Read Sony HMD-M11 Service Manual online
– 2 –
Preamplifier section
Inputs
TAPE IN jack:
Stereo phone jacks, sensitivity 220 mV, imped-
ance 47 kilohms
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.
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
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
with voltage selector
Power consumption
US, CND model
US, CND model
19 W
Except US, CND model
20 W
Dimensions
Approx. 142
×
125
×
256 mm (w/h/d)
(5
5
/
8
×
5
×
10 inches) incl. projecting parts and
controls
Mass
Approx. 3.3 kg (6 lb 10 oz)
Design and specifications are subject to change without notice.
•
Abbreviation
CND
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 ........................................................
Buttons, and LED’s ........................................................
5
1-2.
Check Mode of Amplifier Section ..................................
5
1-3.
Extension Cable ..............................................................
5
1-4.
Aging Mode ....................................................................
5
2.
GENERAL
..................................................................
6
3.
DISASSEMBLY
........................................................ 23
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
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
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
– MD MECHANISM DECK Section – ......................... 48
6-5.
Schematic Diagram
– MD MECHANISM DECK Section – ......................... 51
– MD MECHANISM DECK Section – ......................... 51
6-6.
Schematic Diagram – MECHANISM CONTROL,
A/D, D/A CONVERTER Section – ............................... 56
A/D, D/A CONVERTER Section – ............................... 56
6-7.
Printed Wiring Boards – MECHANISM CONTROL,
A/D, D/A CONVERTER Section – ............................... 61
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
6-13. Printed Wiring Boards —DISPLAY Section— .............. 79
6-14. IC Pin Function Description ........................................... 85
7.
EXPLODED VIEWS
................................................ 96
8.
ELECTRICAL PARTS LIST
................................. 100
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