HCD-RG60
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HCD-RG60
SERVICE MANUAL
Ver 1.0 2001.07
• HCD-RG60 is the tuner, deck, CD
and amplifier section in MHCRG60.
CD CD Mechanism Type CDM58B-K6BD38
Section Base Unit Name BU-K6BD38
Tape deck
Section
AEP Model
UK Model
Model Name Using Similar Mechanism HCD-DX30/RG40
Optical Pick-up Name KSM-213DCP
Model Name Using Similar Mechanism HCD-DX30/RG40
SPECIFICATIONS
Amplifier section
DIN power output (rated) 80 + 80 watts
Continuous RMS power output (reference)
Music power output (reference)
Inputs
MD/VIDEO (AUDIO) IN (phono jacks):
GAME (AUDIO) IN (phono jack):
MIC (mini jack): sensitivity 1 mV,
Outputs
PHONES (stereo mini jack):
FRONT SPEAKER: accepts impedance of 6 to
SURROUND SPEAKER
(6 ohms at 1 kHz, DIN)
100 + 100 watts (6 ohms
at 1 kHz, 10% THD)
180 + 180 watts (6 ohms
at 1 kHz, 10% THD)
voltage 450/250 mV,
impedance 47 kilohms
voltage 450 mV,
impedance 47 kilohms
impedance 10 kilohms
accepts headphones of
8 ohms or more
16 ohms
accepts impedance of 6 to
16 ohms
CD player section
System Compact disc and digital
audio system
Laser Semiconductor laser
(λ =780 nm)
Emission duration:
continuous
Laser output Max. 44.6 µW*
*This output is the value
measured at a distance of
200 mm from the
objective lens surface on
the Optical Pick-up Block
with 7 mm aperture.
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
— Continued on next page —
9-873-193-01
2001G0200-1
© 2001.7
MINI HI-FI COMPONENT SYSTEM
Sony Corporation
Home Audio Company
Shinagawa Tec Service Manual Production Group
HCD-RG60
Tape deck section
Recording system 4-track 2-channel stereo
Frequency response 40 – 13,000 Hz (±3 dB),
using Sony TYPE I
cassette
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
Antenna AM loop antenna
Antenna terminals External antenna terminal
Intermediate frequency 450 kHz
531 – 1,602 kHz (with the
interval set at 9 kHz)
General
Power requirements
Power consumption
Dimensions (w/h/d)
Mass
Supplied accessories: AM loop antenna (1)
Design and specifications are subject to change
without notice.
230 V AC, 50/60 Hz
175 watts
0.5 watts (at the Power
Saving Mode)
Approx. 280 x 325 x 421 mm
Approx. 10.0 kg
Remote Commander (1)
Batteries (2)
FM lead antenna (1)
Front speaker pads (8)
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 pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.
Laser component in this product is capable
of emitting radiation exceeding the limit for
Class 1.
This appliance is classified as a CLASS 1 LASER product. The
CLASS 1 LASER PRODUCT MARKING is located on the rear
exterior.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation 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.
2
TABLE OF CONTENTS
1. SERVICE NOTE .............................................................. 4
2. GENERAL ......................................................................... 5
3. DISASSEMBY ................................................................. 7
4. TEST MODE................................................................... 13
5. ELECTRICAL ADJUSTMENTS .............................. 17
6. DIAGRAMS
6-1. Circuit Board Location ..................................................... 19
6-2. Block Diagrams –Tuner Section– ................................... 20
Block Diagrams –Main Section– .................................... 21
6-3. Printed Wiring Board –BD Section– ............................... 22
6-4. Schematic Diagram –BD Section– .................................. 23
6-5. Printed Wiring Board –Main Section– ............................ 24
6-6. Schematic Diagram –Main Section (1/5) – ..................... 25
6-7. Schematic Diagram –Main Section (2/5) – ..................... 26
6-8. Schematic Diagram –Main Section (3/5) – ..................... 27
6-9. Schematic Diagram –Main Section (4/5) – ..................... 28
6-10. Schematic Diagram –Main Section (5/5) – ..................... 29
6-11. Printed Wiring Board –Power AMP Section– ................. 30
6-12. Schematic Diagram –Power AMP Section– ..................... 31
6-13. Printed Wiring Board –Panel Section– ............................ 32
6-14. Schematic Diagram –Panel Section– ............................... 33
6-15. Printed Wiring Board –Trans Section– ............................ 34
6-16. Schematic Diagram –Trans Section– ............................... 35
6-17. Printed Wiring Board –Driver Section– ........................... 36
6-18. Schematic Diagram –Driver Section– .............................. 36
6-19. IC Pin Function Description ............................................. 37
6-20. IC Block Diagrams ............................................................ 40
HCD-RG60
7. EXPLODED VIEWS
7-1. Main Section..................................................................... 43
7-2. Front Panel Section .......................................................... 44
7-3. Chassis Section ................................................................. 45
7-4. CD Mechanism Deck Section .......................................... 46
8. ELECTRICAL PARTS LIST ...................................... 47
3
HCD-RG60
d
SECTION 1
SERVICE NOTE
REMOVING THE PANEL BOARD AND THE KEY BOARD
* The panel board and the key board only are connected to the front panel
by means of hot-melting the plastics.
3
Panel board
1
Connector
13p (CN712)
5
Key boar
2
Cut the seven melted-connection points
with a cutting plier.
Note for installing the panel board and the key board
Panel board
(ten screw holes)
4
Cut the six melted-connection points
with a cutting plier.
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
Screw in to the respective screw holes.
Do not tighten the screws excessively.
×
8 ) respectively.
Hot melt
4
Main unit
1234 6589q;qaqs7
eg
ef
ed
ea
HCD-RG60
SECTION 2
GENERAL
This section is extracted
from instruction manual.
qd
qf
qg
qh
qj
qk
wl
AUDIO jacks ed
CD qs
CD SYNC wf
Deck A wl
Deck B w;
DIRECTION*
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
1
7
MD (VIDEO) qg
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
ql
w;
wawswdwfwgwhwk
BUTTON DESCRIPTIONS
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
m (rewind) wh
1
PTY/DIRECTION for
*
European model
5
HCD-RG60
Remote Control
ql
qk
qj
qh
qg
qf
qd
12 34
5
6
7
8
9
0
qa
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
Setting the time
1 Turn on the system.
2 Press CLOCK/TIMER SET on the
remote.
Proceed to step 5 when “CLOCK” appears
in the display.
3 Press v or V repeatedly to select “SET
CLOCK”.
4 Press ENTER.
5 Press v or V repeatedly to set the hour.
qs
BUTTON DESCRIPTIONS
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
6 Press B.
The minute indication flashes.
7 Press v or V 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.
6
Note : Disassemble the unit in the order as shown below.
)
Case (Side-R, Side-L, Top)
Set
CD door
HCD-RG60
SECTION 3
DISASSEMBLY
Front panel section
CD mechanism deck
(CDM58B)
Chassis section
Base unit, BD board
Driver board, Moter board, Address sensor board
Sensor board, Sub trans board, Video out board, Back panel,
Surround board, DC fan, Power transformer (Trans board)
Main board, Power amp board
Note : Follow the disassembly procedure in the numerical order given.
3-1. CASE (SIDE-R, SIDE-L, TOP)
qs
Case (Top)
qd
Key boardPanel boardTape mechanism deck
qa
Four screws (+BVTP 3
×
10)
6
Two screws (Case 3 TP2)
7
Screw (Case 3 TP2)
9
(+BVTT 3
Case (Side-L)
Screw
×
8
Screw
(+BVTP 3
8)
q;
×
10)
qs
5
Case (Side-R)
1
Two screws
(Case 3 TP2)
2
Screw (Case 3 TP2)
3
Screw
(+BVTP 3
4
Screw
(+BVTT 3
×
×
10
8)
7
HCD-RG60
3-2. CD DDOR
CD mechanism deck (CDM58B)
1
Turn the pulley to the direction of arrow.
pulley
Front panel side
2
Pull-out the disc tray.
CD door
3
3-3. FRONT PANEL SECTION
CD mechanism deck (CDM58B)
2
Connector
(CN701)
4
Screw (+BVTP 3
×
qd
10)
5
6
Wire (flat type)(CN2)
8
Screw
(+BVTP 3
qs
×
7
(CN714)
1
Wire (flat type)
(CN102)
10)
3
Screw
(+BVTP 3
9
Connector (A Deck)
Connector
×
10)
Chassis section
q;
Connector (B Deck)
Front panel section
qa
Three screws (+BVTP 3
× 6
)
8
3-4. TAPE MECHANISM DECK
)
2
Tape mechanism deck
1
Six
screws
(+BVTP 2.6
HCD-RG60
×
8
3-5. PANEL BOARD
1
Volume knob
2
Vol knob ring
3
6
Panel board
4
Connector
(CN712)
5
Cut the seven melted-connection points with a cutting plier.
Note: When attching the panel board,
refer to "Service Note" on page 4.
9
HCD-RG60
3-6. KEY BOARD
2
Key board
1
Cut the six melted-connection points with a cutting plier.
Note: When attching the Key board,
refer to "Service Note" on page 4.
3-7. SENSOR BOARD, SUB TRANS BOARD, VIDEO OUT BOARD, BACK PANEL, SURROUND BOARD,
DC FAN, POWER TRANSFORMER (TRANS BOARD)
5
qa
2
4
Sensor board
3
(+BVTP 3
Trans board
wa
Connector (CN915)
wd
(+BVTT 4
Video out board
Cover (Duct)
Screw
×
Two screws
×
10)
ws
Two screws
(+BVTT 4
6)
7
(CN903)
9
board
8
Tw o
screws
(+BVTP 3
×
6)
Connector (CN2)
6
Connector
(CN901)
Connector
Sub trans
×
10)
w;
Connector
(CN504)
qg
Connector
(CN508)
qj
Surround
board
Back panel
qf
q;
Screw (+BVTP 3
1
(+BVTP 3
ql
DC fan (M961)
Two screws
×
qh
Two screws
(+BVTP 3
qd
(+BVTP 3
qs
(+BVTT 3
×
10)
10)
×
Five screws
qk
Two screws
(+BVTP 3
Two screws
10)
×
×
×
10)
10)
6)
10
wf
Power
(T911)
transformer
3-8. MAIN BOARD, POWER AMP BOARD
d
6
Two screws (+BVTT 3
4
Three screws (+BVTT 3
5
Power amp
3
Two screws (+BVTP 3
board
×
16)
×
6)
×
HCD-RG60
7
6)
Heat sink
Main board
2
Main boar
3-9. BASE UNIT, BD BOARD
qs
Two insulators
8
Two stoppers (BU)
2
Holder (BU) assy
Base unit
qa
1
Two screws (+BVTT 3
1
Screw (+PTPWH M2.6)
q;
Screw (DIA. 12)
qs
Two insulators
9
Tw o
screws (+PTPWH M2.6)
×
6)
7
Two screws (+BVTP 2.6
6
BD board
5
Screw (+BVTP 2.6
×
8)
4
Wire (flat type) 16p (CN102)
Wire (flat type) 19p (CN101)
×
3
8)
11
HCD-RG60
3-10. DRIVER BOARD, MOTOR BOARD AND ADDRESS SENSOR BOARD
q;
qa
Tray
3
Wire (flat type)
8p (CN702)
2
Driver board
Screw (+PTPWH 2.6
qs
Screw (+BVTP 2.6
8
×
Motor board
×
8)
8)
4
Two screws (+BVTP 2.6
6
Wire (flat type) 8p (CN721)
5
Remove the two solderings of motor.
qd
Address sensor board
7
×
8)
Connector 4p (CN722)
1
Screw (+BVTP 2.6
9
Pull-out the disc tray.
×
8)
12
SECTION 4
TEST MODE
HCD-RG60
[MC Cold Reset]
• The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returning
the set to the customer.
Procedure:
1. Press three buttons x , ENTER , and ?/1 simultaneously.
2. The fluorescent indicator tube displays “COLD RESET” and
the set is reset.
[CD Ship Mode]
• This mode moves the pickup to the position durable to vibra-
tion. Use this mode when returning the set to the customer after
repair.
Procedure:
1. Press 1/u button to turn the set ON.
2. Press CD button and 1/u button simultaneously until
“STANDBY” appears.
3. When you releaset he buttons, a message “LOCK” is displayed
on the fluorescent indicator tube, and the CD ship mode is set.
[MC Hot Reset]
• This mode resets the set with the preset data kept stored in the
memory. The hot reset mode functions same as if the power
cord is plugged in and out.
Procedure:
1.
Press three buttons x , ENTER , and DISPLAY simultaneously.
2. The fluorescent indicator tube becomes blank instantaneously,
and the set is reset.
[CD Service Mode]
• This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the pickup.
Procedure:
1. Press ?/1 button to turn the set ON.
2. Select the function “CD”.
3. Press three buttons x , ENTER , and OPEN/CLOSE simul-
taneously.
4. The CD service mode is selected.
5. With the CD in stop status, continue to press > to move the
pickup to outside track, continue to press . to inside track.
6. To exit from this mode, perform as follows:
1) Move the pickup to the most inside track.
2) Press three buttons in the same manner as step 2.
Note: • Always move the pickup to most inside track when exiting from
this mode. Otherwise, a disc will not be unloaded.
• Do not run the sled motor excessively, otherwise the gear can be
chipped.
[Change-over of AM Tuner Step between 9 kHz and
10 kHz]
• A step of AM channels can be changed over between 9 kHz and
10 kHz.
Procedure:
1. Press ?/1 button to turn the set ON.
2. Select the function “TUNER”, and press TUNER/BAND
button to select the BAND “AM”.
3. Press ?/1 button to turn the set OFF.
4. Press ENTER and ?/1 buttons simultaneously, and the display
of fluorescent indicator tube changes to “AM 9 k STEP” or
“AM 10 k STEP”, and thus the channel step is changed over.
[GC Test Mode]
• This mode is used to check the software version, FL tube, LED,
keyboard, headphone and volume.
Procedure:
1. Press three buttons x , ENTER and DISC 2 simultaneously.
2. LEDs and fluorescent indicator tube are all turned on.
3. When ENTER and DISC2 are pressed at the same time, the
key number check mode starts up. In this mode, the key numbers
of each key series are displayed.
4. In the key check mode, the fluorescent indicator tube displays
“KEY 000”. Each time a button is pressed.
5. When ENTER and DISC2 are pressed at the same time, the
key count check mode starts up. In this mode, the message “KEY
CNT @@” is displayed on the FL display tube. When each
button is pressed, the key row number is incremented first. Then
the key value is then incremented. However, one the button is
pressed, the key value cannot be counted.
6. When ENTER and DISC2 are pressed at the same time, the
headphones check mode starts up. In this mode, the message
“H_P ON” is displayed when the headphones are inserted. When
the headphones are not inserted. the message “H_P OFF” is
displayed.
7. When ENTER and DISC2 are pressed at the same time, the
volume check mode starts up. In this mode, the message
“VOLUME FLAT” is displayed on the FL display tube. When
the volume control knob is rotated in the positive (+) direction,
the message “VOLUME UP” is displayed. When the volume
control knob is rotated in the negative (-) direction, the message
“VOLUME DOWN” is displayed.
8. In order to quit the mode, either press ENTER and DISC2 at
the same time or press the three buttons at the same time as in
step 1.
9. To exit from this mode, press three buttons in the same manner
as step 1, or disconnect the power cord.
13
HCD-RG60
[MC Test Mode]
• This mode is used to check operations of the respective sections
of Amplifier, TUNER, CD and Tape.
Procedure:
1. Press the ?/1 button to turn on the set.
2. Press the three buttons of x , ENTER and DISC 3
simultaneously.
3. A message “TEST MODE” appears on the FL display tube.
• The messages VACS1 to VACS5 are displayed when the VACS
is changed in this mode.
• The number of repeats of TAPE and CD is set to the infinite
number as the default setting.
4 When v (CURSOR UP) button is pressed, GEQ increases to
its maximum and a message “GEQ MAX” appears.
5. When V (CURSOR DOWN) button is pressed, GEQ decreases
to its minimum and a message “GEQ MIN” appears.
6. When b (CURSOR LEFT) or B (CURSOR RIGHT) button
is pressed, GEQ is set to flat and a message “GEQ FLAT”
appears.
7. In the test mode, the default-preset channel is called even when
the TUNER is selected and an attempt is made to call the preset
channel that has been stored in memory, by operating the Shuttle
knob. (It means that the memory is cleared.)
8. When a tape is inserted in the Deck B and the TAPE B function
is selected, and when the REC PAUSE/START button is
pressed twice, recording starts.
The VIDEO function is selected automatically as the input
source.
9. Select the desired loop by pressing the PLAY MODE button
in the TAPE B function. Insert a test tape AMS-110A or AMSRO to Deck A.
10. Press the SPECTRUM button to enter the AMS test mode.
11. After a tape is rewound first, the FF AMS is checked, and the
mechanism is shut off after detecting the AMS signal twice.
12. Then the REW AMS is checked and the mechanism is shut off
after detecting the AMS signal twice.
13. When the check is complete, a message of either OK or NG
appears.
14. When the two buttons of SPECTRUM and DISC1 are pressed
at the same time in any function modes, either the “VACS ON”
display to enable the VACS function or the “VACS OFF” display
to disable the VACS function can be selected.
15. When you want to exit this mode, press the ?/1 button twice.
The cold reset is enforced at the same time.
[Microprocessor version display]
• If the following operation is performed during the POWER OFF
in the modes other than the POWER SAVE mode (i.e., while the
Demo display shows the watch time),
1. When three buttons of STOP , ENTER , V (CUSOR DOWN)
are pressed at the same time, the MC and the GC microprocessor
version numbers are displayed as “M1.00 G1.00”.
2. When three buttons of STOP , ENTER , v (CUSOR UP) are
pressed at the same time, the model name and destination are
displayed as “BG1 AS1A3”.
14
[Aging Mode]
This mode can be used for operation check of CD section and tape deck section.
• If an error occurred:
The aging operation stops and display status.
• If no error occurs:
The aging operation continues repeatedly.
1. Operating method of Aging Mode
Turn on the main power and select “CD” of the function.
1) Set a disc in DISC1 tray. Select ALL DISC CONTINUE, and REPEAT OFF.
2) Load the tapes recording use into the decks A and B respectively.
3) Press three buttons x , ENTER , and
DISC SKIP EX-CHANGE simultaneously.
4) Aging operations of CD and tape are started at the same time.
5) To exit the aging mode, perform [MC Cold Reset].
3. Aging Mode in CD section
1) Display state
• No error occurs
Display
AGING[*][*][*][*]
HCD-RG60
Note:
[*][*][*][*]
Error display
E ** s ## $$ %%
1234 5
1 **
2 s
3 ##
4 $$
5 %%
: Number of aging operations
The error No. 00 indicates the newest error. As the error No. increases, it means the older error.
When you want to retrieve the error history, press the PLAY MODE button in the case of mechanism error.
Or press the REPEAT button in the case of NO DISC error.
M: Mechanism error
Don’t care
High order digits only
D: Stopped during closing due to problems other than mechanism.
E: Stopped during opening due to problems other than mechanism.
C: Stopped during chucking due to problems other than mechanism.
F: Stopped during EX-opening due to problems other than mechanism.
Emergency related errors (High order digits only)
1: Stopped during chuck-up
2: Stopped during chuck-down
3: Time out by EX-OPEN
5: Time out by EX-CLOSE
D: No disc error
01: FOCUS ERROR
02: GFS ERROR
03: SETUP ERROR
01: NO DISC judgment without chucking retry
02: NO DISC judgment after chucking retry
Status at the time of NO DISC judgment
(High order digits only)
1: STOP
2: SETUP
3: TOC READ
4: ACCESS
5: PLAY BACK
6: PAUSE
7: MANUAL SEARCH (PLAY)
8: MANUAL SEARCH (PAUSE)
• When the buttons x , ENTER and DISC 1 are pressed simultaneously, number of time of the mechanism error and the NO DISC error
can be checked.
Display: EMC**EDC** **: Number of times of error (Maximum three times)
EMC: Mechanism error
EDC: NO DISC error
• When aging operation is complete, be sure to perform the MC Cold Reset to reset the error history.
15
HCD-RG60
2) Operation during aging mode
In the aging mode, the program is executed in the following
sequence.
(1) The disc tray opens and closes.
(2) The mechanism accesses DISC 2 and makes an attempt to
read TOC. However, since there are no discs, a message
“CD2 NO DISC” appears.
(3) The mechanism accesses DISC 3 and a message “CD3 NO
DISC” appears.
(4) The disc tray turns to select a disc1.
(5) A disc is chucked.
(6) TOC of disc is read.
(7) The pickup accesses to the track 1, and playing 2 seconds.
(8) The pickup accesses to the last track, and playing 2 seconds.
(9) Every time when an aging operation of step 1 to step 8 is
complete, the display “AGING[*][*][*][*]” value increases
as the number of aging operations is counted up.
(10) Returns to step 1.
3. Aging Mode in Tape Deck section
1) Display state
• No error occurs
Display action now
• Error occurred
Display action last time
NO. Display action Action contents Final timing
TAPE A AG-6 Rewind the TAPE A
1
TAPE B AG-1 Rewind the TAPE B
2 TAPE A AG-2 FWD play the TAPE A 2 minutes playing
3 TAPE A AG-3 F.F. the TAPE A
4 TAPE A AG-4 REV play the TAPE A 2 minutes playing
5 TAPE A AG-5 Rewind the TAPE A The top of tape
6 TAPE B AG-2 FWD play the TAPE B 2 minutes playing
7 TAPE B AG-3 F.F. the TAPE B
8 TAPE B AG-4 REV play the TAPE B 2 minutes playing
9 TAPE B AG-5 Rewind the TAPE B The top of tape
The top of tape
20 second FF or the end
of tape
20 second FF or the end
of tape
2) Operation during aging mode
In the aging mode, the program is executed in the following
sequence.
(1) Rewind is executed up to the top of tape A and B.
(2) A tape on FWD side is played for 2 minutes.
(3) FF is executed up to either made for 20 second or the end of
tape.
(4) B tape is reversed, and the tape on REV side is played for 2
minutes.
(5) Rewind is executed up to the top of tape.
(6) Returns to step 2, and repeat steps from 2 to 5.
[Function Change Mode]
* elect either VIDEO or MD of the external FUNCTION input.
Procedure:
1. Turn on the power.
2. Press the two buttons MD (VIDEO) and ?/1 at the same
time.
The main power is turned on and the other function of the
previous function is selected and displayed. “MD” or
“VIDEO”.
16
SECTION 5
ELECTRICAL ADJUSTMENTS
HCD-RG60
FM Tuned Level Adjustment
FM RF Signalgenerator
75
Ω
coaxial
set
Carrier frequency : 98 MHz
Modulation : AUDIO 1 kHz, 75 kHz
deviation (100%)
Output level : 28 dB (at 75
Ω
open)
FM ANTENNA terminal
(TM101)
Procedure:
1. Supply a 98 MHz signal at 28 dB from the ANTENNA terminal.
2. Tune the set to 98 MHz.
3. Adjust RV101 to the point (moment) when the TUNED
indicator will change from going off to going on.
Adjustment Location: MAIN board
Null Adjustment
FM RF Signalgenerator
75
Ω
coaxial
set
Carrier frequency : 98 MHz
Modulation : AUDIO 1 kHz, 75 kHz
deviation (100%)
Output level : 60 dB (at 75
Ω
open)
FM ANTENNA terminal
(TM101)
CD SECTION
Note :
1. CD Block is basically designed to operate without adjustment.
Therefore, check each item in order given.
2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10MΩ impedance.
4. Clean the object lens by an applicator with neutral detergent
when the signal level is low than specified value with the
following checks.
S-Curve Check
Oscilloscope
BD board
TP(FEO)
TP(VC)
Procedure :
1. Connect oscilloscope to TP (FEO).
2. Connect between TP (FEI) and TP (VC) by lead wire.
3. Connect between TP (AGCCON) and TP (D GND) by lead wire.
4. Turn Power switch on.
5. Load a disc (YEDS-18) and actuate the focus search. (In
consequence of open and close the disc tray, actuate the focus
search)
6. Confirm that the oscilloscope waveform (S-curve) is
symmetrical between A and B. And confirm peak to peak level
within 4 ±1 Vp-p.
S-curve waveform
symmetry
Procedure:
1. Supply a 98 MHz signal at 60 dB from the ANTENNA terminal.
2. Tune the set to 98 MHz.
3. Measure voltage between pin 21 and pin 23 of IC 101. Adjust
T101 ubtil the voltage becomes 0 V.
Adjustment Location: MAIN board
Adjustment Location
[MAIN BOARD] Component side
T101:NULL
T101
IFT101
RV101
T102
RV101:FM TUNED LEVEL
RV661:TAPE SPEED
RV661
A
within 4 ±1Vp-p
B
7. After check, remove the lead wire connected in step 2 and 3.
Note : • Try to measure several times to make sure than the ratio
of A : B or B : A is more than 10 : 7.
• Take sweep time as long as possible and light up the
brightness to obtain best waveform.
RF Level Check
oscilloscope
BD board
TP(RF)
TP(VC)
Procedure :
1. Connect oscilloscope to TP (RF).
2. Connect between TP (AGCCON) and TP (D GND) by lead wire.
3. Turned Power switch on.
4. Load a disc (YEDS-18) and playback.
5. Confirm that oscilloscope waveform is clear and check RF signal
level is correct or not.
6. After check, remove the lead wire connected in step 2.
17
HCD-RG60
e
)
r
Note : Clear RF signal waveform means that the shape “ ◊ ” can be clearly
distinguished at the center of the waveform.
RF signal waveform
VOLT/DIV : 200mV
TIME/DIV : 500ns
level : 1.45 ± 0.3Vp-p
E-F Balance (1 Track jump) Check
oscilloscop
BD board
TP(TEO)
TP(VC)
Procedure :
1. Connect oscilloscope to TP (TEO) and TP (VC).
2. Turned Power switch on.
3. Load a disc (YEDS-18) and playback the number five track.
4. Press the gG button. (Becomes the 1 track jump mode.)
5. Confirm that the level B and A (DC voltage) on the oscilloscope
waveform.
1 track jump waveform
center of
waveform
Adjustment Location:
[BD BOARD] (Conductor Side)
TP
TP
(AGCCON)
IC103
TP
(RF)
24
TP
(FEI)
1
40
41
12
TP
(TEO)
(FEO)
TP
(VC)
TP
(XPCK)
2021
IC101
61
60
TP
(D GND)
1
80
B
0V
level=1.3±0.6Vp-p
Specified level: –– × 100=less than ±22%
A
B
symmetry
A (DC voltage
6. After check, remove the lead wire connected in step 1.
RF PLL Free-run Frequency Check
Procedure :
1. Connect frequency counter to test point (XPCK) with lead wire.
BD board
TP (XPCK)
frequency counte
2. Turned Power switch on.
3. Put the disc (YEDS-18) in to play the number five track.
Confirm that reading on frequency counter is 4.3218MHz.
18
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