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7-3. CIRCUIT BOARDS LOCATION
ZG
CG
CR
H2
ZR
H1
A (41PX1/41PX1K),
AE (41PX1R)
CB
U (41PX1/41PX1K),
UE (41PX1R)
D
E
G
7-4. SCHEMATIC DIAGRAMS AND
PRINTED WIRING BOARDS
Note:
• The parts marked "#" on schematic diagrams are not mounted.
• All capacitors are in µF unless otherwise noted. (pF: µµF)
Capacitors without voltage indication are all 50 V.
• Indication of resistance, which does not have one for rating
electrical power, is as follows.
Pitch: 5 mm
Rating electrical power 1/4 W (CHIP : 1/10 W)
• All resistors are in ohms.
•
: nonflammable resistor.
• 5 : fusible resistor.
•
: internal component.
•
: panel designation, and adjustment for repair.
• All variable and adjustable resistors have characteristic curve B,
unless otherwise noted.
•
: earth-ground.
•
: earth-chassis.
• All voltages are in V.
• Readings are taken with a 10 M digital multimeter.
• Readings are taken with a color-bar signal input.
• Voltage variations may be noted due to normal production
tolerances.
•
: Can not be measured.
*
• NO MARK: Common
• <
> : SECAM
• (
) : NTSC 3.58 MHz
• Circled numbers are waveform references.
V
•
: B + bus.
•
: B – bus.
V
F
•
: Signal path.
[
• The components identified by
in this basic schematic diagram
have been carefully factory-selected for each set in order to
satisfy regulations regarding X-ray radiation.
Should replacement be required, replace only with the value
originally used.
]
• When replacing components identified by
, make the
necessary adjustments indicated. (See page 31)
• When replacing the part in below table, be sure to perform the
related adjustment.
Part Replaced ([)
R1
Part Replaced (])
E Board
C515,
C516,
C554,
D504,
D507,
L506,
Q502,
R1,
R514,
R516,
R517,
T502,
T504 (FBT)
G Board IC6005
• Divided schematic diagram
Schematic diagrams of A, AE, D, and E boards are divided into
several pieces. Information to where the line is to be connected is
printed at the end of each line.
For example, [ TO A1/5,A2/5_1 ] means the line is connected to
Ref. No. 1 of A (1/5) and A (2/5) schematic diagrams.
TO A1/5,A2/5_1
Ref. No.
Name of divided schematic diagram
Reference information
RESISTOR
: RN
METAL FILM
: RC
SOLID
: FPRD
NONFLAMMABLE CARBON
: FUSE
NONFLAMMABLE FUSIBLE
: RW
NONFLAMMABLE WIREWOUND
: RS
NONFLAMMABLE METAL OXIDE
: RB
NONFLAMMABLE CEMENT
COIL
: LF-8L
MICRO INDUCTOR
CAPACITOR
: TA
TANTALUM
: PS
STYROL
: PP
POLYPROPYLENE
: PT
MYLAR
: MPS
METALIZED POLYESTER
: MPP
METALIZED POLYPROPYLENE
: ALB
BIPOLAR
: ALT
HIGH TEMPERATURE
: ALR
HIGH RIPPLE
Note: The components identified by shading and mark
¡ are critical for safety. Replace only with part
number specified.
– 54 –
KP-41PX1/41PX1K/41PX1R
K
RM-892
RM-892
Terminal name of semiconductors in silk screen
printed circuit (
)
*
Device
Printed symbol
Terminal name
Circuit
Collector
1
Transistor
Base
Emitter
Collector
2
Transistor
Base
Emitter
Cathode
3
Diode
Anode
Cathode
4
Diode
(NC)
Anode
Cathode
5
Diode
Anode
(NC)
Common
6
Diode
Anode
Cathode
Common
7
Diode
Anode
Cathode
Common
8
Diode
Anode
Anode
Common
9
Diode
Anode
Anode
Common
0
Diode
Cathode
Cathode
Common
qa
Diode
Cathode
Cathode
Anode
Cathode
qs
Diode
Anode
Anode
Cathode
Anode
Transistor
Source
Drain
qd
(FET)
Gate
D
D
G
G
Source
Transistor
S
S
qf
Drain
(FET)
Gate
D
D
Source
Transistor
qg
Drain
G
(FET)
Gate
S
S
Emitter
qh
Transistor
Collector
Base
C1
C2
C2
B1 E1
qj
Transistor
B1
E2
B2 C1
E1
E2
C1
B2 E2
qk
Transistor
C1
C2
E1
B1 C2
B1
C1
B2 E2
E1
E2
ql
Transistor
E1
B1 C2
E1
E2
C1
B2 E2
Transistor
w;
B1
E1
B1 C2
C1
C2
C1(B2)
C2
E2
B1 E1
Transistor
wa
B1
C2
C1(B2)
E2
E2
E1(B2)
E2
(B2)
B1
E1
E2
ws
Transistor
B1
C1
C2
C1
C2
(B2)
E1(B2)
C2
E2
E1
B1
wd
Transistor
B1
C2
C1
C1
C2
–
Discrete semiconductot
(Chip semiconductors that are not actually used are included.)
RM-862
G
B2
B2
B2
Ver.1.5
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