Servicing Notes - Sony STR-DH540 Service Manual

STR-DH540
Ver. 1.3
MODEL IDENTIFICATION
–BACK PANEL–
Model
US, Canadian
AEP, UK
Australian
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 viscous (sticky, less prone to fl ow) 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.
Note: Refer to SUPPLEMENT-1 for adding SERVICING NOTES
(TROUBLESHOOTING)
4
SECTION 1

SERVICING NOTES

NOTE OF REPLACING THE IC3506 AND IC4100 ON
THE DIGITAL BOARD
IC3506 and IC4100 on the DIGITAL board cannot exchange with
single. When these parts on the DIGITAL board are damaged,
exchange the entire mounted board.
NOTE OF REPLACING THE COMPLETE DIGITAL
BOARD
When the COMPLETE DIGITAL BOARD is exchanged, please
perform the following procedures.
Part No.
a) RESET MODEL AND DESTINATION SETTING
1. Press the [?/1] button to turn on the main power.
Part No.
2. While pressing [DISPLAY] button, press and release the
4-442-874-0[]
4-442-874-1[]
3. Press the [ M ] or [ m ] key of the remote commander, the
4-442-874-2[]
4. Press the [ ] key of the remote commander to enter the
5. Press the [ M ] or [ m ] key of the remote commander to
6. Press the [ M ] or [ m ] key of the remote commander to select
b) FIX MODEL AND DESTINATION
Please refer to "FIX MODEL AND DESTINATION MODE" in
page 12 for fi xing the model and destination of set.
[A.F.D.], [MOVIE], [MUSIC] button in order, the message
"SPECIALIZE" appears.
message "<SPECIAL>" appears.
Special Menu List.
select "MODEL&AREA" then press [ ] key of the remote
commander.
"MD.DST.UNFIX", press [ ] key of the remote commander
for resetting the model and destination.