Semiconductor Shapes - Panasonic BT-M1950Y Service Manual

5.NOTE FOR REPAIRING SERVICE
This model's power circuit is partly different in the GND. The
difference of the GND is shown by the LIVE : (
..l_)
side GND
and the ISOLATED(NEUTRAL) : (
rlr)
side GND. Therefore,
care must be taken for the following points.
(1) Do not touch the LIVE side GND or the LIVE side GND and
the ISOLATED(NEUTRAL) side GND simultaneously. If the
above caution is not respected, an electric shock may be
caused. Therefore, make sure that the power cord is surely
removed from the receptacle when, for example, the chassis
is pulled out.
• SEMICONDUCTOR SHAPES
elC
TC4053BP
Of
TC4066BP
HD74LS04P
TC4538BP
HD74LS05P
HD74LSOOP
---1 ...
•N
AN5640
lZ.
l
D
f
HA11423
9
18
N
BT-M1950Y
(2) Do not short between the LIVE side GND and
ISOLATED(NEUTRAL) side GND or never measure with a
measuring apparatus (oscilloscope, etc.) the LIVE side GND
and ISOLATED(NEUTRAL) side GND at the same time. If
the above precaution is not respected, a fuse or any parts
will be broken.
0
Since the circuit diagram is a standard one, the
circuit and circuit constants may be subject to
change for improvement without any notice.
LA7016
NJM4560D
µPC358
ST24BM-1400
TDA4680
0
IN E OUT
AN7808
AN7812F
TA79012S
AN7805F
µPC1498H
Of
FA5301P
I
TDA4670
I
AN5625N
µPC358HA
---,••N
0 0
(Flat package IC)
Of
AN5265
HD74HC32FP
HD74HC158FP
(Flat package IC)
MB90077PF-109
µPC4558G-W
-45-
1
l
(Flat package IC)
MB89647PF-125
CXD20180