4
SC-71
1
2
3
4
A
B
C
D
E
F
1
2
3
4
1. SERVICE PRECAUTIONS
1.1 NOTES ON SOLDERING
1.2 NOTES ON REPLACING
• 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 °C.
Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around
3
7
3
°C 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.
A
SS
Y NAME
PCB A
SS
Y
Part No.
Ref No.
FUNCTION
Part No.
Remarks
IC451
3
CH
S
W POWER
S
UPPLY IC
TP
S
65251RHA-TLB
IC90
3
HDMI
S
W IC
S
II9587CNUC-
3
-K
IC with heat-pad
IC1204 VIDEO
PROCE
SS
OR IC
88DE2750-K
IC1212 DDR
IC
H5P
S
5162GFR-
S
5C-K
IC BGA type
IC1216
VTT/VREF REGULATOR IC
BD
3
5
3
9NUX-TLB
IC1602 HDMI
INTERFACE
IC
S
II9616CTUC-K
IC9002 D
S
P IC
D808K01
3
DPTP400-K
IC920
3
LAN
PHY
IC
LAN8720A-CP-TBB
IC with heat-pad
IC9204 MEDIA
PROCE
SS
OR IC
DM860A-K
IC BGA type
IC9206 APPLE
AUTHENTICATION
IC H
33
7
S3
959-TBB
IC9602 HDMI
INTERFACE
IC
S
II9575CTUC-K
IC with heat-pad
JA1601
JA160
3
HDMI Connector
AKP7268-A-K
JACK with Cu-through-hole &
S
MD type
JA9201 U
S
B Connector
DKB1106-A
JACK with Cu-through-hole & 6 pin
JA9202
LAN Connector
AKN7114-1
JACK with Cu-through-hole & 10 pin
JA9601
JA9602
JA960
3
JA9604
JA9605
JA9606
JA9607
DIGITAL
MAIN_L
A
SS
Y
AWX1
3
5
3
JA9620
HDMI Connector
AKP7268-A-K
JACK with Cu-through-hole &
S
MD type
Q4101
Q4102
Q4201
Q4202
Q4
3
01
Q4
3
02
Q4401
Q4402
Q4501
Q4502
Q4601
Q4602
Q4701
D-AMP_
SS
A
SS
Y
AWX1425
Q4702
FET IRF6775MPBF-TRB
Land
is
under
parts
DI
S
PLAY
A
SS
Y
AWX1455
(
S
C-71)
AWX1507
(
S
C-1228-K,
S
C-122
3
-K)
IC6001 FLA
S
H BLANK UC IC
R5F100MHAFA-K
S
oftware is not written