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sorry for my english...the service given by O.M.com is perfect for content and codition...!!!
thank's a lot!!!
best greetings
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This manual is all I need to check and repair my equipment. Thank you....
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This manual is all I need to check and repair my equipment. Thank you....
;
This manual is all I need to check and repair my equipment. Thank you....
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this manual make me repair my vintage radio with easily.
Thank you for your best service
sukpra
VL-H860U VL-H880U
Q2903 with FET always is "OFF" at DC input.
Q2901
NON REG 7.2V REG circuit
Q2903
SYS 3.3V
DC JACK input
Voltage detective circuit
VDC<11V
ADP-DET
Vcc DC input lived DC input "ON"
with JACK : OPEN "OFF" detection with out JACK : GND Short circuit
Battery voltage BATT.-DET detection
7-7. MAIN BATTERY CIRCUIT SECTION BLOCK DIAGRAM
14
VBATT=0 Charging off Vcc Lithium ion battery Current Voltage circuit section section LED_R Completion : Green light up CHG SW When the battery is installed , its turned "ON". RESET CHARGE-ON_L VCR-H Charge control IC System microcomputer LED_G
Green LED Red Current control detective
Charging : Red light up
VL-H870U VL-H875U VL-H890U
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