Kenwood KR 7340 Service Manual

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TWO-FOUR RECEIVER

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CONTENTS

ERNAL VIEW ....................... 3, 4 ADJUSTMENT
> P CHASSIS VIEW ....................... 5 TUNER ......................... 60 ~ 62
BOTTOM CHASSIS VIEW ................... a SQ/RM ............................. 63
DISASSEMBLY .................. ....... 7 CO4 ........................... 64 ~ 68
PACKING .............................. 8 BIAS ............................ 68, G9
PARTS LIST PROTECTION LEVEL/vu METER LEVEL . 69, 70
TOTAL PARTS LIST KR-7340 .......... 9 ~11 DIAL CORD ............................ 70
TOTAL PARTS LIST KR-834o . . . ....... 12,13 TROUBLESHOOTING ................... 71,72
TOTAL PARTS LIST KR-934o .......... 14,15 PC BOARD
TUNER & PREAMP ASSEMBLY POWER SUPPLY XOOISSO-IO .............. 73
X90v1000~10,~61/X90-1010-10, 61 . . . . . . . ._ . . . Ta POWER SUPPLY xoovIzmIo .............. 74
TUNER S PREAMP ASSEMBLY TUNER ... . . . . .. .................... 75
xoo-Iozmo, -61 ....................... 16 MAIN AMP . .......................... 75
MAIN AMP ASSEMBLY x90403040 . . . . . I . 17 PREAMP . . . . . .. ...................... 77
MAIN AMP ASSEMBLY X90-1040-10 . . . . . . . 18 TONE AMP XII-Imam ................. 77
MAIN AMP ASSEMBLY xeo-Ioso-Io . .. ...... 19 TONE AMP XIHlEO-IO .................. 78
SUB UNIT ASSEMBLY X901060-10.61.... ...20 _- TONE AMP XII-117040 ................. 78
SUB UNIT ASSEMBLY x90-107o10, 451.. ..... 21 BTL . . . I. ........................... 79
POWER SUPPLY X00-1360-10 .............. 22 PROTECTION ......................... so
POWER SUPPLY X00-1370-10,-61 ........... 23 PUSHBUTTON ......................... 81
TUNER xoamsms, ~65 ............ 24 ~ 27 REPEATER ........................... 32
MAIN AMP xo7-1230-IO, 41, <12 ........... 23 (20-4 ................................ 83
PREAMP X08v1180-00 ................... 29 SO/RM .............................. 84
TONE AMP X11-1130-00 .................. 30 BLOCK DIAGRAM ........................ 85
TONE AMP XII-1160.10 .................. 31 BLOCK DIAGRAM ........................ 86
TONE AMP x11-II70-Io ................. 32 SEMICONDUCTOR SUBSTITUTION ............ 87
BTL x13-1550-10 ....................... 33 SEMICONDUCTOR LEADS .................. 88
PROTECTION x13-1560-Io ............... 34 SCHEMATIC DIAGRAM .
PUSHBUTTON SWITCH x13-I570-10 ......... 35 KR<7340 ............................. 89
REPEATER X13-1580-10 ,.36 KR-834D ............................. 90
CD-4 x15-II2O06 .................. 37 ~ 41 KR-9340 ............................. 91
SQ/RM X15-1130A00 .................. 42, 43 TUNER, CD-4, & MAIN AMP ............... 92
DISASSEMBLY I=OR ADJUSTMENT ........ 44 ~ 49 REVISED CIRCUIT ......... ............. 93
CIRCUIT DESCRIPTION SPECIFICATIONS
BTL ................................ 50 KR-734D ................ ~ ........... 94
PROTECTION ....... . ................. 51 V KRA8340 ................ . ............. 94
CD 4 ............................ 52 ~ 59 KR-934O ............................. 95

KR-9340 is a four channel receiver.

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DISASSEMBLY

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This illustration is KR-7340