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4-2. CIRCUIT BOARDS LOCATION
4-3. PRINTED WIRING BOARDS AND SCHEMATIC
DIAGRAMS
Note:
• All capacitors are in µF unless otherwise noted. pF : µµF 50WV or less are not
indicated except for electrolytics and tantalums.
• All electrolytics are in 50V unless otherwise specified.
• All resistors are in ohms.
kΩ=1000Ω, MΩ=1000kΩ
• Indication of resistance, which dose not have one for rating electrical power, is
as follows.
Pitch : 5mm
Rating electrical power :
1
/
4
W (CHIP :
1
/
10
W)
•
: internal component.
•
: panel designation and adjustment for repair.
• All variable and adjustable resistors have characteristic curve B, unless other-
wise noted.
•As to the voltage volue shown by the semiconductors on the Shematic Dia-
gram, see the another list
• Readings are taken with a color-bar signal input.
• Readings are taken with a 10MΩ digital multimeter.
• Voltages are dc with respect to ground unless otherwise noted.
• Voltage variations may be noted due to normal production tolerances.
• All voltages are in V.
*
: Measurement impossibillity.
•
v
: B+line.
•
: signal path.
• Circled numbers are waveform references.
Reference information
RESISTOR : RN METAL FILM
: RC SOLID
: FPRD NONFLAMMABLE CARBON
: FUSE NONFLAMMABLE FUSIBLE
: RW NONFLAMMABLE WIREWOUND
: RS NONFLAMMABLE METAL OXIDE
: RB NONFLAMMABLE CEMENT
:
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
Note: The components identified by shading and mark ¡
are critical for safety. Replace only with part number
specified.
A
B
T
G
D
S
B1 E1C2
B2 C1E2
2
3
4
5
6
7
8
9
0
!¡
!™
!¢
!§
!¶
!•
–
1
G
D
S
B2 E2C1
B1 C2E1
B2 E2C1
B1 C2E1
B2 E2C1
B1 C2E1
!ª
B1 E1
E2
C1(B2)C2
@º
B1
E2
C1C2
@™
@£
(B2)
E1
(B2)
E1
E2
B1
C2C1
@¡
B1
E1
C2
B2
C1
E2
G
S
S
D
G
D
B1
E1
C2
B2
C1
E2
B1
E2
C2C1(B2)
E2
B1
C1
C2E1(B2)
C2
B1
C1
E2E1(B2)
C2
B1
C1
E2
B2
E1
C2
Ver.1.5
Transistor
(FET)
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Discrete semiconductot
(Chip semiconductors that are not actually used are included.)
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Source
Source
Anode
Anode
(NC)
(NC)
Cathode
Anode
Cathode
Common
Cathode
Cathode
Common
Cathode
Cathode
Common
Common
Common
Common
Cathode
Anode
Base
Emitter
Collector
Base
Emitter
Collector
Drain
Gate
Gate
Drain
Device Printed symbol Terminal name
Circuit
Terminal name of semiconductors in silk screen
printed circuit ( )
Anode
Anode
Anode Cathode
Anode Anode
Cathode
!£
Transistor
(FET)
Transistor
(FET)
!∞
Emitter
Collector
Base
Transistor
Source
Gate
Drain
Cathode
Anode
Anode
Cathode
Anode
Anode
Pin Volt Pin Volt Pin Volt
IC001 1 2.7
20
3 0.3
4 0.5
5 2.5
6 2.5
7 2.5
8 4.3
9-
10 0.7
11 2.5
12 0
13 0.3
14 0.0
15 3.7
16 -
17 -
18 0
19 2.2
20 2.2
21 2.9
22 0.8
23 2.1
24 2.1
25 -
26 1.7
27 3.8
28 0
29 GND
30 0
31 0
32 0
IC201 1 3.4
2 3.4
3 1.6
4 3.3
5 4.2
6 3.4
7 3.4
8 GND
9 4.3
10 1.6
11 1.6
12 GND
13 1.8
14 3.5
15 2.1
16 1.5
17 2.4
18 2.0
19 1.9
20 1.9
21 3.4
22 3.4
23 0.4
24 1.7
T BOARD IC VOLTAGE LIST
All voltage are in V.
- : Not used
BCE
Q003 0 3.7 GND
Q004 3.7 0.7 4.3
Q007 2.6 0.5 4.3
Q201 1.0 4.2 0.3
Q202 1.9 GND 2.6
Q203 0 3.5 GND
T BOARD TRANSISTOR
VOLTAGE LIST
123456
Q002 0 1.7 2.2 29.5 1.7 2.2
Q006 1.2 1.2 GND 0 0 GND
All voltage are in V.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
A
B
C
D
E
F
G
H
I
J
4.5V
2
30V
4.5V
30V
4.5V
4.5V
4.5V
4.5V
31
IF
IF
IF
IF
SIF
30V
4.5V
IF
SIF
VIDEO VIDEO
VIDEO
IF
1 2 3 4 5 6 7 8
9
10
11
12
13
14
15
16
1718192021222324
25
26
27
28
29
30
31
32
1 2 3 4 5 6 7
8
109 11 12
131415161718192021222324
1
2
3
4
5
6
7
8
9
10
11
12
IF
MB
VB
BS
TV
UB
AGC
ANT
G
SWF
I
G
O
O
1
2
3 4
6
1
2
34
6
IC001
C001
R016
R017
R011
R005
C003
RV004
C008
C007
R004
R009
Q001
R008
RV001
C005
R014
R018
R029
IC201
R209
R210
R205
C206
R208
R221
C213
C215
C212
RV201
C226
C225
R223
R228
R225
C222
R222
C218
R230
C209
C211R220
Q201
R216
R219
R218
C210
Q202
R201
C208
R024
R022
R019
R020
D001
R241
R242
R243
C011
Q203
C004
C015
Q003
Q004
R021
Q002
R240
C234
C235
R012
Q006
R032
R001
C002
L201
C006
C014
R010
R214
R215
R231
C236
Q007
C106
C109
C110
C108
J101
C016
C202
C205
R226
C224
C223
C219
C012
C107
C203
R030
C018
CN201
C105
R031
C204
RV002
R002
R003
D002
C021
CF201
C207
CF202
R213
R212
R206
CF203
R229
L206
R217
R013
TU101
L205
SWF201
T201 T202
R202
R224
R111
4.7
25V
:7L
47
6.3V
:7L
560p
CH:CHIP
47
6.3V
:7L
0.01
B:CHIP
0.1
25V
F:CHIP
0.001 B:CHIP
0.47
25V
F:CHIP
10
16V
:7L
0.1 25V F:CHIP
100p
CH:CHIP
27p CH:CHIP
2p
CK:CHIP
0.01
B:CHIP
0.01
B:CHIP
0.01
B:CHIP
0.01 B:CHIP
0.01
B:CHIP
47
6.3V
:7L
0.01
B:CHIP
10
16V
:7L
0.01 B:CHIP
0.01 B:CHIP
0.01
B:CHIP
0.001
B:CHIP
22
6.3V
:7L
MA152WK-TX
AN5707NFAP
M51348AFP
15µH
:FR-CP
2SB709A-R
XN4601
UN2210-TX
UN2110-TX
XN4215
UN211D-TX
2SC3837KT146Q
2SB709A-R
UN2210
100k
:CHIP
47k
:CHIP
150k
:CHIP
270k
:RN-CP
33k
:RN-CP
2.2
:CHIP
10k
:CHIP
330k
:CHIP
39k
:CHIP
39k
:CHIP
18k :CHIP
100k
:CHIP
270k
:CHIP
470k
:CHIP
100k
:CHIP
47k
:CHIP
47k
:CHIP
470
:CHIP
2.2k
:CHIP
680
:CHIP
100k :CHIP
680 :CHIP
1.8k :CHIP
33k :CHIP
1k
:CHIP
10
:CHIP
1.2k
:CHIP
68
:CHIP
390
:CHIP
47
:CHIP
8.2k
:CHIP
1k
:CHIP
3.9k
:CHIP
10k
:CHIP
10
:CHIP
10
:CHIP
10k
:CHIP
180k
:CHIP
470
:CHIP
22k
:CHIP
0.001 B:CHIP
0.001 B:CHIP
0.001 B:CHIP
0.001 B:CHIP
0.1
25V
F:CHIP
0.01
B:CHIP
10
16V
:7L
2.2k
:CHIP
0.01
B:CHIP
1
16V
F:CHIP
0.1 F:CHIP
47k
:CHIP
100k
:CHIP
1k
:CHIP
0.1 25V F:CHIP
1
16V
F:CHIP
1
1
0
:CHIP
0.001 B:CHIP
82k
:CHIP
0.001
B:CHIP
47k
:CHIP
100k
:CHIP
68k
:CHIP
12P
MA157-TX
0.01
B:CHIP
TPS4.5MC
10p
CH:CHIP
CD4.5MC
10k :CHIP
680 :CHIP
1.8k :CHIP
SFSL4.5MC
10k
:CHIP
1µH :FR-CP
1k :CHIP
56k :CHIP
TEPA5
0.82µH
:FR-CP TSF1226L
45.75MHZ 45.75MHZ
270
:CHIP
1.5k
:CHIP
22
:CHIP
2
1
3
1
2
3
4
6
5
1
2
3
4
5
6
1
3
2
4
21
3
21
3
12
3
*
BRT
UP
VHP
VLP
CON
UA
VHA
VLA
VCC
UH
SUD
AFC
HSYNC
H.P
M.M
FH
NC
CHCAL
STOP
MANU
CHA
CS
NC
NC
BT
U/V
BS
GND
V OUT
U OUT
NC
FILTER OUT
FILTER IN
(VIF)
(SIF)
(SIF)
AGC
AGC
RF AGC
OUT
RF AGC
DELAY
VCC
IF IN
IF IN
(VIF)
GND
VCC
SIF IN
DC F/B
GND
IF AGC
SYNC OUT
SYNC SEP
AFT COIL
REF COIL
REF COIL
DET OUT
AFT OUT
LIMITER
FM DETIN
E-VDL
AUDIO
ADJ
OUT
OUT
DEF
VIDEO
AUDIO
A.GND
AFT
LLD
T
H.P
AUDIO
D.GND
4.5V
VIDEO
A.GND
H.SYNC
VHF
IND
UP DOWN SW
30V
UB
ULOW
VLOW
VHI
ELECTRONIC TUNER
VIF,SIF
B-¥SS823.<U..>-T..