Sony Walkman PCM-M1 Bedienungsanleitung

PCM-M1

SERVICE MANUAL

DIGITAL AUDIO TAPE RECORDER

MICROFILM

Model Name Using Similar Mechanism TCD-D100

Tape Transport Mechanism Type MT-D100-128

AEP Model

US Model

SPECIFICATIONS

Tape Digital audio tape

Recording time Standard: 120minutes

Long-play mode: 240minutes (with DT-120)

Sampling frequency 48kHz, 44.1kHz, 32kHz

Quantization Standard: 16-bit linear

Long-play mode: 12-bit non linear

Frequency response

Standard: Fs 48kHz 20-22,000Hz (±1.0dB) (LINE IN)

Fs 44.1kHz 20-20,000Hz (±1.0dB) (LINE IN)

Fs 32kHz 20-14,500Hz (±1.0dB) (LINE IN)

Long-play mode: Fs32kHz 20-14,500Hz (±1.0dB) (LINE

IN)

Signal to noise ratio Standard: more than 87dB

Long-play mode: more than 87dB

(1kHz IHF-A, LINE IN)

Dynamic range Standard: more than 87dB

(1kHz IHF-A, LINE IN)

Total harmonic distortion

Standard: less than 0.008% (1kHz, 22kHz LPF, LINE IN)

Long-play mode: less than 0.09% (1kHz, 22kHz LPF,

LINE IN)

Wow and flutter

Below measurable limit (less than ±0.001% W.PEAK)

Input

Output

Input/Output DIGITAL • REMOTE I/O jack (special jack)

Jack type

stereo minijack

Impedance

MIC 4.7kΩ

LINE IN 47kΩ

Rated input level

MIC 1.4mV

LINE IN 500mV

Minimum input level

MIC 0.3mV

LINE IN 120mV

MIC/

LINE IN

Jack type

stereo

minijack

Impedance

220Ω

16Ω

Rated output

500mV

87mV

Minimum output level

–

15mW+15mW

LINE OUT

REMOTE /2

Load impedance

10kΩ

16Ω

Digital input/ output, remote control operation and

timer-activated operation is possible by connection

with an adaptor kit to this jack.

Power requirements • Two R6 (size AA) alkaline batteries (not supplied)

• Two nickel metal hydride rechargeable battery

(Supplied)

DC IN 4.5V jack accepts:

the Sony AC power adaptor AC-E45HG

(Supplied)

the car battery cord DCC-E245 (not supplied)

for use with 12V/24V car battery.

Battery life See “Replacing the batteries” (page 11).

Power consumption 0.9W

Dimension Approx. 80×117.3×29.2mm (3

1/4

×4

5/8

×1

3/16

in)

(w/h/d) not incl. projecting parts and controls

Mass Main unit: Approx. 290g (10.3oz)

When using the main unit: Approx. 395g (14oz.)

incl.headphones with remote control, rechargeable

batteries and a cassette

Supplied accessories

• AC power adaptor (1)

• Charger adaptor (1)

• Nickel Metal Hydride Rechargeable battery NH-D100 (2)

• Headphones with a remote control (1)

• DAT cleaning cassette (1)

• Microphone plug adaptor (monaural phone jack ×2→stereo miniplug) (1)*

• Optical cable (special jack ↔ rectangular-shaped optical input/output) (1)*

• Battery carrying case (1)

• Carrying case (1)

* Supplied only to the European model.

Design and specifications are subject to change without notice.

— 2 —

TABLE OF CONTENTS

1. GENERAL································································3

2. DISASSEMBLY

2-1. PANEL ASSY, LOWER ··················································· 14

2-2. MAIN BOARD ································································ 14

2-3. LID ASSY, CASSETTE ··················································· 15

2-4. PC BOARD UNIT, SYSTEM CONTROL ······················ 15

2-5. CABINET········································································· 16

2-6. BRACKET ASSY, MD ···················································· 16

2-7. CHASSIS ASSY······························································· 17

2-8. DRUM ASSY ··································································· 17

3. ADJUSTMENTS

3-1. ADJUSTMENTS······························································ 18

3-2. MECHANICALADJUSTMENTS ·································· 23

3-3. ELECTRICALADJUSTMENTS ···································· 24

4. DIAGRAM

4-1. BLOCK DIAGRAM – MD SECTION — ······················· 26

4-2. BLOCK DIAGRAM – AUDIO SECTION — ················· 29

4-3. IC BLOCK DIAGRAM ··················································· 31

4-4. PRINTED WIRING BOARD ·········································· 34

4-5. SCHEMATIC DIAGRAM —MAIN SECTION —········· 39

4-6. SCHEMATIC DIAGRAM —AUDIO SECTION — ······ 42

4-7. IC PIN FUNCTION ························································· 45

5. EXPLODEDVIEWS

5-1. CABINET SECTION ······················································· 49

5-2. CASSETTE HOLDER SECTION ··································· 50

5-3. MACHANISM SECTION 1 ············································ 51

5-4. MACHANISM SECTION 2 ············································ 52

6. ELECTRICAL PARTS LIST ··································· 53

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be

damaged by heat.

Flexible Circuit Board Repairing

• Keep the temperature of soldering iron around 270˚C

during repairing.

• Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering

or unsoldering.

— 3 —

SECTION 1

GENERAL This section is extracted

from instruction manual.

— 4 —

— 5 —

— 6 —

— 7 —

— 8 —

— 9 —

— 10 —

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