Sony TA-FA5ES User manual

TA-FASES/FA7ES
SERVICE MANUAL
Photo: TA-FA7ES (Black)
AEP Model
System
SPECIFICATIONS
Power Amplifier: Pure-complementary SEPP MOS
FET power amplifier with all stages directly coupled
Preamplifier: Low-noise, high-gain equalizer amplifier
Power section: Large-capacity power supply advanced
STD
Rated output
Speakers impedance
Output bandwidth (8 ohms)
Dynamic headroom
Total harmonic distortion
Damping factor
Intermodulation (IM)
distortion (60 Hz:7 kHz=4:1)
Throughrate
Residual noise
Equalizer deviation
Frequency response
S/N
TA-FA7ES
4 ohms, 150 W + 150 W (DIN 0.7%)
8 ohms, 100 W + 100 W (DIN 0.7%)
TA-FA5ES
4 ohms, 135 W + 135 W (DIN 0.7%)
8 ohms, 90 W + 90 W (DIN 0.7%)
4 to 16 ohms ;
10 Hz to 100 kHz (at 40 W output, and
high-frequency distortion rate of
0.08%)
at 4 ohms: TA-FA7ES 2 dB
TA-FASES 3 dB
at 8 ohms: TA-FA7ES 1.2 dB
TA-FA5ES 2 dB
0.005% (at 8 ohms, 10 W output)
100 (8 ohms, 1 kHz)
0.005% (8 ohms)
125 V/p sec, 250 V/U sec (Inside)
Less than 115 1. V (network A)
PHONO MM: 20 Hz to 20 kHz,
+0.2 dB
TUNER, CD, AUX, TAPE 1, 2, 3: 2 Hz
to 100 kHz *$dB
PHONO MC: TA-FA7ES 78dB
(A Fil, 0.5 mV)
TA-FASES 76 dB
(A Fil, 0.5 mV)
MM: 87 dB (A Fil, 5 mV)
TUNER, CD, AUX, TAPE, 2, 3:
105 dB
Inputs
Input sensitivity and
impedance
Maximum input capability
(1 kHz)
Outputs
Output level / impedance
Tone controls
General
Power requirements
Power consumption
PHONO MC: 0.25 mV, 100 ohms
MM: 2.5 mV, 50 kilohms
TUNER, CD, AUX, TAPE 1, 2, 3:
150 mV, 30 kilohms
PHONO MC: 9 mV
MM: 150 mV
REC OUT 1, 2,3: 150 mV,1 kilohms
PHONES: 10 mW (at 8 ohms)
BASS (100 Hz): +7 dB
TREBLE (10 kHz): +6 dB
220 - 230 V AC, 50/60 Hz
TA-FA7ES: 330 W
TA-FA5ES: 300 W
Dimensions (approx.) (w/h/d) 430 x 175 x 450 mm
Mass (approx.)
Supplied accessories
(17 x 7x 173/, inches)
incl. projecting parts and controls
TA-FA7ES: 19.8 kg (43 lb 6 oz)
TA-FASES: 17.5 kg (38 Ib 10 oz)
Remote commander (remote)
RM-S703 (1)
Sony batteries SUM-3(NS) (2)
Design and specifications are subject to change without
notice.
INTEGRATED STEREO AMPLIFIER
SON
Y.

TABLE OF CONTENTS
Section Title Page
Specifications :++++rrst erste eee e cette eee enone i
1. GENERAL
Location of Controls ee 3
2. DISASSEMBLY o:536.4etewiaiaenseiieds 4
3. ELECTRICAL ADJUSTMENT =--:-:-------> 7
4. DIAGRAMS
4-1. IC Pin Function Description -++++++ss+eeeees 8
4-2. Schematic Diagram 7 ] 1
4-3. Printed Wiring Boards
- ~ MAIN Section — ssreeress 15
4-4. Printed Wiring Boards
~ CONTROL Section- <---> 19
5. EXPLODED VIEWS ---eece reece eee erees 23
6. ELECTRICAL PARTS LIST -------++-:: 27
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK A OR DOTTED
LINE WITH MARK A\ 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.

SECTION 1
GENERAL
This
section
is
extracted
from
instruction manual.
e Location of Controls
Front Panel Descriptions
INPUT SELECTOR
indicator
ATTENUATOR (volume) control
SOURCE DIRECT indicator
POWER switch
INPUT SELECTOR control
Remote control sensor p le, ae
PHONES
jack
—_—___
=.
Ta:
=~
2
MUTING
indicator
SPEAKERS switch
SOURCE DIRECT button
TONE controls
(BASS/TREBLE)
MUTING button
BALANCE control
REC OUT SELECTOR switch
REC OUT switch
Rear Panel Descriptions
PHONO
CARTRIDGE MC/MM
CD
[4] AUX INPUT (TA-FAZES only)
TAPE3
[6] PRE OUT
SPEAKERS A/B
Mains lead
{9] TAPE1/DAT
TAPE2/MD
AUX(UNBALANCED)
TUNER
rh (earth)
AUX(BALANCED)
(TA-FA7ES only)

SECTION 2
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
FRONT PANEL, SIDE PANEL
@ four screws (M3 x 8)
@ four screws (M3 X 8)
@ side panel
@ top board
@ four screws @
(M3 X 6)
® two screws
(+K3
X
5)
@
side
panel
@ front panel
® three screws
V3 xX
ce @ bottom
board 8
@ two screws @ two screws
(3 x 8) (3 X 8)
PRO LED, MEDAMA, HP, FUNCTION LED, MUT LED, REC OUT BOARDS
@
PRO
LED
board
©
CN806
@ four rivetes
(DIA.
3.5)
SS
©
CN904
Ee
NGG
tube
(B)
We
S
3
©
cnsos
Lak
;
@
MEDAMA
board
Se
a
08
A
4
knob
(POWER)
=>
=
Dp
Pp
heet
(B)
a
4)
eit
a
<<
SK
a
Oss +o knob R
@ three rivetes sheet (C)
(DIA. 3.5) oN ae
(DIA. 3.5)
@ REC OUT board
@ two screws
(3 X 8)
tube (A)
knob VB (black)
knob VG (gold)
sheet (D)
—4—

AC SW, TONE CONTROL, VOL BOARDS
© CN310 N
@ TONE CONTROL board
© CN807
® CN4
@ AC SW board
@ rivet (DIA. 3.5)
i
sub chassis ae el
DIS Wet?
x
1) - ik | i
1)
two screws—m¢ey™
(3 x 8)
@ four nuts
@ three nuts
@ three screws
(3 x 8) B
@
washer
@
six
screws
(3
X
8)
@ button @ six screws
(3 X 8)
PS, PS JUMPER BOARDS AND POWER TRANSFORMER
@
power
transformer
704
@ six screws
(4 x 8)
@ four screws
(4 x 8)
@ N4, TYPE2
@ holder (C)
heat sink
@ PS board (included PS
JUMPER board)
(4
x 8)
@ CN502
@ two screws
—5-— (4 X 8)

OUT LET, SP-TM, JUMPER, INPUT BOARDS
back panel
@ eleven screws
a (3 x 8)
SS
AR
@ SP-TM board
@ OUT LET board
@ screw
(BV3 X 8)
@ terminal
@ fourteen screws
(3 x 8)
(TA-FA7ES)
@ four screws (3 X 8)
@ screw (BV3 X 8)
@ terminal
@ fourteen screws
(3 X 8)
PRO, MAIN. A, PRE PS, BALANCE BOARDS AND HOLDER (P)
@
PRO
board
@
two
screws
®
six
collar
screws
©
four
screws
(3
X
8)
(3
X
8)
9
|
@
MAIN.
A
board
Ss
;
@
holder
(P)
@ six screws
(3 X 8)
@ BALANCE board
(TA-FA7ES)
®© two screws
(3 X 8)
@ chassis (S)

SECTION 3
ELECTRICAL ADJUSTMENT
Note: Adjustment should be performed 5 minutes later, after the power
switch is on.
Bias Adjustment
Setting:
ATTENUATOR (Volume) control: minimum
Input signal: No signal input
Procedure:
Adjust RT501 (L-CH) and RTS551 (R-CH) for 45 mV reading on the
VTVM.
Adjustment Location: MAIN B-L, B-R BOARD
VTVM
(0.3 V DC range) VTVM
(0.3 V DC range)
MAIN B-L BOARD (Component Side) MAIN B-R BOARD (Component Side)

SECTION 4
DIAGRAMS
4-1. IC PIN FUNCTION DESCRIPTION
IC901 TMP47C200BN-H327 (SYSTEM CONTROL)
Pin No. Pin Name YO Function
1 RCL 0
eles Serial data of EEPROM (X24CO1P)
2 RDT VO | Data
3 VDW O Down
VR motor control signal (Active: H, Stop: L-L, Brake: H-H)
4 VUP O Up
5 CD | o | Function relay select signal output (ON: L)
6 MUT OL Mute control signal output when switching (Mute: H)
7 AUX O Function relay select signal output (ON: L)
8 T3 O Function relay select signal output (ON: L)
9 T2 O Function relay select signal output (ON: L)
O
_ _ Coad Nmle | oO
n ra)
—
_ 7a)
BRIG
n
=
w
a
WwW
SW1
mn S
Ta)
=
>
Function relay select signal output (ON: L)
Relativity position detection signal of rotary switch
(One of them terminal: H, the other terminal: L)
Direction from SW5 to SWO, TUNER — CD — AUX ~
TAPE2 — TAPE] — PHONO — TUNER — ¢eeees
18 TUNER
5 és ome Function LED drive signal (ON: L)
21 GND — GND terminal
22 TAPE1 O
23 TAPE2 O Function LED drive signal (ON: L)
24 TAPE3 O
29 — O Not used (Connected to GND)
26 — If Not used (Connected to GND)
27 — if Not used (Connected to GND)
a r
28 — It Not used (Connected to GND)
29 — I Not used (Connected to GND)
—§$<—$<—$—$* ==
30 TEST — Test terminal (Open)
31 XIN = Oscil
scillation signal 8.19 MHz
33 RESET ] Reset signal (Reset: L)
34 HOLD I Cancellation of hold mode signal (Start: H)
35 TUNER O Function relay select signal output (ON: L)
36 PHONO oe Function relay select signal output (ON: L)
37 SIRCS I SIRCS signal (Active: L)
38 — O Not used (Connected to GND)
39 | — O Not used (Connected to GND)
i 40 — O Not used (Connected to GND)
4] —_ oO Model mode switch signal (Connected to GND)
42 VDD | — | POWER supply (+5 V) terminal

e Circuit Boards Location
SP TM board
PS JUMPER board
OUT LET board
MAIN B-L board
JUMPER board
AC SW board
BALANCE board
(TA-FA7ES)
TONE CONTROL board
MAIN B-R board
PRO board
INPUT board
FUNCTION LED board
PRO LED board
yy
Wy
XS
\Y/ p.
=
nwa
MEDAMA board
MAIN. A board
HP board
PRE PS board
PS board
REC
OUT
board
VOL
board
MUT LED board

e IC Block Diagrams
PRO board
IC601 «PC1237HA
OVER LOA BET
OFFSET SET
LATCH
AUTORESET
TONE. CONTROL board
IC903 X24C01P-S
Gp DATA REGISTER
ABARESS
COUNTER
E2 PROM
32
IC904 BA6208
NC
INPUT!
INPUT2
NC
GND
VCC
OUTPUT2
OUTPUT!
NC
=16—