Pioneer SC-LX85 Service Manual

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1. SERVICE PRECAUTIONS
1.1 NOTES ON SOLDERING
1.2 NOTES ON REPLACING
1.3 CAUTION
• 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 373 °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:
• Pa
rts 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.
Parts that is Difficult to Replace
ASSY NAME
PCB ASSY
Part No.
Ref No. FUNCTION Part No. Remarks
IC101 MAIN CPU UPD61283F1-407LU2A BGA
IC903 HDMI RECEIVER SII9233ACTU IC with heat-pad
IC905 HDMI SWITCH SII9387CTU IC with heat-pad
IC1204
DIGITAL VIDEO FORMAT
CONVERTER
88DE2750 BGA
IC1212(MAIN)
DDR2-SDRAM H5PS5162GFR-S5C-K BGA
IC1212 (SUB)
DDR2-SDRAM K4T51163QI-HCE7 BGA
JA1501
CONNECTOR
(for BLUE TOOTH)
CKS5712-A Land is under parts
IC1602 HDMI TRANSMITTER SII9136CTU IC with heat-pad
IC1603 HDMI TRANSMITTER SII9136CTU IC with heat-pad
IC9002 1st DSP D810K013BZKB400-K BGA
IC9702 2nd DSP D810K013BZKB400-K BGA
IC9204 MEDIA PROCESSOR DM860 BGA
IC9203 LAN PHY LAN8700C-AEZG IC with heat-pad
IC9205 FLASH ROM AYW7346-A
MAC Address
closed-door
IC9510 REGULATOR NJM2846DL3-33 IC with heat-pad
DIGITAL MAIN
ASSY
AWX9827
(SC-57)
AWX9824
(SC-55)
(SC-1526-K)
IC9509 REGULATOR MM1701WH IC with heat-pad
IR POWER
AMP ASSY
AWH7030
(SC-57)
AWH7039
(SC-55)
(SC-1526-K)
Q4101,4102
Q4201,4202
Q4301,4302
Q4401,4402
Q4501,4502
Q4601,4602
Q4701,4702
Q4801,4802
Q4901,4902
FET IRF6775MPBF Land is under parts
• Discharging
Before starting the diagnosis, wait for three minutes until the electricity of the unit is discharged.
• Ground Points
Please refer to page 51, “Ground Points”.

Pioneer SC-LX85 Specifications

General

Frequency range	5 - 100000 Hz
Output impedance	6 Ω
Input sensitivity	400 mV
Audio output channels	9.2 channels
Audio A/D Converter (ADC)	24-bit/192kHz
Signal-to-Noise Ratio (SNR)	103 dB
Power output per channel (1KHz@6 Ohm)	190 W
Power output per channel (20-20KHz@8 Ohm)	- W
HDMI in	7
AC (power) in	Yes
Composite video in	4
Digital audio coaxial in	2
Ethernet LAN (RJ-45) ports	1
Component video (YPbPr/YCbCr) in	3
Headphone connectivity	3.5 mm
Connectivity technology	Wired & Wireless
Speakers connectivity type	RCA
Wi-Fi	-
Supported radio bands	AM, FM
Preset stations quantity	63
Optical drive included	No
Product color	Black
Audio decoders	Dolby Digital, Dolby Digital EX, Dolby Digital Plus, Dolby Pro Logic, Dolby Pro Logic II, Dolby Pro Logic IIx, Dolby Pro Logic IIz, Dolby TrueHD, DTS, DTS 96/24, DTS Neo:6, DTS-ES, DTS-HD, THX Surround EX
Volume control	Rotary
Apple docking compatibility	iPad, iPhone, iPod
Graphical user interface (GUI) language	English, French, German, Italian, Russian, Spanish
AC input voltage	220-230 V
AC input frequency	50 - 60 Hz
THX-certified	THX

Weight and Dimensions

Depth	442 mm
Width	435 mm
Height	185 mm