Fp-121 Board; Dc-110 Board (Hkdw); Board (Hkdw-702) - Sony HDW-750 Maintenance Manual

1-17. Adjustments/Setting Items When Boards Are Replaced

1-17-10. FP-121 Board

Adjustment Items when Board is Replaced
System control adjustment and setting
Setting the data and time of internal watch
(For the setting procedure, refer to " 4-8. TIME/DATE
Display".)
10-4-1. Voltage Correction Adjustment
Audio system alignment
10-2-1. CH1 Unity Level Adjustment (For VCA)
10-2-2. CH2 Unity Level Adjustment (For VCA)
10-2-3. Side VR Voltage Adjustment (For VCA)
10-2-4. AGC Voltage Adjustment (For VCA)
10-2-5. CH1, CH2 Output Adjustment (Analog EE)
10-2-6. CH1, CH2 Distortion Factor Adjustment
10-2-7. Input Limiter Adjustment
10-2-8. D/A Output Adjustment
10-2-9. CH1, CH2 Output Check
10-2-10. Output Limiter Adjustment
10-3-2. CUE Playback Level Adjustment
10-3-4. CUE Record Level Adjustment-1
10-3-5. CUE Record Level Adjustment-2
1-17-11. EQ-88 Board
The EEPROM (IC1104) is installed in the EQ-88 board.
Implement the following adjustments when this IC is
replaced.
Adjustment Item when the Board is Replaced
RF System Adjustment
10-6-1. RF System Continuous Automatic Adjustment
10-6-2. Saving the RF System Adjustment Data
10-6-3. PB Channel Condition Check
10-6-4. REC Channel Condition Check
1-17-12. CCM-45 Board
Adjustment Item when the Board is Replaced
10-4-2. Antenna Tuning Frequency Adjustment
1-52
1-17-13. IFA-11 Board
EEPROM replacement
The EEPROM (IC202) is installed in the IFA-11 board.
When the IFA-11 board is replaced, remove IC202 from
the former board and reinstall it to the new replacement
IFA-11 board.
n
The initial data for this model cannot be written into the
new EEPROM (IC202) outside the factory.
When IC202 needs to be replaced due to defective IC,
contact your local Sony Sales Office/Service Center.
1-17-14. AT-143 Board
Setting the On-board Switches
Set the switch S2-2 on the AT-143 board when the AT-143
board is replaced, in accordance with the serial number of
the unit that the customer is currently using.
Ref. No. Name Description
(Address)
S2-2 MODEL Set it in accordance
(C-4/B side) SELECT with the serial No.
ON : 70000 series
OFF : 10000 series
1-17-15. DC-110 Board (HKDW-702)
When replacing the DC-110 board with the DC-110A
board, ROM version of the AT-143 board must be 1.30 or
higher.
Check the ROM version, and then upgrade the AT ROM
version if it is earlier than 1.30. (Refer to Section 1-24.)
Factory setting
OFF
and
40000 series
HDW-750/750CE V1