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4. Trouble Shooting
- 67 -
4.7 Speaker Trouble
Test Points
Circuit Diagram
Figure 4-19.
Closed to Analog SW
(16 Poly MIDI)
C403
0.1u
47p
VMEM
R403
10K
C412
C411
47p
C404
R407
0.01u
0
0
R409
28
_WR
4.7
R414
HPOUT_L
10
HPOUT_R
11
5
IFSEL
6
PLLC
32
SDOUT
SPOUT1
17
SPOUT2
18
SPVDD 15
16
SPVSS
VDD
7
VREF
9
8
VSS
_CS
29
_IRQ
3
31
_RD
4
_RST
30
A0
1
CLK1
D0
27
D1
26
D2
25
D3
24
D4
23
22
D5
21
D6
20
D7
12
EQ1
EQ2
13
14
EQ3
EXT1
2
19
EXT2
YMU759B
U401
0
R401
100p
C405
0
R404
R408 3.3K
100K
R415
10K
R412
C407
47p
39K
R402
VBAT
39p
C409
NA
VMEM
R405
R406
NA
47p
C410
1
V+
150K
R417
COM1
3
COM2
9
GND
6
4
IN1
8
IN2
NC1
5
7
NC2
2
NO1
10
NO2
MAX4684EUB
U402
4.7
R416
R410 0
47p
C406
1000p
R413
0
C402 0.1u
C401
0.1u
SPK_REC_N
SPK_REC_P
C408
13MHZ_MIDI
MIDI_RESET
ADD00
RD
MIDI_CS
WR
MIDI_INT
DATA08
DATA09
DATA10
DATA11
DATA12
DATA13
DATA14
DATA15
SPKN
SPKP
RECP
RECN
SPK_RCV_SEL
CN201
U401
vibrator
Speaker
Soldering
check
C410
C404
R420
R404
C405
Speaker path
receiver path
These five components
make up the amplifier and
the filter stage of melody.
[C404 R402 C405 R404 R417]
Analog switch for select audio
path or midi path.
To the speaker at LCD
module via CN201.
C417
Содержание C1100
Страница 1: ...Service Manual Model C1100 Service Manual C1100 P N MMBD0034301 Date June 2004 Issue 1 0 ...
Страница 84: ... 83 5 DISASSEMBLY INSTRUCTION Figure 5 3 ...
Страница 85: ... 84 Figure 5 4 5 DISASSEMBLY INSTRUCTION ...
Страница 86: ... 85 5 DISASSEMBLY INSTRUCTION Figure 5 5 Figure 5 6 ...
Страница 87: ... 86 5 DISASSEMBLY INSTRUCTION Figure 5 7 Figure 5 8 3 1 1 2 ...
Страница 88: ... 87 Figure 5 9 5 DISASSEMBLY INSTRUCTION ...
Страница 89: ...5 DISASSEMBLY INSTRUCTION 88 Figure 5 10 Figure 5 11 ...
Страница 90: ...5 DISASSEMBLY INSTRUCTION 89 Figure 5 12 3 2 1 ...
Страница 106: ... 105 9 PCB LAYOUT 9 PCB LAYOUT ...
Страница 107: ... 106 9 PCB LAYOUT ...
Страница 114: ... 113 Figure 11 1 HW test program Figure 11 1 HW test program 11 STAND ALONE TEST ...
Страница 118: ... 117 13 EXPLODED VIEW REPLACEMENT PART LIST 13 EXPLODED VIEW REPLACEMENT PART LIST 13 1 EXPLODED VIEW ...
Страница 119: ... 118 Note ...