Panasonic RX-DT505 Service Manual

ervice M
Portable Stereo CD System
COMPACT
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DIGITAL AUDIO
ORDER NO. AD9204111C2
anual
Radio Cassette
RX-DT505
Colour
CK). serene Ac Black Type
Areas
Suffix for
Model No. Area Colour
(EB) Great Britain
Europe and
(Ee) Germany
TAPE DECK: RX-FD55 MECHANISM SERIES (AR300)
TRAVERSE DECK: RX-DT55 MECHANISM SERIES (SODD110)
m@ SPECIFICATIONS
General:
Power Requirement:
Power Consumption:
Power Output:
Speaker:
Input:
Outputs:
Dimensions:
Weight:
Disc Player Section:
Sampling Frequency:
D-A Conversion:
Beam Source:
No. of Channels:
Frequency Range:
Wow and Flutter:
D/A converter:
AC; (EB)...240 V, 50 Hz
(EG)...220 V, 50 Hz
Battery; 15 V (10 R20/LR20, UM-1
batteries)
Memory Back-up for Computer/
Clock; 6 V (4 R6/LR6, UM-3
batteries)
43 W
50 W...PMPO
Woofer; 10 cm PM Dynamic speaker
2.79
Tweeter; 2 cm Ceramic speaker
MIX MIC; 5 mV/200~600Q, @3.5
HEADPHONES; 32Q, 23.5
CD OUT; 1 V(CD 0 dB)
680 (W) x 174 (H) x 263 (D) mm
6.6 kg without batteries
44.1 kHz
16-bit linear
Semiconductor laser
(wavelength 780 nm)
2 channels, stereo
20~20,000 Hz (+ 1/—2 dB)
Less than possible measurement data
MASH (1 BIT)
Notes:
Radio Section:
Frequency Range: FM; 87.5~108 MHz
LW; 144~288 kHz
MW; 522~1611 kHz
Intermediate Frequency: FM; 10.7 MHz
AM (LW/MW); 459 kHz
FM; 14dByuV
MW; 35 dB/m/0.5 mW output
LW; 40 dB/m/0.5 mW output
Sensitivity:
Tape Deck Section:
Frequency Range: 30~ 16,000 Hz (with normal tape)
30~ 17,000 Hz (with CrO:z tape)
Recording System: AC bias, AC erase (Deck 2)
Tape Speed: 4.8cm/s
Monitor System: Variable sound monitor
Track System: 4-track 2-channel stereo recording and
playback
1. Weights and dimensions shown are approximate.
2. Design and specifications are subject to change without notice.
Panasonic

Panasonic RX-DT505 Specifications

General

Brand	Panasonic
Model	RX-DT505
Speaker System	2-way
Number of Speakers	2
Cassette Deck	Yes
Frequency Response	40 Hz - 20 kHz
Signal-to-Noise Ratio	70 dB
Radio Tuner	AM/FM
Power Source	AC power cord or batteries
Battery Type	D batteries

Summary

Specifications

General Specifications

Lists general specifications such as power requirements, output, and dimensions.

Disc Player Section Specifications

Details specifications for the CD playback mechanism and capabilities.

Radio Section Specifications

Outlines specifications for the FM/LW/MW radio tuner performance.

Tape Deck Section Specifications

Provides specifications for the cassette tape playback and recording functions.

Laser Diode Precautions

Time Adjusting Procedure

Controls Location and Identification

CD and General Controls

Identifies buttons and controls for CD playback and general unit functions.

Tuner Controls

Details buttons and controls related to radio tuning and band selection.

Deck Controls

Describes buttons and controls for cassette tape operation.

Timer Controls

Explains buttons and settings for timer-based playback and recording.

Rear Panel Section

Identifies connectors and features located on the back of the unit.

Remote Control Operation

Lists and describes the functions of the remote control transmitter buttons.

Traverse Deck Handling Precautions

Handling of Traverse Deck (Optical Pickup)

Guidelines for safely handling sensitive optical pickup components.

Grounding for Electrostatic Breakdown Prevention

Procedures to prevent static discharge damage to electronic parts.

Disassembly Instructions

Component Removal Procedures

Detailed steps for disassembling and removing various unit components.

PCB Check and Adjustment Preparations

Tuner P.C.B. Check and Adjustment

Steps for verifying and adjusting the tuner circuit board.

Tape Deck P.C.B. Check and Adjustment

Procedures for checking and adjusting the tape deck circuit.

Main and CD P.C.B. Check and Adjustment

Steps for checking and adjusting the main and CD circuit boards.

Measurements and Adjustments

Tuner Section Alignment

Procedures for aligning the tuner circuit for optimal signal reception.

Cassette Deck Section Alignment

Steps for aligning tape deck mechanisms and circuits for proper operation.

Tape Speed Alignment

Methods for adjusting and verifying the accuracy of tape playback speed.

Record Bias Check

Process for checking and adjusting the recording bias level for tape recording.

CD Section Measurements and Adjustments

Instructions for performing measurements and adjustments on the CD player.

Self Diagnostic Function

Guide to utilizing the unit's diagnostic features for troubleshooting.

Troubleshooting Guide

IC Terminal Functions

IC305 (M50253P) Terminal Functions

Details pin functions for IC305, part of the system control.

IC701 (AN8800SCE2) Terminal Functions

Details pin functions for IC701, the servo amplifier.

IC702 (TCA0372DM2R) Terminal Functions

Details pin functions for IC702, the spindle motor drive IC.

IC703 (AN8377N) Terminal Functions

Details pin functions for IC703, the motor drive IC.

IC704 (MN6650) Terminal Functions

Details pin functions for IC704, the digital servo processor.

IC705 (MN6475) Terminal Functions

Details pin functions for IC705, the digital filter and D/A converter.

IC706 (MN6626) Terminal Functions

Details pin functions for IC706, the digital signal processor.

IC601 (MND2410RUJ) Terminal Functions

Details pin functions for IC601, part of the system control.

Block Diagram

Replacement Parts List

Parts Location

Loading Unit Parts Location

Illustrates the layout of components within the CD loading mechanism.

Mechanism Parts Location

Shows the arrangement of parts for the tape deck mechanisms (Deck 1 and Deck 2).

Cabinet Parts Location

Diagrams showing the placement of external cabinet components and fasteners.