Sony PCMM-1 Service manual

PCM-M1

SERVICE MANUAL

Ver 1.2 1999. 04

SPECIFICATIONS

Tape Digital audio tape Recording time Standard: 120minutes

Sampling frequency 48kHz, 44.1kHz, 32kHz Quantization Standard: 16-bit linear

Frequency response

Signal to noise ratio Standard: more than 87dB

Dynamic range Standard: more than 87dB Total harmonic distortion

Wow and flutter

Input

MIC/

LINE IN

Output

LINE OUT

REMOTE /2

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

Jack type

stereo minijack

Jack type

stereo

minijack

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

Long-play mode: 12-bit non linear 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)

Long-play mode: more than 87dB (1kHz IHF-A, LINE IN)

(1kHz IHF-A, LINE IN) Standard: less than 0.008% (1kHz, 22kHz LPF, LINE IN) Long-play mode: less than 0.09% (1kHz, 22kHz LPF, LINE IN) Below measurable limit (less than ±0.001% W.PEAK)

Impedance

220Ω

16Ω

Impedance

MIC 4.7kΩ

LINE IN 47kΩ

Rated output

500mV

87mV

Rated input level

MIC 1.4mV

LINE IN 500mV

Minimum output level

–

15mW+15mW

Minimum input level

MIC 0.3mV

LINE IN 120mV

Load impedance

10kΩ

16Ω

AEP Model

US Model

Model Name Using Similar Mechanism TCD-D100 Tape Transport Mechanism Type MT-D100-128

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)

Battery life See “Replacing the batteries” (page 11). Power consumption 0.9W Dimension Approx. 80×117.3×29.2mm (3

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

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.

• 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.

× 4

× 1

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

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

incl.headphones with remote control, rechargeable batteries and a cassette

in)

MICROFILM

DIGITAL AUDIO TAPE RECORDER

TABLE OF CONTENTS

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

2. DISASSEMBLY

2-1. P ANEL 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. MECHANICAL ADJUSTMENTS ·································· 23 3-3. ELECTRICAL ADJUSTMENTS ····································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. EXPLODED VIEWS

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.

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