Philips AZ7900, Service Manual

Page: 14 / 20

4-1 4-1
CS 46 651
VOLTAGE
DOUBLER
VR REFERENCE
DC/DC UP/DOWN CONVERTER
SQUARE WAVE GEN.
R80 R73 R72 R71 R42 R41 R40 AIN2 AIN1 AIN0
R63
R62
R61
SEG15
SEG14
SEG13
SEG12
R60
AIN3 R43
4-BIT CPU
ROM
RAM
ADC INPUT
I/O PORT
I/O POR
T
SERIELL INTERF
A
C
E
SLOW CLOCK
I/O PORT
I/O POR
T
POR
T
OUTPUT
LCD - DRIVER
ZIN
INT1
T1
R82
R83
SI
SO
SCK
R90
R91
R92
KE0
HOLD
PULSE XINS XOUTS INT2 T2 R81
7 8 9 10 11 12 13 14
A
B
C
D
E
F
G
H H
1250 A7
1251 A8
1403 A2
1418 F1
1 2 3 4 5 6 7 8
2 3 4 5 6
1430 G4
1950 H14
1951 E14
2251 B9
2252 A10
2253 C10
2254 A10
2255 A11 2256 B12
2257 A13
2258 A13
2259 A13
2260 B12
2265 A6 2268 C14
2269 B11
2400 B4
A
B
C
D
E
F
G
2953 D10
2954 D11
2957 E13
2958 H13
2960 F14
2961 H13
2962 E13
2964 H10 2965 H10
2966 F10
2967 E9
9 10 11 12 13 14
1
3251 B7
3253 C7
3254 A9
3256 B7
3257 A8
3258 C9
3259 B9
3261 B9 3262 B10
3263 B10
3264 A10
3265 B12
3266 B14
3267 C14 3268 C13
3269 G1
3270 G1
3271 G1
3273 G2
3280 B11
2401 D2
2402 C2
2405 F2
2406 F2
2950 G8
2951 F10
2952 D10
3407 A5
3408 A6
3409 A6
3410 F4
3411 G4
3412 F1
3413 F1
3414 A3
3416 F4
3431 E2
3432 D2
2970 F14
2971 G14
2973 F11
2974 G11
2975 H11
2976 F11
3250 A8
3967 F10
3968 F10
3969 G10
3970 E10
5250 A12
5251 A13
5400 C1
6251 A9
6252 A10
6253 A12
6254 B14 6256 A7
6257 B7
6950 D9
6951 C10
7250-A B10 3290 C7
3400 C2
3401 D2
3403 A2
3404 A3
3405 B2 3406 B2 7254 A9
7255 A11
7256 B12
7257 A12
7400 B2 3953 E10
3954 G9
3955 G9
3956 E8
3961 G10
3962 D9 3966 H10
F252 A7
F254 B11
F255 A14
F256 A14
F259 G2
F400 C2
F402 A2
F403 A3
7250-B B11
7250-C B11
7250-D D10
7250-E E9
7250-F E8
7252 C8
7253 C9
ESD
F404 A3
F405 A3
F406 A6
F407 A5
F408 A6
F950 H14 F951 H14
F952 F14
F953 F14
F954 E14
F955 E10
F956 G11 I250 A8
I251 A8
7950 E11
7956-A G2
7956-B G9
F250 A7
F251 A7
A
1K2
3966
BAS216
6252
47K
3954
3269X
1M
TL431ACD
6254
2 3 6 7
1
4
5
8
470p
+A
+3
2958
100n 2954
+3
8M46
CSTCC
5400
0R
3970
3962
150K
680R
3268
2400
1u
22u
2259
4u7
100K 3405
BAS216
6251
2255
13
7
14
12
3409
47K
F402
74LV14
7250-F
7956-A
3
2
1
8
4
2402
220n
3412 220K
LM2904
2953 100n
47p
2260X
3270 220K%
BAS216
6253
22n
2952
100n 2950
3251 100K
6257
BA
V70
7250-A
74LV14
1
7
14
2
F255
3257
10K
F406
VDD
39
VLC
34
VSS
16
XIN
30
XOUT
31
3956
1M
25
26
27
RESET
32
SEG0
40
SEG1
41
SEG10
6
SEG11
7
SEG2
42
SEG3
43
SEG4
44
SEG5
1
SEG6
2
SEG7
3
SEG8
4
SEG9
5
12 13 14 15
8
9
10
11
R70
17 18 19 20 21 22
23
24
TMP47C422
7400
0211
COM1
35
COM2
36
COM3
37
COM4
38
33
P50
28
P51
29
1 2 3 4
100K
3250
2974 470p
1418 ESD-11H130
2258
47u
10u
5251
2K2
3961
F408
74LV14
7250-D
9
7
14
8
BC807-40
3267
47K
1u
2257
7257
74LV14
7250-C
5
7
14
6
2961
100K 3256
+3
470p
3431
100R
470R
3265
10K
3406
470p
BAS216
6951
T630mA
1251
SP391
2976
2971
1u
F403 F404
F251
A
3969 18K
1250
DC JACK
47K 3408
F954
47p
2401
100n 2265
100n 2251
3254
100K
8K2
3967
3259
10K
3258
10K
7252
BC847BW
F955
+3
F400
ESD
2957
470p
1950
1
2
1n5
2966
47K
3290
PH-B
F952
11
7
14
10
10K
3953
47K
3955
7250-E
74LV14
SPPB51
1430
+3
470p 2973
1u
+3
2252
220K 3413
BSH 105
7256
3
7
14
4
33
34
35
36
4
5
6
7
8
9
7250-B
74LV14
19
2
20
21
22
23
24
25
26
27
28
29
3
30
31
32
7950 MPC17A50VM
1
10
11
12
13
14
15
16
17
18
BAV99
6950
2967
47p
100K 3273
3261 220K
2970
1u
+3
F256
3414 47K
100R
3432
+3
F252
56K
3411
2951 100n
F250
3264
100K
I251
3271 270K%
I250
2253
47K
10p
24 25 26
3 4 5 6 7 8 9
3403
1
10 11 12 13 14 15 16 17 18 19
2
20 21 22 23
2962
1403
3263
100K
470p
2256
F956
2268X
10n
10n
BC857BW
7254
3n3
2965
+3
2960
47u
7255
470p 2975
+3A
BC857BW
SB140
6256
+3
100n 2406X
3262
3416 220K
3253 100K
47K
F405
1K%
3266
F254
BC847BW
2K2
3400
7253
47K
3404
1n5
2964
3407
47K
ESD
2405X 100n
3401 100K
1951
PH-B
1
2
3
4
F407
F259
47K
3410
+3
2254
100n
F951
5250
10u
F950
3968
5K6
F953
5
6
7
8
4
3280
470R
2n2
2269
LM2904
7956-B
+3
DBB
MODE
+3
PREV
+A
SL
FO
RA
S7 S6 S5 S4 S3 S2
S1 S0 S12 C3 NEXT C2 C1 C0 ST
OP
PLA
Y
S11 S10 S9 S8
HP_ON
PR
OG
S0
S10
S11
S2 S3 S4
S5
S6
S7
S8
S9
TRACK-
DM
INNERSWITCH
PLAY_ON
ST
OP
FOCUS+
FOCUS-
TRACK+
+A
+3
+A
BEEP
SILD
+3
SDA
SCL
+3
HOLD
MUTE
PORES
+A
+3
PLAY
C0
C1
C2 C3
DBB
PREV PLA
Y_ON
S12
MODE
PROG
NEXT
DISPLAY
(connected via membrane assembly)
from/to 7807-P
AR
T2
LOBAT DETECTION
DOORSWITCH
to 7350-P
A
R
T
2
to 7350-P
A
R
T
2
to 7807-PART2
from 3813-PART2
from 7807-PART2
from 3809-PART2
from 3811-PART2
to 1800-P
A
R
T
2
to/from VAM2103/08
to VAM2103/08
to 7350-PART2
PART 1
X....component only forseen (not in use)
%....tolerance of component = 1%
-
S
slide motor
disc motor
+
+
M
-
POWER OFF
HP_ON
HP_ON
PO
WER OFF
1,2V
1,5V
1,5V
1,5V
2,5V
1,7V
1,7V
1,7V
1,6V
3,1V
3,1V
1,6V
0,2V
2,2V
5V
4,7V 8,2V
5,5V
1,4V
1,7V
1,4V
1,4V
0V
0V
0,6V
0V
4,6V
3,1V
3,1V
0,7V
1,2V
3,1V
1,5V
0,2V
1,1V
0,7V
1,4V
1,0V
0,7V
1,6V
0V
0,5V
0,3V
0,7V
3,1V
0V
0V
0V
0,3V
4,7V
0,4V
0V
4,7V
0V
4,5V
0,2V
4,7V
0V
0,6V
11
10
9
1,7V
3,1V
1,7V
2,5V
0V
9,1V
0,4V
0,2V
0,7V
1,2V
1,6V
1,7V
1,7V
3V
0V
3,1V
2,0V
3,1V
1,9V
1,7V
3,1V
1,7V
1,7V
3V
3,1V
2,7V
0,5V
1,7V
1,7V
1,7V
1,7V
1,7V
0,5V
12
1,7V
4,7V
3,1V
2,5V
3,1V
2,5V
3,0V
1,7V
3,1V
3V
2,9V
1,7V
1,7V
0,2V
0,6V
4,7V
1,9V
1V
4,5V
5
µ
s
1,8V
3,1V
3,1V
3V
0V
1,7V
4,6V
4,1V
4,7V
3,1V
t
3V
5
µ
s
t
3,1V
0,3V
2,1V
EVM V
DC voltages measured in
PLAY-mode, DBB off
Set supplied via mains adaptor