Philips PET944 Service Manual page 25

20 19 18 17
20
7.0 ELECTRICAL DIAGRAM
19
CIRCUIT DIAGRAM-BATTERY
18
CHARGE_DCIN
CHARGE_DCIN
17
16
15
14
DR43
13
1K
12
DIC2
TL431
TL431
3
GND
11
10
DR40 20K/1% DR41 20K/1%
9
8
7
TP22
DR10
TP23
6
30k DC14
4.7uF/1206
5
4
CHARGE_LED
DR2
DC8
0.47u
3 10k
2
1
20 19 18 17
16 15 14 13
DD3
IN4148
DC1
DD5
47uF/25V
1
IN4148 DR5 3904
100 DR1
DC18
680/0805
102
DQ4
1
DIP/9013 DQ5
1
3904
DC41 DR60 DR52
104
4.7K 3.3K
DIC1
DR6
TMOD TMOD
1
TP20 PA3/PFD PA4/TMR
TCS
TCS
2
TP21 PA2 PA5/INT
10
TWR
TWR
3
PA1 PA6
TDO TDO
4
PA0 PA7
DR4
5
PD0/PWM OSC2
6
VREF OSC1
470
7
VSS VDD
8
PB0/AN0 RES
9
PB1/AN1 PB4/AN4
CHARGE_LED
10
PB2/AN2 PB3/AN3
DC6
HT46R52A
0.47u
16 15 14 13
12 11 10 9
DQ3
DL6 33uH/CD54
HT772J
2 1
DR8
DC4
DC2
DD2
10 220uF/16V 2.2uF/1206
DQ2
MBRS140 DC3
102
DR3
680/0805
DET_PLAY
DET_PLAY
DR22 100K/1%
1.5K
DC10
DR23 104
DC20
0.1U
47K
TP19
TVCC
TVCC
DR11 DR12 DR13
20
DC15 DC25
19
470p 103
10K/1% 10K 100K
18
DR39 470
17
16
DR25
15
DR15
14
10K
13
DC13
100K
12
104
11
NTC
10K
12 11 10 9
8 7 6 5
DR50 1K
DC11
DIC3 104
3 4
VM VC
8242
DR51
2 6
CO VSS
470 DC7
DR33 DR34 DR53 DR54 104
NC 1K 4.7M
9926 DQ13
DR31 DR32
100K/1% NC DC12 104 DC16 104
DQ12 3906
3 2
DR64 100K
DR63
DR9 470 DC5
2.2uF/1206
1M
DC9 DR61 DR62 DB3 HT7033
1 2
OUT VDD
2.2uF/1206
4
VDD
0.1 0.1
DD1 IN4148 DR7 1K
2 1
8 7 6 5
4 3 2 1
BAT+
B+
Discharge
Discharge
BM
BM
DR55 1K
BAT-
B-
DR56 DR57
220K/1% NC
DQ15
1
3904
DR58 DR59
DC17
104 330K/1% NC
4 3 2 1
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1