Sony ICD-BP100 Service Manual page 31

ICD-BP100/BP120
SERVICE MANUAL
Ver 1.1 2002. 07
Subject : 1. Cautions of FLASH MEMORY (IC706) exchange
[Precaution when the flash memory (IC706) is replaced]
When the flash memory (IC706) 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 (IC706) is
replaced, the BAD BLOCK check starts automatically and the
OPR (D703) lights in orange.
2. In about 4 to 5 minutes after start of the check, the OPR (D703)
changes the color to green indicating that the check is
completed.
MAIN BOARD
(SIDE A)
J101
MIC
(PLUG IN POWER)
J102
EAR
OPR
SUPPLEMENT-1
TP703
BP100
I
1 24
IC 108
12 13
IC 105
(SPM-02033)
Model Code Writing Procedure
1. After the BAD BLOCK check is complete, press the MENU
switch and the STOP switch at the same time. While keeping
pressing the MENU and the STOP switches simultaneously,
turn on the HOLD switch to start the test mode.
2. After the unit enters the test mode, connect TP703 of the MAIN
board and TP512 of the F-SW board with a jumper. Then the
unit enters the Model Code Writing mode.
When the unit is ICD-BP100, press the > switch. When
3.
the unit is ICD-BP120, press the zREC switch.
4. When the OPR (D703) lights in red, it indicates that the writing
is terminated with success. If the OPR (D703) lights in orange,
it indicates that the writing has failed with error. Make another
attempt of writing the model code from the beginning.
5. Remove the jumper between TP703 of the MAIN board and
TP512 of the F-SW board.
F-SW BOARD
(SIDE A)
A-B REPEAT
/PRIORITY
TP512
ERASE
IC 507
STOP
US Model
ICD-BP100/BP120
Canadian Model
AEP Model
UK Model
E Model
ICD-BP100
Tourist Model
ICD-BP100/BP120
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