Circuit Function - Sony DNW-A75 Maintenance Manual

2-7. Circuit Function

2-7. Circuit Function
System configuration No.
1
Digital process
2
3
Video process
4
5
Analog BETACAM
video PB process
6
7
8
Audio process
9
!/
RF process
!-
System/servo control
!=
![
!]
!\
!;
Mech. deck
driver/sensor
!'
!,
!.
@/
@-
@=
@[
@]
@\
@;
@'
@,
*1: The full name of each mounted board is as follows:
Model name VPR-47
DNW-A75 VPR-47
DNW-A75P VPR-47P
*2: Either the RM-82 or the RM-181 board is used.
2-8
Board name Circuit function
DPR-118 Digital data processor (Audio/Video processor)
SDI-41 4:2:2 component serial digital interface with Embedded audio
*1 VPR-47 Video signal processor (D-A, Reference clock generator, Composite encoder)
DEC-110 Analog composite decoder
*1
DM-89 RF demodulator for Analog Betacam PB
*1 TBC-24 TBC (A-D, Write clock generator)
*1
TBC-23A TBC (Sequence and Reference)
*1
AU-260 Analog Betacam audio (LAU) PB circuit
APR-40 Audio signal processor, AES/EBU interface
EQ-75 RF equalizer (REC current control, PB EQ, Analog BETACAM PB buffer, Inner
error correction)
SS-83 System control, Servo control, DT control
MS-58 Solenoids driver (Pinch, Brakes, Cleaning), Sensors input, Demagnetization head driver
*1 DR-315 Motors driver (Drum, Capstan, Reels, Threading, Reel shift, Cassette up/down)
TC-102 TC REC/PB circuit, TC/FULL erase OSC
DT-34D DT driver
SE-461 Connection board with Condensation sensor
PTC-54 Threading FG
CCM-15 Threading motor
CCM-15 Reel shift motor
PD-35 Pinch solenoid connection, Tape end sensor connection
TR-79 T tension sensor, Threading-end and Unthreading-end sensors
PTC-59 Cassette's holes sensor
*2
RM-82/181 T reel motor
SE-344 T reel FG
*2
RM-82/181 S reel motor
SE-344 S reel FG
PTC-71 Reel position sensors
TR-78 S tension sensor
DM-89 TBC-24
DM-89 TBC-24
DM-89P TBC-24P
TBC-23A AU-260 DR-315
TBC-23A AU-260 DR-315K
TBC-23AP AU-260P DR-315K
DNW-A75/A75P