Hitachi 27MMV30B free download

File name 27MMV30B.pdf

Models 27MM20BA and 27MMV30B are in the same Solid State Color Television family. The difference between the 27MM20BA and the 27MMV30B is the DDC2B and instruction Book. Please refer to Model 27MM20B and 27MM20BA schematics, assembly, wiring, test, and troubleshooting information when servicing Model 27MMV30B. Refer to Service Manual PA No. 0092 issued in March 1998. Refer to Service Manual PA No. 0092 for the technical information regarding the "Description of Circuit" and "IC's and Transistors Functions" issued in March 1998. REPLACEMENT PARTS LIST This parts list only gives parts which are different from the Service Manual PA No. 0092. PRODUCT SAFETY NOTE: Components marked with aA have special characteristics important to safety. Before replacing any of these components, read carefully, the PRODUCT SAFETY NOTICE of this Service Manual. Do not degrade the safety of the receiver through improper servicing. For 27MMV30B (Same as 27MM20BA except below parts) SYMBOL NO. N201 B PART NO. QR26891 JK03655(H) DESCRIPTION Instruction Book English PA2 DDC2B P.W.B. Above parts list of 27MMV30B plus attached replacement parts list are parts which are different from the Service Manual PA No. 0092. SPECIFICATIONS AND PARTS ARE SUBJECTTO CHANGE FOR IMPROVEMENT SOLID STATE COLOR TELEVISION JULY 1998 HHEA-MANUFACTURING DIVISION PA2 SAFETY PRECAUTIONS NOTICE: Comply with all cautions and safety-related notes located on or inside the cabinet and on the chassis or picture tube. WARNING: Since the chassis of this receiver is connected to one side of the AC power supply during operation, whenever the receiver is plugged in, service should not be attempted by anyone unfamiliar with the precautions necessary when working on this type of receiver. The following precautions should be observed: 1. Do not install, remove, or handle the picture tube in any manner unless shatterproof goggles are worn. People not so equipped should be kept away from the picture tube while handling. 2. When service is required, an isolation transformer should be inserted between power line and the receiver before any service is performed on a "HOT" chassis receiver. When replacing a chassis in the receiver, all the protective devices must be put back in place, such as nonmetallic knobs, adjustment and barriers, compartment cover-shields, isolation resistors, capacitors, etc. When service is required, observe the original lead dress in the high voltage circuitry area. the manufacturer's replacement Always use components. Critical components as indicated on the circuit diagram should not be replaced by another manufacturer's Furthermore, where a short circuit has occurred, replace those components that indicate evidence of overheating. Before returning a serviced receiver to the customer, the service technician must thoroughly test the unit to be certain that it is completely safe to operate without danger of electrical shock, and be sure that no protective device built into the receive