Sony TA-F448EB User manual

MICROFILM
TA-F448EB
INTEGRATED STEREO AMPLIFIER
+11
–3
SERVICE MANUAL
AEP Model
UK Model
SPECIFICATIONS
Amplifier section
DIN power output
85 W + 85 W (4 ohms at 1 kHz)
55 W + 55 W (8 ohms at 1 kHz)
Total harmonic distortion
Less than 0.008% (at 10 W output)
Frequency response
PHONO (20 Hz – 20 kHz): RIAA equalization curve ±0.5 dB
TUNER, CD, AUX, TAPE1/DAT, TAPE2/MD: 7 Hz – 100 kHz dB
S/N (network A)
PHONO: 94 dB
TUNER, CD, AUX, TAPE1/DAT, TAPE2/MD: 105 dB
Output voltage/impedance
RECOUT: 150 mV, 1 kilohm
PHONES: 10 mW (at 8 ohms)
Speakers impedance
4 – 16 ohms, 8 – 16 ohms (SPEAKERS A + B)
Damping factor
100 (8 ohms, 1 kHz)
General
System
Poweramplifier:Pure-complementarySEPP OCLpower amplifierwith
all stages directly coupled
Preamplifier: Low-noise, equalizer amplifier
Power requirements
230 V AC, 50/60 Hz
Power consumption
180 W
Dimensions (approx.) (w/h/d)
430 ×135 ×365 mm
incl. projecting parts and controls
Mass (approx.)
6.8 kg
Design and specifications are subject to change without notice.

– 2 –
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK !OR DOTTED
LINE WITH MARK !ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
TABLE OF CONTENTS
1. GENERAL ................................................................... 3
2. DISASSEMBLY.......................................................... 5
3. ELECTRICAL ADJUSTMENTS ......................... 7
4. DIAGRAMS ................................................................. 8
4-1. Printed Wiring Boards ..................................................... 10
4-2. Schematic Diagram ......................................................... 15
5. EXPLODEDVIEWS ................................................. 19
6. ELECTRICAL PARTS LIST................................ 22

– 3 –
SECTION 1
GENERAL This section is extracted
from instruction manual.

– 4 –

– 5 –
Note: Follow the disassembly procedure in the numerical order given.
CASE ASS'Y
SECTION 2
DISASSEMBLY
FRONT PANEL SECTION
1 two screws
(case 3 TP2)
2 three screws
(case 3 TP2)
3 two screws
(case 3 TP2)
3 two screws
(case 3 TP2)
4 case ass'y
1 connector
(CN201)
2 connector
(CN701)
3 connector
(CN405)
4 connector
(CN809)
5 connector
(CN104)
6 five screws
(3
× 8)
7 two screws
(3
× 8)
8 screw
(BVTP2.6
× 8)
8 screw
(BVTP3
× 8)
9 front panel section

– 6 –
INPUT BAORD, MAIN (B) BAORD
1 two connectors
(CN301, 302)
2 connector
(CN104)
3 three screws
(3
× 8)
4 Remove the INPUT board
to direction of the arrow
A .
5 two connectors
(CN16, 103)
!¡ four screws (H)
6 two connectors
(CN401, 402)
!º screw
(3
× 8)
8 connector
(CN405)
7 two connectors
(CN403A, 404A)
9 Break the soldering of
three power transformer
leads.
!º three screws
(3
× 8)
!¢ heat sink
!£ two screws
(transistor)
!™ MAIN (B) board
A
!¢
heat sink
!£ two screws
(transistor)
!¡ four screws (H)
MAIN (A) BOARD
1 connector
(CN201)
2 five screws
3 MAIN (A) board

– 7 –
+
–
BIAS ADJUSTMENT
Adjustment Procedure:
1. Rotate fully the bias adjusting semi-fixed resistors (RV301 (L-
CH), RV351 (R-CH)) to the minimum position (counterclock-
wise).
2. Connect a digital voltmeter to the CN406 (L-CH) and CN407
(R-CH).
3. Set the slidack to 0VAC, and press the POWER button (ON)
on the set.
4. Raise gradually the slidack voltage up to the rated voltage (230
V AC).
5. At this time, confirm that the speaker relay is turned on (it will
click).
6. Adjust the RV301 (L-CH) and RV351 (R-CH) so that a reading
of digital voltmeter is from 10 mV to 20 mV.
7. Return the slidack to 0 V AC, and press the POWER button
(OFF) on the set.
pin 1pin 3
CN406 (L-CH) – +
CN407 (R-CH) + –
Connection andAdjustment Location:
[MAIN (A) BOARD]
– Component side –
[MAIN (B) BOARD] – Component side –
digital voltmeter
C372 C322
RV351
(R-CH)
RV301
(L-CH)
BIAS
Adjustment
C459 C409
CN407
31
SECTION 3
ELECTRICAL ADJUSTMENT
CN406
13

– 8 –
• IC Block Diagram
IC401 µPC1237HA
SECTION 4
DIAGRAMS
1 2 3 4 5 6 7 8
OVER LOAD DET
F/F
OFFSET DET
LATCH/
AUTORESET
V
CC ON
MUTE
AC OFF
DET
V
CC

– 9 –
• Circuit Boards Location
MAIN (B) board SP-TM board
INPUT board
MAIN (A) board
VOL board
LED-F board
SW-F board
SP-SW board
HP board
LED-P board

– 19 –
SECTION 5
EXPLODED VIEWS
•Items marked “*” are not stocked since they
are seldom required for routine service. Some
delayshould beanticipated whenordering these
items.
•The mechanical parts with no reference num-
ber in the exploded views are not supplied.
•Accessories and packing materials are given in
the last of the electrical parts list.
NOTE:
•-XX and -X mean standardized parts, so they
mayhavesomedifferencefrom theoriginalone.
•Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
↑↑
Parts Color Cabinet's Color
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
1 4-967-961-01 SCREW (3X8)
2 X-4947-025-1 FOOT ASSY
3 7-685-872-09 SCREW +BVTT 3X8 (S)
4 4-951-620-01 SCREW (2.6X8), +BVTP
5 3-363-099-61 SCREW (CASE 3 TP2)
6 X-4948-403-1 CASE ASSY
1
1
1
1
2
2
1
5
5
5
56
3
11
4
not
supplied
not supplied
(1) CASE SECTION
The componentsidentifiedby mark
!or dotted line with mark !are
critical for safety.
Replace only with part number
specified.

– 20 –
60
62
61
59
60
57
56 69
55 54
58
56
53
52
51
63 68
67
63
66
65
64
63
63
supplied
with J701
supplied with S602
supplied with RV201
not supplied
not supplied
supplied
with S601
not supplied S1
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
61 4-980-199-01 BUTTON (POWER)
*62 1-662-195-11 LED-P BOARD
63 4-951-620-01 SCREW (2.6X8), +BVTP
*64 1-662-197-11 HP BOARD
*65 1-662-196-11 SP-SW BOARD
*66 1-662-193-11 SW-F BOARD
*67 1-662-194-11 LED-F BOARD
*68 1-662-192-11 VOL BOARD
69 3-703-466-00 SPRING (6600)
!S1 1-554-920-11 SWITCH, PUSH (AC POWER)(1 KEY)(POWER)
51 4-980-767-12 PANEL, FRONT
52 4-965-651-01 EMBLEM (MOS)
53 4-979-587-01 EMBLEM (NO.5), SONY
54 X-4946-920-1 KNOB (VOL) ASSY
55 4-980-771-01 KNOB (DIA. 47)
56 4-980-775-01 LENS, LED
57 4-980-774-11 KNOB (F11)
58 4-980-774-01 KNOB (F11)
59 X-4946-944-1 PANEL ASSY, BASE
60 7-685-872-09 SCREW +BVTT 3X8 (S)
Thecomponents identifiedby mark!
or dotted line with mark !are criti-
cal for safety.
Replace only with part number speci-
fied.
(2) FRONT PANEL SECTION

– 21 –
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
101 4-967-961-01 SCREW (3X8)
102 4-967-960-01 SCREW (4X8)
*103 1-665-580-11 SP-TM BOARD
104 4-981-016-11 SCREW (H)
105 3-905-609-11 SCREW (TRANSISTOR)
*106 A-4398-160-A MAIN (B) BOARD, COMPLETE
*107 3-703-244-00 BUSHING (2104), CORD
!108 1-770-019-11 ADAPTOR, CONVERSION PLUG 3P (UK)
109 3-704-515-41 SCREW (BV/RING)
110 1-506-113-00 SHORT PLUG
111 4-947-010-01 SCREW, FEEDER FIXED
*112 4-982-978-21 PANEL, BACK (AEP)
*112 4-982-978-31 PANEL, BACK (UK)
*113 1-662-191-11 INPUT BOARD
*114 A-4398-159-A MAIN (A) BOARD, COMPLETE
!CNP801 1-777-185-11 CORD, POWER
!T1 1-431-295-11 TRANSFORMER, POWER
103
104
101
105
104
101
106
101
101
107 108
101 110
111
101
112
101
114
101
101
113
102
102
101
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
T1 CNP801
UK
109
Thecomponents identifiedbymark!
or dotted line with mark !are criti-
cal for safety.
Replace only with part number speci-
fied.
(3) CHASSIS SECTION

– 22 –
NOTE:
•Due to standardization, replacements in the
parts list may be different from the parts speci-
fied in the diagrams or the components used on
the set.
•-XX and -X mean standardized parts, so they
mayhavesomedifferencefrom theoriginalone.
•RESISTORS
All resistors are in ohms.
METAL: Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F: nonflammable
•Items marked “*” are not stocked since they
are seldom required for routine service.
Some delay should be anticipated when order-
ing these items.
•SEMICONDUCTORS
In each case, u: µ, for example:
uA. . : µA. . uPA. . : µPA. .
uPB. . : µPB. . uPC. . : µPC. .
uPD. . : µPD. .
•CAPACITORS
uF: µF
•COILS
uH: µH
The components identified by mark
!or dotted line with mark !are
critical for safety.
Replace only with part number
specified.
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
*1-662-197-11 HP BOARD
********
< JACK >
J701 1-750-735-11 JACK (LARGE TYPE) (PHONES)
************************************************************
*1-662-191-11 INPUT BOARD
***********
< CAPACITOR >
C101 1-136-165-00 FILM 0.1uF 5% 50V
C102 1-136-165-00 FILM 0.1uF 5% 50V
C103 1-136-165-00 FILM 0.1uF 5% 50V
C104 1-136-165-00 FILM 0.1uF 5% 50V
C105 1-136-165-00 FILM 0.1uF 5% 50V
C106 1-136-165-00 FILM 0.1uF 5% 50V
< CONNECTOR >
CN16 1-564-320-00 PIN, CONNECTOR (B2P-VH) 2P
CN103 1-691-766-11 PLUG (MICRO CONNECTOR) 4P
*CN104 1-564-527-11 PLUG, CONNECTOR 12P
< DIODE >
D101 8-719-987-63 DIODE 1N4148M
D102 8-719-987-63 DIODE 1N4148M
D103 8-719-987-63 DIODE 1N4148M
D104 8-719-987-63 DIODE 1N4148M
D105 8-719-987-63 DIODE 1N4148M
D106 8-719-987-63 DIODE 1N4148M
D107 8-719-987-63 DIODE 1N4148M
D108 8-719-987-63 DIODE 1N4148M
< PIN JACK >
J101 1-568-978-51 JACK 6P (PHONO/TUNER/CD INPUT)
J102 1-568-978-11 JACK 6P (AUX INPUT, TAPE2/MD IN/RECOUT)
*J103 1-573-142-21 JACK, PIN 4P (TAPE1/DAT IN/RECOUT)
< TRANSISTOR >
Q101 8-729-119-78 TRANSISTOR 2SC2785-HFE
Q102 8-729-119-78 TRANSISTOR 2SC2785-HFE
Q103 8-729-119-78 TRANSISTOR 2SC2785-HFE
Q104 8-729-119-78 TRANSISTOR 2SC2785-HFE
Q105 8-729-119-78 TRANSISTOR 2SC2785-HFE
Q106 8-729-119-78 TRANSISTOR 2SC2785-HFE
< RESISTOR >
R101 1-259-500-11 CARBON 1M 5% 1/6W
R102 1-259-500-11 CARBON 1M 5% 1/6W
R103 1-259-500-11 CARBON 1M 5% 1/6W
R104 1-259-428-11 CARBON 1K 5% 1/6W
R105 1-259-500-11 CARBON 1M 5% 1/6W
R106 1-259-428-11 CARBON 1K 5% 1/6W
R107 1-259-500-11 CARBON 1M 5% 1/6W
R108 1-249-210-11 CARBON 1K 5% 1/3W
R109 1-259-444-11 CARBON 4.7K 5% 1/6W
R110 1-259-444-11 CARBON 4.7K 5% 1/6W
R111 1-259-444-11 CARBON 4.7K 5% 1/6W
R112 1-259-444-11 CARBON 4.7K 5% 1/6W
R113 1-259-444-11 CARBON 4.7K 5% 1/6W
R114 1-259-444-11 CARBON 4.7K 5% 1/6W
R151 1-259-500-11 CARBON 1M 5% 1/6W
R152 1-259-500-11 CARBON 1M 5% 1/6W
R153 1-259-500-11 CARBON 1M 5% 1/6W
R154 1-259-428-11 CARBON 1K 5% 1/6W
R155 1-259-500-11 CARBON 1M 5% 1/6W
R156 1-259-428-11 CARBON 1K 5% 1/6W
R157 1-259-500-11 CARBON 1M 5% 1/6W
R158 1-249-210-11 CARBON 1K 5% 1/3W
< RELAY >
RY101 1-515-614-11 RELAY
RY102 1-515-614-11 RELAY
RY103 1-515-614-11 RELAY
RY104 1-515-614-11 RELAY
RY105 1-515-614-11 RELAY
RY106 1-515-614-11 RELAY
RY107 1-515-622-11 RELAY
RY108 1-515-622-11 RELAY
************************************************************
*1-662-194-11 LED-F BOARD
***********
< CONNECTOR >
CNJ601 1-766-796-11 CONNECTOR, BOARD TO BOARD 12P
When indicating parts by reference
number, please include the board.
HP INPUT LED-F SECTION 6
ELECTRICAL PARTS LIST

– 23 –
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
< DIODE >
D601 8-719-313-50 LED SEL6810A-TH12 (PHONO)
D602 8-719-313-50 LED SEL6810A-TH12 (TUNER)
D603 8-719-313-50 LED SEL6810A-TH12 (CD)
D604 8-719-313-50 LED SEL6810A-TH12 (AUX)
D605 8-719-313-50 LED SEL6810A-TH12 (TAPE2/MD)
D606 8-719-313-50 LED SEL6810A-TH12 (TAPE1/DAT)
************************************************************
*1-662-195-11 LED-P BOARD
***********
< DIODE >
D702 8-719-313-48 LED SEL6210S-TH12 (PROTECTON)
< RESISTOR >
R705 1-259-143-21 CARBON 100 5% 1/4W
************************************************************
*A-4398-159-A MAIN (A) BOARD, COMPLETE
************************
< CAPACITOR >
C301 1-102-978-00 CERAMIC 220PF 5% 50V
C302 1-126-059-11 ELECT 10uF 20% 50V
C304 1-106-359-00 MYLAR 4700PF 5% 200V
C305 1-130-341-00 FILM 0.056uF 3% 100V
C306 1-130-971-00 FILM 0.016uF 3% 100V
C307 1-126-059-11 ELECT 10uF 20% 50V
C308 1-126-022-11 ELECT 47uF 20% 25V
C309 1-126-025-11 ELECT 330uF 20% 25V
C310 1-126-023-11 ELECT 100uF 20% 25V
C311 1-102-973-00 CERAMIC 100PF 5% 50V
C312 1-124-721-11 ELECT 10uF 20% 50V
C313 1-104-290-11 POLYSTYRENE 330PF 5% 50V
C315 1-102-230-00 CERAMIC 4PF 0.25PF 500V
C316 1-126-023-11 ELECT 100uF 20% 16V
C317 1-126-023-11 ELECT 100uF 20% 16V
C318 1-126-023-11 ELECT 100uF 20% 16V
C319 1-126-023-11 ELECT 100uF 20% 16V
C320 1-110-393-11 ELECT 100uF 20% 63V
C321 1-113-496-11 POLYSTYRENE 4PF 10% 50V
C322 1-109-871-11 ELECT 2700uF 20% 50V
C351 1-102-978-00 CERAMIC 220PF 5% 50V
C352 1-126-059-11 ELECT 10uF 20% 50V
C354 1-106-359-00 MYLAR 4700PF 5% 200V
C355 1-130-341-00 FILM 0.056uF 3% 100V
C356 1-130-971-00 FILM 0.016uF 3% 100V
C357 1-126-059-11 ELECT 10uF 20% 50V
C358 1-126-022-11 ELECT 47uF 20% 25V
C359 1-126-025-11 ELECT 330uF 20% 25V
C360 1-126-023-11 ELECT 100uF 20% 25V
C361 1-102-973-00 CERAMIC 100PF 5% 50V
C362 1-124-721-11 ELECT 10uF 20% 50V
C363 1-104-290-11 POLYSTYRENE 330PF 5% 50V
C365 1-102-230-00 CERAMIC 4PF 0.25PF 500V
C366 1-126-023-11 ELECT 100uF 20% 16V
C367 1-126-023-11 ELECT 100uF 20% 16V
C368 1-126-023-11 ELECT 100uF 20% 16V
C369 1-126-023-11 ELECT 100uF 20% 16V
C370 1-110-393-11 ELECT 100uF 20% 63V
C371 1-113-496-11 POLYSTYRENE 4PF 10% 50V
C372 1-109-871-11 ELECT 2700uF 20% 50V
< CONNECTOR >
CN301 1-691-767-11 PLUG (MICRO CONNECTOR) 5P
CN302 1-691-765-11 PLUG (MICRO CONNECTOR) 3P
< DIODE >
D301 8-719-310-61 LED SEL1510C-D
D302 8-719-933-88 DIODE HZS16-2L
D303 8-719-933-41 DIODE HZS6C3L
D304 8-719-987-63 DIODE 1N4148M
D305 8-719-987-63 DIODE 1N4148M
D306 8-719-310-61 LED SEL1510C-D
D307 8-719-987-63 DIODE 1N4148M
D308 8-719-987-63 DIODE 1N4148M
D309 8-719-987-63 DIODE 1N4148M
D351 8-719-310-61 LED SEL1510C-D
D352 8-719-933-88 DIODE HZS16-2L
D353 8-719-933-41 DIODE HZS6C3L
D354 8-719-987-63 DIODE 1N4148M
D355 8-719-987-63 DIODE 1N4148M
D356 8-719-310-61 LED SEL1510C-D
D357 8-719-987-63 DIODE 1N4148M
D358 8-719-987-63 DIODE 1N4148M
D359 8-719-987-63 DIODE 1N4148M
< IC >
IC301 8-759-701-25 IC NJM2068D-D
< COIL >
L301 1-428-203-11 COIL, AIR-CORE
L351 1-428-203-11 COIL, AIR-CORE
< TRANSISTOR >
Q301 8-729-354-52 TRANSISTOR 2SC2545
Q302 8-729-354-52 TRANSISTOR 2SC2545
Q303 8-729-281-54 TRANSISTOR 2SC1815-BL
Q304 8-729-620-17 TRANSISTOR 2SC2259-FG
Q305 8-729-201-53 TRANSISTOR 2SA1015-GR
Q306 8-729-201-53 TRANSISTOR 2SA1015-GR
Q307 8-729-201-53 TRANSISTOR 2SA1015-GR
Q308 8-729-021-74 TRANSISTOR 2SA949-OY-TPE6
Q309 8-729-202-67 FET 2SK246-GR3
Q310 8-729-021-73 TRANSISTOR 2SC2229-OY-TPE6
Q311 8-729-281-54 TRANSISTOR 2SC1815-BL
Q312 8-729-281-54 TRANSISTOR 2SC1815-BL
Q351 8-729-354-52 TRANSISTOR 2SC2545
Q352 8-729-354-52 TRANSISTOR 2SC2545
Q353 8-729-201-53 TRANSISTOR 2SA1015-GR
Q354 8-729-620-17 TRANSISTOR 2SC2259-FG
Q355 8-729-201-53 TRANSISTOR 2SA1015-GR
Q356 8-729-201-53 TRANSISTOR 2SA1015-GR
Q357 8-729-201-53 TRANSISTOR 2SA1015-GR
Q358 8-729-021-74 TRANSISTOR 2SA949-OY-TPE6
MAIN (A)LED-PLED-F

– 24 –
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
Q359 8-729-202-67 FET 2SK246-GR3
Q360 8-729-021-73 TRANSISTOR 2SC2229-OY-TPE6
Q361 8-729-281-54 TRANSISTOR 2SC1815-BL
Q362 8-729-281-54 TRANSISTOR 2SC1815-BL
< RESISTOR >
R301 1-259-215-21 CARBON 100K 5% 1/4W
R302 1-249-911-11 CARBON 330 5% 1/4W
R303 1-259-215-21 CARBON 100K 5% 1/4W
R304 1-249-900-11 CARBON 110 1% 1/4W
R305 1-259-161-21 CARBON 560 5% 1/4W
R306 1-259-161-21 CARBON 560 5% 1/4W
R307 1-259-143-21 CARBON 100 5% 1/4W
R308 1-259-191-21 CARBON 10K 5% 1/4W
R309 1-249-844-11 CARBON 56K 1% 1/2W
R310 1-259-320-11 CARBON 4.7K 1% 1/2W
R311 1-259-167-21 CARBON 1K 5% 1/4W
R313 1-249-943-11 CARBON 6.8K 5% 1/4W
R314 1-249-198-11 CARBON 330 5% 1/3W
R315 1-249-198-11 CARBON 330 5% 1/3W
R316 1-249-198-11 CARBON 330 5% 1/3W
R317 1-249-198-11 CARBON 330 5% 1/3W
R318 1-259-167-21 CARBON 1K 5% 1/4W
R319 1-259-151-21 CARBON 220 5% 1/4W
R320 1-259-151-21 CARBON 220 5% 1/4W
R321 1-259-151-21 CARBON 220 5% 1/4W
R322 1-259-215-21 CARBON 100K 5% 1/4W
R323 1-259-179-21 CARBON 3.3K 5% 1/4W
R324 1-259-175-11 CARBON 2.2K 5% 1/4W
R325 1-259-183-11 CARBON 4.7K 5% 1/4W
R326 1-249-490-11 CARBON 27K 5% 1/3W
R327 1-259-151-21 CARBON 220 5% 1/4W
R328 1-259-151-21 CARBON 220 5% 1/4W
!R329 1-249-899-11 CARBON 100 5% 1/4W F
R330 1-247-749-11 CARBON 560 5% 1/2W
R331 1-249-496-11 CARBON 100K 5% 1/3W
R332 1-259-171-21 CARBON 1.5K 5% 1/4W
R333 1-259-167-21 CARBON 1K 5% 1/4W
R334 1-259-239-11 CARBON 1M 5% 1/4W
R335 1-259-143-21 CARBON 100 5% 1/4W
R351 1-259-215-21 CARBON 100K 5% 1/4W
R352 1-249-911-11 CARBON 330 5% 1/4W
R353 1-259-215-21 CARBON 100K 5% 1/4W
R354 1-249-900-11 CARBON 110 1% 1/4W
R355 1-259-161-21 CARBON 560 5% 1/4W
R356 1-259-161-21 CARBON 560 5% 1/4W
R357 1-259-143-21 CARBON 100 5% 1/4W
R358 1-259-191-21 CARBON 10K 5% 1/4W
R359 1-249-844-11 CARBON 56K 1% 1/2W
R360 1-259-320-11 CARBON 4.7K 1% 1/2W
R361 1-259-167-21 CARBON 1K 5% 1/4W
R363 1-249-943-11 CARBON 6.8K 5% 1/4W
R364 1-249-198-11 CARBON 330 5% 1/3W
R365 1-249-198-11 CARBON 330 5% 1/3W
R366 1-249-198-11 CARBON 330 5% 1/3W
R367 1-249-198-11 CARBON 330 5% 1/3W
R368 1-259-167-21 CARBON 1K 5% 1/4W
R369 1-259-151-21 CARBON 220 5% 1/4W
R370 1-259-151-21 CARBON 220 5% 1/4W
R371 1-259-151-21 CARBON 220 5% 1/4W
R372 1-259-215-21 CARBON 100K 5% 1/4W
R373 1-259-179-21 CARBON 3.3K 5% 1/4W
R374 1-259-175-11 CARBON 2.2K 5% 1/4W
R375 1-259-183-11 CARBON 4.7K 5% 1/4W
R376 1-249-490-11 CARBON 27K 5% 1/3W
R377 1-259-151-21 CARBON 220 5% 1/4W
R378 1-259-151-21 CARBON 220 5% 1/4W
!R379 1-249-899-11 CARBON 100 5% 1/4W F
R380 1-247-749-11 CARBON 560 5% 1/2W
R381 1-249-496-11 CARBON 100K 5% 1/3W
R382 1-259-171-21 CARBON 1.5K 5% 1/4W
R383 1-259-167-21 CARBON 1K 5% 1/4W
R384 1-259-239-11 CARBON 1M 5% 1/4W
R385 1-259-143-21 CARBON 100 5% 1/4W
< VARIABLE RESISTOR >
RV301 1-241-762-11 RES, ADJ, CARBON 2.2K
RV351 1-241-762-11 RES, ADJ, CARBON 2.2K
************************************************************
*A-4398-160-A MAIN (B) BOARD, COMPLETE
************************
< CAPACITOR >
C401 1-136-163-00 FILM 0.068uF 5% 50V
C402 1-136-163-00 FILM 0.068uF 5% 50V
C403 1-109-871-11 ELECT 2700uF 20% 50V
C404 1-124-920-11 ELECT 330uF 20% 50V
C405 1-136-163-00 FILM 0.068uF 5% 50V
C406 1-126-923-11 ELECT 220uF 20% 10V
C407 1-136-157-00 FILM 0.022uF 5% 50V
C408 1-126-967-11 ELECT 47uF 20% 16V
C409 1-109-870-11 ELECT 8200uF 20% 50V
C411 1-126-969-11 ELECT 220uF 20% 50V
C412 1-126-972-11 ELECT 1000uF 20% 50V
C413 1-126-960-11 ELECT 1uF 20% 50V
C414 1-104-999-11 MYLAR 0.1uF 10% 200V
C415 1-126-025-11 ELECT 330uF 20% 25V
C416 1-126-967-11 ELECT 47uF 20% 16V
C417 1-126-964-11 ELECT 10uF 20% 50V
C418 1-126-964-11 ELECT 10uF 20% 50V
C419 1-164-077-11 CERAMIC 220PF 10% 50V
C421 1-137-150-11 MYLAR 0.01uF 10% 100V
C422 1-137-150-11 MYLAR 0.01uF 10% 100V
C430 1-126-965-11 ELECT 22uF 20% 50V
C451 1-136-163-00 FILM 0.068uF 5% 50V
MAIN (A) MAIN (B)
The components identified by
mark !or dotted line with
mark !are critical for safety.
Replaceonly with part number
specified.

– 25 –
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
SP-SW
!R402 1-249-393-11 CARBON 10 5% 1/4W F
!R403 1-249-405-11 CARBON 100 5% 1/4W F
!R404 1-249-405-11 CARBON 100 5% 1/4W F
!R405 1-247-745-11 CARBON 330 5% 1/2W F
!R406 1-208-601-11 WIREWOUND 0.1 10% 2W F
!R407 1-208-601-11 WIREWOUND 0.1 10% 2W F
R409 1-259-436-11 CARBON 2.2K 5% 1/6W
R410 1-259-432-11 CARBON 1.5K 5% 1/6W
R411 1-249-162-11 CARBON 10 5% 1/3W
R412 1-259-488-11 CARBON 330K 5% 1/6W
R413 1-259-452-11 CARBON 10K 5% 1/6W
R414 1-259-484-11 CARBON 220K 5% 1/6W
R415 1-259-460-11 CARBON 22K 5% 1/6W
R416 1-259-480-11 CARBON 150K 5% 1/6W
R417 1-259-456-11 CARBON 15K 5% 1/6W
R418 1-259-444-11 CARBON 4.7K 5% 1/6W
R419 1-259-388-11 CARBON 22 5% 1/6W
R420 1-259-468-11 CARBON 47K 5% 1/6W
!R421 1-212-974-00 FUSIBLE 47 5% 1/2W F
R430 1-259-452-11 CARBON 10K 5% 1/6W
R431 1-259-458-11 CARBON 18K 5% 1/6W
!R451 1-249-393-11 CARBON 10 5% 1/4W F
!R452 1-249-393-11 CARBON 10 5% 1/4W F
!R453 1-249-405-11 CARBON 100 5% 1/4W F
!R454 1-249-405-11 CARBON 100 5% 1/4W F
!R455 1-247-745-11 CARBON 330 5% 1/2W F
!R456 1-208-601-11 WIREWOUND 0.1 10% 2W F
!R457 1-208-601-11 WIREWOUND 0.1 10% 2W F
R459 1-259-436-11 CARBON 2.2K 5% 1/6W
R460 1-259-432-11 CARBON 1.5K 5% 1/6W
R461 1-249-162-11 CARBON 10 5% 1/3W
R462 1-259-488-11 CARBON 330K 5% 1/6W
************************************************************
*1-662-196-11 SP-SW BOARD
***********
< CONNECTOR >
CN701 1-564-510-11 PLUG (MICRO CONNECTOR) 6P
CN703 1-564-505-11 PLUG, CONNECTOR 2P
CN704 1-691-765-21 PLUG (MICRO CONNECTOR) 3P
< DIODE >
D701 8-719-987-63 DIODE 1N4148M
< TRANSISTOR >
Q701 8-729-900-63 TRANSISTOR DTA124ES
Q702 8-729-142-36 TRANSISTOR BN1L3Z
< RESISTOR >
R701 1-260-093-11 CARBON 330 5% 1/2W
R702 1-260-093-11 CARBON 330 5% 1/2W
R703 1-260-103-11 CARBON 2.2K 5% 1/2W
C452 1-136-163-00 FILM 0.068uF 5% 50V
C453 1-109-871-11 ELECT 2700uF 20% 50V
C454 1-124-920-11 ELECT 330uF 20% 50V
C459 1-109-870-11 ELECT 8200uF 20% 50V
C465 1-126-025-11 ELECT 330uF 20% 25V
C469 1-164-077-11 CERAMIC 220PF 10% 50V
< CONNECTOR >
CN401 1-691-768-11 PLUG (MICRO CONNECTOR) 6P
CN402 1-691-766-11 PLUG (MICRO CONNECTOR) 4P
CN405 1-691-768-11 PLUG (MICRO CONNECTOR) 6P
CN406 1-564-506-11 PLUG, CONNECTOR 3P
CN407 1-564-506-11 PLUG, CONNECTOR 3P
*CN408 1-564-687-11 PIN, CONNECTOR 3P
*CN403A 1-564-104-00 PIN, CONNECTOR (B3P-VH) 3P
CN404A 1-564-320-00 PIN, CONNECTOR (B2P-VH) 2P
< DIODE >
D403 8-719-024-99 DIODE 11ES2-NTA2B
D404 8-719-024-99 DIODE 11ES2-NTA2B
D405 8-719-024-99 DIODE 11ES2-NTA2B
D406 8-719-024-99 DIODE 11ES2-NTA2B
D407 8-719-987-63 DIODE 1N4148M
D408 8-719-987-63 DIODE 1N4148M
D409 8-719-024-99 DIODE 11ES2-NTA2B
D410 8-719-024-99 DIODE 11ES2-NTA2B
D411 8-719-024-99 DIODE 11ES2-NTA2B
D412 8-719-302-38 DIODE RBV-602-01
< GROUND TERMINAL >
*EPT401 4-924-264-21 TERMINAL, MOUNT
< IC >
IC401 8-759-111-68 IC uPC1237HA
< TRANSISTOR >
Q401 8-729-104-18 TRANSISTOR 2SC3514-Q
Q402 8-729-104-91 TRANSISTOR 2SA1383
Q403 8-729-232-45 FET 2SK1529-Y
Q404 8-729-232-46 FET 2SJ200-Y
Q405 8-729-140-84 TRANSISTOR 2SC1841-PAFAEA
Q407 8-729-140-96 TRANSISTOR 2SD774-34
Q430 8-729-119-76 TRANSISTOR 2SA1175-HFE
Q451 8-729-104-18 TRANSISTOR 2SC3514-Q
Q452 8-729-104-91 TRANSISTOR 2SA1383
Q453 8-729-232-45 FET 2SK1529-Y
Q454 8-729-232-46 FET 2SJ200-Y
Q455 8-729-140-84 TRANSISTOR 2SC1841-PAFAEA
Q406A 8-729-281-54 TRANSISTOR 2SC1815-BL
< RESISTOR >
!R401 1-249-393-11 CARBON 10 5% 1/4W F
The components identified by
mark !or dotted line with
mark !are critical for safety.
Replaceonly with part number
specified.
MAIN (B)

– 26 –
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
TA-F448EB
97G057554-1
Printed in Hungary © 1997.7
Published by General Engineering Dept.
(Shibaura)
Sony Corporation
Home A&V Products Company
9-960-976-11
The components identified by
mark !or dotted line with
mark !are critical for safety.
Replaceonly with part number
specified.
R704 1-260-103-11 CARBON 2.2K 5% 1/2W
< RELAY >
RY701 1-515-622-11 RELAY
< SWITCH >
S701 1-762-655-11 SWITCH, ROTARY SLIDE (SPEAKERS)
************************************************************
*1-665-580-11 SP-TM BOARD
***********
< CONNECTOR >
CN804 1-580-230-11 PIN, CONNECTOR (PC BOARD) 2P
*CN808 1-564-321-21 PIN, CONNECTOR 2P
*CN809 1-565-792-11 PIN, CONNECTOR 2P
< DIODE >
D501 8-719-987-63 DIODE 1N4148M
< FUSE >
!F801 1-532-464-51 FUSE, TIME-LAG (T2.5A/250V)
< FUSE HOLDER >
FH801 1-533-233-11 HOLDER, FUSE
FH802 1-533-233-11 HOLDER, FUSE
< COIL >
L501 1-411-906-11 COIL, AIR-CORE
L551 1-411-906-11 COIL, AIR-CORE
< RESISTOR >
R501 1-249-162-11 CARBON 10 5% 1/3W
R502 1-247-750-11 CARBON 680 5% 1/2W
R551 1-249-162-11 CARBON 10 5% 1/3W
R552 1-247-750-11 CARBON 680 5% 1/2W
R710 1-249-429-11 CARBON 10K 5% 1/4W
< RELAY >
RY501 1-515-920-11 RELAY (24V)
< TERMINAL >
*TM501 1-537-519-11 TERMINAL BOARD (SPEAKER 8P)
(BI WIRE SPEAKERS SYSTEM)
************************************************************
*1-662-193-11 SW-F BOARD
**********
< CAPACITOR >
C601 1-136-165-00 FILM 0.1uF 5% 50V
C602 1-136-165-00 FILM 0.1uF 5% 50V
C603 1-126-926-11 ELECT 1000uF 20% 10V
< CONNECTOR >
CN601 1-691-773-11 PLUG (MICRO CONNECTOR) 11P
CNP601 1-774-936-11 CONNECTOR, BOARD TO BOARD 12P
< TRANSISTOR >
Q601 8-729-119-78 TRANSISTOR 2SC403SP-51
Q602 8-729-900-74 TRANSISTOR DTC143TS
Q603 8-729-119-78 TRANSISTOR 2SC403SP-51
Q604 8-729-900-74 TRANSISTOR DTC143TS
< RESISTOR >
R601 1-260-089-11 CARBON 150 5% 1/2W
R602 1-260-089-11 CARBON 150 5% 1/2W
R603 1-260-095-11 CARBON 470 5% 1/2W
R604 1-259-452-11 CARBON 10K 5% 1/6W
R605 1-259-452-11 CARBON 10K 5% 1/6W
< SWITCH >
S601 1-762-656-11 SWITCH, ROTARY (TAPE MONITOR)
S602 1-692-974-11 SWITCH, ROTARY (INPUT SELECTOR)
************************************************************
*1-662-192-11 VOL BOARD
*********
< CONNECTOR >
CN201 1-691-770-11 PLUG (MICRO CONNECTOR) 8P
< RESISTOR >
R201 1-259-476-11 CARBON 100K 5% 1/6W
R251 1-259-476-11 CARBON 100K 5% 1/6W
< VARIABLE RESISTOR >
RV201 1-225-228-11 RES, VAR, CARBON 120K/120K (VOLUME)
************************************************************
MISCELLANEOUS
***************
!108 1-770-019-11 ADAPTOR, CONVERSION PLUG 3P (UK)
110 1-506-113-00 SHORT PLUG
!CNP801 1-777-185-11 CORD, POWER
!S1 1-554-920-11 SWITCH, PUSH (AC POWER) (1 KEY)
(POWER)
!T1 1-431-295-11 TRANSFORMER, POWER
************************************************************
ACCESSORIES & PACKING MATERIALS
********************************
3-860-500-11 MANUAL, INSTRUCTION (ENGLISH, FRENCH,
SWEDISH, ITALIAN, PORTUGUESE, GERMAN)
SP-SW SP-TM SW-F VOL