Sony HCD-RG295 / HCD-RG495 / HCD-RG595 / MHC-RG295 / MHC-RG495 / MHC-RG595 Service Manual ▷ View online
17
HCD-RG295/RG495/RG595
VERSION DISPLAY MODE
This mode is used to check the model, destination and software
version.
Procedure:
version.
Procedure:
1. Press the
I
/1
button to turn the power on.
2. Press three buttons of
x
,
u
and [DISC 2] simultaneously.
3. Fluorescent indicator tube, and LEDs are all turned on.
4. Press the [REC PAUSE/START] button to display the software
4. Press the [REC PAUSE/START] button to display the software
version and year, month, day of the software creation.
5. Press the [CD SYNC] button to display the model and destination.
6. To release this mode, press three buttons of
6. To release this mode, press three buttons of
x
,
u
and
[DISC 2] simultaneously.
CD ERROR CODE DISPLAY MODE
This mode can be used for error code display of CD section.
Procedure:
Procedure:
1. Press the
I
/1
button to turn the power on.
2. Press the [CD] button to select “CD”.
3. Press three buttons of
3. Press three buttons of
x
, [CD] and [DISC 1] simultaneously.
4. When this mode is activated, mechanism deck error code is
displayed on the fluorescent indicator tube.
5. Press the [REC PAUSE/START] button to changed over between
optical pick-up error code display mode and mechanism deck
error code mode.
error code mode.
6. Turn the multi jog knob to change over display of error history.
7. To release this mode, press the
7. To release this mode, press the
I
/1
button to turn the power
off.
1. Mechanism Deck Error Code Mode
When this mode is entered, mechanism deck error code is displayed
with the 10-character format on the fluorescent indicator tube.
with the 10-character format on the fluorescent indicator tube.
The first digit from the left indicates:
The first digit from the left indicates which mode the error history
is. In the mechanism deck error code mode, “M” is displayed on
the fluorescent indicator tube.
The first digit from the left indicates which mode the error history
is. In the mechanism deck error code mode, “M” is displayed on
the fluorescent indicator tube.
The second digit from the left indicates:
(Error history number display)
The second digit from the left indicates which order the error history
is. “1” indicates the latest error history, and each time the number
increases by one, the error history goes back to one-previous error.
(Error history number display)
The second digit from the left indicates which order the error history
is. “1” indicates the latest error history, and each time the number
increases by one, the error history goes back to one-previous error.
The third and 4th digit from the left indicates:
(Error status display)
The third and 4th digit from the left indicates which error status is
indicated.
(Error status display)
The third and 4th digit from the left indicates which error status is
indicated.
Display
Status
0
0
No error
0
8
Table operation time-out (Table does not move to the target
position within the specified time)
1
6
In the chucking down operation, the operation was retried
by the maximum number of times but the operation could
not be completed
1
7
In the chucking up and down operation, the reverse
recovery processing was attempted but it could not be
recovered
1
8
In the chucking up operation, the operation was retried by
the maximum number of times but the operation could not
be completed
2
0
Loading operation time-out (Table does not move to the
target position within the specified time)
2
2
As the chuck was in the ex-open status at the initialization,
the closing was attempted but could not be completed
The 5th and 6th digit from the left indicates:
(Present status display)
The 5th and 6th digit from the left indicates which operating status
when an error occurred is indicated.
(Present status display)
The 5th and 6th digit from the left indicates which operating status
when an error occurred is indicated.
Display
Status
0
1
Open completion status
0
2
From open status, the movement to chucking down position
is under way
0
3
From chucking down position, the open operation is under
way
0
4
Chucking down completion status
1
0
The chucking down operation is under way
1
1
The chucking up operation is under way
1
2
Close completion status
1
3
From close status, the ex-open operation is under way
1
4
From ex-open status, the close operation is under way
1
8
Ex-pen completion status
The 7th and 8th digit from the left indicates:
(Motor status display)
The 7th and 8th digit from the left indicates which motor output
status when an error occurred is indicated.
(Motor status display)
The 7th and 8th digit from the left indicates which motor output
status when an error occurred is indicated.
Display
Status
×
0
No table motor output
×
1
Table motor forward output
×
2
Table motor backward output
×
3
Table motor break output
0
×
No loading motor output
1
×
Loading motor forward output
2
×
Loading motor backward output
3
×
Loading motor break output
The 9th and 10 th digit from the left indicates:
(Tray status display)
The 9th and 10th digit from the left indicates which target processing
when an error occurred is indicated.
(Tray status display)
The 9th and 10th digit from the left indicates which target processing
when an error occurred is indicated.
Display
Status
0
1
Open operation
1
2
Close operation
1
8
Ex-open operation
18
HCD-RG295/RG495/RG595
5 REPEAT LIMIT CANCEL MODE
Number of repeat for CD playback is 5 times when the repeat mode
is “REPEAT”. This mode is used to enables CD to repeat playback
for limitless times.
Procedure:
is “REPEAT”. This mode is used to enables CD to repeat playback
for limitless times.
Procedure:
1. Press the
I
/1
button to turn the power on.
2. Press the [CD] button to select “CD”.
3. Press three buttons of
3. Press three buttons of
x
, [CD] and
u
simultaneously.
4. The message “LIMIT OFF” is displayed on the fluorescent
indicator tube momentarily, CD repeat 5 limit is cancelled.
CD POWER MANAGE
This mode is used to changed over CD power on/off for decreasing
of reception noise in the tuner mode.
Procedure:
of reception noise in the tuner mode.
Procedure:
1. Press the
I
/1
button to turn the power on.
2. Press the [CD] button to select “CD”.
3. Press the
3. Press the
I
/1
button to turn the power off.
4. Press two buttons of
x
and
I
/1
simultaneously.
5. The message “CD POWER ON” or “CD POWER OFF” is
displayed on the fluorescent indicator tube, and CD power
on/off changed over in the tuner mode.
on/off changed over in the tuner mode.
2. Optical Pick-up Error Code Mode
When this mode is entered, optical pick-up error code is displayed
with the 8-character format on the fluorescent indicator tube.
with the 8-character format on the fluorescent indicator tube.
The first digit from the left indicates:
The first digit from the left indicates which mode the error history
is. In the optical pick-up error code mode, “D” is displayed on the
fluorescent indicator tube.
The first digit from the left indicates which mode the error history
is. In the optical pick-up error code mode, “D” is displayed on the
fluorescent indicator tube.
The second digit from the left indicates:
(Error history No. display)
The second digit from the left indicates which order the error history
is. “1” indicates the latest error history, and each time the number
increases by one, the error history goes back to one-previous error.
(Error history No. display)
The second digit from the left indicates which order the error history
is. “1” indicates the latest error history, and each time the number
increases by one, the error history goes back to one-previous error.
The third and 4th digit from the left indicates:
(Error status display)
The third and 4th digit from the left indicates which error status is
indicated.
(Error status display)
The third and 4th digit from the left indicates which error status is
indicated.
Display
Status
0
1
Not focused (TOC read without a disc)
0
2
GFS NG (TOC read with a disc chucked)
0
3
Start operation time-over
0
4
Defocused continuously (Defocused during TOC reading)
0
5
Q code not entered for specified time
0
6
Tracking not turned ON
0
7
Blank disc (Blank disc TOC read)
The 5th and 6th digit from the left indicates:
(Error step display)
The 5th and 6th digit from the left indicates which processing when
a trouble occurred
(Error step display)
The 5th and 6th digit from the left indicates which processing when
a trouble occurred
Display
Contents
0
1
Power OFF in progress
0
2
Initialize in progress
0
3
Oscillation stopping
0
4
From oscillation stop, oscillation starting
0
5
Stopping
0
6
Stop operation is under way
0
7
Start operation in progress
0
8
TOC read in progress
0
9
Search operation is under way
0
A
Playback operation is under way
0
B
Pause operation is under way
0
C
Playback manual search operation is under way
0
D
Pause manual search operation is under way
0
E
—
The 7th and 8th digit from the left indicates:
The 7th and 8th digit from the left indicates which operation in
progress when a trouble occurred. (Step of each processing of the
5th and 6th digits is indicated)
The 7th and 8th digit from the left indicates which operation in
progress when a trouble occurred. (Step of each processing of the
5th and 6th digits is indicated)
19
HCD-RG295/RG495/RG595
SECTION 5
MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback head
pinch roller
erase head
rubber belts
capstan
idlers
2. Demagnetize the record/playback head with a head
demagnetizer. (Do not bring the head magnetizer close to the
erase head.)
erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, appiy suitable locking compound to
4. After the adjustments, appiy 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
Torque Meter
Meter Reading
2.6 – 6.9 mN
⋅
m
FWD
CQ-102C
(30 – 70 g
⋅
cm)
(0.41 – 0.97 oz
⋅
inch)
FWD
0.15 – 0.59 mN
⋅
m
Back Tension
CQ-102C
(1.5 – 6.0 g
⋅
cm)
(0.021 – 0.083 oz
⋅
inch)
5.4 – 16.7 mN
⋅
m
FF/REW
CQ-201B
55 – 170 g
⋅
cm)
0.76 – 2.35 oz
⋅
inch)
TAPE TENSION MEASUREMENT
Mode
Tension Meter
Meter Reading
FWD
CQ-403A
more than 100 g
(more than 3.53 oz)
20
HCD-RG295/RG495/RG595
3. Mode: Playback
set
test tape
P-4-A063
(6.3 kHz, –10 dB)
P-4-A063
(6.3 kHz, –10 dB)
oscilloscope
V
H
waveform of oscilloscope
in phase 45
°
90
°
135
°
180
°
good
wrong
MIC. AUX. HP board
PHONES jack
(J701)
PHONES jack
(J701)
2. Turn the adjustment screw and check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1dB of peak.
so that outputs match within 1dB of peak.
Screw
position
position
L-CH
peak
peak
within
1dB
1dB
Output
level
level
L-CH
peak
peak
R-CH
peak
peak
within
1dB
1dB
Screw
position
position
R-CH
peak
peak
SECTION 6
ELECTRICAL ADJUSTMENTS
0 dB=0.775 V
DECK SECTION
set
MIC. AUX. HP board
PHONES jack
(J701)
PHONES jack
(J701)
+
–
–
level meter
test tape
P-4-A063
(6.3 kHz, –10 dB)
P-4-A063
(6.3 kHz, –10 dB)
1. Demagnetize the record/playback head with a head
demagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the
3. After the adjustments, apply suitable locking compound to the
parts adjust.
TEST TAPE
RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENT
Note 1:
Remove the mecha deck before this adjustment.
(Refer to Section 3. DISASSEMBLY (See page 8))
(Refer to Section 3. DISASSEMBLY (See page 8))
Note 2:
Perform this adjustment for both decks.
Procedure:
1. Mode: Playback
Tape
Signal
Used for
P-4-A063
6.3 kHz, -10 dB
Azimuth Adjustment
4. After the adjustments, apply suitable locking compound to
the pats adjusted.
Adjustment Location: Playback Head (DECK-A)
Record/Playback/Erase Head (DECK-A)
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