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4
TU-GA1U-S
TU-GAD
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
Summary of Contents for TU-GA1U-S
Page 41: ...41 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD CHASSIS LAYOUT FRONT AV SUB DVI TMDS ...
Page 42: ...42 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD CHASSIS LAYOUT PC CARD MAIN AV ...
Page 43: ...43 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD CPU AUDIO I F ...
Page 55: ...55 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD SCHEMATIC DIAGRAM Ë FRONT Unit ...
Page 56: ...56 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë AV SUB Unit 1 2 ...
Page 57: ...57 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 58: ...58 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë AV SUB Unit 2 2 ...
Page 59: ...59 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 60: ...60 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë TMDS Unit ...
Page 61: ...61 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 62: ...62 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë PC CARD Unit 1 4 ...
Page 63: ...63 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 64: ...64 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë PC CARD Unit 2 4 ...
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Page 66: ...66 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë PC CARD Unit 3 4 ...
Page 67: ...67 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 68: ...68 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë PC CARD Unit 4 4 ...
Page 69: ...69 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 70: ...70 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë DVI Unit 1 2 ...
Page 71: ...71 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 72: ...72 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë DVI Unit 2 2 ...
Page 73: ...73 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 74: ...74 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë CPU Unit 1 5 ...
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Page 76: ...76 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë CPU Unit 2 5 ...
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Page 78: ...78 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë CPU Unit 3 5 ...
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Page 80: ...80 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë CPU Unit 4 5 ...
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Page 82: ...82 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë CPU Unit 5 5 ...
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Page 84: ...84 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 1 13 ...
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Page 86: ...86 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 2 13 ...
Page 87: ...87 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 88: ...88 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 3 13 ...
Page 89: ...89 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 90: ...90 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 4 13 ...
Page 91: ...91 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 92: ...92 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 5 13 ...
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Page 94: ...94 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 6 13 ...
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Page 96: ...96 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 7 13 ...
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Page 98: ...98 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 8 13 ...
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Page 100: ...100 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 9 13 ...
Page 101: ...101 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 102: ...102 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 10 13 ...
Page 103: ...103 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 104: ...104 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 11 13 ...
Page 105: ...105 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 106: ...106 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 12 13 ...
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Page 108: ...108 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 13 13 ...
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Page 110: ...110 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë AV Unit 1 3 ...
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Page 112: ...112 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë AV Unit 2 3 ...
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Page 114: ...114 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë AV Unit 3 3 ...
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Page 116: ...116 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë POWER Unit TU GA1U S ...
Page 117: ...117 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 118: ...118 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë POWER Unit TU GAD ...
Page 119: ...119 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 120: ...120 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë DC DC CONVERTER Unit ...
Page 121: ...121 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 122: ...122 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë AUDIO I F Unit ...
Page 132: ...132 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD AV Unit Side A ...
Page 133: ...133 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 144: ...144 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD DVI Unit Component Side ...
Page 146: ...146 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD TMDS Unit Component Side ...
Page 149: ...149 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD POWER Unit Side A ...
Page 150: ...150 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD DC DC CONVERTER Unit Side A ...
Page 151: ...151 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD DC DC CONVERTER Unit Side B ...