Sony DNW-A100 Maintenance Manual page 137

1. Check the Initial Data
1. To enter the maintenance mode, press S1101(G-1) on
the SS-63 board.
2. Enter A37 : TBC VR, check that the data of "SQ C
RZ" is the following data value.
(If not, set it to above data.)
NTSC model: 6F, PAL model: 6E
3. To perform the tape operation, press the SET button
once.
2. Adjustment
1. Set RV502/TBC-24(A-5) to the specified position as
shown figure below.
2. Set the component waveform monitor to BOWTIE
mode.
3. Start the playback of alignment tape from the top of
PB portion in PLAY mode.
PB portion: 50% bowtie signal (17:00 to 19:00) of
CR5-1B (NTSC) / CR5-1B PS (PAL)
4. Adjust difference of deviations between each center
marker and bowtie dip points of CH-1/CH-2 (Y/B-Y)
and CH-1/CH-3 (Y/R-Y).
1RV503/TBC-24(A-5)
Adj. point:
Specification: A _ B = 0 ± 10 ns
(Refer to figure at step 5.)
A B C
TP201 E200
RV501
TP203
RV200
LOT No. S No.
A No.
RV201
RV500
RV202
TP202
E501
TP500
TP601
RV503
TP602
RV502
TP604
TP606
TP603
TBC-24 Board (Side A) (Suffix-11 and -12)
DNW-A100/A50/A45
DNW-A100P/A50P/A45P
D E F G
TBC-24
RV300
RV101
TP101 TP103
RV102
E100
TP102
RV400 RV402
TP300
TP401
TP400
E302
RV303
TP403
TP404
TP402
TP301
TP406
RV404
5. Adjust the deviations A and B between each center
marker and bowtie dip point of CH-1/CH-2 (Y/B-Y)
and CH-1/CH-3 (Y/R-Y).
Field 1: 1RV500/TBC-24(B-1)
Adj. points:
Field 2: 1RV504/TBC-24(C-1)
Specifications: A = 0 ± 10 ns, B = 0 ± 10 ns
If the specification is not satisfied by adjusting RV500,
perform step (1) through (6).
n
As the TBC-24 board of the board number suffixes 11
and 12 is without RV504, adjust RV500 only.
CH-1/CH-2
A
If the specification in step 5 is not satisfied only, perform
following steps (1) through (6)
(1) Set RV500/TBC-24(B-1) to the mechanical center.
(2) Restart the playback of alignment tape from the top of
PB portion in PLAY mode.
PB portion: The same as step 3
(3) To operate the maintenance mode, press the MENU
button once.
(4) Change the data value of item "SQ C RZ" within +2
or _2 so that the bowtie dip points move closer to
center markers.
(5) To perform the tape operation, press the SET button
once.
(6) Perform step 5 again.
A B
RV501
RV201
TP203
1
A No.
RV500
2
3
E501
TP500
TP601
4
RV503
5
TP602
RV502
TP604
TBC-24 Board (Side A) (Suffix-13 and Higher)
3-8. Analog Betacam PB System Alignment
3-8-24. TBC Y/C Delay Rough Adjustment
Center markers
CH-1/CH-3
B
C D E F
TBC-24
TP201
RV300 E200
RV101
TP101
LOT No. S No.
RV504
E100
RV400 RV402
TP300
TP401
E302
RV303
TP606
TP404
TP402
G
TP103
1
2
3
4
5
TP403
3-101