Philips ACT400 Service Manual page 21

MAIN BOARD - CIRCUIT DIAGRAM
1 2
A
B
C
D
+UP 3410
10R
E
1403
F
CSTCR
4.233MHz
MDL
MDDA
MDCL
G
+3.3V
H
TO SUPPLY PART
S E T , D C_I C C U, DB B _ O N # T M P , W A K E , C HG _ON } N, S L E E P , B A T T _ L E V E L _ A { U P _ RE
TO DSP PART
#...EXP510
* ...EXP310
&...EXP210
I
%....tolerance 1%
1 2
4 - 5
3 4 5
+2.6V
+2.6V
FMN
7400
TMP86PM29A
52 53 54 55 44 45 46 47 48 49 50 51 43 42 41 40 39 38 37 36 35 34 33
5
58
LCD DRIVER P7
57
56 V3
LCD VOLT
60
BOOSTER
59
CPU INT CONTR
SYSTEM CONTR
8
WATCHDOG
TIME GEN
4 18-BIT T/C 8-BIT T/C
TIMER
2
P2 10-BIT P6
3
A/D CONV
19 18 17
64
1 7 6 9 16 15 14 13 12 11 10
3412
470R
3413
470R
3414
470R
+UP
10K
+3.3V
3428
3 4 5
6 7 8
W95
1404
+UP
32 31 30 29 28 27 26 25 24 23 22 21
20
+2.6V
P5 P1
RAM ROM
UART/SIO
+2.6V
P3
63 62 61
3411
+UP
10R
+AVDD
18K %
F401
3405
Door
U18
6 7 8
4 - 5
9 10 11
W95
ESD
FMN
1407
+2.6V +2.6V +2.6V
3436
4K7
3437
2K2
DBB_STEP
3440X
Remote Control - Z20
TREBLE
+UP +UP
7404
BC857BW 3420
220K
3438
47K
+2.6V
1M
7405
BC847BW
3422X
DBB_ON#TMP
9 10 11
12 U18 H7 F426 B4
1403 F2 F427 B4
1404 B6 F428 B4
1407 B9 F429 B4
2246 A6 F430 B3
2400 G8 F431 B3
A
2401 D3 F432 B3
2402 H6 F433 B3
2406 H6
2409 A6
2410 A6
2411 A5
2412 A5
2413 H11
B
2415 B4
2416 B4
2417 A4
2418 D11
2419 D11
2420 B2
3401 G7
SIO_CLK
3404 G7
3405 G8
C
3406 F8
3410 D3
3411 F8
3412 F3
SIO_DAT
3413 G3
3414 G3
3416 G2
3417 G2
D
3418 G10
3419 G10
3420 G11
3421 G10
3422X H11
3423 C10
3424 E8
3425 C10
E
3426 G11
3427 H11
3428 H3
3429 A5
3430 A5
3431 D6
3434 A3
3435 C10
F 3436 C11
3437 C11
3438 G11
3440X F10
3441 A5
3442 B3
3443 G5
3444 H5
5400 D12
G
7400 D4
7404 F11
7405 G10
7406 C10
F401 G8
F410 B9
F411 B8
F412 B8
H
F413 B8
F414 B8
F415 B8
F416 B5
F417 B5
F418 B5
F419 B5
F420 B5
F421 B5
I
F422 B5
F423 B4
F424 B4
F425 B4
12