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ICD-P110/P210
SECTION 1
SERVICE NOTE
1-1. CAUTIONS OF FLASH MEMORY (IC701)
EXCHANGE
[Precaution When the Flash Memory (IC701) is
Replaced]
When the flash memory (IC701) is replaced, be sure to perform the
BAD BLOCK check* and writing of the model code. If they are not
completed, the unit will not operate normally.
* BAD BLOCK check is to check the flash ROM memory area
(the BAD BLOCK area) where data cannot be guaranteed.
The resultant information of this check is stored in the TOC-
AREA so that the BAD BLOCK area should not be used.
[BAD BLOCK Check Procedure]
1. When the power is turned on after the flash memory (IC701)
is replaced, the BAD BLOCK check starts automatically and
the OPR (D701) lights in orange.
2. In about 30 seconds after start of the check, the OPR (D701)
changes the color to green indicating that the check is
completed.
1-2. NOTES FOR REPLACEMENT OF THE
MICROCOMPUTER (IC702)
The IC702 on the MAIN board has former and new types of models.
Former type : MB91F233LLGA-GE1 (flash microcomputer)
New type : MB91233LLGA-G-107E1 (mask microcomputer)
The service parts include only new types of models. When replacing
the IC702, check the model number. The transistors Q706 and Q707
for program write should be removed when the previous type is
installed.
MAIN BOARD (SIDE B)
TP721 D701D701
OPR (PB)
(REC) G
R
TP718 TP726 TP725 1
23
1
R730C708
ET701 Q704
R728R758
C729 C730
IC706
1-865-058-11
(11)
