DCR-DVD405 (serv.man2) - Sony Movie Service Manual (repair manual). Page 10

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DCR-DVD405_L2

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Block

Function

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Detailed

Code

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-

Symptom/State

Non-standard battery is used.

Faulty disc is used.

Disc access error

Condensation.

Codec IC dose not return any reply

EEPROM data are rewritten.

Drive fault

Codec IC fault

Audio Codec IC fault

Difficult to adjust focus
(Cannot initialize focus.)

Zoom operations fault
(Cannot initialize zoom lens.)

The abnormalities in initialization of
the focus lens and the abnormalities in
initialization of the zoom lens occurred
simultaneously.

Handshake correction function does not
work well. (With PITCH angular
velocity sensor output stopped.)

Handshake correction function does not
work well. (With YAW angular velocity
sensor output stopped.)

Abnormality when flash is being charged.

Fault of writing to or erasing the
flashmemory

Fault of writing to or erasing EEPROM

Self-diagnosis Code

Repaired b

y:

Correction

Use the InfoLITHIUM battery.

Use a compatible disc with the camcorder.

Clean the disc with the supplied cleaning cloth.
Use a compatible disc with the camcorder.

Remove the disc, and insert it again after one hour.

Remove the power source. Reconnect it again and operate your
camcorder again

Make EEPROM data correct value. (Note 1)

Inspect or replacement of the mechanism deck, IC (IC4302 on
the MD-128 board) and drive block

Inspect or replacement of the codec IC (IC3001on the VC-427
board) peripheral circuits

Inspect or replacement of the Audio Codec IC (IC3001 on the
VC-427 board) peripheral circuits

Inspect the lens block focus MR sensor (pin ql, wa of CN1701
on the VC-427 board) when focusing is performed when the
focus buttons of the touch panel are pressed in the focus manual
mode, and the focus motor drive circuit (IC1701 on the VC-427
board) when the focusing is not performed.

Inspect the lens block zoom MR sensor (pin qh, qk of CN1701
on the VC-427 board) when zooming is performed when the
zoom lever is operated, and the zoom motor drive circuit
(IC1701 on the VC-427 board) when zooming is not performed.

Check whether the flexible board of the lens is broken, and
check whether it is inserted imperfectly. If there is no problem in
the  flexible board, inspect the focus/zoom motor drive circuit
(IC1701 on the VC-427 board).

Inspect PITCH angular velocity sensors (SE5501 on the FR-245
board) peripheral circuits.

Inspect YAW angular velocity sensors (SE5502 on the FR-245
board) peripheral circuits.

Checking of flash unit or replacement of flash unit. (Note 2)

Inspect the flash memory (IC3101 on the VC-427 board). (Note 1)

Inspect the EEPROM (IC2602 on the VC-427 board). (Note 1)

Note1: Refer to “9-2. Record of Self-diagnosis check” of “3-4. SERVICE MODE”, ADJ (9-876-933-51).
Note2: After repair, be sure to perform “1-6. PROCESS AFTER FIXING FLASH ERROR”.