When Replacing Eeprom (Memory) Ic - Toshiba VTV1400 Service Manual

Color television/ video cassette recorder
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If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to
ensure correct data settings while making reference to TABLE 1.
NOTE: Initial Data setting will not be possible if clock has been set. To reset clock, either unplug AC cord and allow
at least 30 minutes before Power On or alternatively, discharge backup capacitor.
+0
INI
0B0
---
0C0
04
0D0
3A
0E0
0F
0F0
A0
100
27
110
00
120
25
130
4C
140
6F
150
9D
1.
Enter DATA SET mode by setting VOLUME to minimum.
2.
While holding down VOLUME button on front cabinet, press key 6 on remote control for more than 2 seconds.
ADDRESS and DATA should appear as FIG 1.
3.
ADDRESS is now selected and should "blink". Using the PLAY or STOP button on the remote, step through the
ADDRESS until required ADDRESS to be changed is reached.
4.
Press ENTER to select DATA. When DATA is selected, it will "blink".
5.
Again, step through the DATA using PLAY or STOP button until required DATA value has been selected.
6.
Pressing ENTER will take you back to ADDRESS for further selection if necessary.
7.
Repeat steps 3 to 6 until all data has been checked.
8.
When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.
The unit will now have the correct DATA for the new MEMORY IC.

WHEN REPLACING EEPROM (MEMORY) IC

+1
+2
+3
+4
+5
---
---
---
00
05
6C
98
00
00
05
0F
4B
20
44
63
40
50
F0
5F
0F
C4
20
08
BF
10
03
07
15
F3
00
07
04
00
40
20
27
29
2B
2D
2F
4F
52
55
57
59
71
73
76
79
7C
A0
A5
AA
AF
B4
+A
+6
+7
+8
+9
30
00
C0
4C
00
63
65
66
47
1F
64
65
64
EA
00
F0
05
F3
60
99
00
00
00
00
00
23
42
20
11
F0
20
00
00
40
00
31
33
35
37
3A
5B
5D
5F
61
63
7F
82
85
88
8B
B9
BE
C3
C8
CD
Table 1
ADDRESS DATA
INIT 0B4 00
POWER ON 0010
PLAY/REC
0010
Fig. 1
C4-1
+B
+C
+D
+E
+F
E7
C4
C0
0A
21
3B
32
17
1D
1B
F5
97
90
68
5F
B2
9A
97
8C
B2
00
00
00
00
00
02
09
00
82
10
00
00
00
00
00
3D
40
43
46
49
65
67
69
6B
6D
8E
91
94
97
9A
D2
D9
E1
F0
FF

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