Pioneer KEH-P2030 Service Manual page 37

5
- Tuner Unit(CZW5534)
No. Symbol
1 AM ANT IN
2 FM ANT IN
3 GND
4 AM Lo/Dx
5 FM Lo/Dx
6 FM/AM VCC
7 FM VCC
8 GND
9 GND
10 N.C
11 FM/AM Vt
12 FM/AM OSC BUFF
13 L OUT
14 R OUT
15 FM/AM SD OUT
FM ST IND/MONO
16 FM/AM VSM
17 FM/AM IF COUNT OUT
18 N.C
5
6
I/O Explain
I AM antenna input
I FM antenna input
RF ground
I AM local /distance
I FM local / distance
FM / AM power supply FM/AM section power supply. DC +8.2V
FM power supply
FE ground
FM IF/ AM ground
I Tuning voltage
O OSC buffer output
O L channel output
O R channel output
O Station detector
Stereo indicator out
O Signal meter output
I/O IF count output
SD / IF request in
KEH-P2030/XM/UC
6
7
Hight impedance. Connect to the antenna through
an antenna circuit of receiver set.
75 . Surge absober is necessary.
Ground for the antenna section.
Lo: 5V / Dx: open
Lo: ground / Dx: open
FM RF and band switch section power supply. DC +8.2V
Ground for the front end section.
Ground for the FM IF/AM section.
Not used.
Connect to the PLL circuit.
Connect to the PLL circuit.
FM stereo L-ch signal output or AM audio output.
FM stereo R-ch signal output or AM audio output.
High when signals are received. To be pulled up +5V at 100k
ON when 16pin SD/IF request normal 0V(seek stop).
Received FM/AM signal level (strength) output.
ON when signals are received at seeking.
Not used.
7
8
A
B
C
D
E
F
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