Toshiba D-VR610KU, Руководство по обслуживанию

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1-10-16 E9KGATR
FLOW CHART NO.13
Hi-Fi audio can not be playbacked normally. (Hi-Fi E-E mode is normal.)
Is the Playback Envelope signal outputted to
Pin(33) of IC1451? Is the Hi-Fi-H-SW signal inputted into to Pin(39) of
IC1451?
Yes Yes No
No
Check the Hi-Fi-H-SW line
between Pin(39) of IC1451
and Pin(30) of IC1501, and
replace P1 (BOARD MCV)
if defective. Replace
P1 (BOARD MCV).
Replace P1
(BOARD MCV).
FLOW CHART NO.14
Audio can not be recorded normally in the linear audio mode. (E-E mode is normal.)
Is the audio signal inputted into Pin(76,78,80) of IC1301?
Does the Bias oscillation circuit operate normally?
Is the audio signal outputted to Pin(10) of IC1301?
Replace P1 (BOARD MCV).
Yes
Yes
Is the audio signal outputted to Pin(9) of IC1301?
Yes
Yes
No
No
Check the line between Pin(6) of IC1451 and
Pin(76,78,80) of IC1301, and replace P1 (BOARD
MCV) if defective.
Check the Bias oscillation circuit (Q1421,Q1422,
Q1425,Q1426) and replace P1 (BOARD MCV)
if defective.
No
Replace P1 (BOARD MCV).
No
FLOW CHART NO.15
Audio can not be playbacked normally in the linear audio mode. (E-E mode is normal.)
Is there no dirt on the surface of ACE head assembly?
Is the audio signal supplied to Pin(6) of IC1301? Is the audio signal outputted to Pin(10) of IC1301?
Check the line between
Pin(10) of IC1301 and
Pin(4) of IC1451, and replace
P1 (BOARD MCV) if defective.
Readjust the height of the ACE head assembly.
Clean the surface of ACE head assembly.
No
Is the height of ACE head appropriate?
Yes
Yes
No Yes
Yes
No
No
Replace 1B1 (DECK ASSEMBLY).
Replace 1B1 (DECK ASSEMBLY).
Replace 1B1 (DECK ASSEMBLY).