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Sony TC-388-4 - User Manual

Sony TC-388-4
36 pages
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Power
Requirements:
Power
Consumption:
Tape
Speed:
Recording
Time:
Reels:
Recording
System:
Frequency
Response:
Distortion:
SPECIFICATIONS
120V
AC,
60
Hz
(USA
Model)
120V
AC,
60
Hz
(100,
110,
127,
220,
240
V
AC,
50
Hz
adjustable
by
the
Sony
personnel)
(PX
Model)
40
W
(USA
Model)
32
W
(PX
Model)
19
cm/s
(7/2
ips),
9.5
cm/s
(3%
ips)
45
min.
at
19
cm/s
(7
ips)
quadraphonic
recording
with
1,800
ft
tape
17.8
cm
(7
inches)
or
smaller
4-track
quadraphonic,
stereo
and
mono
system
With
Sony
SLH
tape
20
~
30,000
Hz
at
19
cm/s
(7/2
ips)
20
~
23,000
Hz
(+3
dB)
at
19
cm/s
(7/2
ips)
30
~
19,000
Hz
at
9.5
cm/s
(3%
ips)
With
standard
tape
20
~
25,000
Hz
at
19
cm/s
(7'/2
ips}
30
~
17,000
Hz
at
9.5
cm/s
(3%
ips)
1.2%
Wow
and
Flutter:
S/N
Ratio:
Inputs:
Outputs:
Dimentions:
Weight:
0.09
%
at
19
cm/s
(7
ips)
0.12%
at
9.5
cm/s
(35/4
ips)
55
dB
with
Sony
SLH
tape
Microphone
inputs
...........:
4
Sensitivity
0.2
mV
(—72
dB)
Accept
low
impedance
microphones
Line
inputs
2.0...
eee
40
Sensitivity
0.06
V
(—22
dB)
Impedance
100
kQ
Line
OUTPUTS
..........
eee
4
Output
level
0.775
V
(0
dB)
at
load
impedance
100
KQ
with
line
output
volume
control
set
to
MAX
Suitable
load
impedance
higher
than
10kQ2
Headphone
outputs...........
2
Accept
an
822
stereo
headphones
422
(w)
x
505
(h)
x
220
(d)
mm
16°78
(w)
x
197
(h)
x
87/4
(d)
inches
14.5
kg
(31
Ib
14
oz)
SERVICE
MANUAL
Question and Answer IconNeed help?

Do you have a question about the Sony TC-388-4 and is the answer not in the manual?

Summary

OUTLINE

PAN POT Operation

Explanation of the Panoramic Potentiometer's function.

MUTING;PAUSE Lever Function

How to operate the MUTING/PAUSE lever for tape control.

Block Diagram Overview

Visual representation of the unit's signal flow and architecture.

External View and Controls

Identification of external controls and physical features.

Internal Component Layout

Identification of internal components and circuit boards.

DISASSEMBLY

Amplifier Panel Removal

Procedure for removing the amplifier panel.

Reel Panel and Head Cover Removal

Steps for detaching the reel panel and head cover.

Cabinet Disassembly

Procedure for removing the main external cabinet.

ADJUSTMENTS

Mechanical Adjustments

Procedures for mechanical tuning and calibration of the tape deck.

Electrical Adjustments

Procedures for electrical tuning and calibration of audio circuits.

DIAGRAMS

Schematic Diagram

Detailed electrical circuit diagrams for all unit sections.

Mounting Diagrams

Diagrams showing component placement on circuit boards.

Level Diagrams

Diagrams illustrating signal levels at various points in the circuit.

EXPLODED VIEWS

Exploded View 1

Diagram showing external and front panel component layout.

Exploded View 2

Diagram showing reel table and mechanical part layout.

Exploded View 3

Diagram showing pause and idler mechanism component layout.

Exploded View 4

Diagram showing head assembly and pinch roller layout.

Exploded View 5

Diagram showing circuit boards, switches, and jacks layout.

PARTS LIST

Complete Circuit Boards

List of part numbers for complete circuit boards.

Semiconductors (Transistors, Diodes, ICs)

List of transistors, diodes, and ICs with their part numbers.

Capacitors

List of capacitors with part numbers, values, and types.

Coils

List of coils with part numbers and types.

Transformers

List of transformers with part numbers and specifications.

Resistors

List of resistors with part numbers and values.

Switches

List of switches with part numbers and types.

Jacks

List of input/output jacks with part numbers.

Miscellaneous Parts

List of miscellaneous parts like connectors and fuses.

Included Accessories

List of included accessories like reels, manuals, and cleaning kits.

HARDWARE

Screws

List of screws with part numbers and types.

Washers

List of washers with part numbers and sizes.

Retaining Rings

List of retaining rings (E-washers) with part numbers.

Hardware Nomenclature

Explanation of screw types and hardware identification.

Summary

OUTLINE

PAN POT Operation

Explanation of the Panoramic Potentiometer's function.

MUTING;PAUSE Lever Function

How to operate the MUTING/PAUSE lever for tape control.

Block Diagram Overview

Visual representation of the unit's signal flow and architecture.

External View and Controls

Identification of external controls and physical features.

Internal Component Layout

Identification of internal components and circuit boards.

DISASSEMBLY

Amplifier Panel Removal

Procedure for removing the amplifier panel.

Reel Panel and Head Cover Removal

Steps for detaching the reel panel and head cover.

Cabinet Disassembly

Procedure for removing the main external cabinet.

ADJUSTMENTS

Mechanical Adjustments

Procedures for mechanical tuning and calibration of the tape deck.

Electrical Adjustments

Procedures for electrical tuning and calibration of audio circuits.

DIAGRAMS

Schematic Diagram

Detailed electrical circuit diagrams for all unit sections.

Mounting Diagrams

Diagrams showing component placement on circuit boards.

Level Diagrams

Diagrams illustrating signal levels at various points in the circuit.

EXPLODED VIEWS

Exploded View 1

Diagram showing external and front panel component layout.

Exploded View 2

Diagram showing reel table and mechanical part layout.

Exploded View 3

Diagram showing pause and idler mechanism component layout.

Exploded View 4

Diagram showing head assembly and pinch roller layout.

Exploded View 5

Diagram showing circuit boards, switches, and jacks layout.

PARTS LIST

Complete Circuit Boards

List of part numbers for complete circuit boards.

Semiconductors (Transistors, Diodes, ICs)

List of transistors, diodes, and ICs with their part numbers.

Capacitors

List of capacitors with part numbers, values, and types.

Coils

List of coils with part numbers and types.

Transformers

List of transformers with part numbers and specifications.

Resistors

List of resistors with part numbers and values.

Switches

List of switches with part numbers and types.

Jacks

List of input/output jacks with part numbers.

Miscellaneous Parts

List of miscellaneous parts like connectors and fuses.

Included Accessories

List of included accessories like reels, manuals, and cleaning kits.

HARDWARE

Screws

List of screws with part numbers and types.

Washers

List of washers with part numbers and sizes.

Retaining Rings

List of retaining rings (E-washers) with part numbers.

Hardware Nomenclature

Explanation of screw types and hardware identification.

Sony TC-388-4 Specifications

General IconGeneral
Signal-to-Noise Ratio55dB
Reel Size7-inch
Tape Speed3.75 / 7.5 ips
Heads3
Frequency Response30Hz to 22kHz at 7½ ips
InputsLine, Microphone
OutputsLine output, headphone output
SemiconductorsTransistors, Diodes
Output0.775V
Type4-track reel-to-reel tape deck

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