When Replacing Eeprom (Memory) Ic - Toshiba 30HF84 Service Manual

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.
ADDRESS DATA
INIT 000 DF
CRT ON 0010
OEC7111A_073
FIG. 1
1. Enter DATA SET mode by setting VOLUME to minimum.
2. Press both VOL. DOWN button on the set and Channel button (6) on the 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 UP/DOWN button on the remote, step through the ADDRESS until
required ADDRESS to be changed is reached.
4. Press RIGHT/LEFT button to select DATA. When DATA is selected, it will "blink".
5. Again, step through the DATA using UP/DOWN button until required DATA value has been selected.
6. Pressing RIGHT/LEFT button 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.
After the data input, set to the initializing of shipping.
9. Turn POWER on.
10. Press both VOL. DOWN button on the set and Channel button (1) on the remote control for more than 2 seconds.
11. After the finishing of the initializing of shipping, the unit will turn off automatically.
The unit will now have the correct DATA for the new MEMORY IC.

WHEN REPLACING EEPROM (MEMORY) IC

+0 +1 +2
INI
00 DF A2 01
10 01 05 1F
20 8F 00 00
30 77 05 07
40 C0
8F 40
68 99 5B
50
60 EF DB DB
70 80 0F 00
80 FF C0 52
90 11 0A 00
A0 33 36 39
5A 5B 5C
B0
C0 6F 70 71
76 76 77
D0
E0 15 04 04
F0 54 --- ---
100 DC F1 3C
110 69 33 00
120 02 02 02
130 81 02 81
140 00 00 00
+3 +4 +5 +6 +7
C0 A6 1C 86 B8
24 40 45 5D 62
00 00 00 00 00
21 10 07 00 22
00 27 0A 2A 00
00 73 14 1F 2D
DB 15 00 00 26
3F 22 22 00 00
50 8B 00 06 06
07 00 00 00 B6
3C 3F 42 45 48
5D 5E 5F 61 63
71 72 72 73 73
77 77 77 78 78
FE E8 F0 FA 27
--- --- --- --- ---
22 22 5A 71 69
44 00 77 59 94
02 02 01 00 81
02 00 81 05 00
00 00 23 16 F8
Table 1
C-2
+8 +9 +A
+B +C
42 E4 B3 03 0D
45 4A 67 0F 15
00 19 00 5A 98
74 81 01 07 06
80 35 70
13 C0
24 16
00 00 00
06 07 09 00 C9
00 00 1D 6D FF
22 00 96 8B 8C
01 48 33 23 27
4B 4E 51 53 55
65 67
69 6A 6B
74 74 75 75 75
78 78
79 42 00
33 0E 21 32 32
--- --- --- --- ---
33 00 0E 38 22
56 02 01 82 04
00 81 00 88 00
FB F7 00 00 7C
08 16 00 03 03
+D +E +F
36 03 00
0A AA 00
33 04 76
40 40 40
72 99 59
00 00 F6
C8 E8 BC
FF FA FA
90 22 00
2A 2D 30
57 58 59
6C 6D 6E
75 76 76
00 00 0C
38 00 3F
--- --- ---
22 DA 71
03 05 02
D0 81 02
3E 00 00
--- --- ---