DOWNLOAD Sony GV-D300 Service Manual ↓ Size: 27.72 MB | Pages: 127 in PDF or view online for FREE

Model
GV-D300
Pages
127
Size
27.72 MB
Type
PDF
Document
Service Manual
Brand
Device
VCR
File
gv-d300.pdf
Date

Sony GV-D300 Service Manual ▷ View online

5-41
4-3.
SERVICE MODE
1. Setting the Test Mode
Page D
Address 10
• Before setting the data , select page: 0, address: 01, and set data:
01.
• For page D, the data set is recorded in the non-volatile memory
by pressing the PAUSE button of the adjustment remote
commander. In this case, take note that the test mode will not be
exited even when the main power is turned off (8.4Vdc).
• After completing adjustments/repairs, be sure to return the data
of this address to 00, and press the PAUSE button of the adjustment
remote commander.
Select page: 0, address: 01, and set data: 00.
2. Emergence Memory Address
Page C
Address 30 to 3B
When no error occurs in this unit, data “00” is written in the above
addresses (30 to 3B). when first error occurs in the unit, the data
corresponding to the error is written in the first emergency address
(30 to 33). In the same way, when the second error occurs, the data
corresponding to the error is written in the second emergency address
(34 to 37). Finally, when the last error occurs, the data corresponding
to the error is written in the last emergency address (38 to 3B).
Note:
After completing adjustments, be sure to initialize the data of
addresses 30 to 3B to “00”.
Initializing method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 3, address: 01, set data: FD, and press the PAUSE
button.
3)
Select page: 0, address: 01, and set data: 00.
Function
Normal
Forced VTR power ON
Data
00
02
Contents
EMG code when first error occurs
Upper: MSW code when shift starts when first
error occurs
Lower: MSW code when first error occurs
Lower: MSW code to be moved when first error
occurs
EMG code when second error occurs
Upper: MSW code when shift starts when second
error occurs
Lower: MSW code when second error occurs
Lower: MSW code to be moved when second error
occurs
EMG code when last error occurs
Upper: MSW code when shift starts when last error
occurs
Lower: MSW code when last error occurs
Lower: MSW code to be moved when last error
occurs
Address
30
32
33
34
36
37
38
3A
3B
2-1. EMG Code (Emergency Code)
Codes corresponding to the errors which occur are written in
addresses 30, 34 and 38. The type of error indicated by the code are
shown in the following table.
Emergency Type
No error
Loading motor emergency during loading
Loading motor emergency during unloading
T reel emergency during normal rotation
S reel emergency during normal rotation
T reel emergency (Short circuit between S reel
terminal and T reel terminal)
FG emergency at the start up of the capstan
FG emergency at the start up of the drum
FG emergency during normal rotation of the drum
Code
00
10
11
22
23
24
30
40
42
5-42
2-2. MSW Code
MSW when errors occur:
Information on MSW (mode SW) when errors occur
MSW when movement starts:
Information on MSW when movements starts when the mechanism position is moved (When the L motor is moved)
MSW of target of movement:
Information on target MSW of movement when the mechanism position is moved
1010=A
1111=F
 UNLOAD
Lock released
Cassette compartment
LS chassis movement section
Pinch roller pressing
Tension regulator ON
EJECT
BL
1110=E
1111=F
USE
BL
1100=C
1111=F
SOFF
BL
1101=D
1111=F
DS
BL
1001=9
1111=F
LE
BL
0101=5
1111=F
STOP
BL
0111=7
1111=F
FF
BL
BL
1011=B
1111=F
0011=3
RP
RVS
LOAD 
Mechanical Position
Position
EJECT
BL
USE
SOFF
DS
LE
STOP
FF
RP
RVS
NULL
Code
A
F
E
C
D
9
5
7
B
3
0
Contents
Position at which the cassette component lock is released, and position at the farthest unload side
mechanically at which the mechanism can move no further in the UNLOAD direction.
BLANK code, at the boundary between codes. The mechanism will not stop at this code during
operations. (Excluding LOAD/UNLOAD)
EJECT completion position. When the cassette is ejected, the mechanism will stop at this position.
Cassette IN standby. The guide will start protruding out as the mechanism moves towards the
LOAD position.
Code during loading. Code output while the LS chassis is moving.
LS operations and guide loading are performed here.
Current limiter is turned off.
Stop position in the loading state. The pinch roller separates, the tension regulator returns, and the
brake is imposed on both reels.
FF position. The tension regurator is half on. This position is not used except for the FF mode.
PB, REC, CUE, PAUSE, FX2, FWD-SL positions. When the pinch roller is pressed, and the
tension regulator is ON, the mechanism is operating at this position in modes in which normal
images are shown.
Reverse running position. REW, REV, RX1, RX2, and RVS-SLOW are performed at this position.
Code not exsisting in the MD. When errors occur when the loading motor is not driving, this code
is memorized.
5-43
3. Bit value discrimination
Bit values must be discriminated using the display data of the
adjustment remote commander for following items. Use the table
below to discriminate if the bit value is “1” or “0”.
Page
Address
bit3 to bit0 discrimination
bit7 to bit4 discrimination
Display on the adjustment remote commander
Display on the
adjustment
remote
commander
0
1
2
3
4
5
6
7
8
9
A (
A
)
B (
b
)
C (
c
)
D (
d
)
E (
E
)
F (
F
)
Bit values
bit3
or
bit7
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
bit2
or
bit6
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
bit1
or
bit5
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
bit0
or
bit4
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
A
B
Example:
If “8E” is displayed on the adjustment remote commander, the
bit values for bit7 to bit4 are shown in the 
A column, and the
bit values for bit3 to bit0 are shown in the 
B column.
4. Switch check (1)
Page 2
Address 43
Using method:
1)
Select page: 2, address: 43.
2)
By discriminating the bit value of display data, the state of the
switches can be discriminated.
Bit
0
1
2
3
4
5
6
7
Function
VTR MODE SW
EJECT SW
CC DOWN SW
When bit value=1
OFF
OFF
OFF
When bit value=0
ON
ON
ON
5-44E
5. Switch check (2)
Page 2
Address 5C to 62
Using method:
1)
Select page:2, address: 5C to 62.
2)
By discriminating the display data, the pressed key can be discriminated.
6. Record of Use check
Page 2
Address 35 to 3D
Using method:
1)
The record of use data is displayed at page: 2, addresses: 35 to 3D.
Note:
This data will be erased when the coin lithium battery (FP-571 board BT001) is removed (reset).
Address
5C
(AD0)
(IC2302 
*ª)
5D
(AD1)
(IC2302 
(º)
5E
(AD2)
(IC2302 
(¡)
5F
(AD3)
(IC2302 
(™)
61
(AD5)
(IC2302 
(¢)
62
(AD6)
(IC2302 
(∞)
00 to 18
STOP
(FK-71 board S001)
PAUSE
(FK-71 board S007)
DISPLAY
(FK-71 board S009)
MENU
(IO-62 board  S102)
PANEL CLOSE
(IR-29 board S361)
LASER LINK
(IO-62 board S101)
19 to 46
PLAY
(FK-71 board S002)
SLOW
(FK-71 board S008)
TITLE
(FK-71 board S010)
EXECUTE
(IO-62 board S107)
LCD BRIGHT +
(IO-62 board S103)
Data
47 to 74
REC
FK-71 board
 S003,004
LCD BRIGHT –
(IO-62 board S104)
75 to A4
FF
(FK-71 board S005)
AUDIO DUB
(FK-71 board S012)
VOLUME +
(IO-62 board S105)
A5 to D4
REW
(FK-71 board S006)
ASSEMBLE
(FK-71 board S013)
VOLUME –
(IO-62 board S106)
D5 to FF
No key input
No key input
No key input
No key input
PANEL OPEN
(IR-29 board S104)
No key input
Address
35
36
37
38
39
3A
3B
3C
3D
             Function
Drum rotation
counted time
(BCD code)
User initial power
on date
(BCD code)
Final condensation
occurrence data
(BCD code)
Minute
Hour (L)
Hour (H)
Year
Month
Day
Year
Month
Day
Remarks
10th place digit and 1st place digit of counted time (decimal digit)
1000th place digit and 100th place digit of counted time (decimal digit)
After setting the clock, set the date of power on next
                     
                     
Page of 127
Display

Click on the first or last page to see other GV-D300 service manuals if exist.