HCD-RG66, MHC-RG66 - Sony Audio Service Manual (repair manual)

AEP Model

UK Model

E Model

Australian model

2003K16-1

© 2003.11

• HCD-RG66 is the tuner, deck, CD and

amplifier section in MHC-RG66.

Model Name Using Similar Mechanism

NEW

CD

CD Mechanism Type

CDM58F-K6A

Section

Optical Pick-up Name

KSM-213D

Tape deck

Model Name Using Similar Mechanism

NEW

Section

Tape Transport Mechanism Type

CWL43RR-51

DIN power output (rated)

115 + 115 watts (6 ohms
at 1 kHz, DIN)

Continuous RMS power output (reference)

140 + 140 watts (6 ohms
at 1 kHz, 10% THD)

Music power output (reference)

280 + 280 watts (6 ohms
at 1 kHz, 10% THD)

The following measured at AC 120, 220, 230 –
240 V, 50/60 Hz
DIN power output (rated) 115 + 115 watts (6 ohms

at 1 kHz, DIN)

Continuous RMS power output (reference)

140 + 140 watts (6 ohms
at 1 kHz, 10% THD)

Inputs
MD/VIDEO (AUDIO) IN (phono jacks):

voltage 450/250 mV,
impedance 47 kilohms

GAME (AUDIO) IN (phono jack):

voltage 450 mV,
impedance 47 kilohms

MIC (phone jack) (except for European models):

sensitivity 1 mV,
impedance 10 kilohms

Outputs
PHONES (stereo mini jack):

accepts headphones of
8 ohms or more

Front speaker:

accepts impedance of 6 to
16 ohms

Surround speaker:

accepts impedance of
24 ohms

System

Compact disc and digital
audio system

Laser

Semiconductor laser
(

λ 

=780 nm)

Emission duration:
continuous

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

CD OPTICAL DIGITAL OUT
(Square optical connector jack, rear panel)
Wavelength

660 nm

Output Level

–18 dBm

Recording system

4-track 2-channel stereo

Frequency response

50 – 13,000 Hz (

±

3 dB),

using Sony TYPE I
cassette

FM stereo, FM/AM superheterodyne tuner

Tuning range 87.5 – 108.0 MHz
Antenna FM lead antenna
Antenna terminals 75 ohm unbalanced
Intermediate frequency 10.7 MHz

Tuning range
European and Middle Eastern models:

531 – 1,602 kHz (with the
interval set at 9 kHz)

Other models:

531 – 1,602 kHz (with the
interval set at 9 kHz)
530 – 1,710 kHz (with the
interval set at 10 kHz)

Antenna

AM loop antenna

Antenna terminals

External antenna terminal

Intermediate frequency

450 kHz

Power requirements
AEP and UK models:

230 V AC, 50/60 Hz

Australian model:

230 – 240 V AC, 50/
60 Hz

Singapore model:

120 V, 220 V or 230 –
240 V AC, 50/60 Hz
Adjustable with voltage
selector

Power consumption
AEP and UK models:

220 watts
0.5 watts (at the Power
Saving Mode)

Singapore and Australian models:

220 watts

Dimensions (w/h/d)

Approx. 280 

×

 325 

×

 421 mm

Mass

Approx. 10.5 kg

Supplied accessories:

AM loop antenna (1)
Remote Commander (1)
Batteries (2)
FM lead antenna (1)
Front speaker pads (8)

Design and specifications are subject to change
without notice.

2

·········································································· 3

································································ 5

2-1. Case (Top) ····································································· 5
2-2. CD Door ········································································ 6
2-3. Front Panel Section ······················································· 6
2-4. CD Mechanism Deck (CDM58F-K6A) ························ 7
2-5. Tape Mechanism Deck (CWL43RR-51) ······················ 7
2-6. MIC Board, PANEL Board, REM Board ····················· 8
2-7. KEYBOARD Board ····················································· 8
2-8. Back Panel Section ······················································· 9
2-9. SUB TRANS Board, VIDEO OUT Board,

SENSOR Board, SURROUND Board ·························· 9

2-10. MAIN Board ······························································· 10
2-11. POWER Board ···························································· 10
2-12. TRANS Board ···························································· 11
2-13. BD Board, DRIVER Board ········································ 11
2-14. SPDL  MORTR Board ················································ 12
2-15. Optical Pick-up (KSM-213D) ····································· 12
2-16. MOTOR Board, ADDRESS SENSOR Board ············ 13
2-17. Table (New), Cam (Control) and DC Motor ··············· 13

···································································· 14

······························· 16

······································································ 18

5-1. Circuit Boards Location ·············································· 19

5-1. Circuit Boards Location ·············································· 19
5-2. Block Diagrams –TUNER Section– ··························· 20

MAIN Section ····························································· 21

5-3. Printed Wiring Boards – CD Section (1/2) – ·············· 22
5-4. Printed Wiring Boards – CD Section (2/2) – ·············· 23
5-5. Schematic Diagram – CD Section – ··························· 24
5-6. Printed Wiring Board – MAIN Section – ··················· 25
5-7. Schematic Diagram – MAIN Section (1/4) – ············· 26
5-8. Schematic Diagram – MAIN Section (2/4) – ············· 27
5-9. Schematic Diagram – MAIN Section (3/4) – ············· 28
5-10. Schematic Diagram – MAIN Section (4/4) – ············· 29
5-11. Printed Wiring Boards – PANEL Section – ················ 30
5-12. Schematic Diagram – PANEL Section – ···················· 31
5-13. Printed Wiring Boards – POWER/TRANS Section – 32
5-14. Schematic Diagram – POWER/TRANS Section – ····· 33
5-15. Printed Wiring Board

– SURROUND/KEYBOARD Section – ···················· 34

5-16. Schematic Diagram

– SURROUND/KEYBOARD Section – ···················· 34

5-17. IC PIN FUNCTION DESCRIPTION ························· 38

······················································ 40

6-1. Main Section ······························································· 40
6-2. Front Panel Section ····················································· 41
6-3. MAIN Board Section ·················································· 42
6-4. CD Mechanism Deck Section (CDM58F-K6A) ········· 43

······································· 44

0

0

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.

3

This section is extracted
from instruction manual.

AUDIO jacks wh (29)
CD es (12, 13, 19, 20)
CD SYNC qj (19, 20)
Deck A wd (17, 18)
Deck B qh (17 – 21, 26)
DIRECTION 6 (18 – 20, 26)
DISC 1 – 3 0 (12, 13, 20)
DISC SKIP/EX-CHANGE qa (11,

12)

Disc tray 9 (11)
DISPLAY 6 (17, 24)
EDIT 6 (20)
EFFECT ON/OFF 3 (22)
ENTER qs (11, 13 – 15, 20, 23,

27, 28)

FM MODE 6 (16)
GAME wk (25)
GAME EQ wa (22)
GAME MIXING ws (25)
GROOVE 2 (22)

MD (VIDEO) wl (30)
MIC jack*

1

wg (26)

MIC LEVEL control*

1

wg (26)

MOVIE EQ 7 (22)
MUSIC EQ 4 (22)
P FILE ql (23)
PHONES jack qf
PLAY MODE 6 (12, 13, 20)
REC PAUSE/START qk (19, 20,

26)

REPEAT 6 (12)
SPECTRUM 6 (25)
SURROUND SPEAKER

MODE 8 (21)

TAPE A/B e; (17, 19)
TUNER MEMORY 6 (14, 15)
TUNER/BAND

R

R

ea (14 – 16, 19)

VIDEO jack wj (29)
VOLUME control qd

?/1 (power) 1
v/V/b/B 5
Z OPEN/CLOSE qa
Z (deck B) qg
M w;

. w;

x w;

hH w;

X w;

> w;

m w;

Z (deck A) wf

*

1

Except for European models

1

2345

6

78

9

0

qd

qs

qf

qg

qh

qj

qk

ql

qa

w;

wa

ws

wd

wf

wg

wj

wh

wk

e;

wl

ea

es

4

CD qj (12, 13, 19, 20)
CLEAR 6 (13)
CLOCK/TIMER SELECT 2

(21, 28)

CLOCK/TIMER SET 3 (11, 20,

27)

D.SKIP ql (12)
EFFECT ON/OFF qa (22)
ENTER qf (11, 13 – 15, 20, 23,

27, 28)

GAME qk (25)

MD (VIDEO) 9 (30)
P FILE qd (23)
PRESET +/– 5 (14 – 16)
PRESET EQ qg (22)
SLEEP 1 (27)
SURROUND 0 (23)
TAPE A/B 8 (17, 19)
TUNER/BAND qh (14 – 16, 19)
TUNING +/– 5 (14 – 16)
VOL +/– 7

?/1 (power) 4
M 5

. 5

x 5

nN 5

X 5

> 5

m 5

v/V/b/B qs

5

6

7

8

9

0

qa

qs

1 2 3 4

qd

qf

qg

qh

ql

qk

qj

?/1

v

V

B

The minute indication flashes.

v

V

The clock starts working.

Press CLOCK/TIMER SET on the remote.

Press

v

 or 

V

 repeatedly to select “CLOCK

SET”, then press ENTER.

Do the same procedures as step 3 to 6
above.

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