376
0R/6/NC
R377
0R/6/NC
23
NCDRC1
R378
75R/6
R379
75R/6/NC
22
NCDRC0
R380
75R/6/NC
R381
75R/6
VCC_AMP
C207
1uF/6/NC
1
PVDDREG
+3.3AVDD_AMP
C209
1uF/6
C208
0.1uF/6
R554
0R/6
R386
200K/6
2
AVDD
9
PLIMIT
8
AVSS
5
VREF
C210
0.1uF/6
R394
200R/6F
+3.3V
+3.3V_ADU
L55
2
VOUT
121A4/8
4
OUT
+
C213
C214
10uF/50V
0.1uF/6
4,5
EN 62
3
AGND
L46
30
OUTPL1
31
OUTPL2
27
OUTML1
L47
28
OUTML2
12
OUTPR1
L48
11
OUTPR2
15
OUTMR1
L49
14
OUTMR2
C201
1uF/6
10
PVDDPR
16
PVDDMR
13
PVSSR
32
PVDDPL
C204
1uF/6
26
PVDDML
29
PVSSL
33
HEAT PAD
AGND
21
CKIN
20
TP1
CKOUT
R387
PROTN
18
PROTN
AMP_SLEEP
R389
17
SLEEPN
19
MUTEN
R393
L50
47K/6
121A4/8
L51
121A4/8
AGND
A9VOUT
R395
3.3K/6
R396
NC
MUTE
1
MUTE
C216
0.1uF/6
Q48
DTC144E
2009-Feb-20
2
LC Filter for 8 ohm
22uH
SPKLO+
C189
0.1uF/8
C191
C192
0.1uF/8
0.22uF/8
22uH
AGND
SPKLO-
SPKRO+
22uH
C196
0.1uF/8
C197
C200
0.1uF/8
0.22uF/8
22uH
AGND
SPKRO-
VCC_AMP
C202
1uF/6
+
C205
1uF/6
C206
+
100uF/25V
+3.3AVDD_AMP
R382
10K/6
VCC_AMP
R383
NC
R388
10K/6
120K/6/NC
0R/6
R390
82K/6/NC
R391
NC
+3.3V_ADU
R392
NC
Audio_SLEEP
1
Audio_SLEEP 9
C211
Q47
0.1uF/6/NC
DTC144E
+5V_SW
+5V_SW
+12V_SW
+12V_SW 4,7,9,11
TechView International Technology Inc.
No.361,5F.,Fu-Sing 1 Rd.,Gueishan Hsiang, Taoyuan, Taiwan
Title :
08.Audio AMP
Document Number:
SCH File Name :
Standard Circuit Design
P
C
B
i F
e l
N
a
m
e
:
<PCB Name>
Approval:
Check:
D
t a
: e
Friday, January 09, 2009
S
h
e
t e
1
SPKLO+
7
SPKLO-
7
SPKRO+
7
SPKRO-
7
1,3,4,9
A
Tel :+886-3-3287088
Fax:+886-3-3288066
<Doc>
R ev:
B2A
Size :
A4
P
C
B
R
e
: v
<Rev>
Draw:
6
o f
11
18430_526_090204.eps
090204

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