Philips DVP620VR/00, Сервисная инструкция

Страница: 233 / 398

1-12-1 SC_08
SCHEMATIC DIAGRAMS / CBA'S AND TEST POINTS
Standard Notes
WARNING
Many electrical and mechanical parts in this chassis
have special characteristics. These characteristics
often pass unnoticed and the protection afforded by
them cannot necessarily be obtained by using replace-
ment components rated for higher voltage, wattage,
etc. Replacement parts that have these special safety
characteristics are identified in this manual and its
supplements; electrical components having such fea-
tures are identified by the mark "
!
" in the schematic
diagram and the parts list. Before replacing any of
these components, read the parts list in this manual
carefully. The use of substitute replacement parts that
do not have the same safety characteristics as speci-
fied in the parts list may create shock, fire, or other
hazards.
Capacitor Temperature Markings
Capacitors and transistors are represented by the fol-
lowing symbols.
Notes:
1. Do not use the part number shown on these draw-
ings for ordering. The correct part number is
shown in the parts list, and may be slightly different
or amended since these drawings were prepared.
2. To maintain original function and reliability of
repaired units, use only original replacement parts
which are listed with their part numbers in the parts
list section of the service manual.
3. How to read converged lines.
4. All resistance values are indicated in ohms
(K=10
3
, M=10
6
).
5. Resistor wattages are 1/4W or 1/6W unless other-
wise specified.
6. All capacitance values are indicated in
µ
F
(P=10
-6
µ
F).
7. All voltages are DC voltages unless otherwise
specified.
8. Voltage indications for PLAY and REC modes on
the schematics are as shown below.
Mark
Capacity
change rate
Standard
temperature
Temperature
range
(B)
±
10% 20°C -25~+85°C
(F)
±
30 - 80% 20°C –25~+85°C
(SR)
±
15%
20°C –25~+85°C
(Y)
±
22.5% 20°C –25~+85°C
1-D3
Distinction Area
Line Number
(1 to 3 digits)
Examples:
(1). "1-D3" means that line number "1" goes to
area "D3."
(2). "1-B1" means that line number "1" goes to
area "B1."
3
2
1
A B C D
1-B1
1-D3
AREA D3
AREA B1
(Top View) (Bottom View)
(Bottom View)
Electrolytic Capacitor
+
Transistor or Digital Transistor
NPN Transistor PNP Transistor
NPN Digital Transistor
PNP Digital
Transistor
(Top View)
(Top View)
E C B
E C B
Digital Transistor
< PCB Symbols >
< Schematic Diagram Symbols >
E C B
(Top View)
(Top View)
E C B
E C B
2 3 1
5.0
(2.5)
PLAY mode
REC mode
5.0
The same voltage for
both PLAY & REC modes.
Indicates that the voltage
is not consistent here.
(Unit: Volt)
www.freeservicemanuals.info