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This document is a service manual for JVC colour televisions, specifically models AV-14FR10, AV-14F10, AV-1434TEE, AV-1434EE, AV-14FTT2, and AV-14FTG2.
The JVC colour televisions covered by this manual are designed for interactive on-screen control, offering a range of features for user convenience and picture optimization. They include a wide range voltage AC power input, supporting 110V to 240V for AV-14FTT2 and AV-14FTG2/-A models. The televisions are equipped with AUDIO/VIDEO INPUT and OUTPUT terminals, allowing for connectivity with external devices.
A MUTING button provides instant audio reduction to zero. The functional remote control unit enables comprehensive operation of the TV set, including channel selection, volume control, and power ON/OFF. The internal architecture utilizes I2C bus control with single-chip ICs for IF, V/C, DEF, VSM PRESET, PRESET, and TURBO TIMER functions.
An "AUTO PROGRAM" feature allows for automatic selection of TV stations and rearrangement of channels. For models AV-14FR10, AV-1434TEE, and AV-14FTT2, a built-in FASTEXT/WST system provides teletext capabilities. The televisions also incorporate an "ECO MODE" (ECONOMY, ECOLOGY) that automatically adjusts picture brightness and contrast based on ambient room light, aiming for optimal and eye-friendly viewing. Additional built-in features include an ON TIMER, RETURN+, and CHILD LOCK.
Dimensions (W×H×D) and Mass: All models share the same physical dimensions: 462mm × 340.5mm × 375mm, with a mass of 10kg.
TV RF System: Supports B/G, I, D/K, K1 standards.
Colour System:
Teletext System:
Picture Tube: Visible size: 34cm measured diagonally.
High Voltage: 22.5kV ± 1.5kV (at zero beam current).
Receiving Frequency:
Intermediate Frequency:
Colour Sub Carrier Frequency:
Power Input:
Power Consumption: 68W (Max) / 47W (Avg.)
Speaker: 5cm × 9cm, Oval type × 2 (2W monaural).
Aerial Input Terminal: 75Ω Unbalanced.
Input Terminals:
Output Terminals:
Headphone Jack: 3.5mm mini jack.
Remote Control Unit:
The televisions offer a user-friendly interface with both front panel controls and a remote control unit.
Front Panel:
Rear Panel:
Remote Control Unit (RM-C90 / RM-C364GY): Both remote control units provide similar functionalities, including:
The service manual provides detailed instructions for maintenance and adjustment.
Disassembly Procedure:
Checking the Main PW Board: Instructions for pulling out and erecting the Main PW Board vertically for inspection, with cautions against contact with other parts and ensuring proper CRT earth wire and connector connections before powering on.
Wire Clamping and Cable Tying: Emphasizes the importance of clamping wires and using new cable ties if existing ones are inadvertently removed.
Replacement of Memory ICs:
Replacement of IC301 (IF V/C DECODER):
Service Adjustment:
Basic Operation of Service Menu:
Replacement of Chip Components:
General
