60
KX-FLB802CX/KX-FLB812CX/KX-FLB802CXS/KX-FLB812CXS
6.16. HVPS (High Voltage Power Supply) SECTION
6.16.1. HVPS SPECIFICATION
As for the developing voltage, the DC voltage and AC voltage are overlapped and output from an output terminal.
There is one terminal for transcription output and + and - are switched to be output.
6.16.2. CHG-BIAS (Charge BIAS)/GRID/ UNIT
When IC604 turns on the transistor Q614, CHG REM becomes “L”, and Charge BIAS (200µA) is output from CHG OUTPUT.
GRID BIAS is generated by the current flowing in the GRID circuit via charge wire and GRID.
Charge (CHG) Grid Developing DC Developing AC Transfer (TRA) - Transfer (TRA) +
Output Characteristics Constant current Constant voltage Constant voltage Rectangular
Wave
Constant current
(Variable)
Constant voltage
Nominal Output Voltage 4.35KV 4.75±10V 230V±15V
(50~300V)
PWM20%
300V±15Vp-p
17.5KHz
100MΩ
(1400V)
800V±100V
Nominal Output Current 200±15µA 200µA 300MΩ -14.8µA±1µA
(0µA~25µA)
PWM 35%
1000MΩ
(1.25µA)
Load Range (19.4MΩ) 100MΩ~2000MΩ 100MΩ~2000MΩ 33.8MΩ~284MΩ 10MΩ~1000MΩ
Constant Current
Range
4.1~4.6KV 500V~4200V