Service manual

MEX-XB100BT
47
IC803 BD49100RFS-E2 IC804 BD60HC0WEFJ-E2
IC1003 NJM2781RB1
EN
2
ECO
4
ADJ5
1
40 N.C.
37 GND4
43 VIN0
42 BCAP
44 GATE5
39 HSW2
LD4EN
3
ERR1
5
VOUT4
20
TIMER
19
VOCAL
18
CLCAL
17
VIN4
16
FB1
22
INV1
21
LDO5
(CONTROLLER)
TIMER
LATCH
INTERNAL
REGULATOR
HSIDE
SW2
38 HSW1
36 SW2
35 FB2
33 VOUT0
30 VOUT1
34 INV2
32 VIN1
31 ADJ1
HSIDE
SW1
LDO1
26 VIN2
28 VOUT2
27 GND3
29 ADJ2
25 SNSH
24 SNSL
23 GATE1
LDO2
LDO4
(CALIBRATE)
VIN3
15
ADJ3
14
RT
11
VOUT3
13
GND2
12
SYNC
9
GND1
10
ERR2
6
LDO3
TSD
SCL
8
SDA
7
I2C
I/F
OSC
DCDC2
DCDC1
(CONTROLLER)
OVP
41 VINSW
L_DETUVLO
BU_SW
BU_CONT
STB_LDO
8
VCC
5
EN
6
N.C.
7
N.C.
+
–
–
OVER CURRENT
PROTECITON
THERMAL
SHUTDOWN
SOFT
START
2
VO_S
1
VO
3
GND
4
N.C.
REG
2
IN+
4
NOISE
1
5IN–
7V+
8GND
6OUT
STBY
3
+
–
REGULATOR
IC1053 TPS2543RTER
DM_OUT 2
IN
DISABLE + UVLO + DISCHARGE
1
DP_OUT
3
ILIM_SEL
4
STATUS
9
DP_IN10
DM_IN11
OUT12
13
FAULT
15
ILIM_LO
14
GND
16
ILIM_HI
7
CTL2
8
CTL3
6
CTL1
5
EN
LOGIC
CONTROL
AUTO-
DETECTION
CDP
DETECTION
CURRENT
LIMIT
CURRENT
SENSE
CHARGE
PUMP
8-MS
DEGLITCH
8-MS DEGLITCH
(FALLING EDGE)
THERMAL
SENSE
DRIVER
OTSD
CURRENT LIMIT
SELECT
DCP
DETECTION
DIVIDER
MODE
CS
UVLO
C+
2
C–
4
FB
1
5GND
7ON/OFF
6CLK
8VOUT
V+
3
+
–
VREF
DIVIDER
INTERNAL CLK: 1/2
EXTERNAL CLK: 1/4
LEVEL
SHIFT
LEVEL
SHIFT
THERMAL
SHUT DOWN
CLOCK
GENERATOR
LEVEL
SHIFT
IC1054 MM1701CHBE
IC1055 NJW4190R-A (TE2)
1VOUT
2NC
3GND
4CN
5CONT
7NC
6NC
8VIN
CURRENT
LIMITTER
DRIVER
BIAS
REFERENCE
THERMAL
SHUTDOWN