MECHANISM TROUBLESHOOTING GUIDE
4-26
No cassette insert is done.
Does the lever assembly
switch operate?
Is the lever assembly switch
spring normal?
Does the CST IN switch
operate normally?
Add or replace the lever
assembly switches spring.
Is the Vcc of the main P.C.B
assembly?
YES
YES
Check the Syscon circuit.
YES
Check the power circuit.
NO
Is voltage between the cassette
switch terminal and the GND on
the main P.C.B assembly?
YES
Is there short between the cassette switch terminal
and the GND on the main P.C.B assembly?
Replace the main P.C.B assem-
bly or remove the short part.
NO
Check the mode switch position
and the Syscon circuit.
Replace the CST IN switch.
YES
NO
YES
NO
NO
Replace the F/L switch.
NO
NO
No cassette eject is done.
Does the L/D motor turn in reverse?
Check the L/D motor and the drive IC.
Replace the lever assembly switch.
Does the lever assembly switch operate?
YES
NO
NO
Does the arm assembly F/G operate?
YES
NO
Does the opener door operate?
YES
Replace the arm assembly F/L
Replace the opener door.
2. Front Loading Mechanism
A.
B.
Summary of Contents for SD-V55HTSU
Page 1: ...SERVICE MANUAL DVD VCR Home Theater System FILE NO 810 200425 SD V55HTSU SD V55HTSC ...
Page 55: ...1 54 P NO 3834RH0033S ...
Page 58: ...2 3 955 956 957 954 953 952 951 961 962 960 958 A900 2 Woofer Speaker Section V55HTW ...
Page 59: ...2 4 751 754 755 757 760 758 759 756 753 752 A700 3 Speaker Center Section V55HTC ...
Page 60: ...2 5 851 852 853 856 854 855 858 859 860 861 857 A800 4 Speaker Rear Front Section V55HTS ...
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Page 131: ...6 30 ...
Page 161: ...6 60 ...
Page 162: ...TOSHIBA CORPORATION 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 8001 JAPAN ...