DOWNLOAD Sony HCD-V717 / MHC-V717 Service Manual ↓ Size: 8.34 MB | Pages: 84 in PDF or view online for FREE

Model
HCD-V717 MHC-V717
Pages
84
Size
8.34 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-v717-mhc-v717.pdf
Date

Sony HCD-V717 / MHC-V717 Service Manual ▷ View online

– 9 –
TAPE  MECHANISM  DECK  SECTION  (TCM-230AWR1/230PWR1)
CD  MECHANISM  DECK  SECTION  (CDM38L-5BD24AL),
VIDEO  BOARD
1
Push two 
cassette lids.
3
three screws
(BVTP3 
×
 8)
2
Open two
cassette lids.
4
two screws
(BVTP3 
×
 8 )
5
tape mechanism 
deck section
 TCM-230AWR1
 TCM-230PWR1
(
)
6
CD mechanism deck section
 (CDM38L-5BD24AL)  
4
two screws
(BVTP3 
×
 8)
8
screw
(BVTP3 
×
 8)
9
VIDEO board
7
wire (flat type) (23 core) 
(CN501) 
1
two connectors
(CN103, CN104)
3
two screws
(BVTP3 
×
 8)
2
wire (flat type) (13 core) (17 cm) 
(CN105) 
5
claw
5
claw
– 10 –
MAIN  BOARD
3
two screws
(BVTP3 
×
 8)
3
screw
(BVTP3 
×
 8)
2
wire (flat type) (15 core) (14 cm)
     (CN102)
6
MAIN board
5
connector
(CN101)
7
connector
(CN110)
4
two screws
(BVTT3 
×
 6)
1
two connectors
(CN11, 12)
3
screw
(BVTP3 
×
 8)
– 11 –
SECTION  4
TEST  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
I/
u
simulta-
neously.
2. The fluorescent indicator tube becomes blank instantaneously,
and the set is reset.
[CD Delivery 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
I/
u
button to turn the set ON.
2. Press 
[CD LOOP]
 button and
I/
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]
 simul-
taneously.
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 pickup.
Procedure:
1. Press
I/
u
button to turn the set ON.
2. Select the function “CD”.
3. Press three buttons
p
 , 
[ENTER/NEXT]
, and
§ simulta-
neously.
4. The Sled Servo mode is selected, if “CD” is blanking on the
fluorescent indicator tube.
5. With the CD in stop status, press
) + button to move the
pickup to outside track, or – 
0 button 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 3.
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 FUNCTION Name]
• The FUNCTION name of external input terminal can be changed
over to “VIDEO” of “MD”.
Procedure:
1. Press
I/
u
button to turn the set OFF.
2. Press
I/
u
button together with 
[FUNCTION]
 button, and the
power is turned on, the display of fluorescent indicator tube
changes to “MD” of “VIDEO” instantaneously, and thus the
FUNCTION is changed over.
[Change-over of MW Tuner Step between 9 kHz and
10 kHz]
• A step of MW channels can be changed over between 9 kHz
and 10 kHz.
Procedure:
1. Press
I/
u
button to turn the set ON.
2. Select the function “TUNER”, and press 
[TUNER BAND]
button to select the BAND “MW”.
3. Press
I/
u
button to turn the set OFF.
4. Press 
[ENTER/NEXT]
 and
I/
u
buttons simultaneously, and
the display of  fluorescent indicator tube changes to “MW 9 k
STEP” or “MW 10 k 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]
 simul-
taneously.
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 J0 V0”.  Each time a button is pressed, “K” value in-
creases. 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 “–” direc-
tion.
“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 man-
ner as step 1, or disconnect the power cord.
[Self-Diagnosis]
This unit is equipped with a self-diagnosis function.
The function is used for diagnosing the conditions of the circuits
of the VIDEO board.
The circuits can be determined if normal or abnormal by the light-
ing of D502 of the VIDEO board.
Lighting of D502
When lit
: Operates normally
Blinks repeatedly : The circuit may be faulty.
[VIDEO Board] (Side A)
D502
IC505
– 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 and display status.
• If no error occurs:
The aging operation continues repeatedly.
1.  Operating Method of Aging Mode
1) Set disc in DISC1 tray.
2) Load the tapes recording use into the decks A and B respec-
tively.
3) Press three buttons
p
[ENTER/NEXT]
,
and 
[DISC SKIP/EX-CHANGE]
 simultaneously.
4) The aging mode is activated, if a CD roulette mark on the fluo-
rescent indicator tube is blinking.
5) To exit from the aging mode, press
I/
u
button to turn the set
OFF.
2.  Operation Sequence
• During the aging mode in the following sequence to below.
• Starting the CD section aging for function set “CD”, starting
the TAPE section (deck A) aging for function set “TAPE A” or
“TAPE B”. (Set another function is no work.)
CD (disc1)  (12 minutes) 
Deck A
(Maximum about
Deck B
12 minutes)
3. Aging mode in CD section
1) Display state
• No error occurs
display
Note:
[*][*] : a letter “CD” and the remainder time (minute) alternately. (re-
mainder time start from 12 minute)
  @ @
: track number in access.
• Error occurred
2)  Operation during aging Mode
In the aging mode, the program is executed in the following se-
quence.
(1)
The CD tray rotates and disc 1 is selected.
(2)
Chucking is performed.
(3)
TOC is read.
(4)
Track 1 played back for 8 seconds.
(5)
The CD tray opens and closes again.
(6)
1 to 5 is repeated.
(7)
After 12 minutes of aging, aging is switched to the tape deck.
NO.
Display
Main factor
1
NO DISC ERR Not set disc in DISC1
2
FOCUS1 ERR Focus does not work
3
FOCUS2 ERR Focus does not work after the disc rotate as usual
4
GFS ERR
GFS error
5
FBIAS ERR
Error in to the focus bias adjustment
6
SENSOR ERR Disc sensor sens DISC1 is no disc
7
TABLE ERR
CD tray lotate does not work
8
TRAY ERR
Tray (include BD) move does not work
4. Aging mode in Tape Deck section
1) Display state
• No error occurs
Display action now
• Error occurred
Display action last time
2)  Operation during Aging Mode
In the aging mode, the program is executed in the following se-
quence.
(1)
The tape in deck A is rewound to the head.
(2)
The FWD side is played back for 2 minutes.
(3)
The tape is fast forwarded (FF) for 20 seconds. The follow-
ing procedure is performed when the tape end is reached
before the 20 seconds.
(4)
The REV side is played back for 2 minutes.
(5)
The tape is rewound to the head (REW).
(6)
The tape in deck B is rewound to the head.
(7)
The FWD side is played back for 2 minutes.
(8)
The tape is fast forwarded (FF) for 20 seconds. The follow-
ing procedure is performed when the tape end is reached
before the 20 seconds.
(9)
The REV side is played back for 2 minutes.
(10) The tape is rewound to the head (REW).
(11) Aging is switched to the CD player.
NO. Display action
Action contents
Final timing
1
TAPE A AG-1
Rewind the TAPE A
The top of tape
2
TAPE A AG-2
FWD play the TAPE A
2 minutes playing
3
TAPE A AG-3
F.F. the TAPE A
First either 20 seconds
or the end of tape
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-1
Rewind the TAPE B
The top of tape
7
TAPE B AG-2
FWD play the TAPE B
2 minutes playing
8
TAPE B AG-3
F.F. the TAPE B
First either 20 seconds
or the end of tape
9
TAPE B AG-4
REV play the TAPE B
2 minutes playing
10
TAPE B AG-5
Rewind the TAPE B
The top of tape
[*][*]
 1 –
@ @
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