Safety Notes - Sony FW-32BU30J Service Manual

2021/06/23 21:31:19 (GMT+09:00)
1-1. Warnings and Caution
1) CAUTION :These servicing instructions are for use by qualified service
personnel only.
2) To reduce the risk of electric shock, do not perform any servicing other than that
contained in the operating instructions unless you are qualified to do so.
3) WARNING!! : An isolation transformer should be used during any service to avoid
possible shock hazard, because of live chassis. The chassis of this receiver is
directly connected to the ac power line.
The replaceable fuse could be in the neutral of the mains supply. When replacing the
fuse, the mains shall be disconnected for de-energize the phase conductors.
(*Except AC ADAPTOR, Because it does not carry out replacing an internal fuse.)
4) CARRYING THE TV :
and avoid causing serious injury :
• Carry the TV with an adequate number of people; larger size TVs require two or
more people.
•Correct hand placement while carrying the TV is very important for safety
and to avoid damages.
5) SAFETY-RELATED COMPONENT WARNING!!
shading and ! mark on the exploded views, and in the parts list are critical for safe
operation. Replace these components with Sony parts whose part numbers appear
as shown in this manual or in supplements published by Sony. Circuit adjustments
that are critical for safe operation are identified in this manual. Follow these
procedures whenever critical components are replaced or improper operation is
suspected.
6) IMPORTANT REMINDER FOR TV MAINBOARD REPLACEMENT :
It is mandatory for service centers to confirm the TV's system information after each
repair carried out with Mainboard replacement.

SAFETY NOTES

Be sure to follow these guidelines to protect your property
: Components identified by
SELF DIAGNOSTIC FUNCTION
S A F E T Y N O T E S
Whenever a TV Main board is replaced, the correct TV Model and Serial number must be
reinserted into memory.
This is a MANDATORY procedure that each service center must apply.
Please refer to the chapter of ADJUSTMENT in this service manual to find out how to set the
model number and serial number in service mode.
1-2-1. Caution Handling of LCD Panel
When repairing the LCD Panel, make sure you are grounded with a wrist band.
When repairing the LCD Panel on the wall, the panel must be secured using the 4 mounting
holes on the rear cover.
1) Do not press the panel or frame edge to avoid the risk of electric shock.
2) Do not scratch or press on the panel with any sharp objects.
3) Do not leave the module in high temperature or in areas of high humidity for an
extended period of time.
4) Do not expose the LCD panel to direct sunlight.
5) Avoid contact with water. It may cause short circuit within the module.
6)Disconnect the AC power when replacing the backlight (CCFL) or inverter circuit. (High
voltage occurs at the inverter circuit at 650Vrms)
7) Always clean the LCD panel with a soft cloth material.
8) Use care when handling the wires or connectors of the inverter circuit. Damaging the wires
may cause a short circuit.
9) Protect the panel from ESD to avoid damaging the electronic circuit (C-MOS).
TROUBLESHOOTING SERVICE ADJUSMENT DIAGRAMS HANDLING GUIE
5
SYS SET