Panasonic Palmcorder VHSC PalmSight PV-L759 Service Manual page 95

EEPROM DATA
There is a EEPROM in this unit.
EEPROM
C.B.A.
Main C.B.A.
How to save the EEPROM data
Be sure to save EEPROM data before service and adjust-
ment in order to make sure to avoid an accidental data
loss as follows.
1. Select "1. Read (Save)/Write AII EEPROM datas." in Main
menu, and then press "Enter" key.
2. Select "1. Save all data of EEPROM" in Read (Save)/Write
All EEPROM datas menu, and then press "Enter" key.
3. Input the File name, and then press "Enter" key. The data
of EEPROM (IC305) will be stored to the PC.
How to rewrite the saved data to EEPROM
When it becomes impossible to adjust during service and ad-
justment, rewrite the saved data which stored in "How to save
the EEPROM data" to EEPROM as follows. And readjust.
1. Select "1. Read (Save)/Write AII EEPROM datas." in Main
menu, and then press "Enter" key.
2. Select "2. Data write using stored file" in Read (Save)/Write
All EEPROM datas menu, and then press "Enter" key.
3. Input the saved file name, and then press "Enter" key.
4. The data will be written in EEPROM (IC305).
How to initialize the EEPROM data
In case that the EEPROM IC (IC305) is replaced, be sure to
write the Initial data to EEPROM IC.
1. Select "1. Read (Save)/Write AII EEPROM datas." in Main
menu, and then press "Enter" key.
2. Select "3. Data write with initial data." in Read (Save)/Write
All EEPROM datas menu, and then press "Enter" key. And
press "Enter" key once again.
When replacing the EEPROM
In case that the EEPROM (IC305) is replaced, be sure to
write the data to EEPROM (IC305) on Main C.B.A. as follows.
1. Select "1. Read (Save)/Write AII EEPROM datas." in Main
menu, and then press "Enter" key.
3. Select "2. Data write using stored file." in Read (Save)/Write
All EEPROM datas menu, and then press "Enter" key. Input
the saved file name, and then press "Enter" key.
OR;
Select "3. Data write with initial data," and then press
"Enter" key. And press "Enter" key once again.
Note:
The adjusted data has been written to EEPROM after each
adjustments.
EEPROM IC Ref. No.
IC305
2-47
VR ADJUSTMENT
CAMERA SECTION
Frequency Adjustment
Purpose:
To set the chroma subcarrier.
Symptom of Misadjustment:
The picture will be no color. (The burst shifts)
Specifications:
14.31818MHz +/- 80Hz
Adjustment Procedure:
1) Remove the Side Case (L) Unit. Refer to "Disassembly/
Assembly Procedures of Cabinet", page 2-2.
Connect the Side L FPC unit to the camcorder as shown
in Fig.E5-1.
2) Connect the Frequency counter to TP601 of Main C.B.A.
3) Adjust C610 on the Main C.B.A. so that the frequency
becomes 14.31818MHz +/- 80Hz.
C610
EVF Unit
Side L FPC Unit
Fig.E5-1
TP601