31
7.2.3.
(VHS) Self-Diagnosis Functions
This model has a self-diagnosis. If the VHS section detects trouble during installation or during use, the power is automatically
turned off or become power-save mode and it is memorized into the EEPROM (IC9705) as error code of two-digit number. It's mem-
orized error code can be displayed in "second" display portion (the last 2 digits of the FIP) by placing the unit is Service Mode Num-
ber 2 when turning on Service Information Display as for example "01" or "02" etc as below. If a second error occurs, the most
recent error will be memorized and can be displayed in Service Mode Number 2. It can be memorized until 3 self-diagnosis histories
in maximum.
In order to erase the memorized error code, press STOP and EJECT buttons on the Front Panel simultaneously over 5 seconds
during turning on Service Information Display mode.
7.2.3.1.
Memory of the self-diagnosis history
*This is effective only in Service Mode 3, 4, 5.
7.2.3.1.1.
Error Numbers at a glance
Note:
2* is as follows.
7.2.3.1.2.
Memory for the self-diagnosis history
1. The self-diagnosis result is memorized the state of the moment of detecting.
2. There are the histories from number 1 to number 3.
3. The latest error is memorized on history number 1, and then the old histories are shifted to the history number 2 and 3.
The error code memorized in the history number 2 and 3 is over-written by shift.
4. If the latest error is the same with the history number 1 (2nd-latest), it is not memorized.
(The same error code is not memorized in succession)
7.2.3.1.3.
Clear for the self-diagnosis history
1. Press FF and EJECT buttons on the VCR simultaneously over 5 seconds during turning on Service Information Display mode.
Memory No. (Error Code)
Reason
01
The cylinder could not be started. (Error of the cylinder or the cylinder driver.)
02
The CAP FG could not be detected.
03
Mechanism lock during without the unloading and the cassette-up.
04
Mechanism lock during unloading
05
S-reel pulse cannot be detected during unloading. (Error of the S-reel circuit or the Capstan circuit)
06
Mechanism lock during the Cassette-up.
09
Communication error between VHS Microprocessor (IC6001) and Timer Microprocessor (IC9701).
15
S-reel pulse cannot be detected when a cassette tape is inserted.
(Error of the S-reel circuit or the Capstan circuit)
16
Detection of the Cylinder lock during the constant rotation
17
Detection of S-reel lock during the constant tape running
18
Detection of T-reel lock during the constant tape running
2*
Refer to following Note
An error while the PG Automatic Adjustment
80
An exceptional ejection depends on a accidental error
20
NG1 in the PG Shifter Automatic Adjustment (The cylinder rotation is unstable during the automatic adjustment.)
21
NG2 in the PG Shifter Automatic Adjustment (The vertical sync signal is lacked while over 5 seconds on the alignment tape.)
22
NG3 in the PG Shifter Automatic Adjustment (The installing position of Heads to the cylinder is our of specification.
23
NG4 in the PG Shifter Automatic Adjustment (The servo is not locked to the cylinder for more than 10 seconds)
Summary of Contents for DMR-EZ49VEB
Page 5: ...5 2 2 Precaution of Laser Diode ...
Page 7: ...7 3 Service Navigation 3 1 Service Information 3 2 Caution for DivX except DMR EZ49VEB ...
Page 10: ...10 4 Specifications ...
Page 11: ...11 ...
Page 13: ...13 ...
Page 35: ...35 9 2 P C B Positions ...
Page 46: ...46 10 1 2 Checking and Repairing of Main P C B ...
Page 47: ...47 10 1 3 Checking and Repairing of RAM Digital P C B Module ...
Page 75: ...S 23 ...
Page 91: ...S 39 ...
Page 126: ...S 74 ...
