Philips DVP620VR Service Manual page 32

SCHEMATIC DIAGRAMS / CBA'S AND TEST POINTS
WARNING 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 slighily different
or amended since these drawings were prepared.
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- 2. To pana original function and rellability of
ment components rated for higher voltage, wattage, repaired usar, He only original replacement parts
etc. Replacement parts that have these special safety which are listed with their part numbers in the parts
characteristics are identified in this manual and its list section of the service manual.
supplements; electrical components having such fea- 3. How to read converged lines.
tures are identified by the mark " A\ "in the schematic 1-D3
diagram and the parts list. Before replacing any of eee
these components, read the parts list in this manual | Loistinetion Area
carefully. The use of substitute replacement parts that Line Number
do not have the same safety characteristics as speci- (1 to 3 digits)
fied in the parts list may create shock, fire, or other Examples:
hazards. (1). "1-D3" means that line number "1" goes to
: ' area "D3." se
Capacitor Temperature Markings (2). "1-B1" means that line number "1" goes to
area "B1."
Capacity Standard | Temperature
change rate | temperature range
4. All resistance values are indicated in ohms
~_ fo} ™
F) | 430 - 80% 20°C 25~+85°C ieiteisi):
| (F) | #30-80% | 20°C | -25-+85°C 5. Resistor wattages are 1/4W or 1/6W unless other-
+22.5% —25~+85°C 6. All capacitance values are indicated in uF
(P=10° uF).
Capacitors and transistors are represented by the fol- 7, All voltages are DC voltages unless ctherwise
lowing symbols. specified
8. Voltage indications for PLAY and REC modes on
the schematics are as shown below.
. both PLAY & REC modes. _ is not consistent here.
vu : Transistor or Digital Transistor
la Cc B
E
(Top View) (Top View)
Digital Transistor -
NPN Transistor PNP Transistor
ECB. ECB < "re Cal)
(Top View) (Top View)
(_)
NPN Digital Transistor
\ air
ag ~
<I Cl)
ECB ECB
< Schematic Diagram Symbols >
1-12-1 SC_08