Sony DSR-300 Service Manual page 160

Auto Check Error Code
If "At ng-02" is displayed as the result of Auto Check and when the RESET (MENU SET) button is kept pressed for about
two seconds while "At ng-02" is displayed, the two digit error code appears.
Displays, Error Contents, Measures or Possible Abnormalities
Code Error contents, measures or possible abnormalities
00 It is in the status that the data other than the video and audio data which is recorded on a tape, cannot be read out.
The signal circuit from the head of drum to IC of the DPR-99/99P board is abnormal.
Causes (possible abnormalities)
. Poor contact of connectors
. Head clogging
. The RP-91 board is defective.
. The MB-753 board is defective.
. The DPR-99/DPR-99P board is defective.
other than 00 The error contents, measures and possible abnormalities are different depending upon the respective processes. (Refer to
the followings.)
1. Cassette Out
When the Auto Check is performed, the cassette compartment is automatically opened (when a cassette is present, it is
ejected), and the Auto Check is performed during the period from the time when user inserts a cassette until the cassette
compartment is closed. When any abnormalities are detected, the error code is displayed.
Displays, Error Contents, Measures or Possible Abnormalities
Code Error contents, measures or possible abnormalities
12 The cassette compartment is locked.
13 The cassette compartment is not attached.
18 Tape top sensor does not respond.
19 Tape end sensor does not respond.
1a Both tape top and tape end sensors do not respond.
1a LEDs of the tape top end sensor are abnormal. ON/OFF voltage is abnormal.
20 The function cam does not enter the STBY mode.
21 LED of the mechanical function cam mode sensor is abnormal.
22 LED of the mechanical function cam mode sensor is abnormal.
23 LED of the mechanical function cam mode sensor is abnormal.
24 LED of the mechanical function cam mode sensor is abnormal.
28 The detection voltage/current of the function cam motor does not return to 0.
38 The detection voltage/current of the drum motor does not return to 0.
48 The detection voltage/current of the capstan motor does not return to 0.
50 LED of the supply reel FG sensor is abnormal.
70 LED of the take-up reel FG sensor is abnormal.
c1 LED of the reel position (standard cassette position) sensor is abnormal.
c2 LED of the reel position (mini cassette position) sensor is abnormal.
c8 The detection voltage/current of the reel shift motor does not return to 0.
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