JVC DR-E7BK Service Manual

DR-E7BK
DR-E7LBK
JVC
ERVICE MANUAL
DR-E7BK
"MODEL No. DR-E7LBK
Contents
Page Page
Safety Precautions -+++ses cece cece e eet ee cece eee e cee eneeeeeis 1-2 Mat EENANGE: leu eck a.000e asda acede le dlacacs sealeaie. sible dco ave Sedo be d a WTe ase 1-20
Instruction Book . FM/MW/LW Tuner Alignment Procedures -++:+-+++eeertereteteees 1-21
Block Diagram . Adjustment of the Cassette Deck Section ----- Seek Baie sola dress 1-22
Puner SECULOIE Aci Mock ec eere eo bao gtceieerae di dbe we leg beset Mooe 1-3
Cassette Amplifier Section «+++ ese ete eee e rere eee e teens 1-4 Servicing the Audio P.C.Board ---++sseeseeee ee reece eerie 1-25
Audio Section ccc r cece cere t tee ete eee eee e eee e nese etees 1-5 .
Troubleshooting --+ecece cee e cece teen e nen e rene nett nee etneees 1-28
"Technical Explanations :
Computer-controlled S.E.A. cree tree terete tence eee 1-6 Parts List ss+rreee cece eee eee teen eens Separate-volume Insertion
Mechanism Control Microcomputer «+--+ ++++eeeee sere eee eeeee 1-9 .
Cam Switch oo eee cee eet ee eee eee cee eee ener rece e eens 1-10 Schematic Diagrams
System Control Microcomputer ++++resss eter cree erent nes 1-il (1) FM/AM Tuner Section --+rseeree eee eee eee cere ees Insertion
COMPU-LINK terminal data transmission method --------+-+-+> 1-12 (2) FM/MW/LW Tuner Section ----+-++ercee serene ceeeeees Insertion
Table of COMPU-LINK code --+--+++erreser etter reese eres 1-13 (3)SEA & Source Selector Section «-+-++--+eecrrteree Insertion
PLL Synthesizer Control Microcomputer -++++++++ees seer ee 1-14 (4)Power Supply Section --+++++sssereree eee etree Insertion
(5)Cassette & Main Amplifier Section -------+-++s++:- Insertion
Internal Block Diagrams of Major ICs --++++++ttee creer eee eee 1-15
Connection Diagram +-+++ eee e eee eee terete teeter eee tees 1-31
Disassembly Procedures +++ cece eee eter eect ete e reece 1-19
No. 2961
Jan. 1987