Sharp VL-WD250S Service Manual page 23

[TEST POINT]
(Wiring board diagram: Main Side B)
TL604
EE level check
Frequency character check
Super-directional microphone check
TL605
EE level check
Frequency character check
Super-directional microphone check
TL8847(COM)
VF COM-DC
TL8845(VR)
VF sub-contrast R/B
VF sub-brightness R/B
TL8846(VG)
VF COM-DC
VF brightness
VF contrast
VFγ1
VF sub-contrast R/B
VF sub-brightness R/B
C204
R222
C24
TL8844(VB)
VF sub-contrast R/B
VF sub-brightness R/B
TL6604(GND)
EE level check
Frequency character check
SC5002
R6633
R6635
R6636
Q6603
C6634
C6639
R6637
R6644
C6640
C6632
R621
Q608
R609
Q602
R639
R651
R656 C646
C651
C637
R640
C642
TL7800(AFC) R641
VCO free-run C638
C639
C605
R670
TL8800(VF-Y)
C640
VF VCO
R4461
TL8849(VF-HD)
VF VCO
R4464
R4469
Q4461
R4460
R4468 C4464
R4467
L101 C641
Q4432
C220
C218
R203
R204
R218
R207
R215
R1431
R217
R213
R214
R216 R1433
R212 R1434
R202
R211
C203
C211
C213
L1402 Q1431
C1402
R1401
R5003 R5004
FB35
TL5002
PCO D/A-C
TL6602(TELE-MIC)
Super-directional microphone check
TL6607(INT MIC R)
EE level check
Frequency character check
P6602
P6601
C6621
R6628
C6628
C6604
R6602 L2800
C2800
L2801
C2801
C6611
R2804
R6615 R6616 R6619
R2808
R6617
R2807
C6618 R6621 R6620 R6624
C6619 C6617 R6622 C6616
R6658 C6615
R6657 R6623
C6641
R6627
R6645
R6651
C6643
C6647
C3473
Q6604 L6601
R3438
C616 R603
R3446
R617 C3432
Q605
IC3402
R618 R3488
R616 R3445
R3482 R3480 R3491
R3426 R3427
R3425
C3444 R3481 R3490
R3432 R3486
C3431 C3434 C3471
C3433
C3426
R3421
C3424
R3473 C3477
R3419
Q3404
R3454
R3472 C3476
R3478 R3479
R3420
R3470
R3416 C3418
FL3403
R654 R3417 C3416
C3415
R636
R3415
R638 R3404 R3442
C3406
Q3401 C3465
R631
R3441
C3403
C3405
C3401
C625
C3443
R3401
Q3406
C3442
R4466
R7847
D4452
R7858 R4403
L7801 R7857
C7837
L4451
C4403
R7856
C4432 C7842
C7815 R7827 C7813
R7860
R7859
R4451
D4451
C4427
R4473
Q4471
R4477
C4420
Q4472
C4435
R4424 R4425 C4436
R4428 C4405
C4440
R4486 R4488
R4437 R4442
R4443 C4402
C4441
R4422
R4418 R4402
C4407 R4421
R4426
R4427 R4430
R4499 R4429
IC4472
R4419 C4409
R4487 C1405
R4485
C4408 R4417
C4485
C1413
Q1434 C1408
C1432
R1432
C1436
R1454
C1404
R1451
Q1432
C1704
C1409
C1416
IC1401
R1415
C1433 C1418
C1440
C1703
C1417
R1435
R1437 R1421
R1461
C1435
R1436 R1462
D1403
Q1405
R1729
R1730
R1705
R1706
C1412 R1731
R1732
R1413
R5007
SC5001
C1702
C1701
C1706
C1705
TL5004
PCO D/A-Y
23
TL6605(INT MIC L)
EE level check
Frequency character check
TL2801(G OUT)
R5801
R5800 DAC full-scale
R2803
R2806
TL2800(R OUT)
R2805
DAC full-scale
C1801
TL2802(B OUT)
C2804
DAC full-scale
R1802
C2803 C1810 R1803
D1800
C2802
R3447
TL1801(C OUT)
R3457
C3459
COMMON PULSE
TL1800
R3436
R3435
C3430 R3463
COMMON PULSE
C3429 R3462 R3437
C3454
C3423
FL3402
C3419
C3417
C3420 C3466 R3412
C3414 R3410 R3411
R3406
R3496
R3489
Q3405
R3499
TL4405(B-Y OUT)
DAC_B-Y
TL4403(Y OUT)
DAC_Y
TL7823(GND)
DAC_Y, DAC_R-Y, DAC_B-Y
R1725
R1726
TL4404(R-Y OUT)
Q1701
DAC_R-Y
C1724
R1715
C1726
C1727
R1722
C1715
C1713
C1716
C1719
L1701
VL-WD250S/H/E
VL-WD450S/H/E