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Model
HCD-D90AV HCD-GR10AV HCD-RX100AV MHC-D90AV MHC-GR10AV MHC-RX100AV
Pages
76
Size
1.51 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-d90av-hcd-gr10av-hcd-rx100av-mhc-d90av-mhc-gr1.pdf
Date

Sony HCD-D90AV / HCD-GR10AV / HCD-RX100AV / MHC-D90AV / MHC-GR10AV / MHC-RX100AV Service Manual ▷ View online

— 9 —
3-3. TC MECHANISM DECK AND DECO BOARD (Except US, CND)
1
Push the buttons (EJECT) 
4
 and 
5
.
1
Two screws
(+BVTP2.6x8)
2
Bracket (HP)
3
HP/MIC board
4
Knob (Vol)
5
Nut
6
Flat type wire
  8 core : US, CND
  10 core : Except : US, CND
7
Seven screws
(+BVTP2.6x8)
8
Nine screws
(+BVTP2.6x8)
9
Claws
0
Claws
Claws
!™
Claw
Display board
Seven screws
(+BVTP2.6x8)
!∞
Claws
TC SW board
Connector
(CN607)
3-4. HP/MIC BOARD, DISPLAY BOARD AND TC SW BOARD
7
Cassette lid (B) assembly
4
Button (EJECT)
2
Three screws
(+BVTP2.6x8)
3
TC mechanism deck
8
DECO board
5
Button (EJECT)
6
Cassette lid (A)
assembly
Except US, CND
9
Flat type wire (5 core)
Claws
• Abbreviation
CND: Canadian model
— 10 —
3-5. DISC TRAY
(Perform after removing the front panel.)
1
Turn the cam to the
direction of arrow.
2
Pull-out the disc tray.
5
Remove the disc tray.
4
Two claws
3
Flat type wire (8 core)
Note: When installing the Disc tray, pull around the flat type wire to
pass through the claw 
A
 and claw 
B
, as shown in the figure.
Claw 
A
Claw 
B
— 11 —
SECTION  4
SERVICE MODE
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  SPECTRUM ANALYZER  ,  ENTER/NEXT  , and  DISC 1  simultaneously.
2. The fluorescent indicator tube becomes blank instantaneously, and the set is reset.
CD Delivery Mode
• This mode moves the pick-up to the position durable to vibration. Use this mode when returning the set to the customer after repair.
Procedure:
1. Press  POWER  button to turn the set ON.
2. Press  PLAY MODE  button and  POWER  button simultaneously.
3. A message “LOCK” is displayed on the fluorescent indicator tube, and the CD delivery 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  SPECTRUM ANALYZER  ,  ENTER/NEXT  , and  DISC 2  simultaneously.
2. The fluorescent indicator tube becomes blank instantaneously, and the set is reset.
Sled Servo Mode
• This mode can run the CD sled motor freely. Use this mode, for instance, when cleaning the pick-up.
Procedure:
1. Select the function “CD”.
2. Press three buttons  SPECTRUM ANALYZER  ,  ENTER/NEXT  , and  FUNCTION  simultaneously.
3. The Sled Servo mode is selected, if “CD” is blanking on the fluorescent indicator tube.
4. With the CD in stop status, press  
)  button in CD section to move the pick-up to outside track, or  0  button to inside track.
5. To exit from this mode, perform as follows:
1) Move the pick-up to the most inside track.
2) Press three buttons in the same manner as step 2.
Note:
• Always move the pick-up 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 FUNCTION Name
• The FUNCTION name of external input terminal can be changed over to VIDEO or MD. With the FUNCTION selected to “MD”, about
5dB mute is applied to the input gain.
Procedure:
1. Press   POWER   button to turn the set OFF.
2. Press   POWER   button together with  FUNCTION  button, and the power is turned on, the display of fluorescent indicator tube changes
to “MD” or “VIDEO” instantaneously, and thus the FUNCTION is changed over.
Change-over of AM Tuner Step between 9kHz and 10kHz
• A step of AM channels can be changed over between 9kHz and 10kHz.
Procedure:
1. Press  POWER  button to turn the set ON.
2. Select the function “TUNER”, and press  TUNER/BAND  button to select the BAND “AM”.
3. Press  POWER  button to turn the set OFF.
4. Press  ENTER/NEXT  and  POWER  buttons simultaneously, and the display of  fluorescent indicator tube changes to “AM 9k STEP” or
“AM 10k STEP”, and thus the channel step is changed over.
LED and Fluorescent Indicator Tube All Lit, Key Check Mode
Procedure:
1. Press three buttons  SPECTRUM ANALYZER  ,  ENTER/NEXT  , and  DISC 3  simultaneously.
2. LEDs and fluorescent indicator tube are all turned on.
Press  DISC 2  button, and the key check mode is activated.
3. In the key check mode, the fluorescent indicator tube displays “K 1 V0 J0”.  Each time a button is pressed, “K”value increases. However,
once a button is pressed, it is no longer taken into account.
“J” Value increases like 1, 2, 3 ... if rotating JOG knob in “+”  direction, or it decreases like 0, 9, 8 ... if rotating in “-” direction.
“V” Value increases like 1, 2, 3 ... if rotating  VOLUME  knob in “+”  direction, or it decreases like 0, 9, 8 ... if rotating in “-” direction.
4. To exit from this mode, press three buttons in the same manner as step 1, or disconnect the power cord.
— 12 —
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.
• If no error occurs:
The aging operation continues repeatedly.
1.
Aging Mode in CD Section
1-1. Operating procedure of Aging Mode
1. Set discs in DISC 1 and DISC 2 trays.
2. Select the function “CD”.
3. Press three buttons  SPECTRUM ANALYZER  ,  ENTER/NEXT  , and  KARAOKE PON/MPX  simultaneously.
4. The aging mode is activated, if a roulette mark on the fluorescent indicator tube is blinking.
5. In the aging mode, the aging is executed in a sequence given in “1-2. Operation during Aging Mode”.
The aging continues unless an alarm occurred.
6. To exit from the aging mode, press  POWER  button to turn the set OFF.
If a button other than buttons In CD section is pressed during aging, the aging in the CD section is finished.
To execute aging to the tape deck section successively, press 
· button in the deck A.
“AGING” is displayed on the fluorescent indicator tube.  (For the aging in tape deck, see “2. Aging Mode in Tape Deck Section”.
1-2.  Operation during aging Mode
In the aging mode, the program is executed in the following sequence.
1. The disc table is ejected.
2. The disc tray turns to select a disc. (For a disc selection sequence, see Section 1-3.)
3. TOC of disc is read.
4. The pick-up accesses to the last track.
5. Disc table is ejected.
6. Steps 2 through 5 are repeated.
1-3.  Disc Selection Sequence
During the aging mode, discs are selected in the following sequence:
Disc 1 
 Disc 2
Disc 2 
 Disc 1
2.
Aging Mode in Tape Deck Section
2-1.  Operating procedure of Aging Mode
1. Load a commercially available 10-minute tape into the decks A and B respectively.
(If a 10-minute tape is not available, another tape may be used but a cycle time will be longer.)
2. Select the function “TAPE”.
3. Rewind tapes in advance by pressing  
0  button respectively on decks A and B.
4. Press three buttons  SPECTRUM ANALYZER  ,  ENTER/NEXT  , and  KARAOKE PON/MPX  simultaneously.
5. Press  
·  button on deck A.  (This button triggers the aging mode.)
6. The aging mode is activated if “AGING  A” is displayed on the fluorescent indicator tube.
7. In the aging mode, the aging is executed in a sequence given in “2-2.  Operation during Aging Mode”.
The aging continues unless an alarm occurred.
8. To exit from the aging mode, press  POWER  button to turn the set OFF.
2-2.  Operation during Aging Mode
In the aging mode, the program is executed in the following sequence.
1. A tape on FWD side is played for one minute.
2. PAUSE STOP is made.
3. Recording is made for 3 minutes. (For the deck not having the record function, the play is executed. In this case,  
·  LED does not
light up.)
4. FF is executed up to the end of tape.
5. A tape is reversed, and the tape on REV side is played for one minute.
6. PAUSE STOP is made.
7. Recording is made for 3 minutes.  (For the deck not having the record function, the play is executed. In this case,  
ª  LED does not
light up.)
8. FF is executed up to the end of tape.
9. Steps 1 through 8 are executed for the other deck.
10. Steps 1 through 9 are repeated unless an alarm occurred.
2-3.  Deck Selection Sequence
• During the aging mode, decks are selected in the following sequence:
Deck A (FWD) 
 Deck A (REV)
Deck B (REV) 
 Deck B (FWD)
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