HCD-DX60AV, HCD-RG70AV, MHC-DX60AV, MHC-RG70AV — Sony Audio Service Manual (repair manual)

Model
HCD-DX60AV HCD-RG70AV MHC-DX60AV MHC-RG70AV
Pages
73
Size
5.62 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-dx60av-hcd-rg70av-mhc-dx60av-mhc-rg70av.pdf
Date

View Sony HCD-DX60AV / HCD-RG70AV / MHC-DX60AV / MHC-RG70AV Service Manual online

SERVICE MANUAL
MINI HI-FI COMPONENT SYSTEM
US Model
AEP Model
HCD-RG70AV
E Model
HCD-DX60AV
SPECIFICATIONS
HCD-DX60AV/RG70AV
Ver 1.2  2003.07
9-873-839-13
Sony Corporation
2003G05-1
Home Audio Company
C
 2003.07
Published by Sony Engineering Corporation
• HCD-DX60AV/RG70AV is the tuner,
deck, CD and amplifier section in MHC-
DX60AV/RG70AV.
Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol 
;
  are trade-
marks of Dolby Laboratories Licensing Corporation.
Model Name Using Similar Mechanism
HCD-DX90
CD
CD Mechanism Type
CDM58B-K6BD38
Section
Base Unit Name
BU-K6BD38
Optical Pick-up Block Name
KSM-213DCP
Optical Pick-up Name
KSS-213D
Tape deck
Model Name Using Similar Mechanism
NEW
Section
Tape Transport Mechanism Type
CWL44RR-31
– Continued on next page –
Photo: HCD-RG70AV
AUDIO POWER SPECIFICATIONS:
(HCD-RG70AV US model only)
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
with 6 ohm loads both channels driven, from
120 – 10,000 Hz; rates 60 watts per channel
minimum RMS power, with no more than 10%
total harmonic distortion from 250 milliwatts to
rated output.
Amplifier section
North American model:
HCD-RG70AV
Front speaker:
Continuous RMS power output (reference)
60 + 60 watts
(6 ohms at 1 kHz,
10% THD)
Total harmonic distortion less than 0.07%
(6 ohms at 1 kHz,
30 watts)
Center speaker:
Continuous RMS power output (reference)
40 watts
(6 ohms at 1 kHz,
10% THD)
Rear speaker:
Continuous RMS power output (reference)
40 + 40 watts
(6 ohms at 1 kHz,
10% THD)
European model:
HCD-RG70AV
Front speaker:
DIN power output (rated) 40 + 40 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
50 + 50 watts (6 ohms at
1 kHz, 10% THD)
Music power output (reference)
95 + 95 watts (6 ohms at 1
kHz, 10% THD)
Center speaker:
DIN power output (rated) 25 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
35 watts (6 ohms at 1 kHz,
10% THD)
Music power output (reference)
65 watts (6 ohms at 1 kHz,
10% THD)
Rear speaker:
DIN power output (rated) 25 + 25 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
35 + 35 watts (6 ohms at
1 kHz, 10% THD)
Music power output (reference)
65 + 65 watts (6 ohms at 1
kHz, 10% THD)
2
HCD-DX60AV/RG70AV
Outputs
PHONES (stereo mini jack):
accepts headphones of 8
ohms or more
FRONT SPEAKER:
accepts impedance of 6 to
16 ohms
REAR SPEAKER:
accepts impedance of 6 to
16 ohms
CENTER SPEAKER:
accepts impedance of 6 to
16 ohms
WOOFER:
voltage 1 V, impedance
1 kilohms
CD player section
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
Tape deck section
Recording system
4-track 2-channel stereo
Frequency response
40 – 13,000 Hz (
±
3 dB),
using Sony TYPE I
cassettes
Wow and flutter
±
0.2% W.Peak (IEC)
0.35% W.RMS (NAB)
±
0.3% W.Peak (DIN)
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range                       87.5 – 108.0 MHz
Antenna
FM lead antenna
Antenna terminals
75 ohm unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
Pan-American model:
530 – 1,710 kHz (with the
interval set at 10 kHz)
531 – 1,710 kHz (with the
interval set at 9 kHz)
European model:
531 – 1,602 kHz (with the
interval set at 9 kHz)
Antenna
AM loop antenna
Antenna terminals
External antenna terminal
Intermediate frequency
450 kHz
General
Power requirements
North American model:
120 V AC, 60 Hz
European model:
230 V AC, 50/60 Hz
Mexican model:
120 V AC, 60Hz
Power consumption
North American model:
170 watts
European model:
150 watts
0.5 watts (at the Power
Saving Mode)
Mexican model:
150 watts
Dimensions (w/h/d)
Approx. 280 
×
 325 
×
 421 mm
Mass
North American model:
Approx. 9.0 kg
European model:
Approx. 10.0 kg
Mexican model:
Approx. 9.5 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.
Mexican model:
HCD-DX60AV
Front speaker:
DIN power output (rated) 45 + 45 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
60 + 60 watts
(6 ohms at 1 kHz, 10%
THD)
Center speaker:
DIN power output (rated) 30 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
40 watts
(8 ohms at 1 kHz, 10%
THD)
Rear speaker:
DIN power output (rated) 30 + 30 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
40 + 40 watts
(6 ohms at 1 kHz, 10%
THD)
Inputs
MD/VIDEO IN (phono jacks):
voltage 250/450 mV,
impedance 47 kilohms
DVD INPUT:
FRONT IN (phono jacks): voltage 450 mV,
impedance 47 kilohms
REAR IN (phono jacks):
voltage 450 mV,
impedance 47 kilohms
CENTER IN (phono jacks):
voltage 450 mV,
impedance 47 kilohms
WOOFER IN (phono jacks):
voltage 450 mV,
impedance 47 kilohms
3
HCD-DX60AV/RG70AV
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.
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.
CAUTION
Use of controls or adjustments or performance of procedures
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
damaged by heat.
Flexible Circuit Board Repairing
• 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.
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP
BLOCK  OR  BASE  UNIT
The laser diode in the optical pick-up block may suffer electro-
static 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 emis-
sion, observe from more than 30 cm away from the objective lens.
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.
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. Follow 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” indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are suit-
able.  (See Fig. A)
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
0.15 
µ
F
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
4
HCD-DX60AV/RG70AV
1.
GENERAL
...................................................................
5
2.
DISASSEMBLY
2-1. Disassembly Flow ...........................................................
8
2-2. Case (Top) .......................................................................
9
2-3. CD Door ..........................................................................
9
2-4. CD Mechanism Deck (CDM58B-K6BD38) .................. 10
2-5. Front Panel Section ......................................................... 10
2-6. Tape Mechanism Deck .................................................... 11
2-7. Back Panel Section .......................................................... 11
2-8. Main Board ...................................................................... 12
2-9. Base Unit (BU-K6BD38) ................................................ 12
2-10. DRIVER Board, MOTOR Board,
ADDRESS SENSOR Board ........................................... 13
3.
TEST MODE
............................................................... 14
4.
ELECTRICAL ADJUSTMENTS
Deck Section ................................................................... 18
Tuner Section .................................................................. 19
CD Section ...................................................................... 20
5.
DIAGRAMS
5-1. Block Diagram  – TUNER/CD Section – ....................... 23
5-2. Block Diagram  – MAIN Section (1/2) – ....................... 24
5-3. Block Diagram  – MAIN Section (2/2) – ....................... 25
5-4. Block Diagram  – DISPLAY/POWER Section – ........... 26
5-5. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 27
5-6. Printed Wiring Board  – BD Board – ............................. 28
5-7. Schematic Diagram  – BD Board – ................................ 29
5-8. Schematic Diagram  – MAIN Board (1/4) – .................. 30
5-9. Schematic Diagram  – MAIN Board (2/4) – .................. 31
5-10. Schematic Diagram  – MAIN Board (3/4) – .................. 32
5-11. Schematic Diagram
– MAIN (4/4)/DIGITAL OUT Boards – ........................ 33
5-12. Printed Wiring Boards
– MAIN/DIGITAL OUT Boards – ................................. 34
5-13. Printed Wiring Boards
– ADDRESS SENSOR/DRIVER/MOTOR Boards – .... 35
5-14. Schematic Diagram
– ADDRESS SENSOR/DRIVER/MOTOR Boards – .... 35
5-15. Printed Wiring Board
– REAR/CENTER AMP Board – ................................... 36
5-16. Schematic Diagram
– REAR/CENTER AMP Board – ................................... 37
5-17. Printed Wiring Boards
– POWER AMP/SENSOR Boards – .............................. 38
5-18. Schematic Diagram
– POWER AMP/SENSOR Boards – .............................. 39
5-19. Printed Wiring Boards  – PANEL/KEY Boards – .......... 40
5-20. Schematic Diagram  – PANEL/KEY Boards – .............. 41
5-21. Printed Wiring Boards  – TRANSFORMER/
SUB TRANSFORMER Boards – ................................... 42
5-22. Schematic Diagram  – TRANSFORMER/
SUB TRANSFORMER Boards – ................................... 43
5-23. IC Pin Function Description ........................................... 50
6.
EXPLODED VIEWS
6-1. Cabinet Section ............................................................... 54
6-2. Front Panel Section ......................................................... 55
6-3. Main Board Section ........................................................ 56
6-4. CD Mechanism Deck Section (CDM58B-K6BD38) ..... 57
6-5. Base Unit Section (BU-K6BD38) .................................. 58
7.
ELECTRICAL PARTS LIST
.................................. 59
TABLE  OF  CONTENTS
5
HCD-DX60AV/RG70AV
SECTION  1
GENERAL
This section is extracted from
instruction manual.
4
Parts Identification
The items are arranged in alphabetical order. Refer to the pages indicated in parentheses for details.
Main unit
w;
wa
qk
qj
ql
qh
qf
qg
ws
wd
wf
wg
wh
wj
wl wk
ef
ed
es
ea
1 2 3 4
7
6
5
9 0
qa
qs
qd
8
e;
AUDIO jacks es (25)
CD qd (10 
— 12, 17, 18)
CD SYNC wg (17, 18)
Deck A e; (16)
Deck B wa (16 
— 19)
DIRECTION*
 
8 (16 — 18)
DISC 1 
— 3 ws (11)
DISC SKIP EX-CHANGE wk
(10, 11)
Disc tray 9 (10)
DISPLAY 8 (10, 12)
DVD 5.1CH wl (24, 25)
EDIT 8 (18)
EFFECT ON/OFF 4 (20)
ENTER qa (9, 10, 12 
— 15,
18, 19, 21, 23, 29)
GAME ef (25)
GAME EQ 2 (19, 20)
GROOVE 5 (19)
MD (VIDEO) qh (24)
MOVIE EQ 0 (19, 20)
MUSIC EQ 7 (19, 20)
P FILE qs (21)
PHONES jack ql
PLAY MODE 8 (11, 12)
PRO LOGIC 3 (20)
PTY/DIRECTION 8 (15 
— 18)
REC PAUSE/START wf (17)
REPEAT 8 (11)
SPECTRUM 8 (22)
STEREO/MONO 8 (14)
TAPE A/B qg (16, 17)
TUNER MEMORY 8 (13)
TUNER/BAND qf (13, 14, 17)
VIDEO jack ed (25)
VOLUME control qj
BUTTON DESCRIPTIONS
?/1 (power) 1
v/V/b/B 6
Z OPEN/CLOSE qk
Z (deck B) w;
M (fast forward) wd
+ wd
. (go back) wh
> (go forward) wh
X (pause) wh
hH (play) wh
x (stop) wh
m (rewind) wj
— wj
Z (deck A) ea
* PTY/DIRECTION for European
model

Download Sony HCD-DX60AV / HCD-RG70AV / MHC-DX60AV / MHC-RG70AV Service Manual (Repair Manual)

Here you can view online or download Sony HCD-DX60AV / HCD-RG70AV / MHC-DX60AV / MHC-RG70AV Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sony HCD-DX60AV / HCD-RG70AV / MHC-DX60AV / MHC-RG70AV Audio. Information contained in Sony HCD-DX60AV / HCD-RG70AV / MHC-DX60AV / MHC-RG70AV service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).