TRUBLESHOOTING CV-160
4-3
Order of checking doubtful units
No. Symptom
1 2 3 4 5 6
27 Color reproduction of only the Y/C signal is bad. B
28 Color reproduction of only the composite signal is
bad.
B
29 The hue is abnormal. J H C D
30 The endoscopic image is not displayed. I H A B F C
31 The endoscopic image is wavering. H A B
32 Image enhancement is strong. B C
33 Image enhancement is weak. B C
34 Image enhancement does not function. B C
35 The AGC malfunctions. A C
36 Latitude is narrow. A B
37 The screen is hunching. A C
38 The screen is dark. N G A
39 The screen is bright. N G A
40 The automatic light control responds late. A C
41 The automatic light control does not function. N G A
42 The digital image is abnormally displayed. B C
43 The screen sways. B C
44 Sandstorm-like noises B C
45 The screen is white. B C
46 The screen is black. B C
47 AGC is not switched. O C A
48 LED is not lit on the front panel. J H F
49 The power switch LED is not lit. J H P F
50 VTR is not controlled. C L E
51 Video printer is not interlocked. C
52 Buzzer does not sound. C
53 Fail to freeze (from the scope switch). G A C B
54 Fail to freeze (from the keyboard). O C B
55 Fail to release the freeze (from the scope switch). G A C
56 Fail to release the freeze (from the keyboard). O C
57 Fail to release (from the scope switch). G A C
58 Fail to release (from the keyboard). O C
59 White balance is invalid. C B A
60 Fail to switch the output. D C B
61 Fail to change the measurement mode. D C A
62 Fail to change the contrast. O C B
63 Color tone step is invalid. J H F C D
64 Data is not stored. C
1 2 3 4 5 6
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