The ervice manual for my 1982 Kenwood KR-1000 receiver is great! Full detail on all circuits with part number detail. I will definately be ordering more manuals for my other vintage equipment! Order was fulfilled quickly! Very efficient ordering process! Thnaks for your help! Great site!
Everything in the manual was excellent except for a couple of pictures of specific areas in the unit that were a little dark. Owners Manuals re-sent the pdf file & the problem was corrected. Excellent product! George
Text excerpt from page 3 (click to view)
2-2. SCHEMATIC DIAGRAM
TMR-IF130/IF230R
r IC
BLOCK DIAGRAM
ADJ ON/OFF
IC11 TA2061AF-EL
L-CH OUT AGC AUTO AGC T/C (R) F0 ADJ (L)
16
15 VREF
14
13 LEVEL DET.
12
11
10
9
AGC
PRE EMPHASIS Lout = L + K � (L�R)
VCO
BUFFER
IN
Note: � All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. � All resistors are in � and 1/4 W or less unless otherwise specified. � % : indicates tolerance. � H : adjustment for repair.
Rout = R � K � (L�R)
� Power voltage is dc 9 V and fed with regulated dc power supply from external power voltage jack (J4). � Voltages are dc with respect to ground under no-signal conditions. � Voltages are taken with a VOM (Input impedance 10 M�). Voltage variations may be noted due to normal production tolerances. � Signal path. F : AUDIO J : RF