Jvc KVV 8 Service Manual

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Jvc KVV 8 Service Manual

Extracted text from Jvc KVV 8 Service Manual (Ocr-read)


Page 1

Specificatios (KV-V8J) General -Power supply : DC12 V (11V-16V allowable)Negative ground -Dimensions : 259 mm x 94 mm x 270 mm (10-1/4"x 3-3/4"x 10-11/16") (width x height x depth) -Mass : 3.2 kg (7.1 lbs) -Allowable working temperature : 0 °C to +40 °C (32 °F to104 °F) -Allowable relative humidity : 35%to 80% -Allowable conservation temperature : -20 °C to +60 °C (-4 °F to 140 °F) Video -Playback system : VHS format,Hi-Fi 4-heads helical scan -Video signal : VHS NTSC standard Audio -Playback system : VHS stereo Hi-Fi audio -Audio track : 2 Hi-Fi audio channels and 1 normal audio channel -Remote control unit : A code (A code and B code are switchable automatically in the main unit.) Design and specifications subject to change without notice. Specificatios (KV-V8E) General -Power supply : DC12 V (11V-16V allowable)Negative ground -Dimensions : 259 mm x 94 mm x 270 mm (width x height x depth) -Mass : 3.2 kg -Allowable working temperature : 0 °C to +40 °C -Allowable relative humidity : 35%to 80% -Allowable conservation temperature : -20 °C to +60 °C Video -Playback system : VHS format,Hi-Fi 4-heads helical scan -Video signal : VHS PAL standard Audio -Playback system : VHS stereo Hi-Fi audio -Audio track : 2 Hi-Fi audio channels and 1 normal audio channel -Remote control unit : A code (A code and B code are switchable automatically in the main unit.) Design and specifications subject to change without notice. ! CAUTION Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system.

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1-1 [1] Top cover D1 2(S1a), (S1b), 2(S1c) [2] SW board assembly, D2 2(S2a), (WR2a), stay Front panel assembly 4(L2a), 3(L2b), CN3006(WR2b) [3] Cassette housingD3a,2(S3a), 2(L3a) assembly D3b [4] Drum assembly D4 CN1(WR4a), CN1(WR4b), (S4a), (S4b), (S4c) [5] Mechanism assembly D5 CN1(WR5a), CN3003(WR5b), CN3005(WR5c), 2(S5a), (S5b), 2(L5a) [6] Main board assembly D6 (S6a), (S6b) SECTION 1 DISASSEMBLY 1.3 Disassembly/assembly method 1.1 Disassembly flow chart This flowchart lists the disassembling steps for the cabinet parts and P.C. boards in order to gain access to item(s) to be serviced. When reassembling, perform the step(s) in reverse order. Bend, route and dress the flat cables as they were originally laid. 1.2 How to read the disassembly and assembly - Be careful not to damage the connector and wire etc. during connec- tion and disconnection. When connecting the wire to the connector, be careful with the wire direction. - When reattaching the Front panel assembly, make sure that the door opener a of the Cassette housing assembly is lowered in position prior to the reinstallation. - When installing the Cassette housing assembly, make sure that the Control cam and the Main deck alignment holes are aligned. if they are not, rotate the Loading motor belt to the front align the holes. - When installing the Cassette housing assembly, be careful not to dam- age the parts of the Main board and Mechanism assemblies. - When removing the Mechanism assembly only, unhook the two spacers connecting it with the Main board assembly with pliers from the back side of the Main board assembly first, and then remove the Mecha- nism assembly. - When reattaching the Mechanism assembly to the Main board as- sembly, take care not to damage the sensors on the Main board as- sembly. Top cover SW board assembly, Front panel assembly Cassette housing assembly Drum assembly Mechanism assembly Main board assembly [1] [2] [3] [4] [5] [6] Step/Loc No. Part Name Fig. No.Point Note Note: - The bracketed ( ) WR of the connector symbol are as- signed nos. in priority order and do not correspond to those on the spare parts list. (5) Adjustment information for installation (1) (2) (3) (4) (5) (1) Order of steps in Procedure When reassembling, perform the step(s) in the reverse order. These numbers are also used as the identification (location) No. of parts Figures. (2) Part name to be removed or installed. (3) Fig. No. showing procedure or part location. (4) Identification of part to be removed, unhooked, unlocked, released, unplugged, unclamped or unsoldered. P= Spring, W= Washer, S= Screw, L= Locking tab, SD= Solder, CN**(WR**)= Remove the wire (WR**) from the connector (CN**). ------------------- [1] Top cover D1 4(S1a),(S1b),3(L1a), 2(SD1a), (P1a), CN1(WR1a), Bracket 2(S1c) Step/Loc No. Part Name Fig. No.Point Note