Part2 (Control) - Philips AZ9218 Service Manual

Portable compact disc player
Table of Contents

Advertisement

1
2
PART2 – CONTROL
1401
ESD
A
KEY1
TO 7400, PIN16
7400
B
49
SEG2
50
SEG1
51
SEG0
52
COM3
53
COM2
C
54
COM1
55
COM0
+2.7V
2400
2,6V
56
V3
100n
2401
1,7V
57
V2
100n
0,9V
58
V1
D
2402
1,5V
59
C1
100n
1,5V
60
C0
0V
61
P30
BEEP
DV0
TO 2350 (PART1)
PD03
1,5V
62
DM_PWM
P31
TO 3959 (PART1)
TC3
PD04
E
1,2V
63
S_MUTE
P32
TO 7250 (PART3)
TC4
PD06
2,5V
64
P33
TC6
F
R....only for Cord R/C
X....component only forseen (not in use)
1
2
CS 46 675
4-2
3
4
FROM/TO DISPLAY (connected via membrane keyboard)
48
47
46
45
44
43
42
41
40
LCD - DRIVER
LCD - DRIVER
I/O PORT P7
TMP86CH29LF
ROM
8-BIT-CPU
P2
P2
1
2
3
4
5
6
7
8
9
2,5V
0,6V
2,3V
3,0V
2,5V
5400
3407
+UP
10R
4M233
CSTCC
3
4
5
6
+UP
+UP
+2.7V
3416
+UP
KEY2
ESD
TO 7400,
PIN16
1K
3415
0V
2,5V 2,7V
1K
39
38
37
36
35
34
33
P54
32
SEG19
P53
31
SEG20
P52
30
SEG21
P51
29
SEG22
P50
28
SEG23
P17
27
SEG24
SCK
P16
RAM
26
SEG25
TXD/SO
SEG26
25
P15
RXD/SI
SEG27
24
P14
INT3
SEG28
23
P13
INT2
SEG29
22
P12
INT1
SEG30
21
P11
SEG31
20
P10
19
AVDD
8 BIT A/D Converter
18
VAREF
ADC INPUT I/O PORT P6
STOP5
17
P67
10
11
12
13
14
15
16
1,6V
0,3V
2,0V
1,4V
0,7V
2,5V
A
5
6
4-2
7
1418
ESD-11H130
A
1
2
3
4
ESD
RESUME
HOLD
B
0V
CHG_ON
TO 7263 (PART3)
0V
MUTE
2,3V
HP_ON
TO 7350 (PART1)
2,7V
DBB_STEP
0V
DBB_ON
C
3402
2,1V
SCL
100R
TO 7801,7850 (PART1)
3403
1,9V
SDA
100R
2,7V
PORES
TO 7801 (PART1)
2,7V
NPC_RESET
D
TO 7850 (PART1)
2,7V
YMLD
0,3V
RAB
TO 7801 (PART1)
2,2V
SILD
3411
2,5V
+UP
+UP
10R
E
2,5V
KEY1
FROM 1400
KEY2
+UP
RC
FROM 1350 (PART1)
F
DC voltages measured in
PLAY-mode, DBB off
V
EVM
Set supplied via mains adaptor
7
1401 A5
1418 A6
1430 A5
2400 C2
2401 D2
2402 D2
2403 F3
2404 E6
2405 F5
3400 A6
3401 A6
3402 C6
3403 C6
3404 D1
3405 D1
3406 A5
3407 F3
3408 F6
3409 F6
3411 E6
3412 D1
3415 A6
3416 A6
3417 A5
5400 F2
7400 B2

Advertisement

Table of Contents
loading

Table of Contents