Philips MRV640 Service Manual page 83

Circuit Diagrams and PWB Layouts
Analog Board: In/Out Video (IOV)
1 2 3
REAR IN 1
A F4102
AR
2
F4103
AL
3
F4104
CVBS
4
GND 5NESD
F4101
1
T-331520-10-10
1941-A
GND
B
GND
GND GND
5NESD
C
1943
SCL 1
SDA 2
5VSTBY
5VSTBY 3
GND 4 GND
F4305
GND 5 GND
INT 6
12VSTBY
12VSTBY 7
8
IPOR_DC
VGNSTBY
VGNSTBY 9
TEMP_SENSE 10 3474
TEMP_SENSE
FMN
1R
D
GND
2459
3429 I411
2.5V
47K
1u 0V
1.8V
E
GND GND
0.8V
1.2V
0V
2V
1942
GND
F4201 2421
YFIN
F 9
10u
GND
8
F4203
CFIN
7
NC
6
GND
5
F4206
CVBSFIN
4
F4207
AINFL
3
5SW 5SW
GND
G 2
F4209
AINFR
1
PH-B
AINFR
AINFL
CSW_SSW
MSW
5SW
H
delete for EPG
3406 2407
10p
10K
not used
2412
10p
not used
SDASW
F402
4400
for EPG only
4401
GND
F401
SCLSW
I
3405
10K
delete for EPG
5SW
1 2 3
UOut I463 UOut I463 VOut I462 VOut I462
A_YCVBS F4709 A_YCVBS F4709
A: DC, 500mV/Div A: DC, 500mV/Div A: DC, 500mV/Div A: DC, 500mV/Div
A: DC, 500mV/Div A: DC, 500mV/Div
10us/Div 10us/Div 10us/Div 10us/Div
10us/Div 10us/Div
DVDR615, MRV640
4 5 6
5VSTBY 5VSTBY
2467
5VSTBY
100n
-5.4V
1946
7421 I403
3442
1
BC857BW -5.4V 7422
GND
BC847BW
I402
1.5V
2 100R
V
1.1V
1.5V
3 7424
GND
BC857BW
4
U
5NSTBY 5NSTBY
5
GND
7423
6
Y 5NSTBY
PDTC124EU
7
GND
FMN
GND 5NSTBY
5.1V
5NESD
5SW
I413
GND GND
7411 I412
NJM2285M
1 16 2.5V
IN1B IN1A
2 15
CTL1 GND1
3 14 1.7V
GND
OUT1 IN2B
I417
4 13
GND2 V+
3445
2419
5 12 0V
OUT2 CTL2
I415
150R 1u
6 11
1.5V
OUT3 IN2A
7 10 GND 5VSTBY
2427
CTL3 GND3
5VSTBY
8 9
IN3A IN3B 100n
GND
1.6V
5SW
7405
2415 BC857BW
3458
1u
10K
5SW
GND
3433
GND
3432 100R
100R
F422
from/to uP Board
4 5 6
D_Y F4714 D_Y F4714 D_C F4716 D_C F4716
D_CVBS F4712 D_CVBS F4712 D_VR F4718 D_VR F4718
A: DC, 200mV/Div A: DC, 200mV/Div
A: DC, 200mV/Div A: DC, 200mV/Div A: DC, 200mV/Div A: DC, 200mV/Div
A: DC, 200mV/Div A: DC, 200mV/Div
10us/Div 10us/Div 10us/Div 10us/Div 10us/Div 10us/Div
10us/Div 10us/Div
7. EN 83
7 8 9
REAR OUT
5VSTBY 5VSTBY
5VSTBY
7429
7425
BC847BW BC847BW
I420
7427
I410 3443 3444
-5.4V
BC857BW
100R 100R
I419
-5.4V
-5.4V
1.1V -5.4V 1.1V
GND
1.5V
5NSTBY
7426
7428
PDTC124EU PDTC124EU
5NSTBY
5NSTBY
2469
5NSTBY
5NESD
100n
5NSTBY
5403 I457 I456 5406
10u 10u
GND GND GND GND
I414
5402
10u
7408
36 8 20 24 30 32 STV6618
GND
GND GND
I462 2441
31 9 I483
3V
1.5V
R|PR|COUT-TV R|PR|CIN-ENC
I461
1.7V 29 10 I482 1u
2.6V
G|YOUT-TV G|YIN-ENC
2442
I463 I481 3V
1.5V 27 11
B|PBOUT-TV B|PBIN-ENC
I480 1u
34 4 2.1V
FBOUT-TV CVBSIN-ENC
2439
33 6 I479 3V
Y|CVBSOUT-TV CIN-ENC
2408 I478
40 7 100n 2.5V
CIN-TV YIN-ENC
I466
not used
100n
41
2433
Y|CVBSIN-TV I477
5
DECV
2.1V
47n
4V
2.5V 1
Y|CVBSIN-TUN
21 I476 1.8V
2423
Y|CVBSOUT-REC
43
CIN-TUN
I450
100n 1.6V
23
not used COUT-AUX
28 25 I475
1.4V
C-GATE Y|CVBSOUT-AUX
0V
42
PSCAN_KILL
DIGOUT1
not used
2429
0V CSW_SSW 44 17
DIGOUT2 R|PR|CIN-AUX
2430
2 15 100n
0V MSW
DIGOUT3 G|YIN-AUX
I468 2431
14 13 100n
0V
DIGOUT4 B|PBIN-AUX
I467 100n
16 35
0V
DIGOUT5 FBIN-AUX
I471 2416 3452
18 19 GND
DIGOUT6 Y|CVBSIN-AUX
I469 2.1V 1u 150R
38
5V
SDA
I470
37
5V
SCL
22 12 3 26 39
GND GND GND GND GND
GND GND
GND GND GND GND GND GND GND
from / to Digital Board
7 8 9
Y I419 Y I419
D_YG F4720 D_YG F4720 D_UB F4722 D_UB F4722
A: DC, 500mV/Div A: DC, 500mV/Div
A: DC, 200mV/Div A: DC, 200mV/Div A: DC, 200mV/Div A: DC, 200mV/Div
10us/Div 10us/Div 10us/Div 10us/Div
10us/Div 10us/Div
10 11 12 13
REAR IN
5NSTBY VGNSTBY
F499
3454
5NESD
1K
5NSTBY
GND
GND
5VSTBY
GND GND GND
3416
I454
4K7
5V
3428 0V
7430
BC847BW
10K
5NESD
GND
3481
82K
5VSTBY
GND
5NESD
2418
5NESD
GND
1u
5VSTBY
2466
2402
1u
100n
I449
2420
1.6V
3449
2.2V 100n
150R BC857BW
I484
7406
5VSTBY
GND
7409
BC847BW
3446 1.4V
GND
150R
3435
0.7V
75R
GND
5NSTBY
5NESD
8SW
I490
2465
3476
82K
1u
7432
BC857BW
I488
GND GND GND
7V
1.9V
2437
1.6V
7431
1u
I486 BC847BW
GND
GND GND GND
GND GND
10 11 12 13
U I405 U I405 V I402 V I402
A: DC, 500mV/Div A: DC, 500mV/Div
A: DC, 500mV/Div A: DC, 500mV/Div
10us/Div 10us/Div 10us/Div 10us/Div
14
1941-B A11 7428 B8
1942 F1 7429 A9
1943 C1 7430 B13
1944-A I14 7431 I13
1944-B A9 7432 H13
1945-1 I2 F401 I2
1946 A4 F402 I2
5VSTBY 5SW 12VSTBY
1947 I8 F403 I8
1948 C14 F404 I8
1949 F14 F405 I9
2401 B1 F406 C13
2402 E13 F407 F13
2403 D4 F4101 B1
2404 D3 F4102 A1
2405 D7 F4103 A1
2406 B14 F4104 A1
A
2407 H2 F4109 A11
2408 E7 F4110 A11
VGNSTBY 5VSTBY 5SW 12VSTBY 2409 D9 F4111 A11
2410 C4 F4201 F1
2411 D7 F4203 F1
2412 H2 F4206 G1
2413 C8 F4207 G1
IPFAIL
2414 C7 F4209 G1
2415 F4 F422 I5
2416 G9 F4305 C1
DAC_MUTE
2417 D5 F4402 I14
2418 E10 F4403 I14
2419 E6 F4404 H14
5VSTBY
2420 E13 F4408 A9
2421 F1 F4409 A10
2422 E14 F4410 A10
2423 F7 F4411 A10
2424 B3 F4504 I2
2425 A3 F4505 I3
2426 D13 F4506 I3
I453 B
2427 F6 F4511 I4
BC857BW
2428 F1 F4518 I5
7404 I428 2429 F9 F4523 I5
5V
2430 F9 F4525 I6
AKILL
2431 G9 F4707 I9
-4.5V
2433 E9 F4709 I9
2434 C8 F4712 I10
2435 C8 F4714 I10
2437 I12 F4716 I10
2438 G10 F4718 I11
2439 E9 F4720 I11
2441 D10 F4721 I11
GND GND
5NSTBY 2442 E10 F4722 I11
2446 I8 F4803 C13
2449 F1 F4804 D13
REAR IN
2459 E3 F4903 F13
2464 A12 F4904 F13
C 2465 H13 F499 A12
S-CONN
2466 E10 I401 B5
2467 A5 I402 A4
GND
2469 B9 I403 A5
1948
2470 H11 I404 A6
TCS79
2471 H12 I405 A6
1
3401 A11 I410 A7
5 3402 A11 I411 E3
F4803 3403 A11 I412 D4
3
Y
3404 B2 I413 D4
7
3405 I1 I414 D7
F4804
4 C 3406 H1 I415 E4
6
3407 F4 I416 F5
2 3408 E5 I417 E4
3409 C6 I418 A8
3410 C6 I419 A8
3411 G3 I420 A8
GND GND
3412 E2 I421 A9
D
3413 C6 I428 B14
3414 D1 I449 E13
3415 B12 I450 F9
3416 B13 I451 E13
3418 B14 I453 B13
3419 B14 I454 B13
3420 F12 I456 C8
3421 C13 I457 C7
3422 D12 I461 D7
3423 D13 I462 D7
3425 E13 I463 E7
3426 I1 I466 E7
3427 H1 I467 G7
3428 B12 I468 F7
3429 E1 I469 G7
3430 F6 I470 G7
3431 D12 I471 G9
E
3432 G6 I475 F9
3433 G6 I476 F9
3434 E14 I477 E9
I451 3435 F13 I478 E9
3434
WSRO 3436 F13 I479 E9
3437 G1 I480 E9
4K7 3438 G1 I481 E9
3439 F5 I482 E9
3441 H13 I483 D9
3442 A5 I484 F12
REAR OUT
3443 A7 I486 I12
3444 A9 I488 H13
3445 E6 I489 H13
S-CONN
GND
3446 F12 I490 H12
3447 G13
GND
3448 G12
1949
3449 E12
TCS79
F 3450 E2
1 3451 E2
5 3452 G10
F4903
3453 A5
3 Y
3454 A13
7
3455 G4
F4904 4
C 3457 E2
6 3458 F6
3460 A6
2
3461 A6
3462 E2
3463 A7
GND GND
3464 A7
3465 A8
3466 I13
3467 A8
3468 A9
3469 A9
5NESD G
3470 C11
3471 C11
3472 D4
3474 D1
5NESD
3475 H12
3476 H12
3477 H13
3478 I13
3479 I13
3480 E1
3481 C13
3482 C11
4400 I1
4401 I1
4402 B13
4403 B13
5401 C4
H
5402 D7
REAR OUT 1
5403 C7
5406 C8
1
6401 B2
6402 A10
6403 A10
3441 CVBS 6404 A10
F4404 4
6405 A3
6406 B3
75R
6411 D12
F4403
3 6412 D13
AL
6415 B11
6416 B11
6417 B11
F4402
2
6425 G13
AR
6426 G14
6427 H14
1944-A
6428 H12
6430 B12
T-331520-10-10
I
6431 B13
7404 B14
7405 F6
7406 F13
7408 D9
7409 F13
7411 D3
7419 I1
7420 H1
7421 A5
TR 18006_001
7422 A6
7423 B5
7424 A6
110304
7425 A7
7426 B7
14