Sony HCD-MG110, HCD-MG310AV Service manual

)

HCD-MG110/MG310AV

SERVICE MANUAL

Ver 1.0 2001.03

HCD-MG110/MG310AV are the Amplifier , CD pla yer, Tape
Deck and Tuner section in MHC-MG110/MG310AV.

HC D-MG310AV only

This stereo system is equipped with the Dolby* Pro Logic
Surround decoder.
* Manufactured under license from Dolby Laboratories.

Dolby, Pro Logic, and the double-D symbol ; are
trademarks of Dolby Laboratories. Confidential
unpublished works. '1992-1997 Dolby Laboratories.
All rights reserved.

CD
Section

TAPE
Section

US Model

Photo: HCD-MG110

Model Name Using Similar Mechanism NEW
CD Mechanism Type CDM64-K1BD44A
Base Unit Name BU-K1BD44A
Optical Pick-up Name KSM-213BFN
Model Name Using Similar Mechanism NEW
T ape Tr ansport Mechanism Type CM8L6Z511A

Amplifier section
AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:

with 8 ohm loads both channels driven, from
100 – 10,000 Hz; rated 75 watts per channel
minimum RMS power, with no more than 10%
total harmonic distortion from 250 milliwatts to
rated output.

HCD-MG310AV

Front speaker:

Continuous RMS power output

Total harmonic distortion less than 0.09%

Center speaker:

Continuous RMS power output

Rear speaker:

Continuous RMS power output

75 + 75 watts
(8 ohms at 1 kHz,
10% THD)

(8 ohms at 1 kHz,
40 watts)

25 watts
(8 ohms at 1 kHz,
10% THD)

25 + 25 watts
(8 ohms at 1 kHz,
10% THD

SPECIFICATIONS

HCD-MG110

Continuous RMS power output

Total harmonic distortion less than 0.09%

Inputs
VIDEO/MD IN (phono jacks):

5.1CH (HCD-MG310AV only):
FRONT (phono jacks): voltage 450 mV,

REAR (phono jacks): voltage 450 mV,
CENTER (phono jack): voltage 450 mV,
SUB WOOFER (phono jack):

Outputs
PHONES (stereo phone jack):

FRONT SPEAKER: accepts impedance of 8 to

75 + 75 watts
(8 ohms at 1 kHz,
10% THD)

(8 ohms at 1 kHz,
40 watts)

voltage 250 mV/450 mV,
impedance 47 kilohms

impedance 47 kilohms
impedance 47 kilohms
impedance 47 kilohms
voltage 450 mV,

impedance 47 kilohms

accepts headphones of
8 ohms or more

16 ohms (except for the
North American model)

SURROUND SPEAKER REAR (HCD-MG310AV
only): accepts impedance of 8 to

SURROUND SPEAKER CENTER
(HCD-MG310AV only): accepts impedance of

SUB WOOFER (HCD-MG310AV only):

CD player section

System Compact disc and digital
Laser Semiconductor laser

Frequency response 2 Hz – 20 kHz (±0.5 dB)
Wavelength 780 – 790 nm
Signal-to-noise ratio More than 90 dB
Dynamic range More than 90 dB
OPTICAL OUT (CD)
(Square optical connector jack, rear panel)
Wavelength 660 nm
Output Level –18 dBm

16 ohms (except for the
North American model)

8 ohms (except for the
North American model)

voltage 1 V,
impedance 1 kilohm

audio system
(λ = 780 nm)

Emission duration:
continuous

– Continued on next page –

9-873-801-11 Sony Corporation

2001C0500-1 Audio Entertainment Group
C 2001.3 General Engineering Dept.

COMPACT DISC DECK RECEIVER

HCD-MG110/MG310AV

Tape player section

Recording system 4-track 2-channel stereo
Frequency response 40 – 13,000 Hz (±3 dB),

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range 87.5 – 108.0 MHz
Antenna FM lead antenna
Antenna terminals
North American model: 75 ohms unbalanced
Australian model: 75 ohms balanced
Intermediate frequency 10.7 MHz

using Sony TYPE I
cassette

AM tuner section

Tuning range 530 – 1,710 kHz

Antenna AM loop antenna
Antenna terminals External antenna terminal
Intermediate frequency 450 kHz

TABLE OF CONTENTS

1. SERVICING NOTE.................................................. 4

2. GENERAL ................................................................... 5

3. DISASSEMBLY

3-1. Disassembly Flow ........................................................... 7

3-2. Upper Cover .................................................................... 8

3-3. Front Block Assy............................................................. 8

3-4. MAIN Board ................................................................... 9

3-5. Back Panel....................................................................... 9

3-6. “MAIN AMP Board”, “POWER Board”........................ 10

3-7. “Middle (F) Assy”, “Bracket (Middle-R)”,

“Power Bracket”.............................................................. 10

3-8. Mechanism Deck (CDM64-K1BD44A)......................... 11

3-9. Base Unit (BU-K1BD44A)............................................. 11

3-10. BU Holder Assy .............................................................. 12

3-11. “Motor Gear Assy (Sled) (M102)”, “CD Board”........... 12

3-12. Op Base Assy (KSM-213BFN) ...................................... 13

3-13. Cassette Lid Assy (A)/(B)............................................... 13

3-14. Mech Deck ...................................................................... 14

4. MECHANICAL ADJUSTMENTS....................... 15

5. DIAGRAMS

5-1. Block Diagram – CD SERVO Section – ........................ 17

5-2. Block Diagram – TUNER/TAPE DECK Section – ...... 18

5-3. Block Diagram – SURROUND Section –...................... 19

5-4. Block Diagram – AMP Section – ................................... 20

5-5. Block Diagram

– DISPLAY/POWER SUPPLY Section – ...................... 21

5-6. Note for Printed Wiring Boards and

Schematic Diagrams ....................................................... 22

General

(with the interval set at
10 kHz)
531 – 1,710 kHz
(with the interval set at
9 kHz)

Power requirements 120 V AC, 60 Hz
Power consumption

HCD-MG310AV: 200 watts
HCD-MG110: 150 watts

Dimensions (w/h/d) incl. projecting parts and controls

Mass
HCD-MG310AV: Approx. 11.3 kg
HCD-MG110: Approx. 10.9 kg

Design and specifications are subject to change
without notice.

Approx. 280 × 383 × 480
mm

5-7. Schematic Diagram – CD Section – ............................... 24

5-8. Printed Wiring Board – CD Section – ............................ 25

5-9. Printed Wiring Boards

– CD MOTOR/SENSOR Section – ................................ 26

5-10. Schematic Diagram

– CD MOTOR/SENSOR Section – ................................ 27

5-11. Printed Wiring Board – TC Section –............................. 28

5-12. Schematic Diagram – TC Section – ............................... 29

5-13. Schematic Diagram – MAIN Section (1/4) – ................. 30

5-14. Schematic Diagram – MAIN Section (2/4) – ................. 31

5-15. Schematic Diagram – MAIN Section (3/4) – ................. 32

5-16. Schematic Diagram – MAIN Section (4/4) – ................. 33

5-17. Printed Wiring Board – MAIN Section – ....................... 34

5-18. Printed Wiring Boards – AMP Section –........................ 36

5-19. Schematic Diagram – AMP Section – ............................ 37

5-20. Printed Wiring Boards – DISPLAY Section – ............... 38

5-21. Schematic Diagram – DISPLAY Section –.................... 39

5-22. Printed Wiring Board – CONTROL Section – ............... 40

5-23. Schematic Diagram – CONTROL Section –.................. 41

5-24. Printed Wiring Boards – POWER Section – .................. 42

5-25. Schematic Diagram – POWER Section – ...................... 43

5-26. IC Pin Function Description ........................................... 44

6. EXPLODED VIEWS

6-1. General Section ............................................................... 50

6-2. Front Panel Section ......................................................... 51

6-3. Chassis Section ............................................................... 52

6-4. Mechanism Deck Section (CDM64-K1BD44A) ........... 53

6-5. Base Unit Section (BU-K1BD44A) ............................... 54

7. ELECTRICAL PARTS LIST ............................... 55

2

HCD-MG110/MG310AV

r

Notes on chip component replacement

• Never reuse a disconnected chip component.

• 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 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.

SAFETY CHECK-OUT

After correcting the original service problem, perform the follow­ing 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

WT -540A. Follo w the manufacturers’ instructions to use these
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 low­voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex­amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are
suitable. (See Fig. A)

To Exposed Metal
Parts on Set

CAUTION

Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra­diation exposure.

This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.

Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.

NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electro­static break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis­sion, observe from more than 30 cm away from the objective lens.

LASER DIODE AND FOCUS SEARCH OPERATION
CHECK

Carry out the “S curve check” in “CD section adjustment” and
check that the S curve waveforms is output three times.

AC

1.5 k

0.15 µF

Fig. A. Using an AC voltmeter to check AC leakage.

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 PUB­LISHED BY SONY.

Ω

Earth Ground

voltmete
(0.75 V)

3

HCD-MG110/MG310AV

SECTION 1

SERVICING NOTE

CD-TEXT TEST DISC

This unit is able to display the test data (character information) written in the CD on its fluorescent indicator tube.
The CD-TEXT TEST DISC (TGCS-313:4-989-366-01) is used for checking the display.
To check, perform the following procedure.

Checking Method:

1. Press the I/1 button to turn the power on, set the disc to the disc table with the “test disc” label facing up, and chuck the disc.

2. Press the [CD] button to set CD function, and press the n N button to playback the disc.

3. The following will be displayed on the liquid crystal display.
Display : 1KHZ/0DB/L R

4. Pressing the [-- ] or [ +] button, select the track. The text data of each track will be displayed.

For details of the displayed contents for each track, refer to “Table 1 : CD-TEXT TEST DISC TEXT Data Contents”.

Restrictions in CD-TEXT Display

In this unit, some special characters will not be displayed properly. These will be displayed as a space or a character resembling it.

Table 1 : CD-TEXT TEST DISC TEXT Data Contents (TRACKS No. 1 to 20:Normal Characters)

TRACK

No.

1 1kHz/0dB/L&R
2 20Hz/0dB/L&R
3 40Hz/0dB/L&R
4 100Hz/0dB/L&R
5 200Hz/0dB/L&R
6 500Hz/0dB/L&R
7 1kHz/0dB/L&R
8 5kHz/0dB/L&R

9 7kHz/0dB/L&R
10 10kHz/0dB/L&R
11 16kHz/0dB/L&R
12 18kHz/0dB/L&R
13 20kHz/0dB/L&R
14 1kHz/0dB/L&R
15 1kHz/–1dB/L&R
16 1kHz/–3dB/L&R
17 1kHz/–6dB/L&R
18 1kHz/–10dB/L&R
19 1kHz/–20dB/L&R
20 1kHz/–60dB/L&R

.>

Displayed Contents

Note: Track No. 21 to 99 are not displayed.

4

Parts Identification

The items are arranged in alphabetical order.
Refer to the pages indicated in parentheses ( ) for details.

Main unit

SECTION 2

GENERAL

HCD-MG110/MG310AV

This section is extracted from
instruction manual.

1

es

ea
e;
wl
wk
wj
wh

wg
wf
wd
ws
wa

5.1CH/VIDEO (MD)* 5 (28)
AUDIO IN L jack wk (29)
AUDIO IN R jack wj (29)
CD 5 (14, 21)
CD SYNCHRO wh (21, 22)
CLEAR w; (15, 19, 34)
Deck A es (20 )
Deck B 0 (20)
DIRECTION ea (20)
DISC ACCESS ql (12, 21)
Display window 4
DISPLAY wd (12, 17, 19, 34)
ENTER qk (11, 15, 18, 22, 26, 28)
FRONT* qd (25)
GAME e; (26, 29)
KEYBOARD INPUT jack ws

(27)

LINK* qg (25)
MENU ea (16, 18)

234

5

67 8 9

w; ql

PHONES jack wa
PLAY MODE wf (14, 22)
PRESET EQ 7 (24)
PRO LOGIC* qs (11, 25)
PUSH OPEN (Front cover) qj

(12)

REAR* qf (25)
REC PAUSE/START wh (21,22)
REPEAT wg (14)
STEREO/MONO wg (19)
SURROUND* qa (25)
SURROUND MODE 8 (25)
TAPE A/B 5 (20)
TIMER SELECT 3 (23, 27)
TIMER SET 3 (11, 23, 26)
TUNER/BAND 5 (18)
VIDEO IN jack wl (29)
VIDEO (MD)** 5 (28)
VOLUME control qh

0
qa

qs

qd

qf
qg
qh

qj
qk

BUTTON DESCRIPTIONS

Z (deck A) 1
=/1 (power) 2
m (rewind) 6
n N (play) 6
X PAUSE 6
M (fast forward) 6
x (stop) 6
— . (go back) 6
> + (go forward) 6
Z (deck B) 9

* HCD-MG310AV only
** HCD-MG110 only

4

5

HCD-MG110/MG310AV

Remote Control

For HCD-MG310AV

1234

wf

wd
ws

wa
w;

ql

qk
qj

qh

qg

5

6

7
8

9
0

qa
qs

qd

qf

5.1CH wa (30)
CD ql (14, 21)
CENTER +/– 5 (11)
DBFB qd (24)
DISPLAY 9 (12, 17, 19)
GAME 8 (26, 29)
GROOVE qf (24)
PLAY MODE 2 (14, 22)
PRESET EQ qk (24)
PRO LOGIC wf (11, 25)
REAR +/– 6 (11)
REPEAT 3 (14)
SCROLL qa (17)
SLEEP 1 (26)
SURROUND qh (25)
TAPE A/B w; (20)
TEST TONE ws (11)
TUNER/BAND 7 (18)
VIDEO (MD) wd (28)
VOL +/– qg

BUTTON DESCRIPTIONS

@/1 (power) 4
N (play) 0
X (pause) 0
x (stop) 0
. (go back) 0
m (rewind) 0
M (fast forward) 0
> (go forward) 0

TDISC/DISCt qs qj

Setting the time

1

Turn on the system.

2

Press TIMER SET.

When you set the clock for the first time, go
to step 5.

3

Press — . or > + repeatedly to
select CLOCK SET.

4

Press ENTER.

5

Press — . or > + repeatedly to set
the hour.

6

Press ENTER.

7

Press — . or > + repeatedly to set
the minute.

8

Press ENTER.

Tip

If you made a mistake or want to change the time,
start over from step 1.

Note

The clock settings are canceled when you disconnect
the power cord or if a power failure occurs.

For HCD-MG110

1234

wh

wg

wf
wd

ws
wa
w;
ql

qk

qj

5
6
7
8

9
0
qa
qs

qd
qf

qg

qh

CD wf (14, 21)
CLOCK/TIMER SELECT 2

(23, 27)
CLOCK/TIMER SET 3 (23, 26)
DBFB qg (24)
DISPLAY wh (12, 17, 19)
ENTER 5 (11, 15, 18, 22, 26,

28, 34)
GAME 7 (26, 29)
GROOVE qh (24)
PLAY MODE wg (14, 22)
PRESET EQ w; (24)
REPEAT 8 (14)
SCROLL qd (17)
SLEEP 1 (26)
SURROUND qk (25)
TAPE A/B wd (20)
TUNER/BAND 9 (18)
VIDEO (MD) 6 (28)
VOL +/– qj

BUTTON DESCRIPTIONS

@/1 (power) 4
N (play) 0
X (pause) 0
x (stop) 0
. (go back) wa
m (rewind) ws
M (fast forward) qa
> (go forward) qs

TDISC/DISCt qf ql

6

• This set can be disassembled in the order shown below.

3-1. DISASSEMBLY FLOW

SET

3-2. UPPER COVER

(Page 8)

HCD-MG110/MG310AV

SECTION 3

DISASSEMBLY

3-3. FRONT BLOCK ASSY

(Page 8)

3-4. MAIN BOARD

(Page 9)

3-5. BACK PANEL

(Page 9)

3-6. "MAIN AMP BOARD",

"POWER BOARD"

(Page 10)

3-7. "MIDDLE (F) ASSY",

"BRACKET (MIDDLE-R)",

"POWER BRACKET"

(Page 10)

3-8. MECHANISM DECK

(CDM64-K1BD44A)

(Page 11)

3-13. CASSETTE LID ASSY (A)/(B)

(Page 13)

3-14. MECH DECK

(Page 14)

3-9. BASE UNIT

(BU-K1BD44A)

(Page 11)

3-10. BU HOLDER ASSY

(Page 12)

3-11. "MOTOR GEAR ASSY

(SLED) (M102)"

"CD BOARD"

(Page 12)

3-12. OP BASE ASSY

(KSM-213BFN)

(Page 13)

7

HCD-MG110/MG310AV

Note: Follow the disassembly procedure in the numerical order given.

3-2. UPPER COVER

3

upper cover

1

three screws
(BVTP3

×

8)

2

five screws
(BVTP3

2

two screws
(BVTP3

1

three screws
(BVTP3

×

8)

×

8)

×

8)

3-3. FRONT BLOCK ASSY

6

front block assy

4

screw (KTP3 × 8)

2

three connectors
(CN310, 503, 803)

5

two bosses

1

three wires (flat type)
(CN301, 311, 312)

5

two bosses

4

screw (KTP3 × 8)

3

three screws
(BVTP3

×

8)

8

3-4. MAIN BOARD

s

MG310AV

3

three screws
(BVTP3

HCD-MG110/MG310AV

8)

MG110

3

screw
(BVTP3

3

screw (BVTP3 × 8)

MG310AV

3

three screws
(BVTP3

×

8)

×

8)

1

wire (flat type)
(CN303)

2

three connectors
(CN304, 314, 903)

×

3-5. BACK PANEL

1

wire (flat type)
(CN309)

2

2

back panel

three connectors
(CN305, 306, 307)

1

two screws
(BVTP3

×

10)

5

MAIN board

4

screw
(BVTP3

1

two screws
(BVTP3

×

8)

×

10)

MG310AV

1

eleven screw
(BVTP3 × 10)

9

HCD-MG110/MG310AV

)

3-6. “MAIN AMP BOARD”, “POWER BOARD”

1

connector
(CN502)

4

three screws

5

center bracket

(BVTP3

×

8)

2

two screws
(BVTP3

×

8)

2

four screws
(BVTP3

×

8)

3

MAIN AMP board

7

POWER board

6

two screws
(BVTP4

×

8

3-7. “MIDDLE (F) ASSY”, “BRACKET (MIDDLE-R)”, “POWER BRACKET”

6

bracket (middle-R)

4

three screws
(BVTP3 × 8)

2

screw (BVTP3 × 8)

1

screw (BVTP3 × 8)

6

two screws
(BVTP4

5

two screws
(BVTP3 × 8)

×

8)

8

three screws
(BVTP3 × 8)

9

two screws
(BVTP3 × 8)

10

3

middle (F) assy

2

screw
(BVTP3 × 8)

7

screw
(BVTP3 × 8)

0

power bracket

3-8. MECHANISM DECK

)

(CDM64-K1BD44A)

2

table (60)

1

screw (2.6 × 8)

5

mechanism deck (CDM64-K1BD44A)

HCD-MG110/MG310AV

4

two screws
(BVTP3

×

8

3-9. BASE UNIT

(BU-K1BD44A)

1

three screws
(BVTP3

×

8)

lower chassis

2

bracket (top 60)

4

four screws
(BVTP3

3

screw
(PSW3

×

6)

4

×

8)

four screws
(BVTP3

×

3

base unit (BU-K1BD44A)

8)

11

HCD-MG110/MG310AV

)

3-10. BU HOLDER ASSY

1

tension spring (F1)

2

tension spring (F-2)

3

two screws
(PTP2.6

×

8

4

BU holder assy

3

two screws
(PTP2.6

3-11. “MOTOR GEAR ASSY (SLED) (M102)”, “CD BOARD”

7

2

two screws
(P2

gear

6

claw

×

3)

8

claw

×

9

gear cover

0

8)

8

two claws

gear

12

qd

1

Remove two
solders.

CD board

4

qa

Remove two solders.

5

parallel (FFC) (16 core) wire
(CN102)

qs

motor gear assy (SLED)
(M102)

3

screw (P2 × 5)

3-12. OP BASE ASSY

n

d

(KSM-213BFN)

HCD-MG110/MG310AV

3

Remove the optical pick-up
(KSM-213BFN) in the directio
of arrow B.

B

2

sled shaft

3-13. CASSETTE LID ASSY (A) / (B)

1

Open the cassette lid
assy (A)/(B).

A

1

Slide the lever
in the direction of arrow

A

.

2

two claws

3

cassette lid
assy (A)

4

two claws

5

cassette li
assy (B)

13

HCD-MG110/MG310AV

)

3-14. MECH DECK

4

cassette holder assy (A)

0

two screws
(BVTP2.6)

1

three screws
(BVTP3

×

10)

qs

mech deck

qa

MD bracket

3

5

cassette
holder
assy (B)

7

shield plate (MD)

2

9

TC board

8

screw (BVTP2.6)

6

two screws
(BVTP2.6)

two screws
(BVTP3 × 10

14

SECTION 4

MECHANICAL ADJUSTMENTS

HCD-MG110/MG310AV

• TAPE MECHANISM DECK SECTION

Precaution

1. Clean the following parts with a denatured alcohol-moistened
swab:

record/playback heads pinch rollers
erase head rubber belts
capstan idlers

2. Demagnetize the record/playback head with a head demagne­tizer.

3. Do not use a magnetized screwdriver for the adjustments.

4. After the adjustments, apply suitable locking compound to the
parts adjusted.

5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.

Torque Measurement

Mode

FWD

FWD
back tension

REV

REV
back tension

FF/REW

FWD tension

REV tension

Torque meter

CQ-102C

CQ-102C

CQ-102RC

CQ-102RC

CQ-201B

CQ-403A

CQ-403R

Meter reading

2.94 mN • m to 7.84 mN • m
31 to 71 g • cm

(0.43 – 0.98 oz • inch)

0.14 mN • m to 0.59 mN • m

2 to 6 g • cm

(0.02 – 0.08 oz • inch)

2.94 mN • m to 7.84 mN • m
31 to 71 g • cm

(0.43 – 0.98 oz • inch)

0.14 mN • m to 0.59 mN • m

2 to 6 g • cm

(0.02 – 0.08 oz • inch)

6.86 mN • m to 17.64 mN • m
71 to 143 g • cm

(0.98 – 1.99 oz • inch)

more than 0.98 N • m

100 g or more

(3.53 oz or more)

more than 0.98 N • m

100 g or more

(3.53 oz or more)

15

HCD-MG110/MG310AV

MEMO

16

SECTION 5

DIAGRAMS

5-1. BLOCK DIAGRAM – CD SERVO Section –

HCD-MG110/MG310AV

DETECTOR

A

B

C

D

F

E

OPTICAL PICK-UP

BLOCK

(KSM-213BFN)

LASER DIODE

PD

I-V AMP

LD

CD +5V

6

7

8

9

11

10

AUTOMATIC

POWER

CONTROL

Q101

A

B

C

D

E

F

F I-V AMP

E I-V AMP

LD

1

FOCUS/TRACKING ERROR AMP

RF

SUMMING

AMP

FOCUS

ERROR AMP

RF DC

AMP

TRACKING

ERROR AMP

APC LD

AMP

AC

SUM

RFDCO

RFDCI

SW

RF AMP,

IC103

FE

FEI

TE

PD

FILTER

53

54 56

FILO

EQ

IN

4

16

17

28

29

18

12

2

RFAC

3

VCA

RFAC

EQ

15

PWM1

PWM3

PWM2

RFAC

51

49

48

ASYMMETRY
CORRECTION

ASYI

ASYO

DIGITAL

CLV

MDP

XRST

26 7 8

3

SUBCODE

PROCESSOR

XLON

DATA

CLOK

14 5

PCO

CLTV

DIGITAL

PLL

CPU INTERFACE

XLAT

SENS

6

84 19

55

DIGITAL SIGNAL PROCESSOR,

DIGITAL FILTER, D/A CONVERTER

FILI

LEVEL
SHIFT
IC803

EFM

DEMODULATOR

SERVO AUTO

SEQUENCER

SQSO

SCOR

20

1 2

32 33

16K

RAM

SQCK

IC101 (1/2)

CORRECTOR

SERVO

INTERFACE

SCLK

COUT

9 21

D/A

INTERFACE

INTERNAL BUS

ERROR

SSTP

EMPH

WFCK

GFS

64 15

27

ON :

18

S101

(LIMIT)

When the optical pick-up
is inner position

PCMD

62

BCK

63

LRCK

61

C2PO

19

SERIAL

IN

INTERFACE

TO MIRR/DFCT/
FOK DETECTOR

DIGITAL

FILTER,

NOISE SHAPER

DIGITAL

OUT

DOUT

60

PWM

&

INTEGRATOR

TRANSCEIVER

OPTICAL

IC361

AOUT1

AOUT2

70

77

OPTICAL

OUT (CD)

71

76

CLOCK

GENERATOR

AIN1

AIN2

BUFFER

TIMING

LOGIC

LOUT1

LOUT2

XTAI

XTAO

CD

L-CH

72

75

R-CH

66

67

A

X101

16.9344MHz

(Page 19)

2-AXIS
DEVICE

(TRACKING)

(FOCUS)

M101

(SPINDLE)

M102

(SLED)

FOCUS/TRACKING COIL DRIVE,

SPINDLE/SLED MOTOR DRIVE

IC102

CH4OUTF

15

M

M

16

17

18

11

12

13

14

CH4OUTR

CH3OUTF

CH3OUTR

CH2OUTR

CH2OUTF

CH1OUTR

CH1OUTF

MOTOR

DRIVE

MOTOR

DRIVE

COIL

DRIVE

COIL

DRIVE

CH4SIN

CH3FIN

CH3RIN

CH2RIN

CH2FIN

CH1RIN

CH1FIN

MUTE

25

PWM1
PWM2
PWM3

43

39

40

41

FE

TE

SE

24

23

SFDR

28

SRDR

29

6

5

3

2

20

TFDR

30

TRDR

31

FFDR

32

33

FRDR

FOCUS/TRACKING/SLED

RFDC

A/D

CONVERTER

PWM GENERATOR

SERVO DSP

FOCUS/TRACKING/SLED

DIGITAL SERVO

PROCESSOR

IC101 (2/2)

MIRR/DFCT/

FOK

DETECTOR

TO SERVO INTERFACE

FOK

MIRR

DFCT

24
22
23

85
87
86

88

22
24
26

83

C-SENS

C-DATA
C-CLK
C-LATCH

LD ON

PWM1
PWM2
PWM3

C-XRST

C-SQCK

C-SCOR

C-SQSO

LOAD IN SW 6

LOAD OUT SW 7

SYSTEM CONTROLLER

IC801 (1/5)

LOAD NEG 3
LOAD POS

TABLE POS 5
TABLE NEG

T-SENS1
T-SENS2
T-SENS3

D-SENS 92

93
18
91

2

100

LOAD IN

LOAD OUT

TABLE

SENSOR

IC11 – 13

S842

(LOAD)

DISC IN

DETECT SENSOR

D841, Q841

LOADING

MOTOR CONTROL

Q881 – 884

TABLE

MOTOR CONTROL

Q885 – 888

2
3

17
16

LOADING/TABLE

MOTOR DRIVE

FN1
RN1

FIN2
RIN2

IC881

MOTOR

DRIVE

MOTOR

DRIVE

OUT1 +
OUT1 –

OUT2 +
OUT2 –

8
9

11
10

M

M

M51

(LOADING)

M52

(TABLE)

• R-ch is omitted due to same as L-ch.

• SIGNAL PATH

: CD PLAY (ANALOG)

: CD PLAY (DIGITAL OUT)

1717

HCD-MG110/MG310AV

5-2. BLOCK DIAGRAM – TUNER/TAPE DECK Section –

FM 75Ω

HP101

(PLAY)

AM

L-CH

R-CH

L-CH

R-CH

R-CH

R-CH

FM ANT

ANT GND

AM ANT

ANT GND

TUNER PACK

R-CH R-CH

L-CH

R-CH

DO

TU-CLK

TU-CE

TUNED

13

DI

24

23

REC/PB SWITCHING

R-CH

TUNED

A IN-L

B IN-L

IC402

CLK

TUNER

L-CH

DI

DO

CE

(HCD-MG310AV)

INPUT SELECT

SWITCH

IC306

1 2

4 3

5 13

R-CHR-CH

A/B SW

19

PB AMP

IC401 (1/2)

PB

AMP

R-CH

R-CH

PB-L

20

MIX

OUT

6

+

AMS DET

Q404, 405

MUTING

Q102

MUTING

Q101

R-CHR-CH

(HCD-MG110)

(HCD-MG310AV)

5.1CH

TAPE
L-CH

B

C

D

(Page 19)

(Page 19)

(Page 19)

HRPE101

(REC/PLAY/ERASE)

R-CH

M1

(CAPSTAN)

BIAS OSC

T401

SENSOR B+

MM

T403

2

BIAS OSC

Q401

C429, R429

BIAS

TRAP

REC BIAS

SWITCH

Q402, 403

CAPSTAN

MOTOR DRIVE

Q381, 382

MOTOR

+12V

4

AU +9V

58 MO-ON

54

53

PB/REC

PB-A/B

(DECK A PLAY)

A-PLAY

61

16

67

AMS

B-PLAY

56

(DECK B PLAY)

REC
OUT-L

REC AMP

IC401 (2/2)

REC

AMP

(DECK A HALF)

TAPE MECHANISM

DECK BLOCK

(1/2)

REC

IN-L

A-HALF

66

REC

14

TRIGGER PLUNGER

(DECK B)

TRIGGER

PLUNGER DRIVE

(DECK B)

Q385, 386

60

B-TRIG

78

DI

DO

80

TU-DI

CLK

79

TU-DO

CE

77

TU-CE

TU-CLK

R-CH

MUTING

Q112

50

REC-MUTE

68

PB-MUTE

90

B-HALF

69

TAPE

70

DVD

SYSTEM CONTROLLER

TAPE MECHANISM

DECK BLOCK

(2/2)

ROTATION

DETECT SENSOR

(DECK A)

97

A-SHUT

IC801 (2/5)

ROTATION

DETECT SENSOR

(DECK B)

89

B-SHUT

TRIGGER PLUNGER

(DECK A)

TRIGGER

PLUNGER DRIVE

(DECK A)

Q383, 384

59

A-TRIG

L-CH

TUNED

76

TU-TUNED

E

(Page 19)

• R-ch is omitted due to same as L-ch.

(DECK B HALF)

(DECK A REC)

(DECK B REC)

• SIGNAL PATH

: TUNER

: TAPE PLAY (DECK A)

: TAPE PLAY (DECK B)

: REC

: 5.1CH INPUT

1818

5-3. BLOCK DIAGRAM – SURROUND Section –

HCD-MG110/MG310AV

5.1CH

INPUT

VIDEO IN

AUDIO

FRONT

REAR

CENTER

SUPER

WOOFER

(Page 21)

(Page 18)

(Page 17)

(Page 18)

(Page 18)

L

R

L

R

VIDEO

(Page 18)

L

R

L

R

J302

J701

J301

F

E

A

B

D

C

SPE ANA

REC
L-CH

CD
L-CH

TUNER
L-CH

TAPE
L-CH

R-CH

R-CH

5.1CH

R-CH

R-CH

B1

3

C1

5

D1

7

A1

1

E1

9

J304

VIDEO OUT

FRONT

REAR

CENTER

WOOFER

(HCD-MG310AV)

INPUT SELECT

IC302 (1/2)

INPUT SELECT

LOGIC

DATA

DATA

+

R-CH

CLK

1514

CLK

DATA
CLK

LINE

OUT

J303

FRONT

L-CH

CENTER

REAR

L-CH

(HCD-MG310AV)

SUPER WOOFER

OUT

(Page 20)

G

(Page 20)

H

(Page 20)

J

(HCD-MG310AV)

LOW-PASS

FILTER

IC304 (1/2)

(HCD-MG110)

DOLBY PRO LOGIC

SURROUND PROCESSOR

IC301

AUTO-BALANCE

L–R

SW

OUT

INPUT

DS2L

OUT

WOOFER

FRONT

32

CENTER

REAR

51 V-DATA
52 V-CLK

SWIN

79

VRSWIN

80

LIN

72

LTIN

74

R-CH

L+R

2

CIN

76

SLIN

77

SYSTEM CONTROLLER

IC801 (3/5)

SWVOL

IN

SELECTOR

COMMAND

REQ

PL-RQ

TRIMMER,

VOLUME

ADAPTIVE

MATRIX

S

DIN

R-CH

L
R
C

10KBIT S-RAM

LOGIC

CIRCUIT

PSEUDO
STEREO

PS

RIN

CENTER

MODE

CONTROL

PS

LIN

DELAY

VOLUME

1615

NOISE

SEQUENCER

26 27

CPU

INTERFACE

DATA

SCK

22 23 24 8 7 6

27 28 25

PL-CLK

PL-DATA

R-CH

DVOL

OUT

OUT

SL

OUT

SWVOL OUT

+

MODIFIED

BNR

BNR

IN

4240

C

45

1011

CVOL

IN

SLVOL

IN

TRIMMER,

VOLUME

TRIMMER,

VOLUME

R-CH

SLVOL OUT

LOUT

CVOL OUT

17

1

3

9

AMP

IC304 (2/2)

ELECTRICAL VOLUME

IC302 (2/2)

VOL1

29

SOUND

CONTROL

OUT1

20

R-CH

+

MUTING

Q232

MUTING
CONTROL
Q333, 334

38

S/W-MUTE

• R-ch is omitted due to same as L-ch.

• SIGNAL PATH

: TUNER

: CD PLAY

: TAPE PLAY

: REC

: VIDEO IN (AUDIO)

: GAME IN (AUDIO)

: GAME IN (VIDEO)

: 5.1CH INPUT

1919

HCD-MG110/MG310AV

5-4. BLOCK DIAGRAM – AMP Section –

J503

PHONE

(Page 19)

(Page 19)

(Page 19)

G

J

H

FRONT
L-CH

REAR
L-CH

CENTER

(HCD-MG310AV)

SURROUND

SURROUND

(HCD-MG110)

AMP

IC308

SWITCH

Q301

D395, 399

D389

DBFB AMP

IC303

DBFB

SWITCH

Q141

DBFB LEVEL

CONTROL

Q142

R-CH

REAR OUTPUT

SELECT SWITCH

IC307

6 12

R-CH R-CH

R-CH

1011

98

R-CH

STK MUTE

STK MUTE

R-CH

R-MUTE

C-MUTE

Q524

MUTING

Q517, 518

MUTING

CONTROL

Q522

MUTING

Q602, 603

MUTING
CONTROL
Q341, 342

MUTING

Q601

MUTING
CONTROL
Q343, 344

POWER AMP

IC501

MUTING

Q501

MUTING

CONTROL

Q502, 516

POWER AMP

IC602

AU +9V

POWER ON

MUTING

Q521

TH501

D513

TERMINAL

DETECT

Q511, 512

PROTECT

DETECT

Q514

+

PROTECTOR

Q505, 508

OVER LOAD

DETECT

Q604, 605

OVER LOAD

DETECT

Q606

D501

OVER LOAD

DETECT

Q506, 507

DC DETECT

Q513, 515

+ + +

+

+ ++

MUTING

Q519, 520

MUTING

CONTROL

Q523

RELAY DRIVE

Q504, 510

RELAY DRIVE

Q503, 509

RY501

F-RELAY

RY502

RY503

HP CHK

J501 (1/2)

+

–

+

–

J501 (2/2)

+

–

+

–

+

–

J502

L

FRONT SPEAKER

IMPEDANCE

R

L

IMPEDANCE

USE 8Ω

R

CENTER

IMPEDANCE

USE 8Ω

USE 8Ω

REAR

SURROUND

(HCD-MG310AV)

SPEAKER

49

SURROUND

(HCD-MG110)

47

DBFB-ON

48

DBFB-H/L

35

REAR

34

FRONT

A-MUTE

STK-MUTE

65

44

STK-MUTE

R-MUTE

23

A-MUTE

R-MUTE

C-MUTE

21

C-MUTE

SYSTEM CONTROLLER

IC801 (4/5)

HP CHK

F-RELAY

40

R-RELAY

55

F-RELAY

45

HP-CHK

• R-ch is omitted due to same as L-ch.

• SIGNAL PATH

: TUNER

2020

5-5. BLOCK DIAGRAM – DISPLAY/POWER SUPPLY Section –

22 – 12

S1 – S34

47 – 43,41 – 24,

LED3 – LED7

HCD-MG110/MG310AV

(HCD-MG310AV)

GRID DRIVE

LED DRIVE

Q721 – 723

89 – 93

Q713 – 717

D703 – 707

(Page 19)

X

F

SPE ANA

FL701

FLUORESCENT

INDICATOR TUBE

VOLUME

DISC

ACCESS

BAND-PASS

4 LINE IN

GRID DRIVE

GRID DRIVE

Q721 – 723

Q721 – 723

FILTER

IC703

ROTARY

ENCODER

RV701

ROTARY

ENCODER

RV702

F1 – F4

4MHz

13L+R

X701

IC801 (5/5)

D708, 736,
D781, 782, 791

CD +3V

81CD POWER

71FM-ON

42POWER STBY

12RESET

82AC CUT

RESET

SWITCH

Q801

+3.3V

REGULATOR

Q102

CD +5V

FL +3.3V

REGULATOR

BU +5V

U-COM +5V

RESET SIGNAL

GENERATOR

IC802

D701, 702

B+ 5V

FM +7V

CONTROL
Q350, 351

D802

D803

D806

B+ SWITCH

Q361, 362

COM +5V

REGULATOR

MOTOR +12V

REGULATOR

REGULATOR

Q802, 803

+5V

IC905

+7V

Q352

AU +9V

+5.6V

CD +8V

D866

+5V

REGULATOR

IC904

+8V

REGULATOR

IC903

+12V

REGULATOR

IC902

+9V

REGULATOR

IC901

(HCD-MG310AV)

VP – 33V

RECT

D961 – 964

RELAY DRIVE

Q901

RECT

D911 – 914

R AMP B+

R AMP B–

F AMP B+

F AMP B–

– 33V

REGULATOR

Q397

TO FLUORESCENT

INDICATOR TUBE

FL701

RECT
D507

RECT
D511

D901
RECT

VF1

VF2

T901

POWER

TRANSFORMER

(MAIN)

T902

POWER

TRANSFORMER

(SUB)

RY901

(AC IN)

LED DRIVE

86, 87, 94, 95

80 – 78, 76

S700

S770

DISPLAY

X802

16MHz

X801

32.768kHz

Q702 – 705, 718

OPEN/CLOSE

30 IIC DATA
29 IIC CLK
43 FL-RESET

74 POWER KEY

73 DISPLAY KEY

36 KB-SDA
20 KB-SCL
37 KB-CTRL

15 XIN

13 XOUT

10 SUBXIN

11 SUBXOUT

S701, 741 – 745,
S750 – 757, 760 – 767,
S771 – 777

S791

CD LID

DETECT

SYSTEM CONTROLLER

4 RMC

LED8, LED9

LED0, LED1,

3, 5 – 10

G8 – G13

99, 100, 2,

G2, G3, G5, G6,

98, 1, 4

G1, G4, G7

DISPLAY CONTROLLER

IC701

17 – 14

75 – 72

BPF1 – BPF4

71 L+R

66 VOL A
67 VOL B

64 JOG A
65 JOG B

82 X0

83 X1

SDA

SCL

J801

KEYBOARD

4

1

5

KEY0 – KEY3

59DOOR SW

60SDA
61SCL
77RSTX

B+ 5V+5V

REMOTE CONTORL

RECEIVER

IC702

2121