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– 109 – – 110 –
5-3. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
Capacitors without voltage indication are all 50V.
• All resistors are in ohms.
kΩ = 1000Ω, MΩ = 1000kΩ
• Indication of resistance, which does not have one for rating electrical
power, is as follows.
Pitch: 5 mm
Rating electrical power: 1/4W(CHIP:1/10W)
• : nonflammable resistor.
• : fusible resistor.
•
f
: internal component.
• : panel designation and adjustment for repair.
• All variable and adjustable resistors have characteristic curve B, unless
otherwise noted.
• : earth-chassis.
• Readings are taken with a color-bar signal input.
• Readings are taken with a 10MΩ digital multimeter.
• Voltage variations may be noted due to normal production tolerances.
• All voltages are in V.
no mark : REC/PB
( ): REC
< > : PB
• Circled numbers are waveform reference.
• : B + line
• : B – line.
•
÷
: signal path.
V
V
Reference information
RESISTOR : RN METAL FILM
: RC SOLID
: FPRD NONFRAMMABLE CARBON
: FUSE NONFRAMMABLE FUSIBLE
: RW NONFRAMMABLE WIREWOUND
: RS NONFRAMMABLE METAL OXIDE
: RB NONFRAMMABLE CEMENT
: Ŷ ADJUSTMENT RESISTOR
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
2
3
4
5
6
7
1
Transistor
Transistor
Diode
Diode
Diode
Diode
Diode
(NC)
(NC)
Cathode
Anode
Cathode
Common
Common
Cathode
Anode
Base
Emitter
Collector
Base
Emitter
Collector
Device Printed symbol Terminal name
Circuit
Terminal name of semiconductors in silk screen
printed circuit ( )
Anode
Anode
Anode Cathode
Cathode
*
Ver.1.6
(Chip semiconductors that are not actually used are included.)
Note: The components identified by shading and mark B
are critical for safety. Replace only with part
nummber specified.
MA10 (3/3)
– MA10 BOARD –
[
VIDEO REC/PB AMP
]
SYSTEM CONTROL, MAIN MICON
VCR SERVO, AUDIO OUT
MA10 (2/3)
MA10 (1/3)
[
Y/C PROCESS
]
IC
IC001 B-6
IC002 C-6
IC003 B-6
IC201 B-1
IC401 A-4
IC402 B-4
IC403 B-3
IC404 D-7
IC405 D-7
IC701 E-3
IC801 E-5
IC802 D-6
IC901 C-2
IC1001 E-6
IC1101 A-7
TRANSISTOR
*
Q001 B-2 1
Q002 B-2 1
Q003 B-6 1
Q009 B-7 1
Q201 B-1 1
Q402 D-7 1
Q451 C-4 -
Q452 C-6 -
Q453 C-2 -
Q701 E-3 1
Q801 C-4 1
Q803 D-5 1
Q808 D-5 1
Q809 D-5 1
Q812 D-5 1
Q815 D-6 1
Q821 D-5 1
Q823 E-5 1
Q824 E-5 1
Q825 E-5 1
Q830 D-5 1
Q901 D-2 1
Q902 D-2 1
Q1001 E-7 -
Q1002 D-6 1
Q1101 A-1 1
DIODE
*
D001 C-7
D002 C-7
D004 B-6
D005 A-6
D006 B-5
D007 B-5
D201 B-7
D202 B-7
D251 C-7
D252 D-7
D253 D-7
D254 C-6
D402 B-3
D403 C-7
D405 E-4
D406 C-6
D451 C-4
D1101 A-1
D1103 A-1
D1105 A-2
D1110 A-7
D1117 A-5
D1118 A-5
D1119 A-5
MA10 BOARD
1234567
A
B
C
D
E