4. TROUBLE SHOOTING
- 78 -
4.8 Speaker Trouble
Soldering Check
U207
C237
(SPK_N)
C241
C238 (SPK_P)
Test Points
Circuit Diagram
Figure 4-19
2V85_VCAM
20K
R232
2V85_VCAM
47p
C238
C239
0.1u
R237
24K
C237
47p
0.1u
C240
0.1u
C233
VSS
_CS
29
_IRQ
3
31
_RD
4
_RST
28
_WR
12
EQ2
13
14
EQ3
HPOUT_L
10
HPOUT_R
11
IOVDD
32
2
LED
MTR
19
NC
5
6
PLLC
SPOUT1
17
18
SPOUT2
15
SPVDD
16
SPVSS
VDD
7
VREF
9
8
30
A0
1
CLK1
D0
27
D1
26
D2
25
D3
24
23
D4
22
D5
21
D6
20
D7
EQ1
YMU762C-QZE2
U207
C236
1000p
82K
R240
C235
390p
0.01u
C234
C242
1u
VBAT
R233
0
1u
C241
R241
3.3K
SPK_P
SPK_N
13MHz
SPKP_P
ADD00
DATA08
DATA09
DATA10
DATA11
DATA12
DATA13
DATA14
DATA15
_MIDI_CS
_MIDI_IRQ
_RD
_MIDI_RST
_WR
Содержание C3380
Страница 1: ...Service Manual Model C3380 Date November 2005 Issue 1 0 Service Manual C3380 ...
Страница 3: ... 4 ...
Страница 83: ...4 TROUBLE SHOOTING 84 4 11 KEY backlight Trouble Test Points Figure 4 22 ...
Страница 98: ...4 TROUBLE SHOOTING 99 Yes No Yes No Replace M201 Establish a call Replace U101 Software Re_download ...
Страница 109: ...Note 110 ...
Страница 116: ... 117 8 PCB LAYOUT ...
Страница 117: ... 118 8 PCB LAYOUT ...
Страница 125: ...10 STAND ALONE TEST 126 Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
Страница 129: ... 130 ...
Страница 131: ... 132 ...