Service manual

GeneralDescription
Micronas Dec. 6, 2002; 6251-573-1-1AI 1-23
Fig.PMQFP144-2package
VCT 49xyI
VIN9
VIN8
VIN10
VIN7
VIN6
VIN3
VIN2
VIN1
VOUT1
VOUT2
VOUT3
VSUP1.8FE
GND
VIN5
VIN4
GND
VSUP3.3FE
XROMQ
P10
P11
P12
P13
P14
P15
P16
P20
P17
SDA
DFVBL
PWMV
P21
SCL
EXTIFQ
VIN11
P37 / 656IO7
P36 / 656IO6
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
66
65
67
68
69
70
71
72
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
133
134
135
136
137
138
139
140
141
142
143
144
132
73
74 75 76 77
78 79
80 81
82 83
84
85
86
87
88
89
90 91 92
93 94 95
96 97 98
99
100 101 102
103 104 105
106 107 108
GIN
RIN
FBIN
GNDM
BIN
SVMOUT
RSW2
EW
VERT-
VERT+
RSW1
SENSE
VSUP5.0BE
TEST
GND
GND
VREFAU
VSUP8.0AU
SPEAKERR
SPEAKERL
AOUT1L
AOUT1R
AOUT2L
AOUT2R
AIN3R
AIN3L
AIN2L
AIN2R
AIN1L
AIN1R / SIF
TAGC
VREFIF
IFIN-
IFIN+
ROUT
GOUT
1 2 3 4 5
6
7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
22 23
24 25 26 27
28 29
30 31
32
33 34 35 36
BOUT
VRD
XREF
VSUP3.3BE
GND GND
VSUP3.3IO
VSUP3.3DAC
GNDDAC
SAFETY
HFLB
HOUT
VPROT
ADB11
ADB9
ADB13 ADB14 ADB18 ADB16 ADB15
PSWEQ
ADB17
STOPQ
ENEQ
ADB12
ADB7
RSTQ
ADB5 ADB4
ADB19
RDQ
WRQ
OCF
ALE
ADB6 ADB8
GNDIF P25 / 656HIO P26 / 656VIO P30 / 656IO0 P31 / 656IO1 P32 / 656IO2 VSUP3.3EIO GNDEIO P33 / 656IO3 P34 / 656IO4 P35 / 656IO5 RESETQ VSUP3.3DIG GND GND VSUP1.8DIG XTAL1 XTAL2 P22 P23 PSENQ ADB10 DB7 DB6 DB5 DB4 DB3 DB2 DB1 ADB3 ADB2 DB0 ADB0 VSUP5.0IF ADB1 P24 / 656CLKIO
CIRCUIT DESCRIPTIONS