4
LC-26GD4U
Precautions for using lead-free solder
1 Employing lead-free solder
"PWBs" of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the
PWBs and service manuals. The alphabetical character following LF shows the type of lead-free solder.
Example:
2 Using lead-free wire solder
When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional
lead wire solder may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40°C, we recommend
you to use a dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit,
contact our service station or service branch in your area.
3 Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is about 220°C which is higher than the conventional lead
solder by 40°C, and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the
PWB for extended period of time. However, Since the land may be peeled off or the maximum heat-resistance
temperature of parts may be exceeded, remove the bit from the PWB as soon as you confirm the steady soldering
condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corroded. Make sure to turn on
and off the power of the bit as required.
If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after
every use of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.
Be careful when replacing parts with polarity indication on the PWB silk.
Indicates lead-free solder of tin, silver and copper.
Lead-free wire solder for servicing
Part No,
★
Description
Code
ZHNDAi123250E
J
φ
0.3mm
250g(1roll)
BL
ZHNDAi126500E
J
φ
0.6mm
500g(1roll)
BK
ZHNDAi12801KE
J
φ
1.0mm
1kg(1roll)
BM
L
F a
Содержание Aquos LC 26GD4U
Страница 52: ...52 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GD4U OVERALL WIRING DIAGRAM CHASSIS LAYOUT ...
Страница 53: ...53 17 16 19 18 15 14 13 12 11 10 LC 26GD4U ...
Страница 54: ...54 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GD4U SYSTEM BLOCK DIAGRAM ...
Страница 55: ...55 17 16 19 18 15 14 13 12 11 10 LC 26GD4U ...
Страница 56: ...56 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GD4U MAIN BLOCK DIAGRAM ...
Страница 57: ...57 17 16 19 18 15 14 13 12 11 10 LC 26GD4U ...
Страница 58: ...58 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GD4U AV BLOCK DIAGRAM ...
Страница 59: ...59 17 16 19 18 15 14 13 12 11 10 LC 26GD4U ...
Страница 60: ...60 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GD4U DISPLAY BLOCK DIAGRAM ...
Страница 61: ...61 17 16 19 18 15 14 13 12 11 10 LC 26GD4U ...
Страница 62: ...62 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GD4U POWER BLOCK DIAGRAM ...
Страница 63: ...63 17 16 19 18 15 14 13 12 11 10 LC 26GD4U ...
Страница 64: ...64 LC 26GD4U 6 5 4 3 2 1 A B C D E F G H DVI Unit Component Side PRINTED WIRING BOARD ASSEMBLIES ...
Страница 70: ...70 LC 26GD4U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H DIGITAL Unit Side A ...
Страница 71: ...71 LC 26GD4U 17 16 19 18 15 14 13 12 11 10 ...
Страница 74: ...74 LC 26GD4U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H DIGITAL Unit Side B ...
Страница 75: ...75 LC 26GD4U 17 16 19 18 15 14 13 12 11 10 ...
Страница 80: ...80 LC 26GD4U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H MAIN Unit Side A ...
Страница 81: ...81 LC 26GD4U 17 16 19 18 15 14 13 12 11 10 ...
Страница 84: ...84 LC 26GD4U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H MAIN Unit Side B ...
Страница 85: ...85 LC 26GD4U 17 16 19 18 15 14 13 12 11 10 ...
Страница 88: ...88 LC 26GD4U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H AV Unit Side A ...
Страница 89: ...89 LC 26GD4U 17 16 19 18 15 14 13 12 11 10 ...
Страница 96: ...96 LC 26GD4U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H POWER Unit Side A ...
Страница 97: ...97 LC 26GD4U 17 16 19 18 15 14 13 12 11 10 ...
Страница 98: ...98 LC 26GD4U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H POWER Unit Side B ...
Страница 99: ...99 LC 26GD4U 17 16 19 18 15 14 13 12 11 10 ...
Страница 100: ...100 LC 26GD4U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H INVERTER Unit Component Side INVERTER GND Unit Component Side ...
Страница 101: ...101 LC 26GD4U 17 16 19 18 15 14 13 12 11 10 ...
Страница 150: ...ËAV Unit 1 5 ...
Страница 151: ...ËAV Unit 2 5 ...
Страница 152: ...ËAV Unit 3 5 ...
Страница 153: ...ËAV Unit 4 5 ...
Страница 154: ...ËAV Unit 5 5 ...
Страница 155: ...ËKEY Unit ...
Страница 156: ...ËR C LED Unit ...
Страница 157: ...ËEXT SP TERMINAL Unit ...
Страница 158: ...ËDVI Unit 1 2 ...
Страница 159: ...ËDVI Unit 2 2 ...
Страница 160: ...ËLCD CONTROL Unit 1 8 ...
Страница 161: ...ËLCD CONTROL Unit 2 8 ...
Страница 162: ...ËLCD CONTROL Unit 3 8 ...
Страница 163: ...ËLCD CONTROL Unit 4 8 ...
Страница 164: ...ËLCD CONTROL Unit 5 8 ...
Страница 165: ...ËLCD CONTROL Unit 6 8 ...
Страница 166: ...ËLCD CONTROL Unit 7 8 ...
Страница 167: ...ËLCD CONTROL Unit 8 8 ...
Страница 168: ...ËDIGITAL Unit 1 20 ...
Страница 169: ...ËDIGITAL Unit 2 20 ...
Страница 170: ...ËDIGITAL Unit 3 20 ...
Страница 171: ...ËDIGITAL Unit 4 20 ...
Страница 172: ...ËDIGITAL Unit 5 20 ...
Страница 173: ...ËDIGITAL Unit 6 20 ...
Страница 174: ...ËDIGITAL Unit 7 20 ...
Страница 175: ...ËDIGITAL Unit 8 20 ...
Страница 176: ...ËDIGITAL Unit 9 20 ...
Страница 177: ...ËDIGITAL Unit 10 20 ...
Страница 178: ...ËDIGITAL Unit 11 20 ...
Страница 179: ...ËDIGITAL Unit 12 20 ...
Страница 180: ...ËDIGITAL Unit 13 20 ...
Страница 181: ...ËDIGITAL Unit 14 20 ...
Страница 182: ...ËDIGITAL Unit 15 20 ...
Страница 183: ...ËDIGITAL Unit 16 20 ...
Страница 184: ...ËDIGITAL Unit 17 20 ...
Страница 185: ...ËDIGITAL Unit 18 20 ...
Страница 186: ...ËDIGITAL Unit 19 20 ...
Страница 187: ...ËDIGITAL Unit 20 20 ...
Страница 188: ...ËPC CARD Unit 1 4 ...
Страница 189: ...ËPC CARD Unit 2 4 ...
Страница 190: ...ËPC CARD Unit 3 4 ...
Страница 191: ...ËPC CARD Unit 4 4 ...
Страница 192: ...ËMAIN Unit 1 13 ...
Страница 193: ...ËMAIN Unit 2 13 ...
Страница 194: ...ËMAIN Unit 3 13 ...
Страница 195: ...ËMAIN Unit 4 13 ...
Страница 196: ...ËMAIN Unit 5 13 ...
Страница 197: ...ËMAIN Unit 6 13 ...
Страница 198: ...ËMAIN Unit 7 13 ...
Страница 199: ...ËMAIN Unit 8 13 ...
Страница 200: ...ËMAIN Unit 9 13 ...
Страница 201: ...ËMAIN Unit 10 13 ...
Страница 202: ...ËMAIN Unit 11 13 ...
Страница 203: ...ËMAIN Unit 12 13 ...
Страница 204: ...ËMAIN Unit 13 13 ...
Страница 205: ...ËPOWER Unit ...
Страница 206: ...ËINVERTER Unit ...
Страница 207: ...ËINVERTER GROUND Unit ...