Servicing Notes - Sony STR-DA3100ES Service Manual

• MODEL IDENTIFICATION
– Back Panel –
Model
US model
Canadian model
ERROR MESSAGES
If there is a malfunction, the display shows a code of two numbers and a message. You can check the condition of the system by message.
Refer to the following table to solve the problem.
messages
DECODE ERROR
PROTECTOR
PROTECTOR
PROTECTOR
PROTECTOR
PROTECTOR
SECTION 1

SERVICING NOTES

PART No.
PART No.
2-514-839-0[]
2-514-839-1[]
check code
01
11
12
13
21
22
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
cause and response
Appears when the signal which the receiver can not decode
(example DSD-CD) is input when "DEC. PRI." in the CUSTOM
IZE menu is set to "PCM". Set to "AUTO".
Irregular current output to the speakers. Turn off the receiver and
check the speaker connection. Then turn on the power again. Be
comes this display, When short current flowed with breakage of
the power MOS, or when detection resistor becomes open in
connection with it.
The amplifier section is overheated. Turn off the receiver and
check that the ventilation hole is not covered. Leave the receiver
for a while and turn on the power again.
The power supply section is overheated. Turn off the receiver and
check that the ventilation hole is not covered. leave the receiver
for a while and turn on the power again.
DC between speaker terminal is detected (abnomalities such as
DSD 0DATA and signal clip can be considered). Turn off the
receiver and check the speaker connection. Then turn on the power
again.
Two defects a e considered, when current detection of a switching
power supply operated by the super fluous speaker, +B power
supply shut down or when the power MOS broke and +B line
short. Turn off the receiver and check the speaker connection.
Then turn on the power again.
STR-DA3100ES
5