Pll Adjustment - Sony DVW-250 Maintenance Manual

5. Adjust the B/F, C/G, D/H channels in the same way.
Test point
B/Fch TP200 (C-1:B) TP202 (C-2:B)
C/Gch TP300 (D-1:B) TP302 (D-2:B)
D/Hch TP400 (F-1:B) TP402 (F-2:B)
6. Eject the tape.
7. S700-4 (C-1) /EQ-54 → OFF
Setting after adjustment
Reset menu to the former positions.
PAGE : <TEST><TTP><PATH>
ITEM : TEST SG → OFF
A B C
1
S700
2
3
4
DVW-250/250P
Adjustment point
1RV201 (B-1:B)
1RV301 (D-1:B)
1RV401 (E-1:B)
D E F G
EQ-54 Board A side

9-5-3. PLL Adjustment

Preparation
• Disconnect the harness from CN301 (A-1) and CN303
(D-1) connectors on the EQ-54 board.
Adjustment procedure
1. Insert a blank tape and put the unit into the REC mode.
2. A/Ech Adjustment
: Frequency counter
Equipment
: TP105 (A-3:B) /EQ-54
Test point
Adjustment point : 1RV103 (B-3:B) /EQ-54
: 33.08 ±0.02 MHz (for NTSC)
Specification
: 32.51 ±0.02 MHz (for PAL)
Specification
3. Adjust the B/F, C/G, D/H channels in the same way.
Test point
B/Fch TP205 (C-3:B)
C/Gch TP305 (D-3:B)
D/Hch TP405 (E-3:B)
4. Eject the tape.
5. Connect the harness to CN301 (A-1) and CN303 (D-1)
connectors on the EQ-54 board.
G F E
TP400 TP300
1
RV401
TP402 TP302
2
RV403
3
RV303
TP405
4
9-5. RF System Adjustment
Adjustment point
1RV203 (B-3:B)
1RV303 (D-3:B)
1RV403 (E-3:B)
D C B A
TP200 TP100 RV101
RV301 RV201
TP202 TP102
RV203
RV103
TP305 TP205 TP105
EQ-54 Board B side
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