6-38
3-1.
PREPARATIONS BEFORE ADJUSTMENT
The following measuring equipment are used for video section
adjustment.
3-1-1.
Equipment required
1)
Monitor TV
2)
Oscilloscope, dual trace, 30MHz bandwidth or more with delay
mode function.
(Use 10 :1 probe unless otherwise specified.)
3)
Frequency counter
4)
Digital voltmeter
5)
Audio generator
6)
Audio level meter
7)
Audio distortion meter
8)
Audio attenuator
9)
Regulated power supply
10) Alignment tape
〈
For PAL model
〉
• For tracking adjustment (WR5-1CP)
Parts code : 8-967-995-07
• For normal mode video frequency response
adjustment (WR5-6C)
Parts code : 8-967-995-17
• For confirmation of normal mode operation
for SP (WR5-5CSP)
Parts code : 8-967-995-47
or (WR5-4CSP)
Parts code : 8-967-995-46
or (WR5-9CS)
Parts code : 8-967-995-28
for LP (WR5-4CL)
Parts code : 8-967-995-56
〈
For NTSC model
〉
• For tracking adjustment (WR5-1NP)
Parts code : 8-967-995-02
• For normal mode video frequency response
adjustment (WR5-6N)
Parts code : 8-967-995-12
• For confirmation of normal mode operation
for SP (WR5-5NSP)
Parts code : 8-967-995-42
or (WR5-4NSP)
Parts code : 8-967-995-41
or (WR5-9NS)
Parts code : 8-967-995-23
for LP (WR5-4NL)
Parts code : 8-967-995-51
3-1-2.
Precautions on adjustment
The EVF (electronic viewfinder) is not necessary for video section
adjustment.
Remove the following connector to remove the EVF.
1.
CF-44 board CN403 (8-pin) : B/W EVF model
CF-44 board CN404 (16-pin) : COLOR EVF model
The audio board (MA-295) board is not necessary except for “Audio
System Adjustments”. Remove the following connectors.
1.
VC-188 board CN501 (12-pin)
After completing all adjustments, release the adjustment mode by
either of the following two methods.
1)
Remove the lithium battery. (In this case, data time and menu
setting by users are erased. Input these data again.)
2)
Return the data of the address : 00 on page : 6 to 00. If the
page : 2 data is changed, return the data to the original value.
3-1-3.
Adjustment connector (VC-188 Board CN102)
Some video section adjustment points are concentrated to the VC-
188 board CN102. Connect the measuring equipment via the tool
(Multi CPC: J-6082-311-A).
Pin No.
Signal Name
1
PB RF
2
REC 2
3
GND
4
EMPH IN
5
CAM Y IN
6
DEEMPH OUT
7
BPF ADJ
8
RF SWP
9
CAP FG
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