Mono Carrier: Video Processing (A4) - Philips 29PT5445/85 Service Manual

Circuit Diagrams and PWB Layouts
Mono Carrier: Video Processing
1 2
VIDEO PROCESSING
A4
3201
ITEM # Mono Stereo 2K7
2206 4n7 100p
A
3202
+8VD
100R
CVBS_TER_OUT 5201 2204
A8 4u7
56p
3204
1 3
B I O
1201
82R
TPS
4M5
G 2
2207 3207
TUNER_AGC
100n 390R
A3
7200
TDA93XX
VIF_1
C
1V9 23
A3
VIF_2
1V9 24
A3
2209
3208
470R 220n
4V 40
SY_CVBS_IN 2210
3210
3V4 42
A8
C_IN 2211 100R
220n
1V5 43
A8
D 1n
2212
1202 2V3 13
220n
0V2 32
REFO
0V 30
0V 41
18
0V
E
+8VD 8V 39
8V 14
5482
4V 19
+8V
5V 15
10u
0240
POR
1
F
A4
ITV_DATA_OUT
2
A4
ITV_DATA_IN
3
A4
ITV_CLOCK
4
A4
5
ITV_PORT
6
A4
TV_BUZZER
9240
EH-B
A4
Vaux
G
+5VS
OUT IN
GND
7495
LE50CZ
FOR ITV ONLY
FUNCTION 11NC : 8239_125_0755
3139 123 5596.5 CELL 11NC : 8239_125_0748
1 2
L03.1U AA
3 4
+3V3
3601
2V7
8V
2K2
3602
7202
2K2
BC847B
4606
3603
RES
3V4
6V7
2K2
3618
3V3
2K2
7201
BC847B
I211
2V7
2602
33p
2603
33p
27 37 38 31 29 28 35 44 60 55 59 58 57 10 11 2 3
VISION-IF
DEEMPHASIS
I2C-BUS
ALIGNMT-FREE
AUDIO SWITCH
PLL DEMOD
CPU VST PWM-DAC
AGC/AFC
VOL CONTR
I/O PORTS
VIDEO AMP
AGC CIRCUIT
VIDEO SWITCH
TELETEXT
NARROW BAND
VIDEO IDENT.
ROM/RAM
PLL
ACQUISITION
DEMODULATOR
VIDEO FILTERS
LUMA DELAY
BASE-BAND
PAL/SEC/NTSC
PEAKING
DECODER DELAY LINE
BLACK STRETCH
H/V SYNC SEP.
H-DRIVE
V-DRIVE +
2nd LOOP
H-OSC + PLL
GEOMETRY
H-SHIFT
17 34 16 33 25 26 22 21 36
3481
18K
2481
100p
3499
27K
F481
FAMILY BOARD 11NC : 3139_123_5595
MAIN CHASSIS 11 NC : 3139_123_5596
3 4
7. EN 19
5 6 7
+5V
F491
7496
BD135
7491
BC847B 8V7
3633
9V3
1K0
3632
13V4
8K2
3609
10K
5601
5u6
5602
5u6
5603
5u6
4 5 6 7 8 1 62 63 64 9 12 54 56 61
1/10 PAGE
MEMORY
TXT/OSD
DISPLAY
3619
51 3V7
CONTR/BRIGHTN
470R 3620
52 3V6
OSD/TXT INSERT
3621 470R
53 3V6
CCC
470R
49 3V1
WHITE-P ADJ
50 7V7
RGB/YUV INSERT
RGB/YUV MATRIX
EW GEOMETRY
SATURATION
YUV/RGB/MATRIX
F642
20 46 47 48 45
0.5V / div DC
20µs / div
3231 3232
560R 1K0
F481 F491 F492
0,5V / div DC 2V / div DC 2V / div DC
20µs / div 20µs / div 20µms / div
5 6 7
8 9 10
7494
F492 F493 F494 6V3
BC337-25
3496
5V7
12V
10R
5V
6492
BZX384-C5V6
3494
3V3
680R
7641
3V3
A1 4V A2
M24C04 8
1
VCC
7493 NC
L78L33
2
1N E1
1 3 6491
BAV70 3 5 3V3
IN OUT 3V3
GND NVM
E2 SDA
2
6
3V3
SCL
7
WC_
+3V3
VSS
3V3
4
2642
1n0
3642
100R
0217
1
2
3V4 3
6V3 3645
4
1K0
4661
5
7601
6V3
PDTA114ET
6
7
F603
F604
RED
1
GREEN
2
To 1300
BLUE
3
of CRT PANEL
4
BLK_IN
F605
5
6
7
3624 8
1K0 1622
FILAMENT
1203
+5V
F643
6624
BAS316
0,5V / div DC
20µs / div
3233
100R
F493 F494 F603 F604
2V / div DC 2V / div DC 1V / div DC 1V / div DC
20µs / div 20µs / div 20µs / div 20µs / div
8 9 10
0217 C10 3605 B5
0240 F1 3606 A5
1201 B1 3607 B5
A4
1202 D1 3608 B6
1203 E9 3609 B7
1621 B4 3618 A4
1622 E9 3619 D7
2201 A2 3620 D7
2202 A2 3621 D7
2203 A2 3624 E9
2204 B2 3631 A6
A
2205 B3 3632 B7
2206 B3 3633 A7
2207 B2 3634 C8
2208 C1 3641 A10
2209 C2 3642 C9
2210 D2 3643 B10
2211 D1 3644 A10
2212 D2 3645 C9
2231 F6 3646 F1
2232 F6 4491 A8
2233 F6 4602 A6
2481 F3 4603 A6
B
2482 F1 4604 A5
2483 F2 4606 A3
F642
2484 F2 4661 C9
2485 F2 5201 B2
SDA
2486 F3 5482 E1
A4
2487 F3 5601 B7
SCL
2488 F4 5602 B7
A4
2489 F5 5603 C7
2490 F5 6481 G2
F643
2491 E1 6491 B9
2492 B9 6492 A10
C
2493 A9 6624 E9
2494 B7 6625 D9
2495 G1 6626 D7
2496 G4 6627 D8
FILAMENT
2497 G4 6628 D8
2498 F2 6681 E8
A2
SANDCASTLE
2601 B4 7200 C2
A4 2602 B4 7201 B3
2603 B4 7202 A4
Frame_OUT
2604 A5 7491 A7
2605 C7 7493 B8
A4
2606 C7 7494 A9
D
2607 C7 7495 G1
2608 C8 7496 A7
2609 A6 7601 D8
2612 D8 7641 A9
I211 2615 E7 9201 A3
2616 E7 9240 G1
160VD
2641 B10 9286 A5
2642 B9 9410 G5
2643 F2 9604 A6
3201 A2
1V / div DC
3202 A2
1ms / div
3203 A3
E
3204 B2
3205 B2
A2 3206 B3
3207 B2
Frame_OUT
3208 C1
3209 C2
A2
3210 D1
Beam_Limit
3231 F7
A2 3232 F7
3233 F8
3410 G5
F
3479 B8
3480 F4
FBL_SC1_IN
3481 F2
A8
3482 G3
+8V
3483 F4
B_SC1_IN_U_IN
3484 F4
A8 3485 G4
G_SC1_IN_Y_IN
3486 G5
A8
R_SC1_IN_V_IN
3487 G5
3488 G3
A8
3489 G5
3490 G4
F605
G
3491 A7
3492 B7
3493 B7
3494 A8
3495 A9
1V / div DC
3496 A10
20µs / div
3497 A10
3498 G2
3499 G3
3601 A4
G_13933_004.eps
3602 A4
010506
3603 A4
3604 B5