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Model
DHC-AZ55D HCD-AZ55D
Pages
125
Size
9.3 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
dhc-az55d-hcd-az55d.pdf
Date

Sony DHC-AZ55D / HCD-AZ55D Service Manual ▷ View online

HCD-AZ55D
25
5.  Convert data from hexadecimal to decimal by using conver-
sion table.
6. Please 
fi nd the label on the rear of BU (Base Unit). The default 
IOP value is written in the label.
7.  Subtract between these two values.
8.  If the value is smaller than 93 (decimal), then it is OK. How-
ever if the value is higher than 93, then BU (base unit) is defec-
tive and need to be change.
9.  Press the [
O
 RETURN] button on the remote commander to 
return to previous menu.
10. Press the [0] button on the remote commander to return to the 
top menu of Remocon Diagnosis Menu.
11.  Press the [
?
/
1
] button to turn off the system.
4.  CHECKING  EMERGENCY  HISTORY
To check the emergency history, please follow the following pro-
cedure.
Procedure:
1.  From the top menu of Remocon Diagnosis Menu, select “3. 
Emergency History” by pressing the [3] button on the remote 
commander. The following screen appears on the on-screen 
display.
Emg. History Check
Laser Hours     CD    999h  59min
                DVD   999h  59min
01. 01 05 04 04      00 92 46 00
    00 00 00 00      00 00 23 45
02. 02 02 01 01      00 A9 4B 00
    00 00 00 00      00 00 23 45
[Next]Next page [Prev]Prev page
[0]Return to Top Menu
2.  You can check the total time when the laser is turned on during 
playback of DVD and CD from the above menu. The maxi-
mum time, which can be displayed are 999h 59min.
3.  You can check the error code of latest 10 emergency history 
from the above menu. To view the previous or next page of 
emergency history, press the [
.
] or [
>
] button on the re-
mote commander.  The error code consists of three kinds of 
error codes. 
A. Error code
Example of Error code
01. 01 05 04 04      00 92 46 00
    00 00 00 00      00 00 23 45
The meaning of error code is as below:
01: Communication error (No reply from syscon)
02: Syscon hung up
03: Power OFF request when syscon hung up
19: Thermal shutdown
24: MoveSledHome error
25: Mechanical move error (5 changer)
26: Mechanical move stack error
30: DC motor adjustment error
31: DPD offset adjustment error
32: TE balance adjustment error
33. TE sensor adjustment error
34. TE loop gain adjustment error
35. FE loop gain adjustment error
36. Bad jitter after adjustment
40. Focus NG
42. Focus layer jump NG
52. Open kick spindle error
51: Spindle stop error
60: Focus on error
61: Seek fail error
62: Read Q data/ID error
70: Lead in data read fail
71: TOC read time out (CD)
80: Can’t buffering
81: Unknown media type
B. Parameter of error code
This is the detail of error code. 
Example of Error code
01. 01 05 04 04      00 92 46 00
    00 00 00 00      00 00 23 45
C. Time of error code
This is the laser time when an error occurred.
Example of Error code
01. 01 05 04 04      00 92 46 00
    00 00 00 00      00 00 23 45
To Clear the Laser Hour
Press the [  DISPLAY] button on the remote commander and 
then press the [CLEAR] button on the remote commander. The 
data for both CD and DVD data are reset.
Emg. History Check
Laser Hours     CD      0h   0min
                DVD     0h   0min
01. 01 05 04 04      00 92 46 00
    00 00 00 00      00 00 23 45
02. 02 02 01 01      00 A9 4B 00
    00 00 00 00      00 00 23 45
[Next]Next page [Prev]Prev page
[0]Return to Top Menu
Ver. 1.1
HCD-AZ55D
26
To Clear the Emergency History
Press the [DVD TOP MENU] button on the remote commander 
and then press the [CLEAR] button on the remote commander. The 
error code for all emergency history would be reset.
Emg. History Check
Laser Hours     CD    999h  59min
                DVD   999h  59min
01. 00 00 00 00      00 00 00 00
    00 00 00 00      00 00 00 00
02. 00 00 00 00      00 00 00 00
    00 00 00 00      00 00 00 00
[Next]Next page [Prev]Prev page
[0]Return to Top Menu
To Clear the Initialize Setup Data
Press the [DVD MENU] button and then press the [CLEAR] but-
ton on the remote commander.
Emg. History Check
Laser Hours     CD    999h  59min
                DVD   999h  59min
 
initialize setup data...
[Next]Next page [Prev]Prev page
[0]Return to Top Menu
To Return to the Top Menu of  Remocon Diagnosis 
Menu
Press the [0] button on the remote commander.
5.  CHECKING  VERSION  INFORMATION
To check the version information, please follow the following pro-
cedure.
Procedure:
1.  From the top menu of  Remocon Diagnosis Menu, select “4. 
Version Information” by pressing the [4] button on the remote 
commander. The following screen appears on the on-screen 
display.
Version information
Firm(Main): Ver. X.XXX
Firm(Sub): XX.XX
RISC: XXXXXX
8032: XXXXXX
Audio DSP: XX.XX.XX.XX
Servo DSP: XX.XX.XX.XX
[0]Return to Top Menu
2.  To return to the top menu of Remocon Diagnosis Menu, press 
the [0] on the remote commander.
DIGITAL  MEDIA  PORT  TEST
Procedure: 
1.  Connect the DMPORT CHECK JIG (Part No.: J-2501-309-A) 
with the terminal DMPORT.
2.  Press the [
?
/
1
] button to turn the power on.
3. Confi rm that both LEDs of the DMPORT confi rmation  JIG 
lights. (Confi rmation the power supply line.)
4.  Touch the [DMPORT] sensor to select the “DMPORT”
5.  Touch three sensors of [
x
], [DMPORT] and [VOLUME +] 
simultaneously, the DMPORT test mode is activated.
6.  Touch three sensors of [
x
], [DMPORT] and [VOLUME -] si-
multaneously, it is confi rmed that “DMPORT OK” is displayed 
on this set display. (Confi rmation of communication line)
7.  To a pinjack of the DMPORT confi rmation JIG input informa-
tion relevant to audio signal. (sine-wave 1.0Vrms)
8. Confi rm the output of speakers and monitor TV. (Confi rmation 
of analog signal)
9.  To release from this mode, press the [
?
/
1
] button to turn off the 
system.
DMPORT
check jig
(Part No.:
J-2501-309-A)
J001
AF oscillator
set
FL/FR
speaker
DMPORT board
CN204
SPEAKER board
TB502
Ver. 1.1
HCD-AZ55D
27
SECTION  5
MECHANICAL  ADJUSTMENTS
SECTION  6
ELECTRICAL  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 demagne-
tizer. 
3.  Do not use a magnetized screwdriver for the adjustments.
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
FWD
CQ-102C
3.06 N • m to 6.96 N • m
31 to 71 g • cm
(0.43 – 0.98 oz • inch)
FWD
Back Tension
CQ-102C
0.19 N • m to 0.58 N • m
2 to 6 g • cm
(0.02 – 0.08 oz • inch)
REV
CQ-102RC
3.06 N • m to 6.96 N • m
31 to 71 g • cm
(0.43 – 0.98 oz • inch)
REV
Back Tension
CQ-102RC
0.19 N • m to 0.58 N • m
2 to 6 g • cm
(0.02 – 0.08 oz • inch)
FF/REW
CQ-201B
6.96 N • m to14.02 N • m
71 to 143 g • cm
(0.98 – 1.99 oz • inch)
FWD Tension
CQ-403A
9.80 N • m
100 g or more
(3.53 oz or more)
REV Tension
CQ-403R
9.80 N • m
100 g or more
(3.53 oz or more)
1.  Demagnetize the record/playback head with a head demagne-
tizer. 
2.  Do not use a magnetized screwdriver for the adjustments.
3.  After the adjustments, apply suitable locking compound to the 
parts adjust.
TEST  TAPE
Tape
Signal
Used for
P-4-A063
6.3 kHz, -10 dB
Azimuth Adjustment
RECORD/PLAYBACK  HEAD  AZIMUTH  ADJUSTMENT
Note:  Perform this adjustments for both decks.
Procedure:
1.  Mode:  Playback
set
MAIN board
VIDEO/SAT OUT 
jack (J101)
+
level meter
test tape
P-4-A063
(6.3 kHz, –10 dB)
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.
Screw
position
L-CH
peak
within
1dB
Output
level
L-CH
peak
R-CH
peak
within
1dB
Screw
position
R-CH
peak
DECK  SECTION
0 dB = 0.775V
HCD-AZ55D
28
3.  Mode:  Playback
set
test tape
P-4-A063
(6.3 kHz, –10 dB)
oscilloscope
V
H
waveform of oscilloscope
in phase 45o
90135180o
good
wrong
MAIN board
VIDEO/SAT OUT
 jack (J101)
4.  After the adjustments, apply suitable locking compound to the 
pats adjusted.
Adjustment Location: Record/Playback/Erase Head
Note:  Lid (cassette) of front panel to detach.
reverse
forward
DVD  SECTION
TEST  DISC  LIST
Use the following test disc on electrical adjustments.
YEDS-18 (CD) 
: PART No. 3-702-101-01
PATD-012 (CD) 
: PART No. 4-225-203-01
HLX-503 (DVD-SL) (NTSC) : PART No. J-6090-069-A
HLX-504 (DVD-SL) (NTSC) : PART No. J-6090-088-A
HLX-506 (DVD-SL) (PAL)  : PART No. J-6090-077-A
HLX-501 (DVD-DL) (NTSC) : PART No. J-6090-071-A
HLX-505 (DVD-DL) (NTSC) : PART No. J-6090-089-A
HLX-507 (DVD-DL) (PAL)  : PART No. J-6090-078-A
Note:  Do not use excepting test disc for DVD.
ADJUSTMENT AFTER OPTICAL PICK-UP  BLOCK RE-
PLACED
After optical pick-up block is replaced, adjustment is necessary. In 
this case, perform “EXECUTING IOP MEASUREMENT” (Refer 
to page 23 in TEST MODE) next.
RF  LEVEL  CHECK
+
DMB17 board
CN105 pin  (RFMON)
CN105 pin  (GND)
oscilloscope
(DC range)
Procedure :
1.  Connect the oscilloscope to CN105 pin 
6 (RFMON) and 
CN105 pin 
3 (GND) on the DMB17 board.
2.  Press the [
?
/
1
] button to turn the power on.
3.  Insert the test disc and touch the [
Y
] sensor to playback.
4. Confi rm that oscilloscope waveform is as shown in the fi gure 
below. (eye pattern)
    A good eye pattern means that the diamond shape (
◊) in the 
center of the waveform can be clearly distinguished.
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
level:
0.8 p 0.2 Vp-p (DVD)
0.8 p 0.2 Vp-p (CD)
Checking Location:
– DMB17 Board (Component Side) –
6
1
CN105
IC104
IC102
IC101
IC201
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