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SERVICE NOTE
5.
Change of IC (Service Manual Page 9)
5-1.
Addition of IC2201 type on the VC-235 board.
For the IC2201, HG75C012SFL type is added, besides existing
MB87M1011PFF-G-BND type. In each type, the EEPROM data
and mounted parts were changed.
Also, which type of IC is mounted can be checked with the adjust-
ing remote commander.
MB87M1011PFF-G-BND type. In each type, the EEPROM data
and mounted parts were changed.
Also, which type of IC is mounted can be checked with the adjust-
ing remote commander.
Type check method:
1) Select page: 6, address: 6F, and set data: 01.
2) Select page: 6, and address: FF.
3) The type of IC2201 can be checked from the displayed data.
1) Select page: 6, address: 6F, and set data: 01.
2) Select page: 6, and address: FF.
3) The type of IC2201 can be checked from the displayed data.
Data change method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: F, and input the data in the following table.
1) Select page: 0, address: 01, and set data: 01.
2) Select page: F, and input the data in the following table.
Note:
To write in the non-volatile memory (EEPROM), press
the PAUSE button of the adjustment remote commander
each time to se the data.
the PAUSE button of the adjustment remote commander
each time to se the data.
3) Select page: 0, address: 01, and set data: 00.
Type
Data
MB87M1011PFF-G-BND
00
HG75C012SFL
03
HG75C012SFL
MB87M1101PFF-G-BND
Address
DATA
Address
DATA
NTSC
PAL
NTSC
PAL
23
14
15
23
1C
1D
67
69
65
67
A0
A0
68
64
72
68
AA
A8
• Differences of mounted parts
IC TYPE
HG75C012SFL
MB87M1101PFF
Ref.No.
1
-G-BND
2
C2214
0.1u
C2222
0.1u
C2224
0.1u
C2236
0.1u
IC2201
HG75C012SFL
MB87M1101PFF
-G-BND
R2223
8.2K
• Change of IC2201 type from 1 to 2:
No abnormality will arise in operation, even if C2214, C2222,
C2224, C2236 and R2223 are mounted.
C2224, C2236 and R2223 are mounted.
• Change of IC2201 type from 2 to 1:
Mount on C2214, C2222, C2224, C2236 and R2223.
5-2.
Change of IC4501 on the VC-235 board.
Due to a change of IC4501 (mechanism control), the version is
updated such as MP2
updated such as MP2
→
MP3
→
MP4. In each version, the
EEPROM data was changed.
Also, the version of IC4501 can be checked with the adjusting
remote commander.
Also, the version of IC4501 can be checked with the adjusting
remote commander.
Note 1:
Changing the version does not make any changes in sche-
matic diagrams and the rest.
matic diagrams and the rest.
Note 2:
Make it sure to confirm the version after replacing
IC4501.
IC4501.
Version check method:
1) Select page: 3, and address: FF.
2) The version of IC4501 can be checked from the displayed data.
1) Select page: 3, and address: FF.
2) The version of IC4501 can be checked from the displayed data.
Data change method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 8, and input the data in the following table.
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 8, and input the data in the following table.
Note:
To write in the non-volatile memory (EEPROM), press
the PAUSE button of the adjustment remote commander
each time to set the data.
the PAUSE button of the adjustment remote commander
each time to set the data.
3) Select page: 0, address: 01, and set data: 00.
5-3.
Change of IC4902 on the VC-235 board.
IC4902 (VC control) has been changed to MB91192PFF-G-117-
BND-ER.
Because of this change, the EEPROM date is changed.
BND-ER.
Because of this change, the EEPROM date is changed.
Data change method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 6, address: FF, and set data: 06.
3) Select page: F, address: 1F, set data: C2 (NTSC) or data: E0
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 6, address: FF, and set data: 06.
3) Select page: F, address: 1F, set data: C2 (NTSC) or data: E0
(PAL), and press the PAUSE button of the adjustment remote
commander.
commander.
4) Select page: 0, address: 01, and set data: 00.
Data
Version
12
MP1
14
MP2
15
MP3
16
MP4
Version
MP1
MP2
MP3
MP4
Address
A5
00
01
01
01
A7
31
31
70
70
A8
05
05
28
28
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