Kenwood KR-1060VR, Service Manual

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1060VR/1070VR/KR-V8090/KR-V9090
Indicator tube
(11-MT-110GK)
Indicator tube driver
(uPD16311GC-AB6)
RDS
Signal level
RDS clock
RDS data
Key matrix
PLL IC
(LC72131)
Selector analog
switch control IC
(NJU7311/7312/7313)
Electron volume IC
(TC9412P/9413P)
Electron tone
control IC
(TC9184P)
Video selector IC
(SN761200N)
DSP
(56004)
Selector encoder A
Selector encoder B
Volume encoder A
Volume encoder B
CH SPACE
Remote controller
reception
SL16 / XS8
Serial BUSY
Serial DATA
SD
STEREO
RESET
CE
PROTECT
LOUDNESS
MUTE
-20dB ATT
RELAY POWER
RELAY A
RELAY B
RELAY CS
RELAY TR
(X08) IC28
u-COM
CXP82840-120Q(K,P,M)
CXP82852-107Q(E,T,Q)
MUTE LED
STANDBY LED
(X08) IC40
(X14) ED1
(X14)
(X05) IC2
(X08) IC2,12 (X09) IC3,4
(X08) IC5,7,9
(X08) IC13
(X08) IC1
(X08) IC26
(X14) IC1
11 16
4
9
CIRCUIT DESCRIPTION
1. Microprocessor CXP82840-120Q/CXP82852-107Q(X08-, IC28)
1-1 Microprocessor periphery block diagram
No. Name I / O Description
1 NC O
2 NC O
3 NC – Connects to VDD
4 RDS CLK I RDS clock signal input
5 RDS DATA I RDS data signal input
6 VOL ENC A I Volume encoder A input
7 VOL ENC B I Volume encoder B input
8 REMOCON I Remote controller data input
9 CH SPACE I Tuner description switching input
10 NC –
11 NC –
12 SEL ENC A I Selector encoder A input
13 SEL ENC B I Selector encoder B input
14 PLL DO I PLL IF counting value input
15 PLL CE O LC72131 (PLL) strobe signal output
16 PLL CLK O LC72131 (PLL) clock signal output
17 PLL DATA O LC72131 (PLL) data signal output
1-2 Terminal explanation
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