Technics RS-X933

Dolby NR-Equipped
Stereo Double Cassette Deck
DC) [eousy -c wa]
SPECIFICATIONS
Ml CASSETTE DECK SECTION
Deck system Stereo cassette deck
Track system 4-track, 2-channel
Heads
(tape deck A) Rec/play Permalloy head
Erasing Double-gap ferrite head
(tape deck B) play Permailoy head
Motors
(tape deck A) Capstanireel table drive © DC servo motor
(tape deck B) Capstan/reel table drive OC servo motor
Recording system AC bias
Bias frequency 80 kHz
Erasing system AC erase
Tape speed 4.8 cmisec. (1-7/8 ips)
Frequency response (w/o Dolby NR)
NORMAL 30 Hz~16 kHz
40 Hz~15 kHz (DIN)
cro, 30 Hz~16 kHz
40 Hz~15 kHz (DIN)
METAL 30 Hz~18 kHz
40 Hz~17 kHz (DIN)
SIN
(signal
fevel
=
max
recording
level,
CrO,
type
tape)
Dolby C NR on 74 dB (CCIR)
Dolby B NR on 66 dB (CCIR)
Dolby NR off 56 dB (A weighted)
Technics
Service
Manual
ORDER NO. AD8904094C8
Cassette Deck
RS-X933
Color
(K)... Black Type
Area
Country
(E/E5) | Continental Europe. | tk) |
(EB) | Great Britain. | (kK)
(K)
(K)
foo [esas |
(West Germany).
| (eo) | Thi ")
K
(GC) Third Region | Kk) |
Wow and flutter
Fast forward and rewind times
Approx. 110 seconds with C-60 cassette tape
Input sensitivity and impedance
0.1 % (WRMS)
LINE ; 60 mV/47 kQ
Output voltage and impedance
LINE 400 mV/800 Q
M@ GENERAL
Power
consumption
15
W
Power supply AC 50/60 Hz 220V
((EG) area only)
Dimensions (W x H x D) 360 x 129 x 270 mm
(14-3/16"" x 5-2/32”' x 10-5/8’’)
Weight
For [EG] area. 4. Okg (8.8 Ib.)
For others. 3, 5kg (7.7 |b.)
Note:
Specifications are subject to change without notice.
Weight and dimensions are approximate.
* Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.
“Dolby” and the double-D symbol are trade marks of
Dolby Laboratories Licensing Corporation.
Matsushita Electric Industrial Co., Ltd.
Central P.O. Box 288, Osaka 53(-91, Japan

Technics RS-X933 Specifications

General

Type	Cassette Deck
Track System	4-Track, 2-Channel Stereo
Tape Speed	4.76 cm/s
Number of Heads	3
Motor	DC servo motor
Tape Type	Normal, Chrome, Metal
Heads	Erase, Record, Playback
Frequency Response	20Hz to 17kHz (Metal tape)
Input	Line In
Output	Line Out

Summary

SPECIFICATIONS

CASSETTE DECK SECTION

Details specifications for deck operation, heads, motors, and frequency response.

GENERAL SPECIFICATIONS

Outlines power, dimensions, and weight for the cassette deck.

LOCATION OF CONTROLS

FRONT PANEL OPERATING CONTROLS

Explains the function of each control and indicator on the cassette deck's front panel.

OPERATION PANEL CONTROLS

TAPE DECK AB BUTTONS AND INDICATORS

Describes the function of each button, indicator, and holder on the cassette deck's operation panel.

CONNECTION DIAGRAMS

STEREO AND L-TYPE CABLE CONNECTIONS

Illustrates connecting stereo and L-type cables for various audio components.

POWER SUPPLY CONNECTION

AC CABLE AND OUTLET GUIDELINES

Provides details on connecting AC power cords and information about AC outlet types on components.

DISASSEMBLY INSTRUCTIONS

CABINET AND FRONT PANEL REMOVAL

Step-by-step guide for removing the external cabinet and front panel components.

INTERNAL DISASSEMBLY PROCEDURES

PCB AND MECHANISM UNIT REMOVAL

Instructions for disassembling PCBs, mechanism units, and eject/tape counter components.

POWER SUPPLY JIG DETAILS

JIG LOCATION, SCHEMATICS, AND CONNECTION

Covers physical layout, schematic, parts list, and connection guide for the power supply jig.

MEASUREMENT AND ADJUSTMENT OVERVIEW

TEST SETUP AND ADJUSTMENT POINTS

Outlines test conditions, instruments, test tapes, and key adjustment points on the main P.C.B.

SPECIFIC ADJUSTMENT PROCEDURES

HEAD AZIMUTH, TAPE SPEED, AND GAIN ADJUSTMENTS

Detailed steps for adjusting head azimuth, tape speed, playback gain, and overall gain for both decks.

IC AND TRANSISTOR TERMINAL FUNCTIONS

MICROCOMPUTER (IC901) AND OTHER TERMINAL DATA

Describes pin functions for the microcomputer IC901 and lists terminal functions for other ICs.

PRINTED CIRCUIT BOARD LAYOUTS

MAJOR P.C.B. DIAGRAMS

Visual diagrams showing layout and component placement for various printed circuit boards.

SCHEMATIC CIRCUIT DIAGRAMS

CIRCUIT SCHEMATICS FOR MAJOR SECTIONS

Detailed schematic diagrams illustrating electronic circuits for main unit, mechanisms, power supply, and controls.

COMPONENT TERMINAL GUIDES

IC, TRANSISTOR, AND DIODE PIN FUNCTIONS

Comprehensive guide to terminal functions of integrated circuits, transistors, and diodes used in the unit.

SYSTEM BLOCK DIAGRAM

FUNCTIONAL BLOCKS AND SIGNAL FLOW

Illustrates overall system architecture, showing major functional blocks and signal paths.

WIRING CONNECTION DIAGRAMS

PCB INTERCONNECTION LAYOUTS

Shows wiring and connection diagrams between various printed circuit boards and external components.

COMPONENT LISTINGS

RESISTOR AND CAPACITOR PART NUMBERING SYSTEMS

Explains numbering systems for resistors and capacitors, including type, wattage, tolerance, and voltage.

REPLACEMENT PARTS LIST

MAJOR COMPONENT REPLACEMENT PARTS

Lists replacement part numbers for integrated circuits, transistors, diodes, coils, connectors, and other key components.

MECHANICAL PARTS LOCATION - DECK A

FRONT VIEW MECHANICAL COMPONENTS

Illustrates location and part numbers for mechanical components in Deck A, front view.

MECHANICAL PARTS LOCATION - DECK A

REAR VIEW MECHANICAL COMPONENTS

Shows location and part numbers for mechanical components in Deck A, rear view.

MECHANICAL PARTS LOCATION - DECK B

FRONT VIEW MECHANICAL COMPONENTS

Illustrates location and part numbers for mechanical components in Deck B, front view.

MECHANICAL PARTS LOCATION - DECK B

REAR VIEW MECHANICAL COMPONENTS

Shows location and part numbers for mechanical components in Deck B, rear view.

CABINET PARTS LOCATION

CABINET AND HOUSING COMPONENTS

Identifies location and part numbers for cabinet components, including screws, panels, and covers.