Table Of Contents - Sony HMD-M11 Service Manual

Preamplifier section
Inputs TAPE IN jack:
Stereo phone jacks, sensitivity 220 mV, imped-
ance 47 kilohms
Outputs OUTPUT jack:
Stereo phone jacks, 1 V, 1 kilohm
TAPE OUT jack:
Stereo phone jacks, 1 V, 1 kilohm
PHONES (headphones) jack:
Stereo mini jack, accepts headphones of 8 ohms
or more.
General
Power requirements
US, CND model 120 V AC, 60 Hz
AEP, UK model 220 - 230 V AC, 50/60 Hz
E, HK, SP, MY model 120 V or 220 - 240 V AC, 50/60 Hz adjustable
with voltage selector
Power consumption
US, CND model 19 W
Except US, CND model 20 W
Approx. 142 × 125 × 256 mm (w/h/d)
Dimensions
× 5 × 10 inches) incl. projecting parts and
(5 5 /
8
controls
Mass Approx. 3.3 kg (6 lb 10 oz)
Design and specifications are subject to change without notice.
• Abbreviation
CND : Canadian
HK : Hong Kong
MY : Malaysia
SP : Singapore

TABLE OF CONTENTS

1. SERVICING NOTES
1-1. Check Mode of Fluorescent Indicator Tube,
Buttons, and LED's ........................................................ 5
1-2. Check Mode of Amplifier Section .................................. 5
1-3. Extension Cable ..............................................................
1-4. Aging Mode .................................................................... 5
2. GENERAL
..................................................................
3. DISASSEMBLY
4. TEST MODE
4-1. Precautions for Use of Test Mode .................................. 30
4-2. Setting the Test Mode ..................................................... 30
4-3. Releasing the Test Mode ................................................ 30
4-4. Basic Operations of the Test Mode ................................ 30
4-5. Selecting the Test Mode ................................................. 30
4-6. Operating the Continuous Playback Mode ..................... 31
4-7. Operating the Continuous Recording Mode ................... 31
4-8. EEP Mode ....................................................................... 32
4-9. Functions of Other Buttons ............................................ 32
4-10. Test Mode Displays ........................................................ 32
4-11. Meanings of Other Displays ........................................... 32
5. ELECTRICAL ADJUSTMENTS
5-1. Precautions for Checking Laser Diode Emission ........... 33
5-2. Precautions for Use of Optical Pick-up (KMS-260A) ... 33
5-3. Precautions for Adjustments ........................................... 33
5-4. Creating MO Continuously Recorded Disc .................... 33
5-5. Temperature Compensation Offset Adjustment ............. 34
5-6. Laser Power Adjustment ................................................. 34
5-7. Traverse (E-F Balance) Adjustment ............................... 35
5-8. Focus Bias Adjustment ................................................... 36
5-9. Error Rate Check ............................................................ 36
5-10. Focus Bias Check ........................................................... 36
5-11. Adjusting Points and Connecting Points ........................ 37
6. DIAGRAMS
6-1. Block Diagram (1/3) ....................................................... 39
6-2. Block Diagram (2/3) ....................................................... 41
6-3. Block Diagram (3/3) ....................................................... 43
6-4. Printed Wiring Boards
- MD MECHANISM DECK Section - ......................... 48
6-5. Schematic Diagram
- MD MECHANISM DECK Section - ......................... 51
6-6. Schematic Diagram - MECHANISM CONTROL,
A/D, D/A CONVERTER Section - ............................... 56
6-7. Printed Wiring Boards - MECHANISM CONTROL,
A/D, D/A CONVERTER Section - ............................... 61
6-8. Printed Wiring Board - AUDIO/TUNER Section - ...... 63
6-9. Schematic Diagram - AUDIO/TUNER Section - ......... 65
6-10. Schematic Diagram
- MASTER CONTROL, POWER SUPPLY Section - .. 69
6-11. Printed Wiring Boards
- MASTER CONTROL, POWER SUPPLY Section - .. 73
6-12. Schematic Diagram -DISPLAY Section- .................. 76
6-13. Printed Wiring Boards -DISPLAY Section- .............. 79
6-14. IC Pin Function Description ........................................... 85
7. EXPLODED VIEWS
8. ELECTRICAL PARTS LIST
- 2 -
........................................................ 23
................................................ 96
................................. 100
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