Sony DVW-709WS/709WSP manual DC Fans Precaution, Setting/Adjusting After Board Replacements

1-9. Note on the IF-716 Board Replacement

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Operation of the unit elevates the temperature of the IC package. Heated IC package may result in injury. Replace the IC after turning off the power and ample time for the IC to cool off.

The EEPROM (IC102) on the IF-716 board store the following data.

Ref. No. (Address)	Data stored
IC102 (D4/IF-716)	Model and Serial No.

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As for the IC102 on the IF-716 board, it is impossible to write the original data into a new IC.

When replacing the IF-716 board, remove the IC102 on the new IF-716 board and replace with the used IC on the former board.

If it becomes necessary to replace with a new IC, contact your local Sony Service Center/Sales Office.

1-10. Note on the RE-160 and RE-161 Boards

The RE-160 and RE-161 boards and electrical parts mounted on its boards cannot be replaced.

If these parts are out of order, replace the whole DC-DC converter.

1-11. DC Fans Precaution

The bearing of the DC fan is a precision part. Be careful not to grasp the fan by its blade, bump, and drop it. Unduly shock may damage the bearing in the fan, that can result in abnormal noise during the fan operation.

DVW-790WS/709WS/707

1-9. Note on the IF-716 Board Replacement 1-10. Note on the RE-160 and RE-161 Boards 1-11. DC Fans Precaution 1-12. Setting/Adjusting After Board Replacements

1-12. Setting/Adjusting After Board Replacements

The boards required setting/adjusting after replacement are as follows :

Board	Setting/Adjusting after Replacement
AD-155	7-8./8-8. R/B AD Gain Adjustment
AXM-21	Switch/Slit land settings
	(Refer to the MM P1*1, Section 1-10-1.)
CNB-11	Slit land settings
	(Refer to the MM P1*1, Section 1-10-2.)
DCP-17	Switch settings
	(Refer to the MM P1*1, Section 1-10-3.)
	Section 7./8. Camera System Electrical
	Alignment
	(when very good accuracy is required)
DVP-17	Switch settings
	(Refer to the MM P1*1, Section 1-10-4.)
	6-5-2. Playback Equalizer Adjustment,
	6-5-3. REC Current Automatic Adjust-
	ment
ES-23	7-2./8-2. VCO CONT Frequency Check
IF-716	Replace the IC102 with the used one on
	the former board.
TC-101	Switch settings
	(Refer to the MM P1*1, Section 1-10-6.)
	6-2-1. Battery End Detection Voltage
	Adjustment
TG-206*2	8-2. VCO CONT Frequecy Check
TG-207*3	Switch settings
	(Refer to the MM P1*1, Section 1-10-7.)
VA-191	7-8./8-8. R/B AD Gain Adjustment
CCD unit	5-1. Tape Path Alignment
	7-2./8-2. VCO CONT Frequecy Check

7-3./8-3. AD Clock Phase Adjustment

MM P1*1 Section 4./5. Camera Sysytem

Electrical Alignment

*1 : Maintenance Manual Part 1

*2 : For DVW-707/707P only

*3 : For DVW-790WS/790WSP/709WS/709WSP only

1-11

DVW-790WSP/709WSP/707P P2V1