Circuit Adjustments; Preparation - Sony HR Trinitron BKM-41HD Installation Manual

As BKM-41HD and BKM-42HD are optional boards of the HDM series (HDM-14E1U/14E5U/20E1U), they cannot be
operated alone. To measure and adjust them, attach to the HDM series monitor. Use an HDM series monitor which satisfies the
specifications.
The following describes the electrical adjustments required for the repair and maintenance of the BKM-41HD and BKM-
42HD.
BHD board (Analog YPBPR adjustment)
BHD board (HD SDI adjustment)

3-1. Preparation

1. Equipment Used
Name
Oscilloscope
HD SDI signal generator
High vision signal generator
Monitor
2. Tools
Name
Extension board/cable kit (Z board)
75Ω terminater
3. Connections
• For analog component signal
Y/P //P
B
G/B/R 100% color bar
High vision
signal generator
BKM-10R
HDM-20E1U
SECTION 3

CIRCUIT ADJUSTMENTS

Main Specifications
Frequency : DC to 150 MHz
Above 2 phenomena (ADD mode)
With 1080 standard (SMPTE274M standard)
BTA S-001A standard
Parts Name
A-1394-806-A
Y/G terminal;
P /B terminal
100% color bar
B
R
P /R terminal
R
75Ω
terminater x 3
BKM-41HD or
BKM-42HD
Extension board
(Z board)
• For HD SDI signal
100% color bar
HD SDI
signal generator
BKM-10R
HDM-20E1U
Equipment Name
TEKTRONIX2445A or equivalent
Shibasoku : TG15B6 or equivalent
Leader Denshi : 440 or equivalent
Sony HDM-20E1U or equivalent
Remarks
HD SDI IN
terminal
BKM-41HD or
BKM-42HD
Extension board
(Z board)
3-1