Sharp DV-660H (serv.man2) Service Manual ▷ View online
DV-660S
DV-660H
DV-660H
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 6 000000
'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 6 0000EE
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
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
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
9-3
DV-660S
DV-660H
DV-660H
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).
9-4
DV-660S
DV-660H
DV-660H
FLOW CHART NO.6
The fluorescent display tube does not light.
No
Is 5V voltage supplied to the IC5001 pin 18?
Check the AT 5V line.
Yes
No
Is -30V voltage supplied to the IC5001 pin 16?
Check the AT -30V line.
Yes
No
Is 4.0 MHz oscillation signal confirmed on the
IC5001 pins 19 and 20?
Check FL5001, IC5001 and their periphery.
Yes
No
Check the signal lines of FIP DA, FIP CK, FIP CS
of IC5001 and IC504.
Check or replace IC5001 and IC504.
FLOW CHART NO.7
The key operation is disabled.
No
Is key switch contact and installation state normal?
Replace Key switch.
Yes
Is the control voltage input normally into the pins
95 and 96 of IC504?
No
Check the power circuit and D5001.
No
Check for damages such as crack on the
fluorescent display tube.
Yes
Is the filament voltage supplied to both ends of
pins 1, 2 and 61, 62 of fluorescent display tube?
Yes
Check the fluorescent display tube and its periphery.
10. TROUBLESHOOTING
FLOW CHART NO.1
The power cannot be turned on.
Is the fuse normal?
Refer to the flow chart No.3 power trouble-shooting.
No
No
Is normal state restored when the power cord is
once withdrawn and then inserted again after
several seconds?
Replace the fuse.
Yes
Yes
No
Is the AT 5V line voltage normal?
Is there leaking or short-circuited primary side
component? (Q9007, Q9010, D9016, T9001,
D9012-3, C9021-2, etc.)
Yes
Is the voltage of AT 12V, AT -30V and filament
normal?
No
Check each rectifying circuit of secondary circuit.
FLOW CHART NO.2
FLOW CHART NO.3
The fuse blows out.
Is there leaking or short-circuited primary side
component?
FLOW CHART NO.4
When the output voltage fluctuates.
No
Does the secondary side photocoupler circuit
operate normally?
Check the circuit and replace the parts.
(D9020,D9014,D9009-11,Q9006,Q9009,etc.)
Yes
No
Does the primary side photocoupler circuit
operate normally?
Check the circuit and replace the parts.
(D9020,R9030,D9021-3,etc.)
FLOW CHART NO.5
When buzz is heard from the vicinity of power circuit.
Check for short-circuiting of rectifying diode and circuit in each rectifying circuit of secondary side.
(D9005-8,D9025,IC9001-3,Q9001,Q9005,etc.)
No
The power cannot be turned on.
Is P-CON(H) of IC504 pin 116 changed from 'L'
level to 'H' level?
No
Is the Q9005 base changed from 'L' level to 'H'
level?
Replace IC504.
Yes
Yes
No
Is the AUDIO 9V SW. circuit turned on?
Check the line from the IC504 pin 116 to the Q9005
base.
Refer to the flow chart No.9.
No
Check for short-circuiting of rectifying diode and
circuit in each rectifying circuit of secondary side.
Yes
Replace D9020.
FLOW CHART NO.8
The operation from the remote control is disabled.
Although the operation on the deck is possible, the
remote control operation is disabled.
No
Replace the remote control transmitter (take proper
measures as necessary).
Yes
No
Is 5V voltage supplied to the pin 3 terminal of
remote control receiver?
Check AT 5V line.
Yes
No
Is 'L' pulse signal generated from the pin 1 terminal
of receiver when the remote control transmitter is
operated?
Replace the remote control receiver.
Yes
No
Is pulse signal supplied to the pin 32 of IC504?
Check the line between the remote control receiver
and the IC504 pin 32.
Yes
Replace IC504.
OFF
S8101
S8108
S8109
PLAY
S8103
STOP
STILL/PAUSE
KEY-1
KEY-2
OPEN/CLOSE
10-1
DV-660S
DV-660H
DV-660H
FLOW CHART NO.9
AUDIO 9V is not output.
Is 12V voltage supplied to the IC9001 pin 3?
No
Check the secondary circuit AT 12V line.
Yes
Is there output to the IC9001 pin 1?
No
Check the IC9001 periphery circuit and AT 12V line.
Refer to the flow chart No.2 <The power cannot be
turned on>.
Replace Q9001.
FLOW CHART NO.10
PC 3.3V is not output.
No
Is 5V voltage supplied to the IC9003 pin 1?
Check the secondary circuit AT 5V line.
Yes
Is there output to the IC9003 pin 2?
No
Check the IC9003 periphery circuit and AT 5V line.
Yes
Check for load circuit short-circuiting or leak.
No
Check the periphery circuit when Q9001 is heated.
Yes
Is 9V voltage output to the Q9001 collector?
No
Check for load circuit short-circuiting or leak.
No
No
No
No
Yes
Is FE signal input into the IC707 pin 38?
(Checking of symptom)
Check the line between the IC303 pin 21 and the IC707 pin 38.
Yes
Yes
Is the focus control signal output to the IC707 pin 43?
Check the IC707 power source periphery circuit.
If it is normal, replace IC707.
Is the focus control signal from the IC504 pin 43
input into the IC702 pin 19?
Check the focus control signal (FOO) line between the
IC702 and the IC504.
Yes
No
Check the line between the IC702 and the AB connector.
No
Is the focus control drive voltage output from the
IC702 pins 17 and 18?
Yes
Is the focus control drive voltage applied to the AB
connector pins 4 and 2?
Yes
Check the connection of optical pickup cable.
If it is normal, replace the optical pickup.
FLOW CHART NO.13
The disc is ejected.
(In case of focus error)
Is 8V voltage applied to the IC702 pin 21?
Yes
Replace IC702.
Check AT 8V line.
No
Yes
Check the connection of optical pickup cable.
If it is normal, replace the optical pickup.
No
No
Is the Q301 (LD POWER ON) drive signal (SEL)
output to the IC707 pin 52?
Is the Q307 (LD POWER CTL) drive signal (LDO1)
output to the IC303 pin 45?(Checking of symptom)
Is 3.3V voltage applied to the Q301 emitter? Is 5V
voltage applied to the Q307 emitter?
Yes
Yes
Are 3.3V and 2.3V voltages applied to the AB
connector pin 11 and 9, respectively?
Check the D 3.3V (1) line and the A 5V line.
FLOW CHART NO.14
The disc is ejected.
(When the laser beam does not light.)
Check the line between the IC707 pin 52 and the Q301
base through Q304.
heck the line between the IC303 pin 45 and the Q307 base.
No
Check the line between the Q301 and Q307, AB connector.
Yes
Replace the main PWB unit.
No
No
Set the disc on the disc tray.
Is it possible to hold normally the disc with the chuck?
Yes
Yes
Yes
Is the level of RF signal which is output from the
IC303 pin 28 normal?
Yes
Check the video amplifier unit and the audio amplifier unit. (IC2002-4, IC801-3)
Check for contamination of objective lens of optical pickup.
FLOW CHART NO.15
Both video and audio do not operate normally
.
Check the loading switch.
No
Replace the optical pickup unit.
FLOW CHART NO.11
The disc tray cannot be opened and closed.
No
Is the signal from the IC504 pins 70 and 69 input
into the IC702 pins 6 and 7?
Check the LD-REV/FWD signal line between the
IC702 and the IC504.
Yes
No
Is the loading motor drive voltage output from the
IC702 pins 10 and 11?
Is 8V voltage applied to the IC702 pin 21?
Yes
No
Is the loading motor drive voltage applied to the
AG connector pins 3 and 2?
Check the line between the IC702 and the AG connector.
Yes
Yes
Check for mechanism and gear engagement and
breakage.
Replace IC702.
Check AT 8V line.
No
No
No
No
No
The disc is ejected.
(In case of focus error)
Does the optical pickup move up and down after the
disc is removed? (Checking of symptom).
Refer to (When the focus servo does not function).
Yes
Yes
Yes
Is FE signal output to the IC303 pin 21 when the
disc is set?
Is there input signal on the IC303 pins (49, 54), (50, 55),
(46, 52), and (47, 53)?
Is there output signal on the IC301 pins 18, 17, 16, and 15?
Check the connection of optical pickup cable.
If it is normal, replace the optical pickup.
FLOW CHART NO.12
10-2
Click on the first or last page to see other DV-660H (serv.man2) service manuals if exist.