Service Precautions; Notes On Soldering; Notes On Replacing; Caution - Pioneer SC-99 Service Manual

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1. SERVICE PRECAUTIONS

1.1 NOTES ON SOLDERING

• For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit.
A
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.
Do NOT use a soldering iron whose tip temperature cannot be controlled.

1.2 NOTES ON REPLACING

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.
PCB ASSY
ASSY NAME
Part No.
B
AWX2013
(SC-99)
AWX2017
DIGITAL
(SC-97)
MAIN
AWX2014
ASSY
(SC-LX89)
C
AWX2018
(SC-LX79)
D
AWH7104
(SC-99)
AWH7108
(SC-97)
D AMP
ASSY
AWH7105
(SC-LX89)
AWH7109
(SC-LX79)
E
AWX2026
(SC-99,SC-97)
DISPLAY
AWX2027
ASSY
(SC-LX89,
SC-LX79)

1.3 CAUTION

• Discharging
Before starting the diagnosis, wait for three minutes until the electricity of the unit is discharged.
• Ground Points
F
Please refer to "Ground Points".
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Ref No. FUNCTION
IC451 3CH SW POWER SUPPLY IC
IC1204 VIDEO PROCESSOR IC
IC1212 DDR IC
IC1602 HDMI INTERFACE IC
IC1609 HDMI INTERFACE IC
IC9002 DSP IC
IC9206 APPLE AUTHENTICATION IC
IC9403
IC9514
POWER SUPPLY IC
IC9515
IC9523
IC9602 HDMI SW IC
IC9703 DSP IC
JA1601
JA1602 HDMI Connector
JA1603
JA9202 LAN Connector
JA9601
JA9602
JA9603
JA9604
HDMI Connector
JA9605
JA9606
JA9607
JA9620
Q4101
Q4102
Q4201
Q4202
Q4301
Q4302
Q4401
Q4402
Q4501
FET
Q4502
Q4601
Q4602
Q4701
Q4702
Q4801
Q4802
Q4901
Q4902
IC6001 FLASH BLANK UC IC
2
3
Part No.
TPS65251RHA-TLB
88DE2750-K
K4T51163QJ-BCE7-K
MN864787-K
MN864788-K
CS49844A-K
H337S3959-TBB
MM3543BH-TBB
MIC94325YMT-TBB
SII9589CTUC-3-K
D808K013DPTP456-K
AKP7268-A-K
AKN7115-A
AKP7268-A-K
IRF6775MPBFS1-TRB
R5F100MHAFA-K
SC-99
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Remarks
IC with heat-pad
IC BGA type
IC with heat-pad
IC with heat-pad
JACK with Cu-through-hole & SMD type
JACK with Cu-through-hole & 10 pin
JACK with Cu-through-hole & SMD type
Pins are under the parts side.
Software is not written.
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