DOWNLOAD Sony HTC-W555 / MHC-W555 Service Manual ↓ Size: 4.57 MB | Pages: 57 in PDF or view online for FREE

Model
HTC-W555 MHC-W555
Pages
57
Size
4.57 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
htc-w555-mhc-w555.pdf
Date

Sony HTC-W555 / MHC-W555 Service Manual ▷ View online

– 5 –
CD
+ (AMS)  π (TAPE B)  button +  DISC3  button
= (AMS)  π (TAPE B)  button +  DISC1  button
)
 π (TAPE A)  button +  DISC3  button
0
 π (TAPE A)  button +  DISC1  button
TAPE A
+ (AMS)  DISC SKIP  button +  ·  (TAPE B)
TAPE B
= (AMS)  DISC SKIP  button +  ª  (TAPE B)
)
 DISC SKIP  button +  ·  (TAPE A)
0
 DISC SKIP  button +  ª  (TAPE A)
Connection and Operations of the Unit by Itself
This unit cannot be operated by itself as it does not come with a power supply.
Connect STR-W555/W777 as shown in “Connection 1” before beginning servicing.
Connection 1: If there is STR-W555/W777.
STR-W555/W777
SYSTEM CABLE 17P
SET
AC IN
Use a power supply jig (PFJ-1) if the STR-W555/W777 is not available.
Connect the conversion jig for connection (J-2501-138-A) as shown in “Connection 2” before beginning servicing.
Connection 2: If there is not STR-W555/W777.
Set
Conversion
Jig
(J-2501-138-A)
Power SW
Service Box (PFJ-1)
Connector
cable 17P
(Supplied with PFJ-1)
Connector
cable 17P
(Supplied with
Conversion Jig or Set)
FH-E939,838,737
MHC-6600,5600,3600,2600
CDP/TC
SYSTEM CONTROL
To operate the unit by itself, turn on the power of the conduction jig (PFJ-1), and press the  π (TAPE A)  ,  π (TAPE B)  , and  · (TAPE
B)   buttons together in this order.
As this unit is not equipped with fast forward and rewind buttons, buttons need to be combined and pressed together for different functions
when operating the unit by itself. (See Table-2.)
However, it will not operate properly if operations are performed without switching the functions.
Perform the following procedure to switch the functions before operating the unit.
The function selected is indicated by the  DISC NUMBER  indicator.
Table 1 Switching the Functions
Table 2 Pressing Combination of Buttons When Operated by Itself
Function
CD
p (CD)  button
1` 2` 3
+  HI-SPEED DUBBING  button
TAPE A
p (CD)  button
1` 2 3
+  r REC  button
TAPE B
p (CD)  button
1 2`  3
+  ª (TAPE A)  button
Operation
The function can be differentiated by the lighting of this part of the indicator.
1` 2` 3
Indicator
Deck
Function
Operation
– 6 –
Precedure:
1. After turning ON the power of the conduction jig (PFJ-1), press the  π (TAPE A)  button,  π (TAPE B)  button, and  · (TAPE B)  button
together in this order.
2. Press the  π (TAPE B)  button while pressing the  p (CD)  button to set the aging mode and start aging.
3. To end aging, press the three buttons in step 1.
Cold Reset
NOTE: This is the mode for operating the unit by itself. Take note that the operating method differs when connected to the STR-W555/
W777. This method is described in the manuals of the STR-W555 and STR-W777. Refer to these manuals for details.
This mode is used for initializing the RAM contents. Perform this mode when returning the repaired product to the customer.
Precedure:
1. After turning ON the power of the conduction jig (PFJ-1), press the  π (TAPE A)  button,  π (TAPE B)  button, and  · (TAPE B)  button
together in this order.
2. Press the  P (TAPE)  button while pressing the  p (CD)  button.
CD Delivery Mode
NOTE: This is the mode for operating the unit by itself. Take note that the operating method differs when connected to the STR-W555/
W777. This method is described in the manuals of the STR-W555 and STR-W777. Refer to these manuals for details.
This mode moves the pickup to areas where the anti-vibration is stronger. Perform this mode when returning the repaired product
to the customer.
Precedure:
1. After turning ON the power of the conduction jig (PFJ-1), press the  π (TAPE A)  button,  π (TAPE B)  button, and  · (TAPE B)   button
together in this order.
2. Press the  CD SYNCHRO  button while pressing the  p (CD)  button.
3. Wait untill  r (TAPE B)  indicator is on befor disconnect from the conduction jig (PFJ-1).
LED All Lit Mode
NOTE: Always perform this mode when operating the unit by itself.
This mode is used for lighting up the whole LED.
Precedure:
1. After turning ON the power of the conduction jig (PFJ-1), press the  π (TAPE A)  button,  π (TAPE B)  button, and  · (TAPE B)  button
together in this order.
2. The whole LED can be turned on and off each time the  π (TAPE A)  button is pressed while pressing the  p (CD)  button.
3. Press the three buttons in step 1 at the end.
Key Check Mode
NOTE: Always perform this mode when operating the unit by itself.
This mode is used for checking the key inputs of the buttons of the unit.
Precedure:
1. After turning ON the power of the conduction jig (PFJ-1), press the  π (TAPE A)  button,  π (TAPE B)  button, and  · (TAPE B)
button together in this order.
2. Press the   DOLBY NR  button while pressing the  p (CD)  button to set the key check mode, and the indicator displays “
3 ·P”.
3. The number of buttons pressed are indicated in binary digits by the indicator LED. Buttons pressed once are not counted when pressed
again.
4. Press the two buttons in step 2 at the end.
Display: 
1` 2` 3
Aging Mode
NOTE: 
Perform the following procedure only when operating the unit by itself.
This mode is used for checking the operations of the CD player and tape deck.
The operations are the same as the aging mode described in the service manual for the STR-W555/W777. However as this unit does
not have a fluorescent indicator tube, operating states and error statuses cannot be checked.
If the STR-W555/W777 is available, set the aging mode according to those service manuals.
Aging continues in the following sequence as long as no errors occur.
MSB 
 LSB
Aging of CD player (12 minutes)
Aging of deck A
Aging of deck B
12 minutes
– 7 –
SECTION 2
GENERAL
Front Panel
LOCATION OF PARTS AND CONTROLS
1
DISC SKIP/EX-CHANGE button
2
DISC 1 button
3
DISC 2 button
4
DISC 3 button
5
DISC NUMBER 
1` 2` 3 indicator
6
( (CD play) indicator
7
P (CD pause) indicator
8
6 OPEN/CLOSE button
9
p (CD stop) button
10
·P (CD play pause) button
11
œ (Deck A play) indicator
12
r (Deck B rec) indicator
13
P (Tape (Deck B pause)) indicator
14
œ (Deck B play) indicator
15
· (Deck B play) button
16
ª (Deck B play) button
17
π (Deck B stop) button
18
§ (Deck B eject) button
19
Casette lid (Deck B)
20
DIRECTION MODE button
21
P PAUSE button
22
r REC button
23
HI-SPEED DUBBING button
24
CD SYNCHIRO button
25
DOLBY NR button
26
Casette lid (Deck A)
27
§ EJECT (Deck A) button
28
π (Deck A stop) button
29
ª (Deck A play) button
30
· (Deck A play) button
31
CD Disc tray
1
29
30
31
28
27
19
20
21
22
23
26
24
25
14
11 12 13
15
16
17
18
2 3 4
5
7
8
6
9
10
– 8 –
SECTION 3
DISASSEMBLY
Note:
 Follow the disassembly procedure in the numerical order given.
3-1. LOADING PANEL
3-2. BACK PANEL AND CD MECHANISM DECK
2
Pull-out the disc tray.
1
 Turn the cam to the
    direction of arrow.
3
 Loading panel
    (Remove two claws)
Two claws
1
 Screw
    (BVTP3x8)
2
 Cover (SC)
4
 Two screws
    (BVTP3x10)
3
 System cable
5
 Three screws
    (BVTP3x10)
6
 Two screws
    (BVTP3x8)
7
 Back panel
8
 Two screws
    (BVTP3x10)
 Screw
    (BVTP3x10)
 Flat type wire
    (19core, CNS103)
!™
 Connector
    (CN111)
 Connector
    (CN112)
 CD mechanism deck
9
 Dummy board
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