Haier HLC22R1 Service Manual page 23

+12V
FB70
FB
CB994
0.1uF
OPAV120 AUDIO INTERNAL DAC AV R/L OUT
R1728
FB71
R1729
47K
CB998
47K 0.1uF
+5V
VC5
L148 R1775 47K
FB
CE644 CB999
+
0.1uF
220uF/16v
C220UF10V/D6H11
A
R146
C691
2.2nF
C669 C693
R2031 470 R1777 3.9k
10uF/10v 10uF/10v
AL1
2
C0805/SMD C0805/SMD
VREF_PT2308 3
5
C670 C694
R2032 470 R1778 3.9k
10uF/10v 10uF/10v
AR1 6
C0805/SMD C0805/SMD
C692
2.2nF
R1783
HPDET#
NO PLUG: HPDET#＝HIGH
PLUG: HPDET#＝GND
OPAV120
OPAV120
CB996
+ CE3
0.1uF
CB997
47uF/16v
0.1uF/NC
OPAVREF
FB OPAVREF
C635
1uF
+ CE629
22uF/16v
VREF_PT2308
CE645 C650
+
0.1uF
R1776
22uF/16v
47K
REMOVE INDUCTOR
CE631 L149
HPOUTL
VC5
3.9k->8.2K FB
100uF/16v
U59
I/L
CE635 L150
-
+ HPOUTR
VREF
VREF
+ FB
- 100uF/16v
I/R
PT2308
3.9K->8.2K Change to 100uF to
improve low
frequency
feature.(old=22uF)
DV33
R1644
10k
T73 P44 T74
1 5
HP L
2 6
GND R
7
L
R1616 R1615
1K 1K
SLIM_phonejack
HEAD PHONE OUTPUT
A
+12V
Q8
Option For 5V detect 2N3906
3 2
Need fine tune resistance
+5V
R298 5.1K
D16 R302
NS/1N4148
4.7K
R308 NS/51K R309 NS/56K
Q11
1
2N3906
R325
NS/1K
OFF_MUTE
R301 NS/10K
GPIO_5 Q12 R300
1
NS/2SD2653K 100K
GPIO_5
4 GPIO_5
MUTE
8 MUTE
C667
AL1
R1757
NS/10K
C668
AR1
R1764
NS/10K
HPOUTL
HPOUTR
A
1,2,3,4,5,6,7,8,9,10,11,12,13 GND
CN8
T29
+5V
1,2,5,8,9 +12V
SPDIF
1
4 OSDA0
L1 T28 2
4 OSCL0
3
T27
FB/NC SIP_3P_2.0/NC
13 AL1
13 AR1
13 HPDET#
8 MUTE
R299 1K
R303 2K
10 SPDIF
+
CE25
8 AVR1_OUT/AMP
470uF/16V
8 AVL1_OUT/AMP
C330UF25V/D8H14
D15 1N4148
MUTE
R307
100K
R1753 33K
C641
120pF
R1754 R1755 5.1K C0603/SMD U55A
CE640
10uF/10v
R1756
2
1
C0805/SMD
10K OPAVREF 3
C642 22uF/16v
820pF NJM4558 OPA R1758
C0603/SMD OPAV120
NS/10K
R1760 33K
C643
120pF
R1761 R1762 5.1K C0603/SMD U55B
CE642
10uF/10v
R1763
6
7
C0805/SMD 10K C644 OPAVREF
5
820pF 22uF/16v
C0603/SMD NJM4558 OPA R1765
OPAV120
NS/10K
GND
+12V
OSDA0
OSCL0
AL1
AR1
HPDET#
MUTE
SPDIF
AVR1_OUT/AMP
AVL1_OUT/AMP
22 A
AVL1_OUT/AMP
R1759 10K Q60
MUTE 2N3904
1
SOT23/SMD
22
AVR1_OUT/AMP
R1766 10K Q61
MUTE 2N3904
1
SOT23/SMD