5
VSX-1127-K
5
6
7
8
5
6
7
8
A
B
C
D
E
F
1. SERVICE PRECAUTIONS
1.1 NOTES ON SOLDERING
1.2 NOTES ON REPLACING PARTS
1.3 SERVICE NOTICE
• For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit.
Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs
accompanied by reworking of soldering.
• Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 ºC.
Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 ºC in general, although
the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of
the soldering iron.
Do NOT use a soldering iron whose tip temperature cannot be controlled.
Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting
temperatures (hard to melt/easy to harden).
The following lead-free solders are available as service parts:
• Parts numbers of lead-free solder:
GYP1006 1.0 in dia.
GYP1007 0.6 in dia.
GYP1008 0.3 in dia.
The part listed below is difficult to replace as a discrete component part.
When the part listed in the table is defective, replace whole Assy.
Assy Name
D-MAIN Assy
F-USB Assy
HDMI Connector
—————— JACK with Cu-through-hole & SMD type
JA1601, JA9601-JA9607
USB Connector
—————— JACK with Cu-through-hole & 6 pin
JA9201
LAN Connector
—————— JACK with Cu-through-hole & 10 pin
JA9202
D-MAIN 3.3V Power Supply IC
—————— IC with heat-pad
IC9520
D-MAIN 3.3V Power Supply IC
—————— IC with heat-pad
IC9521
D-MAIN 1.8V Power Supply IC
—————— IC with heat-pad
IC9522
DSP IC
—————— IC with heat-pad
IC9002
VIDEO FORMAT CONVERTER
—————— IC BGA type
IC1204
DDR IC
—————— IC BGA type
IC1212
LAN PHY IC
—————— IC with heat-pad
IC9203
NETWORK MEDIA PROCESSOR
—————— IC BGA type
IC9204
HDMI Tx
—————— IC with heat-pad
IC1602
HDMI Rx
—————— IC with heat-pad
IC903
HDMI SW IC
—————— IC with heat-pad
IC9602
USB 5V SW IC
—————— IC with heat-pad
IC805
USB 5V SW Power Supply IC
—————— IC with heat-pad
IC1307
Parts that is Difficult to Replace
Ref No.
Function
Part No.
Remarks
• Discharging
For more detail, please refer to "7. DISASSEMBLY - 1. Discharging".
• Notes on Ground Points Connection
For more detail, please refer to "7. DISASSEMBLY - 2. Notes on Ground Points Connection".
Содержание Elite VSX-60
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Страница 107: ...107 VSX 1127 K 5 6 7 8 5 6 7 8 A B C D E F CP16 CP15 CN2103 CP14 CP13 CP12 A A AUDIO ASSY SIDE B SIDE B Q426 ...
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Страница 133: ...133 VSX 1127 K 5 6 7 8 5 6 7 8 A B C D E F U U SMPS ASSY SIDE B SIDE B CX101 CX102 CX100 ...