Read JBL MS 8 Service Manual online
1
2
3
4
5
6
A
B
C
D
6
5
4
3
2
1
D
C
B
A
POW_EN#
DSPRESET
DSPLY_PWR_EN#
PWRAMPMUTE
LED_EN
LED_EN
5V_IPOD_EN#
DSPLY_PWR_EN#
DSPRESET
POW_EN#
PWRAMPMUTE
5V_IPOD_EN#
VTEMP
VTEMP
R232
680
3
4
U10B
74HCU04
3
2
1
Q3
MUN5214T1
P0.1
1
P0.0
2
GND
3
D+
4
D-
5
VDD
6
REGIN
7
VBUS
8
/RST/C2CK
9
P3.0/C2D
10
P2.7
11
P2.6
12
P2.5
13
P2.4
14
P2.3
15
P2.2
16
P2.1
17
P2.0
18
P1.7
19
P1.6
20
P1.5
21
P1.4
22
P1.3
23
P1.2
24
P1.1
25
P1.0
26
P0.7
27
P0.6
28
P0.5
29
P0.4
30
P0.3
31
P0.2
32
U23
C8051F347
5
6
U10C
74HCU04
1
TP11
TEST POINT
C391
0.1uF
0.1uF
C304
0.1uF
t
RT11
NCP18XH103J03RB
10
11
U10E
74HCU04
8
9
U10D
74HCU04
1
2
3
2
3
J4
1
2
14
7
U10A
74HCU04
12
13
U10F
74HCU04
C382
0.1uF
0.1uF
R81
7.68k 1%
C323
0.1uF
1
2
3
2
3
J12
R80
2.32k 1%
1
2
LED1
BLUE LED
DGND
DGND
DGND
5V_ON
DGND
3P3V_ON
5V_ON
DGND
3P3V_ON
DGND
DGND
DGND
DGND
3P3V_ON
DGND
DGND
USB_D-
USB_D+
VBUS
I2C_SDA
I2C_SCL
DAC_MUTE
MUX0
DAC_RESET#
ADC_PDN#
MUX1
MUX1
RESET#
REM_IN_TTL
LOWVOLT#
AUD_SENSE
I2C_SCL2
I2C_SDA2
MICDETECT#
DSP_GP1
DSPLY_PWR_EN
DSPRESET#
POW_EN
MUTE#
C2 Interface forDebug andProgramming ofMicrocontroller
VT EM P can be a ma xi mum o f2.4V
The microcontroller internally regulates
the 5V supply down to 3.3V. The 3.3V
output is available as a supply for
other devices.
the 5V supply down to 3.3V. The 3.3V
output is available as a supply for
other devices.
DW GNO:
PART NO:
PART NAME:
PRODUCT MODE:
SCALE: 1:1
UNIT: MM
SIZE:
REV:
DRAWN BY:
CHECKED BY:
APPROVED BY:
DATA:
DATA:
DATA:
DESCRIPTON
DATA
APPROVED
DESCRIPTON
REV
REV
Place
Place
DATA
EVR
Microcontroller
MS-8 MAIN AMP
T4
ChengHao
2009.09.08
Sheet 6 of 18
B
5,7
17,18
17,18
17,18
17
17
17
17
10
7
2
14
2,18
7
2,18
2,18
8
8
8
9
9
8
8
9
9
7
18
2
7,18
The UART TXD and RXD
are fixed as P0.4 and
P0.5 respectively.
are fixed as P0.4 and
P0.5 respectively.
R282
63.4K
R297
10K
C401
0.1uF
0.1uF
DGND
DGND
VCAR
MS-8
97
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