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29

29

No.

1

2

3

4

5

6

7

8

9

10

11

Description

LINC error
(Note that there are two types of errors cor-
responding to each side.)

Reserve error
(Note that there are two types of errors cor-
responding to each side.)

EMPTY

Invalid format

UNLOCK

NO SIGNAL

NO SIGNAL

Unable to output signal
(No ISO resource found)

LOOP

Bus reset generation

Bus reset generation during recording

Examples of causes of errors

Selected devices have 63 links and no more links can be
established.

STR-LSA1 have 63 links and no more links can be estab-
lished.

Unable to reserve
(Specified device is already reserved and cannot be con-
trolled.)

When an empty packet has been received after establishing
a link.
(This problem occurs when the opposing playing is not in
operation, when an MD is used to select input for a CD which
is not being replayed, and when a CD is not being
replayed when recording from a CD to an MD.)
This problem occurs when a signal in a separate format (i.e.,
a signal which cannot be replayed) is detected (i.e., when
recording to an MD when the channel is being used for
DV signals).

Invalid signal clock detected at a time when i.LINK IC PLL
is not locked.
(This error occurs when connected to a unit with improperly
designed output signal circuits.)

No input signals detected at a time when i.LINK device has
been selected.
(This error occurs when no input signals are detected after
switching from optical input to i.LINK input.)
No input signals detected in i.LINK mode.
(This problem occurs when the power of the opposing unit
is turned off after linking.)
Unable to interrupt output because bus is being used to ca-
pacity.
(This error occurs when multiple DV signals are being out-
put and the bus is too busy to generate an interrupt.)
A group has been created as a result of i.LINK cable con-
nections.
Bus reset has been generation.
(This occurs when a new device has been connected or a
device has been disconnected.)
Bus reset has been generation during recording.
(This occurs when a new device has been connected or a
device has been disconnected.)

Display on next model

Unit establishing link:

Cannot link

Unit being linked to:

Cannot link

• When an attempt is made to establish a link from device A

(i.e., a PC) to device B, and a link cannot be established
between device A and device B because device B is al-
ready linked to a anther device C, "Remote" will be dis-
played on device B and a "Cannot link" message will be
displayed on device A.

• When an attempt is made to establish a link from device B

(i.e., an MD) to device C (i.e., a CD) and the CD is already
linked to another device D (e.g., an MD), a "Cannot link"
message will be displayed on device B and a "Remote"
message displayed on device C.

Unit establishing link:

Cannot link

Unit being linked to:

Cannot link

• When an attempt is made to establish a link from device A

(i.e., a PC) to device B, and a link cannot be established
between device A and device B because device B is al-
ready linked to a anther device C, "Remote" will be dis-
played on device B and a "Cannot link" message will be
displayed on device A.

• When an attempt is made to establish a link from device B

(i.e., an MD) to device C (i.e., a CD) and the CD is already
linked to another device D (e.g., an MD), a "Cannot link"
message will be displayed on device B and a "Remote"
message displayed on device C.

NO SIGNAL

NO SIGNAL

NO SIGNAL

NO SIGNAL

NO SIGNAL

BUS FULL

LOOP CONNECT

NEW CONNECT

(Display flashes twice)

NEW CONNECT

Description of C code

• Remote device link

• Home device link

Device to which an attempt was made to establish a link is
already linked (i.e., connected) to another device.

• Remote device reserved

• Home device reserved

Device to which an attempt was made to reserve the device
has already been reserved by another device.

• Waiting for input

State in which link has been properly established (i.e., sig-
nals may be transmitted over bus) but no signal has yet been
sent.

• An attempt has been made to transmit a signal over a broad-
cast channel.

Sony DVs are designed to allow the use of 63 channels. MDs
also have the same design, and it is impossible to use the
same channel after it has already been used
(i.e., the same channel cannot be used again without the ability
to obtain channel authorization).
• Unable to perform clock synchronization

The remote device has been poorly designed and communi-
cations have reached the limit of stable PLL (where the PLL
is a chip used to stabilize the clock). Home device okay; fault
lies with remote device.
• No input signal
(Used for units able to perform i.LINK switching without
linking.)

•No input signal because remote device not powered on
(Used for units requiring linking for i.LINK input switch-
ing.)
• Bus full
Number of signals being transmitted over the bus exceeds
the maximum amount of signals which may be transmitted.

• i.LINK failure
Displayed on all units connected.
• Bus reset
Not displayed in C code because too complicated.

• Bus reset
Displayed only for recording unit. (C code displayed only
on MD when recording from a CD to an MD.)

Messages displayed in i.LINK test mode

12 P-to-P error

31 P-to-P error

22 Not IEC958 conf.
23 Invalid value in bit n
25 Invalid frequency
26 Not linear PCM

24 Unlocked

21 No signal

13 Insufficient input bandwidth
14 Channel full at input time
32 Insufficient output bandwidth
33Channel full at output time

Display mode

C78: 11
(When i.LINK device has
been selected)
C78: 12
(TUNER, ANALOG)

C78: 16

C78: 17

C78: 21

C78: 22

C78: 31

C78: 04

C78: 23

C78: 15

C78: 03

C78:32

Note 1

: i.LINK messages displayed only in upper-case characters.

Note 2

: Distinctions between “No signal” and “Cannot link” messages made by C code.

Note 3

: Note that No. 9 may not always be properly detected.

Comment 1 : As before, a “Can’t copy” message is displayed when it is impossible to record because of SCMS restrictions.
Comment 2 : C code C78 represents an improper connection (i.LINK connection).

30

30

If malfunctions caused by Optical pick-up such as sound skipping are suspected, follow the following check.

Other faults are suspected.
Check the threading mechanism, etc.

Start

NG

NG

NG

OK

OK

OK

Laser Power Check

5-6-2.

(See page 33)

5-6-3.

(See page 33)

5-6-4.

(See page 34)

Iop Compare

Auto Check

Replace Optical pick-up or MDM-7X2B

31

5-6-4. Auto Check
(See page 34)

Start

YES

NO

NO

NO

NO

NO

NO

NO

NO

YES

YES

YES

YES

YES

YES

YES

Replace IC195

Replace OP or IC195

Replace IC101, IC195, or D101

5-11. Iop NV SAVE (See page 37)

Replace OP, IC190, or IC195

Replace OP, IC102, IC190, 

or IC195

Replace OP, IC101, IC151, 

or IC195

Replace OP

Replace the spindle motor

End adjustments

After turning off and then on the power, 
initialize the EEPROM
For details, refer to 4-11. WHEN MEMORY NG IS 
DISPLAYED (See page 26)

• Abbreviation

OP: Optical pick-up

5-7. INITIAL SETTING OF ADJUSTMENT VALUE 

(See page 36)

5-9. TEMPERATURE COMPENSATION OFFSET 

ADJUSTMENT (See page 36)

5-10. LASER POWER ADJUSTMENT (See page 36)

5-12. TRAVERSE ADJUSTMENT (See page 37)
5-13. FOCUS BIAS ADJUSTMENT (See page 38)
5-16. AUTO GAIN CONTROL OUTPUT LEVEL

ADJUSTMENT (See page 39)

OP change in Err Display mode
Iop write

Spdl change in Err Display mode

32

5-7. Initial setting of adjustment values

5-8. Recording of Iop information

5-9. TEMP ADJUST

5-10. Laser power adjustment

5-11. Iop NV Save

5-12. Traverse adjustment

5-13. Focus bias adjustment

5-16. Auto gain adjustment

5-6-4. AUTO CHECK

To check the emission of the laser diode during adjustments, never
view directly from the top as this may lose your eye-sight.

As the laser diode in the optical pick-up is easily damaged by static
electricity, solder the laser tap of the flexible board when using it.
Before disconnecting the connector, desolder first. Before connect-
ing the connector, be careful not to remove the solder. Also take
adequate measures to prevent damage by static electricity. Handle
the flexible board with care as it breaks easily.

1) When replacing the following parts, perform the adjustments

and checks with 

 in the order shown in the following table.

2) Set the test mode when performing adjustments.

After completing the adjustments, exit the test mode.
Perform the adjustments and checks in “group S” of the test mode.

3) Perform the adjustments to be needed in the order shown.
4) Use the following tools and measuring devices.

• Check Disc (MD) TDYS-1

(Parts No. 4-963-646-01)

• Test Disk (MDW-74/GA-1) (Parts No. 4-229-747-01)
• Laser power meter LPM-8001 (Parts No. J-2501-046-A)
or

MD Laser power meter 8010S (Parts No. J-2501-145-A)

• Oscilloscope (Measure after performing CAL of prove.)
• Digital voltmeter
• Thermometer
• Jig for checking BD board waveform

(Parts No. : J-2501-196-A)

Optical

pick-up

IC101

IC102

IC151

IC190

IC195

D101

5) When observing several signals on the oscilloscope, etc.,

make sure that VC and ground do not connect inside the oscillo-
scope.
(VC and ground will become short-circuited.)

6) Using the above jig enables the waveform to be checked without

the need to solder.
(Refer to Servicing Note on page 7.)

7) As the disc used will affect the adjustment results, make sure

that no dusts nor fingerprints are attached to it.

Parts to be replaced

Adjustment