Sony EVO-720P - Servo System Adjustment

[Alignment tape]
BNC connector
Input signal: 1 Vp-p, 75Q unbalanced,
negative SYNC
BNC connector
Output signal:! Vp-p, 75Q unbalanced,
negative SYC
Recorder audio input Pin jack
Input level: —10 dBs
(0 dBs=0,.775 Vrms)
Input impedance: 47 kQ or more
Player audio output Pin jack
Specified output: —10 dBs
Output impedance: 2.2 kQ or jess
Video input
Video output
Tape Content Use
Tracking 1, Recording area : PCM ~— video Drum linearity
(WR5-1C) 2. Recording content: CH2: 1MHz linearity adjustment signal adjustment
(CH1 : SMHz)
Video Frequency 1, Recording area: Video Frequency
Characteristics 2. Recording content: RF swecp 0 to 10MHz characteristics
(WR5-6C) 3, Maker : 1, 3,58, 5,5 and 7MHz adjustment
Operation Check | 1. Recording area: Vidco Operation check
2. Recording content :
SP mode WVideo track
(wrs-scsP) + Video signals . Color bars 4min
pad Monoscope 4min
(WRS5-4CL)
(Colour bars)
Burst signal
0.74 \
W Te
0.3V 0.3V
Horizontal SYNC signal
(10096)
+ Audio signals (AFM)
400Hz 60% modulation
Note : WIPCM area (WRS-SCSP only)
PCM area is not + Audio signals (PCM)
included in kHz — 4imin color bar section
WRACL 20Hz =. 20sec
400Hz 20sec } erative
14kHz 20sec
Input/output level and impedance} [Adjustment procedure]
Perform adjustment in the following order:
Electrical block adjustment
Servo system adjustment
Audio system
adjustment
Video system
adjustment
al picture system
adjustment
—312-