JVC AV-28BD5EKI - Service Adjustments; Before Adjustment and Maintenance; Equipment for Adjustment; +B Voltage Check Procedure

No.51709
A
V-28BD5EKI AV-28BD5EP AV-28BD5EE
A
V-28BD5EKIS AV-28BD5EPS AV-28BD5EES
1-9
SERVICE ADJUSTMENTS
BEFORE ADJUSTMENT AND MAINTENANCE
1. Don't short any two soldering points or connect any component while TV set is power on.
2. Withdraw power plug before maintenance.
3. In order to ensure safety all components replaced should be identical. (For further details, refer to the component name and component No.
in PARTS LIST.)
4. Must be warm up the set for 30 minutes or more and degauss CRT thoroughly with demagnetizer coil before adjustment.
EQUIPMENT FOR ADJUSTMENT
1. Pattern Generator
2. Digital volt meter
3. Oscilloscope
4. Demagnetizer
5.
Service
remote controller (For repair service)
6. Remote controller (RM-C71 or RM-C72)
ADJUSTMENTS PROCEDURES
+B VOLTAGE CHECK
1. Receive a standard colour bar signal.
2. Connect digital volt meter between + of B1 Line circuit and GND.
3. Confirm that voltage is DC 142V
r
2.0V.
(RM-C71)
Service Remote ControllerRemote Controller
(RM-C72)
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17/3/2013
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