DOWNLOAD Sony HCD-RG40 / MHC-DX30 / MHC-RG40 Service Manual ↓ Size: 7.51 MB | Pages: 63 in PDF or view online for FREE

3

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.

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

• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be

damaged by heat.

• 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.

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.

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.

— BACK PANEL —

US, CND models

AEP model

AR, E, E51, SP models

AUS, KR, MX, TH models

4-234-032-6

s

4-234-032-5

s

4-234-091-1

s

4-234-091-7

s

• Abbreviation

CND : Canadian model
AUS

: Australian model

SP

: Singapore model

TH

: Thai model

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6-1. Circuit Board Location ················································ 20
6-2. Block Diagrams  Tuner/CD Section ···························· 21

Main Section ······························································· 22

6-3. Schematic Diagram   Main Section (1/4) ···················· 23
6-4. Schematic Diagram   Main Section (2/4) ···················· 24
6-5. Schematic Diagram   Main Section (3/4) ···················· 25
6-6. Schematic Diagram   Main Section (4/4) ···················· 26
6-7. Printed Wiring Board   Main Section ·························· 27
6-8. Printed Wiring Board   BD Section ····························· 28
6-9. Schematic Diagram   BD Section ································ 29
6-10. Printed Wiring Board   Power AMP Section ··············· 30
6-11. Schematic Diagram   Power AMP Section ·················· 31
6-12. Printed Wiring Board   Panel Section ·························· 32
6-13. Schematic Diagram   Panel Section ···························· 33
6-14. Printed Wiring Board   Key Section ···························· 34
6-15. Schematic Diagram   Key Section ······························· 35
6-16. Printed Wiring Board   Driver Section ························ 36
6-17. Schematic Diagram   Driver Section ··························· 37
6-18. Printed Wiring Board   Trans Section ·························· 38
6-19. Schematic Diagram   Trans Section ···························· 39
6-20. IC Pin Function Description ········································ 40
6-21. IC Block Diagrams ······················································ 42

7-1. Main Section ······························································· 45
7-2. Front Panel Section ····················································· 46
7-3. Main Board Section ····················································· 47
7-4. CD Mechanism Deck Section ····································· 48

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KR

: Korea model

MX

: Mexican model

AR

: Argentina model

E51

: Chilean and Peruvian model

4

1

Connector 

      13p (CN712)

2

Cut the seven melted-connection points

     with a cutting plier.

4

Cut the six melted-connection points

     with a cutting plier.

3

Panel board

5

Key board

Panel board
(ten screw holes)

Key board
(eight screw holes)

Screw hole

In order to re-install the panel board and the key board,
fix them by using the screws (+BVTP 2.6

 

× 

8 ) respectively.

Screw in to the respective screw holes.
Do not tighten the screws excessively.

* The panel board and the key board only are connected to the front panel
  by means of hot-melting the plastics.

Hot melt

5

This section is extracted
from instruction manual.

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1 2 3 4

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8 9 q;

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AUDIO jacks ed
CD qs
CD SYNC wf
Deck A wl
Deck B w;
DIRECTION*

1

 7

DISC 1 – 3 wa
DISC SKIP EX-CHANGE ea
Disc tray 8
DISPLAY 7
EDIT 7
EFFECT ON/OFF 4
ENTER 0
GAME eg
GAME EQ 2
GROOVE 3
KARAOKE PON*

2

 es

MD (VIDEO) qg
MIC jack*

2

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MIC LEVEL control*

2

 wj

MOVIE EQ 9
MUSIC EQ 6
P FILE qa
PHONES jack qk
PLAY MODE 7
PTY/DIRECTION 7
REC PAUSE/START wd
REPEAT 7
SPECTRUM 7
STEREO/MONO 7
TAPE A/B qf
TUNER MEMORY 7
TUNER/BAND qd
VIDEO jack ef
VOLUME control qh

v/V/b/B 5
Z (deck A) wk
Z (deck B) ql
M (fast forward) ws
. (go back) wg
Z OPEN/CLOSE qj
?/1 (power) 1
x (stop) wg
nN (play) wg
X (pause) wg
> (go forward) wg
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*

1

PTY/DIRECTION for
European model

*

2

HCD-DX30 only

6

5

6

7

8

9

0

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1 2 3 4

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CD qj
CLEAR 6
CLOCK/TIMER SELECT 2
CLOCK/TIMER SET 3
D.SKIP ql
EFFECT ON/OFF qa
ENTER qf
GAME qk

MD (VIDEO) 9
P FILE qd
PRESET EQ qg
SLEEP 1
SURROUND 0
TAPE A/B 8
TUNER/BAND qh
VOL +/– 7

v/V/b/B qs
M (fast forward)/TUNING

+ 5

. (go back)/PRESET

– 5

?/1 (power) 4
x (stop) 5
nN (play) 5
X (pause) 5
> (go forward)/PRESET

+ 5

m (rewind)/TUNING – 5

v

V

B

The minute indication flashes.

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

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

Proceed to step 5 when “CLOCK” appears
in the display.

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