1 Safety Precautions 1.1. General Guidelines 1.3. Leakage Current Hot Check (See Figure 1.) 1. IMPORTANT SAFETY NOTICE There are special components used in this equipment 1. Plug the AC cord directly into the AC outlet. Do not use which are important for safety. These parts are marked by an isolation transformer for this check.
2 Warning 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec- trostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip"...
2.3. How to Replace the Lithium Battery 2.3.1. Replacement Procedure 1. Remove the MAIN P.C.B.. (Refer to Disassembly Procedures.) 2. Unsolder the each soldering point of electric lead terminal for Lithium battery (Ref. No. “Z3001” at component side of MAIN P.C.B.) and remove the Lithium battery together with electric lead terminal.
3 Service Navigation 3.1. Introduction This service manual contains technical information, which allow service personnel’s to understand and service this model. Please place orders using the parts list and not the drawing reference numbers. If the circuit is changed or modified, the information will be followed by service manual to be controlled with original service manual. 3.2.
3.3. How to Define the Model Suffix (NTSC or PAL model) There are four kinds of HM-TA2. • a) HM-TA2P/PC • b) HM-TA2EB/EC/EF/EG/EP/GN • c) HM-TA2EE • d) HM-TA2GC/PU What is the difference is that the “INITIAL SETTING” data which is stored in Flash ROM mounted on Main P.C.B.. 3.3.1.
5 Service Fixture & Tools 5.1. When Replacing the Main P.C.B. After replacing the MAIN P.C.B. or IC121, be sure to achieve update the Firmware and adjustment. 1. The firmware together with version up procedure are available at "software download" on the "Support Information from NWBG/VDBG-AVC"...
9 Exploded View and Replacement Parts List 9.1. Replacement Parts List Safety Ref. Part No. Part Name & Pcs Remarks Description Safety Ref. Part No. Part Name & Pcs Remarks C1726 VU3033827814 C.CAPACITOR Description C1727 VU3033827814 C.CAPACITOR C1728 VU3034085500 C.CAPACITOR 2.2U VU6361540452 MAIN P.C.B.
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Safety Ref. Part No. Part Name & Pcs Remarks Safety Ref. Part No. Part Name & Pcs Remarks Description Description C9001 VU3033380309 C.CAPACITOR 0.1U R1007 VU3012249316 M.RESISTOR R1010 VU3012251210 M.RESISTOR C9002 VU3033380309 C.CAPACITOR 0.1U R1011 VU3012249316 M.RESISTOR R1012 VU3012251210 M.RESISTOR C9003 VU3032761010 C.CAPACITOR R1041...
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