Sony CMT-M90DVD / HCD-M90 Service Manual ▷ View online
SERVICE MANUAL
DVD DECK RECEIVER
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Chinese Model
SPECIFICATIONS
HCD-M90
Ver 1.4 2004.09
9-873-991-05
Sony Corporation
2004I05-1
Personal Audio Company
© 2004.09
Published by Sony Engineering Corporation
HCD-M90 is the Amplifier, DVD player, Tape
Deck and Tuner section in CMT-M90DVD.
Deck and Tuner section in CMT-M90DVD.
Model Name Using Similar Mechanism
NEW
DVD
DVD Mechanism Type
CDM55D-DVBU8B
Section
Base Unit Name
DVBU8B
Optical Pick-up Name
KHM-240AAA (TYPE A)
KHM-270AAA (TYPE B)
TAPE
Model Name Using Similar Mechanism
HCD-M70
Section
Amplifier section
For the U.S. model
AUDIO POWER SPECIFICATIONS
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
HARMONIC DISTORTION:
With 6-ohm loads, both channels driven, from
70 - 20,000 Hz; rated 18 watts per channel
minimum RMS power, with no more than 0.9%
total harmonic distortion from 250 milliwatts to
rated output.
70 - 20,000 Hz; rated 18 watts per channel
minimum RMS power, with no more than 0.9%
total harmonic distortion from 250 milliwatts to
rated output.
North American model:
Continuous RMS power output (reference):
Continuous RMS power output (reference):
20 + 20 W
(6 ohms at 1 kHz, 10%
THD)
(6 ohms at 1 kHz, 10%
THD)
Total harmonic distortion less than 0.07% (6 ohms at
1 kHz, 12 W)
1 kHz, 12 W)
European, Chinese models:
DIN power output (rated): 15 + 15 W
DIN power output (rated): 15 + 15 W
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
20 + 20 W
(6 ohms at 1 kHz, 10%
THD)
(6 ohms at 1 kHz, 10%
THD)
Music power output (reference):
40 + 40 W
Other models:
The following measured at 230 V AC, 60 Hz
DIN power output (rated): 15 + 15 W
The following measured at 230 V AC, 60 Hz
DIN power output (rated): 15 + 15 W
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
18 + 18 W
(6 ohms at 1 kHz, 10%
THD)
(6 ohms at 1 kHz, 10%
THD)
The following measured at 220 V AC, 60 Hz
DIN power output (rated): 12 + 12 W
DIN power output (rated): 12 + 12 W
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
15 + 15 W
(6 ohms at 1 kHz, 10%
THD)
(6 ohms at 1 kHz, 10%
THD)
Inputs
AUDIO IN MD (VIDEO) (phono jacks):
AUDIO IN MD (VIDEO) (phono jacks):
Sensitivity 500/250 mV,
impedance 47 kilohms
impedance 47 kilohms
Outputs
VIDEO OUT:
VIDEO OUT:
max. output level
(phono jack)
1 Vp-p, unbalanced, Sync
negative, load impedance
75 ohms
negative, load impedance
75 ohms
S-VIDEO OUT:
Y: 1 Vp-p, unbalanced,
(4-pin/mini-DIN jack)
Sync negative,
C: 0.286Vp-p,
load impedance 75 ohms
C: 0.286Vp-p,
load impedance 75 ohms
OPTICAL OUT:
Optical
Wavelength: 660 nm
Wavelength: 660 nm
PHONES:
Accepts headphones with
an impedance of 8 ohms
or more
an impedance of 8 ohms
or more
SPEAKER:
accepts impedance of 6 to
16 ohms.
16 ohms.
DVD player section
Laser
Semiconductor laser
(DVD:
(DVD:
λ=650 nm,
CD:
λ=780 nm)
Emission duration:
continuous
continuous
Frequency response
DVD (PCM 48 kHz):
2 Hz – 22 kHz = (
2 Hz – 22 kHz = (
±1 dB)
CD: 2 Hz – 20 kHz =
(
(
±1 dB)
Signal-to-noise ratio
More than 90 dB
Dynamic range
More than 90 dB
Video color system format
NTSC, PAL
Tape deck section
Recording system
4-track 2-channel stereo
Frequency response
50 – 13,000 Hz (
±3 dB),
using Sony TYPE I
cassettes
cassettes
– Continued on next page –
2
HCD-M90
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
North American model:
FM tuner section
Tuning range
North American model:
87.5 - 108.0 MHz
(100-kHz step)
(100-kHz step)
Other models:
87.5 - 108.0 MHz
(50-kHz step)
(50-kHz step)
Antenna
FM wire antenna
Antenna terminals
75 ohms unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
Pan American model:
Tuning range
Pan American model:
530 - 1,710 kHz
(with the tuning interval
set at 10 kHz)
531 - 1,710 kHz
(with the tuning interval
set at 9 kHz)
(with the tuning interval
set at 10 kHz)
531 - 1,710 kHz
(with the tuning interval
set at 9 kHz)
European model:
531 - 1,602 kHz
(with the tuning interval
set at 9 kHz)
(with the tuning interval
set at 9 kHz)
Other models:
530 - 1,710 kHz
(with the tuning interval
set at 10 kHz)
531 - 1,602 kHz
(with the tuning interval
set at 9 kHz)
(with the tuning interval
set at 10 kHz)
531 - 1,602 kHz
(with the tuning interval
set at 9 kHz)
Antenna
AM loop antenna, external
antenna terminal
antenna terminal
Intermediate frequency
450 kHz
General
Power requirements
North American model:
North American model:
120 V AC, 60 Hz
European model:
230 V AC, 50/60 Hz
Australian model:
230 V AC, 50/60 Hz
Chinese model:
220 V AC, 50/60 Hz
Other models:
110 – 120 V or
220 – 240 V AC,
50/60 Hz
Adjustable with voltage
selector
220 – 240 V AC,
50/60 Hz
Adjustable with voltage
selector
Power consumption
European model:
European model:
see the name plate
0.3 watts (at the Power
Saving mode)
0.3 watts (at the Power
Saving mode)
Other models:
see the name plate
Dimensions (w/h/d) incl. projecting parts and controls
Amplifier/Tuner/Tape/DVD section:
Amplifier/Tuner/Tape/DVD section:
Approx. 159
× 217 ×
335 mm
Mass
Amplifier/Tuner/Tape/DVD section:
Amplifier/Tuner/Tape/DVD section:
Approx. 5.7 kg
Design and specifications are subject to change
without notice.
without notice.
Ver 1.3
3
HCD-M90
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
other than those specified herein may result in hazardous ra-
diation exposure.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur-
ing 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.
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a VOM
or battery-operated AC voltmeter. The “limit” indication is 0.75
V, so analog meters must have an accurate low-voltage scale.
The Simpson 250 and Sanwa SH-63Trd are examples of a pas-
sive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2 V AC range are suitable. (See Fig. A)
V, so analog meters must have an accurate low-voltage scale.
The Simpson 250 and Sanwa SH-63Trd are examples of a pas-
sive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2 V AC range are suitable. (See Fig. A)
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
Ω
0.15
µ
F
AC
voltmeter
(0.75 V)
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE
0
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
0
OR DOTTED
LINE WITH MARK
0
ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
This appliance is
classified as a CLASS 1
LASER product. This
label is located on the
rear exterior.
classified as a CLASS 1
LASER product. This
label is located on the
rear exterior.
The following caution label is located inside the
apparatus.
apparatus.
This label is located inside the unit.
Ver 1.3
4
HCD-M90
1.
SERVICING NOTES
...............................................
5
2.
GENERAL
...................................................................
9
3.
DISASSEMBLY
3-1. Disassembly Flow ........................................................... 10
3-2. Side Panel (L), Side Panel (R) ........................................ 11
3-3. Top Panel Section ............................................................ 11
3-4. Mechanical Deck (Tape) ................................................. 12
3-5. Front Panel Section ......................................................... 12
3-6. Back Panel Assy .............................................................. 13
3-7. MAIN Board ................................................................... 13
3-8. CONTROL Board, Noise Shield Case ........................... 14
3-9. DAC Board ...................................................................... 14
3-10. DVD Board ...................................................................... 15
3-11. Mechanism Deck (CDM55D-DVBU8B) ....................... 15
3-12. LOADING Board, Motor (LD) Assy (M901) ................ 16
3-13. RF-240 Board .................................................................. 16
3-14. Tray .................................................................................. 17
3-15. Optical Device ................................................................. 17
3-2. Side Panel (L), Side Panel (R) ........................................ 11
3-3. Top Panel Section ............................................................ 11
3-4. Mechanical Deck (Tape) ................................................. 12
3-5. Front Panel Section ......................................................... 12
3-6. Back Panel Assy .............................................................. 13
3-7. MAIN Board ................................................................... 13
3-8. CONTROL Board, Noise Shield Case ........................... 14
3-9. DAC Board ...................................................................... 14
3-10. DVD Board ...................................................................... 15
3-11. Mechanism Deck (CDM55D-DVBU8B) ....................... 15
3-12. LOADING Board, Motor (LD) Assy (M901) ................ 16
3-13. RF-240 Board .................................................................. 16
3-14. Tray .................................................................................. 17
3-15. Optical Device ................................................................. 17
4.
TEST MODE
.............................................................. 18
5.
ELECTRICAL ADJUSTMENTS
DVD Section ................................................................... 27
Deck Section ................................................................... 28
Deck Section ................................................................... 28
6.
DIAGRAMS
6-1. Block Diagram – DVD SERVO Section – .................... 29
6-2. Block Diagram – DVD MAIN Section (1/2) – ............. 30
6-3. Block Diagram – DVD MAIN Section (2/2) – ............. 31
6-4. Block Diagram – TUNER/TAPE DECK Section – ...... 32
6-5. Block Diagram – AUDIO Section – .............................. 33
6-6. Block Diagram
6-2. Block Diagram – DVD MAIN Section (1/2) – ............. 30
6-3. Block Diagram – DVD MAIN Section (2/2) – ............. 31
6-4. Block Diagram – TUNER/TAPE DECK Section – ...... 32
6-5. Block Diagram – AUDIO Section – .............................. 33
6-6. Block Diagram
– KEY CONTROL/POWER SUPPLY Section – ........... 34
6-7. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 35
6-8. Printed Wiring Board – RF-240 Board (Suffix-11) – ... 36
6-9. Schematic Diagram – RF-240 Board (Suffix-11) – ...... 37
6-10. Printed Wiring Board – RF-240 Board (Suffix-22) – ... 38
6-11. Schematic Diagram – RF-240 Board (Suffix-22) – ...... 39
6-12. Printed Wiring Boards
6-9. Schematic Diagram – RF-240 Board (Suffix-11) – ...... 37
6-10. Printed Wiring Board – RF-240 Board (Suffix-22) – ... 38
6-11. Schematic Diagram – RF-240 Board (Suffix-22) – ...... 39
6-12. Printed Wiring Boards
– DVD (Side A) (Suffix-21)/LOADING Boards – ........ 40
6-13. Printed Wiring Board
– DVD Board (Side B) (Suffix-21) – .............................. 41
6-14. Schematic Diagram
– DVD (1/7) (Suffix-21)/LOADING Boards – .............. 42
6-15. Schematic Diagram
– DVD Board (2/7) (Suffix-21) – ................................... 43
6-16. Schematic Diagram
– DVD Board (3/7) (Suffix-21) – ................................... 44
6-17. Schematic Diagram
– DVD Board (4/7) (Suffix-21) – ................................... 45
6-18. Schematic Diagram
– DVD Board (5/7) (Suffix-21) – ................................... 46
6-19. Schematic Diagram
– DVD Board (6/7) (Suffix-21) – .................................. 47
6-20. Schematic Diagram
– DVD Board (7/7) (Suffix-21) – .................................. 48
6-21. Schematic Diagram
– DVD (1/7) (Suffix-22)/LOADING Boards – .............. 49
6-22. Schematic Diagram
– DVD Board (2/7) (Suffix-22) – ................................... 50
6-23. Schematic Diagram
– DVD Board (3/7) (Suffix-22) – ................................... 51
TABLE OF CONTENTS
6-24. Schematic Diagram
– DVD Board (4/7) (Suffix-22) – ................................... 52
6-25. Schematic Diagram
– DVD Board (5/7) (Suffix-22) – ................................... 53
6-26. Schematic Diagram
– DVD Board (6/7) (Suffix-22) – .................................. 54
6-27. Schematic Diagram
– DVD Board (7/7) (Suffix-22) – .................................. 55
6-28. Printed Wiring Boards
– DVD (Side A) (Suffix-22)/LOADING Boards – ........ 56
6-29. Printed Wiring Board
– DVD Board (Side B) (Suffix-22) – .............................. 57
6-30. Printed Wiring Board – DAC Board – ........................... 58
6-31. Schematic Diagram – DAC Board – .............................. 59
6-32. Printed Wiring Board – TC Board (Suffix-12) – ........... 60
6-33. Schematic Diagram – TC Board (Suffix-12) – ............. 61
6-34. Printed Wiring Board – TC Board (Suffix-32) – ........... 62
6-35. Schematic Diagram – TC Board (Suffix-32) – ............. 63
6-36. Schematic Diagram
6-31. Schematic Diagram – DAC Board – .............................. 59
6-32. Printed Wiring Board – TC Board (Suffix-12) – ........... 60
6-33. Schematic Diagram – TC Board (Suffix-12) – ............. 61
6-34. Printed Wiring Board – TC Board (Suffix-32) – ........... 62
6-35. Schematic Diagram – TC Board (Suffix-32) – ............. 63
6-36. Schematic Diagram
– MAIN Board (1/2) (Suffix-14) – ................................. 64
6-37. Schematic Diagram – MAIN (2/2) (Suffix-14)/
JACK (Suffix-11) Boards – ............................................. 65
6-38. Printed Wiring Boards
– MAIN (Suffix-14)/JACK (Suffix-11) Boards – .......... 66
6-39. Printed Wiring Boards
– MAIN (Suffix-16)/JACK (Suffix-12) Boards – .......... 67
6-40. Schematic Diagram
– MAIN (1/2) Board (Suffix-16) – ................................. 68
6-41. Schematic Diagram – MAIN (2/2) (Suffix-16)/
JACK (Suffix-12) Boards – ............................................. 69
6-42. Printed Wiring Boards
– CONTROL (Suffix-11)/VIDEO Boards – ................... 70
6-43. Schematic Diagram
– CONTROL (Suffix-11)/VIDEO Boards – ................... 71
6-44. Printed Wiring Boards
– CONTROL (Suffix-12)/VIDEO Boards – ................... 72
6-45. Schematic Diagram
– CONTROL (Suffix-12)/VIDEO Boards – ................... 73
6-46. Printed Wiring Board
– SWITCH Board (Suffix-11) – ..................................... 74
6-47. Schematic Diagram – SWITCH Board (Suffix-11) – ... 75
6-48. Printed Wiring Board
6-48. Printed Wiring Board
– SWITCH Board (Suffix-12) – ..................................... 76
6-49. Schematic Diagram – SWITCH Board (Suffix-12) – ... 77
6-50. Printed Wiring Board
6-50. Printed Wiring Board
– POWER Board (Suffix-11) – ....................................... 78
6-51. Schematic Diagram – POWER Board (Suffix-11) – ..... 79
6-52. Printed Wiring Board
6-52. Printed Wiring Board
– POWER Board (Suffix-12, -21) – ............................... 80
6-53. Schematic Diagram
– POWER Board (Suffix-12, -21) – .............................. 81
6-54. IC Pin Function Description ........................................... 88
7.
EXPLODED VIEWS
7-1. Panel (Side) Section ........................................................ 99
7-2. Front Panel Section ........................................................ 100
7-3. Top Panel Section ........................................................... 101
7-4. Chassis Section-1 ........................................................... 102
7-5. Chassis Section-2 ........................................................... 103
7-6. Chassis Section-3 ........................................................... 104
7-7. Mechanism Deck Section (CDM55D-DVBU8B) ......... 105
7-8. Base Unit Section (DVBU8B) ....................................... 106
7-2. Front Panel Section ........................................................ 100
7-3. Top Panel Section ........................................................... 101
7-4. Chassis Section-1 ........................................................... 102
7-5. Chassis Section-2 ........................................................... 103
7-6. Chassis Section-3 ........................................................... 104
7-7. Mechanism Deck Section (CDM55D-DVBU8B) ......... 105
7-8. Base Unit Section (DVBU8B) ....................................... 106
8.
ELECTRICAL PARTS LIST
.............................. 107
Ver 1.3
