Sharp DV-760H (serv.man3) Service Manual ▷ View online
DV-700S
DV-760S/H
DV-760S/H
9. TEST MODE
Memory Test Mode
Program version indicaiton.
Video Test Mode
Ordinary test pattern indication, and copy guard signal added test
pattern indication are given.
Mecha Test Mode
Servo system initialization, tray opening and closing, laser, servo,
continuous playback, jump test are performed.
Servo adjustment
Servo version indication, VC/FE/TE/RF AVRG, TRVSC, RF
value read mode
LEVEL, FO BIAS, FO GAIN, TR GAIN indication are given.
9-1.
EXPLANATION OF OPERATION AT THE SYSTEM START
9-1
Test Mode Operation
SystemOpe( )
DVDOpe( )
Systest( )
DVD Disc detection
CD Disc
detection
No Disc and
Test 0 (F0h) key
Eject or
error
Eject or
error
Power
Off
Power
Off
Memory Test
Model number
Program version
Region code
microcode version
Dynamic
Test
Tray Open/Close
Sled Move
DVD Servo
CD Servo
Video Test
Initial Screen
Test Pattern
'1' Key
'2' Key
'3' Key
FlashOpe( )
Reset
Start
Flash rewriting key
Static Test
Test0
(F0h)
key
Branching with
ten keys
Test0
Key
Test0
Key
Test0
(F0h)
key
OSD
Adjustment
value display
OSD
Adjustment
value display
Initial resetting
CDOpe( )
Note: For test mode input,
"F0h" = PLAY + Stop
The keys of main body are doubly pressed.
Systest( )
(0xF100)
Dinamic
Test
Video
Test
'1' Key
'2' Key
'3' Key
Transition of test mode status
(1)
Memory Test
Last Update display
ErrDisplay0 ErrDisplay1
10000000 ********
(last update)
(last update)
Play Key
System( )
Test0 Key
SystemMode
=
0xF100-0xF1FF
Memory Test
Model number
Program version
Region code
microcode version
Model Number display
(Model Number)
Play Key
Region code display
(Region code)
Play Key
Microcode version
display
(Microcode. Ver)
Play Key
Program Version display
(Program version)
Play Key
Servo version display
(Servo. Ver)
Play Key
ErrDisplay0 ErrDisplay1
10000001 ********
ErrDisplay0 ErrDisplay1
10000002 ********
ErrDisplay0 ErrDisplay1
10000004 ********
ErrDisplay0 ErrDisplay1
10000005 ********
ErrDisplay0 ErrDisplay1
10000003 ********
DV-700S
DV-760S/H
DV-760S/H
9-2
SysTest( )
(0xF100)
Memory
Test
Dinamic
Test
'1' Key
'2' Key
'3' Key
System( )
Test0 Key
Video
Test
SystemMode
=
0xF201-0xF204
(1)Test pattern display
20000001 00000000
(2)Copy guard (AGC alone)
20000002 00000000
Play
key
Play
key
Play
key
Play
key
Test0
Key
(3)Copy guard
(AGC + Color stripe 1)
20000003 00000000
(4)Copy guard
(AGC + Color stripe 2)
20000003 00000000
Transition of test mode status
(2)
Video Test
In Video Test mode, the color bar test pattern
is first displayed and output, and the display
data mode is changed every entry of PLAY key
as shown in the right. Here, it returns to Sys
Test ( ) if any Test 0 (F0h) key is input in the
test display.
Transition of test mode status
(3)
Dinamic Test
Systest( )
(0xF100)
Memory
Test
Dynamic
Test
'1' Key
'2' Key
'3' Key
System( )
Test0 Key
Video
Test
SystemMode
=
0xFC00-0xFDFF
Servo Initialize
ErrDisplay0 ErrDisplay1
30000000 00000000
ErrDisplay0 ErrDisplay1
3000E000 EEEEEEEE
(Servo Initial Err)
Tray Eject
ErrDisplay0 ErrDisplay1
30000001 00000000
ErrDisplay0 ErrDisplay1
3000E001 EEEEEEEE
(Tray Eject Err)
Open/Close Key
or hand-push Wait
Tray Load
ErrDisplay0 ErrDisplay1
30000002 00000000
ErrDisplay0 ErrDisplay1
3000E002 EEEEEEEE
(Tray Load Err)
Test0 Key
Wait
SRV Play Test ( )
Continuous replay jump
test mode
'1' or '2'or'3'
Key Wait
SRV Step Test ( )
Step execution mode
Laser Test ( )
Laser Test
mode
'1'
'2'
'3'
'1'
Key Wait
Refer to the step
test mode.
Refer to the jump
test mode.
ErrDisplay0 ErrDisplay1
DD000100 00000000
ErrDisplay0 ErrDisplay1
DD000200 00000000
ErrDisplay0 ErrDisplay1
DD000300 00000000
Every input of "1" key, LDON &
the sled moves outward, and the
spindle motor moves also insignificantly.
Note: Tray Err is not
retried in the mode.
DV-700S
DV-760S/H
DV-760S/H
9-3
SRV Step Test( )
SRV Step Test( )
Step Test Mode
ex. DVD mode
ErrDisplay0 ErrDisplay1
DD000200 00000000
ErrDisplay0 ErrDisplay1
DD000204 7 000000
ErrDisplay0 ErrDisplay1
DD000205 9
11
0000
ErrDisplay0 ErrDisplay1
DD000206
7 4 5 00(CD)
8 5
0000(DVD)
AdjDisplay( )
(0xFF00)
'PLAY'
'STILL'
'PLAY'
'PLAY'
'STILL'
'STILL'
'PLAY'
DDT step 1 operation
ErrDisplay0 ErrDisplay1
DD000201 2 3 4 00
ErrDisplay0 ErrDisplay1
DD00E201 2 3 4 EE
'PLAY' or 'STILL'
'STILL'
ErrDisplay0 ErrDisplay1
DD000202 3 6 0000
'PLAY'
'STILL'
ErrDisplay0 ErrDisplay1
DD000203 4 6
11
00
'PLAY'
'STILL'
DDT step 1 operation
Executed till focus of DDT is turned on.
The numerals shown on Err Display 1
indicate the following adjustment values.
DDT step 2 operation
Track balance adjustment and track
thread on are executed.
DDT step 3 operation
After RF gain is adjusted for a certain
time, the just focus is adjusted.
After end, RF gain adjustment is started
again.
DDT step 4 operation
Focus gain is adjusted.
DDT step 5 operation
Track gain is adjusted.
DDT step 6 operation
On the 2-layer disc, the just focus
adjustment and focus gain adjustment
of layer 1 are done.
On CD, interrupt of SUB-Q is allowed,
TOC is read/set, and mute is turned off.
(for error)
(for error)
(for error)
(for error)
(for error)
(for error)
ErrDisplay0 ErrDisplay1
DD00E202 3 6 00EE
ErrDisplay0 ErrDisplay1
DD00E203 4 6
11
EE
ErrDisplay0 ErrDisplay1
DD00E204 7 0000EE
ErrDisplay0 ErrDisplay1
DD00E205 9
11
00EE
ErrDisplay0 ErrDisplay1
DD00E206
7 4 5
EE(CD)
8 5
00EE(DVD)
DDT step 2 operation
DDT step 3 operation
DDT step 4 operation
DDT step 5 operation
DDT step 6 operation
'PLAY' or 'STILL'
'PLAY' or 'STILL'
'PLAY' or 'STILL'
'PLAY' or 'STILL'
'PLAY' or 'STILL'
Servo adjustment value
Reading-out mode
2
...........
Focus Offset
3
...........
Track Offset
4
...........
0-Layer Focus Balance
5
...........
1-Layer Focus Balance
..............
In case of CD, focus balance after correction.
6
...........
Track Balance
7
...........
0-Layer Focus Gain
8
...........
1-Layer Focus Gain
9
...........
Track Gain
11
...........
RF Gain
SRVPlayTest( )
Continuous replay & jump mode
ErrDisplay0 ErrDisplay1
DD000300 ********
SRV Play Test( )
In the continuous replay mode, the current sector
address is displayed on ErrDisplay 1.
Key Wait
TR Jump command publication
In SRV Play Test ( ), key is input and number of TR jumps is specified as follows.
[Next replay]
= Layer Jump
* Here, key allocation may be changed.
* Layer jump operation is not guaranteed except during 2-layer DVD test.
Key Name
[1]
[4]
[7]
[Clear]
[2]
[5]
[8]
[Skip(-)]
(Code)
01h
04h
07h
1Fh
02h
05h
08h
2Dh
Jump
Number of TRs
-1
-102
-510
-511
-765
-766
-7000
-15000
Key Name
[3]
[6]
[9]
[Memory]
[Repeat]
[A-B]
[Program]
[Skip(+)]
(Code)
02h
06h
09h
1Ch
35h
36h
1Eh
2Eh
Jump
Number of TRs
+1
+102
+510
+511
+765
+766
+7000
+15000
DV-700S
DV-760S/H
DV-760S/H
9-4
DVDOpe( )
(0x4000)
CDOpe( )
(0x1000)
AdjDisplay(*)
(0xFF00)
Test1
(F1h)
key
Test1
(F1h)
key
During stop in DVD/CD/VCD mode,
servo adjustment value reading-out
mode is selected if Test 1 key (F1h)
is input.
(1)Servo version display
F1000001 ********
'PLAY'
In the servo adjustment value reading-out mode,
the focus offset value is first displayed. Every input
of PLAY key, the displayed data is changed as
shown in the left.
After the servo step test, the internal circumference
SW value (ID) display is not defined.
SRV Step Test( )
After measurement is ended in the servo
step test mode,the servo adjustment value
reading-out mode is selected.
'PLAY'
'PLAY'
'PLAY'
'PLAY'
'PLAY'
'PLAY'
'PLAY'
'PLAY'
'PLAY'
If the servo adjustment value reading-out
mode is selected, disc is stopped.
'PLAY'
Argument of AdjDisplay(*)
is char 0:CD/1:DVD.
'PLAY'
(2)Focus offset value display
F1000002 ********
(3)Track offset value
display
F1000003 ********
(4)0-layer focus balance value display
F1000004 ********
(5)1-layer focus balance value display
F1000005 ********
(6)Track balance value display
F1000006 ********
(7)0-layer focus gain value display
F1000007 ********
(8)1-layer focus gain value display
F1000008 ********
(9)Track gain value
F1000009 ********
(10)RF amplitude value display
F100000A ********
(11)RF gain value display
F100000B ********
(12)Internal circumference switch ID
value display
F100000C ********
Servo adjustment value
reading-out mode
OSD adjustment value display
1. Press "FOh" key during disc replay. (Multiple press of S. PICTURE and STOP)
2. The following screen is displayed on OSD.
3. OSD display is turned off with "FOh" key.
12345678
9
1
0
1
1
1
2
1
31
41
51
6
17
18
19
20
21
22
23
24
25
26
(
1)
1, 2
..................
0-layer focus gain
(2)
3, 4
..................
1-layer focus gain
(3)
5, 6
..................
0-layer focus balance
(4)
7,
8
..................
1-layer focus balance
(In case of CD, 0-Layer focus balance after correction.)
(5)
9, 10
................
Track offset
(6)
11, 12
..............
Track gain
(7)
13, 14
..............
Track balance
(8)
15, 16
..............
RF gain
Hexadecimal data from (1) to (8).
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