Panasonic TY-FB8TA Service Manual
Specifications
A
A
A
A
ORDER NO. ITD0604015CE
U/V Tuner Board with Hospitality Port
TY-FB8TA
Receiving System
Receiving Channels Regular TV
VHF BAND UHF BAND CATV
2-12 (PAL/SECAM B, K1) 21-69 (PAL G, H, I/SECAM G, K, K1) S1-S20 (OSCAR)
0-12 (PAL B AUST.) 28-69 (PAL B AUST.) 1-125 (U.S.A. CATV)
1-9 (PAL B N.Z) 13-57 (PAL D, K) C13-C49 (JAPAN)
1-12 (PAL/SECAM D) 13-62 (NTSC M Japan) S21-S41 (HYPER)
1-12 (NTSC M Japan) 14-69 (NTSC M U.S.A.) Z1-Z37 (CHINA)
2-13 (NTSC M U.S.A.) 5A, 9A (AUST.)
OUTPUT
UDIO OUT
VIDEO OUT VIDEO (BNC Type) 1.0 Vp-p (75 W)
Others Ir System terminal × 1
INPUT
UDIO IN
VIDEO IN VIDEO (BNC Type) 1.0 Vp-p (75 W)
ANT-IN UHF / VHF
Mass (Weight) 0.55 kg
UDIO L-R (RCA Pin Type × 2) 0.5 Vrms
UDIO L-R (RCA Pin Type × 2) 0.5 Vrms
S-VIDEO (MINI DIN 4-pin) Y:1.0 Vp-p (75 W) C:0.286 Vp-p (75 W)
© 2004 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
TY-FB8TA
CONTENTS
Page Page
1 Safety Precautions 3
1.1. General Guidelines
1.2. Touch-Current Check
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
3 About lead free solder (PbF)
4 Installation
5 Antenna connection
6 Connections of external equipment
7 Circuit Board Layout
7.1. HCA-Board
8 Block and Schematic Diagram
8.1. Schematic Diagram Notes
11
11
3
3
4
5
6
7
8
9
9
8.2. HCA-Board Block Diagram
8.3. HCA-Board (1 of 6) Schematic Diagram
8.4. HCA-Board (2 of 6) Schematic Diagram
8.5. HCA-Board (3 of 6) Schematic Diagram
8.6. HCA-Board (4 of 6) Schematic Diagram
8.7. HCA-Board (5 of 6) Schematic Diagram
8.8. HCA-Board (6 of 6) Schematic Diagram
9 Replacement Parts List
9.1. Replacement Parts List Notes
9.2. Electrical Replacement Parts List
9.3. Mechanical Replacement Parts List
9.4. Parts Location (1)
9.5. Parts Location (2)
12
13
14
15
16
17
18
19
19
20
26
27
28
2
TY-FB8TA
1 Safety Precautions
1.1. General Guidelines
1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
1.2. Touch-Current Check
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a measuring network for touch currents between each exposed metallic part on the set and a good earth ground such
as a water pipe, as shown in Figure 1.
3. Use Leakage Current Tester (Simpson 228 or equivalent) to measure the potential across the measuring network.
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reserve the AC plug in the AC outlet and repeat each of the above measure.
6. The potential at any point (TOUGH CURRENT) expressed as voltage U
For a. c.: U
For d. c.: U
= 35 V (peak) and U2= 0.35 V (peak);
1
= 1.0 V,
1
Note:
The limit value of U
= 0.35 V (peak) for a. c. and U1= 1.0 V for d. c. correspond to the values 0.7 mA (peak) a. c. and 2.0
2
mA d. c.
The limit value U
= 35 V (peak) for a. c. correspond to the value 70 mA (peak) a. c. for frequencies greater than 100 kHz.
1
7. In case a measurement is out of the limits specified, there is a possibility of a shock hazard, and the equipment should be
repaired and rechecked before it is returned to the customer.
and U2, does not exceed the following values:
1
Figure 1
3
TY-FB8TA
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and
semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage
caused by electro static discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as alminum
foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static (ESD protected)" can
generate electrical charge sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, alminum foil or comparable
conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.
Caution
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise hamless motion such as the brushing
together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to
damage an ES device).
4
TY-FB8TA
3 About lead free solder (PbF)
Note: Lead is listed as (Pb) in the periodic table of elements.
In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder.
The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu).
That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.
This model uses Pb Free solder in it’s manufacture due to environmental conservation issues. For service and repair work, we’d
suggest the use of Pb free solder as well, although Pb solder may be used.
PCBs manufactured using lead free solder will have the PbF within a leaf Symbol
Caution
· Pb free solder has a higher melting point than standard solder. Typically the melting point is 50 ~ 70 °F (30~40°C) higher.
Please use a high temperature soldering iron and set it to 700 ± 20 °F (370 ± 10 °C).
· Pb free solder will tend to splash when heated too high (about 1100 °F or 600 °C).
If you must use Pb solder, please completely remove all of the Pb free solder on the pins or solder area before applying Pb
solder. If this is not practical, be sure to heat the Pb free solder until it melts, before applying Pb solder.
· After applying PbF solder to double layered boards, please check the component side for excess solder which may flow onto
the opposite side. (see figure below)
Suggested Pb free solder
There are several kinds of Pb free solder available for purchase. This product uses Sn+Ag+Cu (tin, silver, copper) solder.
However, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) solder can also be used.
stamped on the back of PCB.
5
TY-FB8TA
4 Installation
6
5 Antenna connection
TY-FB8TA
7
TY-FB8TA
6 Connections of external equipment
8
7 Circuit Board Layout
7.1. HCA-Board
6
TY-FB8TA
HCA-BOARD (FOIL SIDE)
TXNHCA10YJT
Parts Location
HCA-BOARD
IC
5
A2
C699
C698
C525
C666
C663
C664
1
L346
7
TNPA3688
C655
C661
L343
C685
C662
C688
C651
C656
C657
3
2
4
31
IC301
30
C481
C484
C487
1
120
8
R687
R693
R695
R696
C689
R520
R682
C690
Q336
1
IC328
R310
JK301
Y
29
28
1
JS317
24
5
R758
R757
C669
R519
R509
IC318
R753
1
R485
R493
R657
7
C727
C667
C716
C523
1
1
IC337
4
C717
4
C
VD
R609
TP304
R522
R749
5
X303
5
IC336
IC326
A1
B1
C444
B2
C447
R453
R446
R448
C668
R429
ZA305
C450
C455
R459
R470
R462
Q323
4
8
4
14
IC322
1
R754
C728
C723
IC325
3
2
R748
1
ZA307
C729
C724
Q320
C463
R750
24
13
IC324
12
1
61
8
3
7
8
5
R755
R712
C731
C726
6
C720
C721
R752
JK302
R
SLOT
R437
R443
L324
C441
C437
R747
C434
C707
5
4
1
3
60
90
91
C490
5
R498
7
6
R703
25
C737
48
R745
C704
R744
C703
L
123
56
1
1
HCA
H1
1
TP307
HD
TP306
R637
R641
R638
C641
C636
C635
R644
C638
C637
Q339
C526
C639
R646
R315
R494
C640
R588
C642
R497
R653
R456
R455
R454
R434
C499
Q338
R652
R523
R495
JS315
C633
R647
11
JK300
R746
R686
R496
JS316
C522
R513
R636
R514
8
R645
C524
R467
14
8
C634
L353
C722
VIDEO IN MONITOR OUT
R521
R606
R650
R426
R591
A39
A40
C512
JS307
B39
C511
C601
B40
R583
C543
C542
R530
C551
C559
3
1
5
4
4
R613
R614
R612
R576
C597
R620
C596
C606
4
1
5
R403
IC338
10
20
R529
C456
C438
C431
C402
R621
C619
C618
3
C617
C621
R624
C616
R615
L342
C622
C620
C611
1
C498
R505
IC310
R506
C478
R475
C477
C516
R481
C480
C474
R471
C514
C513
C476
C567
R622
C614
C612
R473
C472
C615
C470
R634
R627
C613
2
C568
R578
C602
C475
R480
R479
R472
R502
R501
C479
R633
C519
C493
C473
R562
C598
C603
C541
L332
5
R503
R
C566
R580
L328
R561
R587
C489
C496
C676
R579
IC313
C595
C468
C565
L339
C492
C495
C604
C600
R680
C594
C626
JS308
C491
R500
C465
L337
C466
R678
Q324
C605
R581
R504
C494
R465
JK304
C608
R586
R582
C488
L336
IC308
C607
Q325
R584
R499
JS313
R685
SEE REVERSE
C719
C718
R478
R727
R676
L340
R675
R585
L321
R577
L325
L360
R440
R439
R438
R420
C558
C557
JS306
C531
C550
C554
C535
C518
C545
C546
C534
C553
C537
C549
JS312
C529
C599
JS314
D313
D312
R463
C458
C460
C673
R679
R598
Q326
R599
R684
L
FOR ORDER
R477
8
R544
R551
R739
R726
R740
CR NO.3
R671
R672
R674
R673
R516R517
R543
R558
4
5
8
R424
IC307
C429
L320
C427
R431
C428
L319
R449
R410
R408
4
C544
C552
C556
C548
C536
C515
C517
D311
R402
C672
5
1
13
R430
8
NO.
PbF
ZA304
R510
C764
JK305
X301
1
IC333
C766
4
C773
1
5
8
4
1
JS301
C356
C331
R370
Q310
Q308
Q304
C501
R491
3
IC319
5
8
C426
4
R428
2
7
R339
R333
IC340
R743
C774
C401
IC303
Q305
C321
R515
R365
C404
C357
C350
R367
C342
C341
L307
R358
R355
R332
C767
R765
C757
R394
C386
R395
C387
R398
C389
C340
R357
R356
R742
C713
L356
R764
R389
R387
R409
Q303
R329
R433
R466
C771
C358
R341
R330
1
C770
R724
Q329
R766
R767
IC334
JS300
R474
C482
C483
C485
C486
C497
C709
C754
C772
C756
R763
R401
C388
R388
R386
D307
R492
C359
R406
4
4
D309
C397
58
C761
C430
1
R378
C399
R345
R677
R512
R511
TP305
IC331
R770
Q331
C759
FL310
Q317
R769
R771
C760
R377
C362
Q311
R372
R382
JS305
JS304
C670
C776
R772
R373
D310
Q330
R768
5
R608
8
C561
IC311
C562
C563
R605
R603
R602
R604
C347
C744
R760
Q314
Q332
Q333
R374
Q312
R371
R383
FL309
C346
Q309
R361
R532
R507
C753
R366
C343
R546
C533
R762
1
5
L354
Q313
R375
C328
R376
R483
R379
C360
C361
D308
R381
R484
Q335
R490
C442
C443
D301
R311
R312
R557
R547
C564
R552
R554
C582
R556
R545
JS310
C586
C589
C301
R555
R549
C584
R560
C575
Q302
L301
L300
R569
C583
C573
FL300
FL301
R550
C560
C591
C555
R486
FL306
R575
R568
C585
L334
C510
C572
R489
Q334
C338
R328
R363
TU300
R559
R553
R548
JS311
1
C532
C530
C302
C577
C574
R482
C576
C547
R349
L304
JS309
C580
C581
C539
C509
C508
C304
R300
C300
IC330
VIDEOOUT
SIFOUT
AUDIOOUT
C305
RFAGC
C502
C579
IC312
C752
C743
R761
R759
L331
C578
BTL
AFT
SDA
SCL
R527
BT
C505
R528
L302
C326
C329
C327
ZA306
C336
C330
2
34
Q307
R350
R346
IC329
R344
C325
R334
R348
C323
R335
R347
C324
C320
R343
Q306
R342
1
5
1
SW2
SW1
BM
JK303
IC3312 G-1
IC3313 D-2
IC3318 B-4
IC3319 E-4
IC3322 A-3
IC3324 A-4
IC3325 A-2
IC3326 C-2
IC3328 B-2
IC3329 G-4
IC3330 G-4
IC3331 F-4
IC3333 E-4
IC3334 F-3
IC3336 C-2
IC3337 B-3
IC3338 C-2
IC3340 E-1
TRANSISTOR
Q3302 F-3
Q3303 F-2
Q3304 E-2
Q3305 F-2
Q3306 G-3
Q3307 G-3
Q3308 E-2
Q3309 F-3
Q3310 E-2
Q3311 F-3
Q3312 F-3
Q3313 F-4
Q3314 F-4
Q3317 F-2
Q3320 A-4
Q3323 A-4
Q3324 D-4
Q3325 D-4
Q3326 D-2
Q3329 F-1
Q3330 F-4
Q3331 F-3
Q3332 F-4
Q3333 F-3
Q3334 F-3
Q3335 F-3
Q3336 B-2
Q3338 C-3
Q3339 C-2
TP
TP3304 C-3
TP3305 F-1
TP3306 C-3
TP3307 C-4
TY-FB8TA HCA-BOARD TXNHCA10YJT TY-FB8TA HCA-BOARD TXNHCA10YJT
A
C E GIBDFH
9
Loading...