Sony TA-E88B - User Manual

TA-E88
(Panel:
Silver)
AEP Medel
TA-E88B (Panel: Black).
AEP
Medel
UK
Medel
SPECIFICATIONS
GENERAL
Power
Requirements:
0dB=0.775 V |
240 V ac, 50/60 Hz (UK)
Outputs:
220
V
ac,
50/60
Hz
(AEP)
a
=
Power
|
Voltage
Impedance
Consumption:
22
W
REC
OUT
1,2
|
150
mV
(—14.5
dB)
(max.
15
V)
1kQ
Dimensions: Approx. 480 (w) x 80 (h) x 370 (d) mm OUTPUT 1,2 1.5 V (5.5 dB) (max. 15 V) 100 2
19
(w)
x
3.34
(h)
x
14
x
(d)
inches
Including
projecting
parts
and
controls
Approx.
9.4
kg,
20
Ib
12
oz
(net)
9.7
kg,
21
Ib
7
oz
(with
shipping
carton)
Harmonic Distortion: Less than 0.002 % at 10 V output
IM Distortion: Less than 0.002 % at 10 V output
(6O0Hz : 7kHz=4: 1)
Weight:
Frequency Response: PHONO 1,2 RIAA equalization curve +0.2 dB
TUNER, AUX 0
' = +
TAPE 1,2 ) de — 500 kHz ty dB
Filters: LOW 12 dB/oct. below 15 Hz
Less than 6 nV (weighting network A, IHF with
ATTENUATOR set to min imum,
FILTERs to OFF}
Residual Noise:
AMPLIFIER SECTION
Inputs:
Rae
|
.
Maximum
input
S/N
(weighting
network,
I
|
Sensitivity
mpedance
Capacitance
capability
(1
kHz)
|
input
level)
|
PHONO
1
2.5
mV
(—50
dB)
50
kQ
100
pF
250
mV
(—10
dB)
88
dB
{A,
2.5
mV)
Sn
at
se
i
ea
ae
Pee
ee
Ones
oh
eee
eee
i
ein
elle
ee
er
er
eg
2
|
HEAD
AMP
0.125
mV
(—76
dB)
252:/1002
-
12.5
mV
(—36
dB)
80
dB
(A,
0.2
mV)
10 kQ—-100 k2j100 pF—S00 pel
HON
Vv
{+
i
—
PHONO
2
2.5
mV
{(—50
dB)
(10
k®
steps)
|
(100
pF
steps)
250
mV
{-10
dB)
88
dB
(A,
2.5
mV)
|.
—--~.~--}
---
ae
no
Sani
a)
kar
ated
td
cies
hatchet
Lo
os
a
eesti
vale
>
marae
oie
cs
ae
ad
Se
ee
wa
a
we
HEAD
AMP
0.125
mV
(—76
48)
|
2522/1002
-
/12.5
mV
(—36
dB)
80
dB
(A,
0.2
mV)
TUNER, AUX
TAPE
1.2
150
mV
(—14.5
dB)
50
kQ
_
_
105
dB
(A,
150
mV)
SAFETY-RELATED
COMPONENT.
WARNING
COMPONENTS
IDENTIFIED
BY
SHADING.
AND
A
MARK
ON.
THE
SCHEMATIC
DIAGRAMS,
EXPLODED
VIEWS
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
PUBLISHED
BY
SONY.

Summary

Specifications

Output Specifications

Amplifier Section Inputs

Sensitivity, impedance, and maximum input capability for amplifier inputs.

Section 1 Outline

Block Diagram

A high-level schematic showing the interconnections of the unit's main sections.

Circuit Description

Phono Input Circuits

Explanation of the TA-E88/E88B's two phono input stages and impedance selection.

Equalizer Amplifier

Details on the phono equalizer amplifier stage, including FET and cascode features.

Output Amplifier

Description of the output amplifier's capability to drive power amplifiers.

Head Amplifier

Description of the head amplifier's design and operation for MC cartridges.

Buffer Amplifier

Power Supply

Details on the independent power supplies for left and right channels.

Relay Drive Amplifier

Overall Amplifier Description

Overall Amplifier Stages

Parts Information

Section 2 Disassembly

Case Removal

Procedures for removing the main unit's case.

Panel Removal

Procedures for removing the front panel of the unit.

Bottom Plate Removal

Circuit Board Checking

Section 3 Adjustments

Phono EQ Amp Offset Adjustment

Procedure to adjust the offset voltage for the phono equalizer amplifier.

Output Amp Offset Adjustment

Buffer Amp Offset Adjustment

Muting Time Check

Section 5 Exploded Views

Section 6 Electrical Parts List

Semiconductors

Capacitors

Resistors

List of resistors used in the TA-E88/E88B.

Switches

Transformers

Sony TA-E88B Specifications

General

Channels	2
Total Harmonic Distortion (THD)	0.003%
Signal-to-Noise Ratio (MM)	80 dB
Input Sensitivity (MM)	2.5 mV
Input Sensitivity (line)	150 mV
Output Voltage (line)	1 V
Type	Preamplifier
Input Impedance	47 kΩ
Output Impedance	1kOhm
Dimensions	430 x 80 x 365mm