Table Of Contents - Kenwood KRC-646D Service Manual

CONTENS
DISASSEMBLY FOR REPAIR .................- 3
BLOCK LEVEL DIAGRAM .............---24+% 6
CIRCUIT DESCRIPTION ...............0006. 7
Description of Components ................. 7
TUNER UNIT (X05-3182-70, -72) .......... 7
SYNTHESIZER UNIT (X14-2062-7X) ........ 7
ELECTRIC UNIT (X25-2832-7X) .. 2.2.20 ee 9
AND-GATE For CPU Key Matrix ............ 10
u-Com : uPD1708G (X14-2062-7X :1C1) ....... 10
FUNCTION OUTLINE ............0.005 10
TERMINAL DESCRIPTION. ...........2. 11
Key: matrix: 2s 5 ieee Se RS COE eels 14
KEY MATRIX CONFIGURATION ......... 14
KEY MATRIX DESCRIPTION ............ 15
CLASSIFICATION OF CHIP PARTS ............ 19
ADJUSTMENT .......... 0.0200 e wees 20
ADJUSTMENT .......... 0.002 ce eee eee 20
REGLAGE. eo 24-99 ois ectets, aoe Bae eo 22
ABGLEICH Hs oss: sig oe he eee Bos Seb St wee es 24
SYSTEM CONNECTIONS ................. 26
PC BOARD (COMPONENT SIDE VIEW) ......... 27
PC BOARD (FOIL SIDE VIEW) ............... 30
CIRCUIT DIAGRAM ..................000- 33
EXPLODED VIEW (MECHANISM) ............. 41
EXPLODED VIEW (UNIT) .................. 42
PARTS LIST vio .3 Geen Shee ee hs a Ronee 43
PACKING 92 Osten SAM waked wig danke eee 57