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Model
HCD-GRX8 HCD-R800 HCD-RX88 HCD-RX99 MHC-GRX8 MHC-R800 MHC-RX88
Pages
99
Size
9.77 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-grx8-hcd-r800-hcd-rx88-hcd-rx99-mhc-grx8-mhc-r.pdf
Date

Sony HCD-GRX8 / HCD-R800 / HCD-RX88 / HCD-RX99 / MHC-GRX8 / MHC-R800 / MHC-RX88 Service Manual ▷ View online

– 9 –
3-3. CASSETTE MECHANISM DECK
3-4. PANEL BOARD AND CONT COM BOARD
1
 
Two screws
     (BVTT 2x5)
2
 
Two screws
     (BVTT 2x5)
9
 
Three screws
     (BVTP 2.6x8)
 
Two screws
     (BVTP 2.6x8)
 
Three screws
     (BVTP 2.6x8)
 
Screw
     (BVTP 2.6x8)
!™
 
Screw
     (BVTP 2.6x8)
 
Bracket
!∞
 
Mechanism deck
3
 
Small damper
4
 
Small damper
5
 
Push the cassette lids.
6
 
Remove the cassette lids.
7
 
Spring
8
 
Spring
1
 
Ten screws
     (BVTP 2.6x8)
2
 
Three screws
     (BVTP 2.6x8)
 
Four screws
     (BVTP 2.6x8)
 
Six screws
     (BVTP 2.6x8)
3
 
Panel board
!™
 CONT COM
 board
4
 
Shield
5
 
Flat type wire
     (CN602)
6
 
Konb(Jog)
7
 
Nut
9
 
Nut
8
 
Konb(Volume)
– 10 –
3-5. DISC TRAY
Claw
B
Claw
A
1
 
Turn the cam 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 clawA and clawB, as shown in the figure.
(Perfom after removing the front panel.)
– 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  p  ,  ENTER/NEXT  , and  1/u  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  1/u  button to turn the set ON.
2. Press  LOOP  button and  1/u  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  p  ,  ENTER/NEXT  , and  DISC 1  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  p  ,  ENTER/NEXT  , and  §  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  ) +  utton 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 AM Tuner Step between 9kHz and 10kHz
• A step of AM channels can be changed over between 9kHz and 10kHz.
Procedure:
1. Press  1/u  button to turn the set ON.
2. Select the function “TUNER”, and press  TUNER/BAND  button to select the BAND “AM”.
3. Press  1/u  button to turn the set OFF.
4. Press  ENTER/NEXT  and  1/u  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  p  ,  ENTER/NEXT  , and  DISC 2  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 checking the operations of the CD player and tape deck.
• When problems occur;
Aging stops, and the stopped state is displayed on the fluorescent display tube.
• When no problems;
Aging continues.
Preparations:
• Set the CD on the DISC1 tray.
• Insert a commercially available tape for recording (tapes which contents can be erased, etc.) in decks A and B.
Setting the aging mode:
Press the  p  button,  ENTER/NEXT  button, and  DISC SKIP/EX-CHANGE  button together.
When the aging mode is set, the CD roulette mark blinks. To exit the mode, press the  1/u  button and turn OFF the power.
Sequence:
The aging mode is executed in the following sequence.
If the function is set to “CD” when the aging mode is set, aging is performed starting from the CD player. When set to “TAPE A” or “TAPE
B”, aging is started from deck A.
If the function is set to others, aging will not be started until the function is switched to CD or TAPE.
Display of status:
• The aging status is displayed on the fluorescent display tube.
• Normally, the CD player displays the remaining aging time. But if operations ended abnormally, it displays the cause.
• During the aging of the tape deck, the operations performed will be displayed. If operations ended abnormally, this will be displayed at the
fluorescent display tube.
CD Player
• During normal operations:
Display of fluorescent display tube
**1-@@
**: Displays “CD” and the remaining aging time (minutes) alternately. The remaining aging time is counted down from 12.
@@: Track number being accessed.
• When operations end abnormally:
Display of fluorescent display tube
Display
Main Cause
NO DISC ERR
FOCUS1 ERR
FOCUS2 ERR
GFS ERR
FBIAS ERR
SENSOR ERR
TABLE ERR
TRAY ERR
DISC 1 is NO DISC from the beginning
Focus is not imposed properly
The focus deviated several times after the disc rotated normally
GFS ERROR
Error during focus bias adjustment
DISC 1 was found to be NO DISC by the disc sensor
The table did not rotate normally
The tray containing the BD did not operate normally
Aging of CD player (12 minutes)
Aging of deck A
Aging of deck B
Maximum about 12 minutes
Page of 99
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