JVC RC-BM5 Service Manual page 35

3. Pin function
Pin No. Symbol
1 RIPPLE
2 AM-RFI
3 FM-RFO
4 RFGND
5 FMOSC
6 AMOSC
7 V
CC1
8 TUNE
9 VCO
10 AFO
11 MPXI
12 LFI
13 MUTE
14 AFLO
15 AFRO
16 PILFIL
17 IFGND
18 FMDEM
19 AFC
(n)
20 AFC
(p)
21 FSI
22 V
CC2
23 V
DDD
24 MO/ST
25 XTAL
26 DGND
27 BUS-CLOCK
28 DATA
29 WRITE-ENABLE
30 P0
31 P1
32 AFC
33 FM-IFI2
34 V
STAB(B)
35 FM-IFO1
36 AM-IFI/O2
37 FM-IFI1
38 V
STAB(A)
39 FM-MIXER
40 AM-MIXER
41 AM-IFI1
42 RFGND
43 FM-RFI
44 AGC
I/O
I Ripple capacitor input
I AM-RF input
- Parallel tuned FM-RF circuit to ground
- RF ground and substrate
- Parallel tuned FM-oscillator circuit to ground
- Parallel tuned AM-oscillator circuit to ground
- Supply voltage
O Tuning current output
I Voltage controlled oscillator input
O AM/FM AF output (output impedance typical 5k )
I Stereo decoder input (input impedance typical 150k )
I Loop-filter input
I Mute input
O Left channel output (output impedance typical 4.3k )
O Right channel output (output impedance typical 4.3k )
I Pilot detector filter input
- Grond of IF,detector and MPX stage
I Ceramic discriminator input
O AFC negative output
O AFC positive output
- Field-strength indicator
- Supply voltage for tuning
- Digital supply voltage
O Mono/stereo and tunig indication output
I Crystal input
- Digital ground
I Bus-clock input
I/O Bus data input/output
I Bus write-enable input
O Programmable output port (P0)
O Programmable output port (P1)
I 450kHz LC-input circuit
I FM-IF input 2 (input impedanc typical 330 )
- Internal stabilized supply voltage (B)
O FM-IF output1 (output impedance typical 330 )
I/O Input/output to IF-Tank (IFT);output:current souce
I FM-IF input1 (input impedance typical 330 )
- Internal stabilized supply voltage (A)
O Ceramic filter output (output impedance typical 330 )
O Open-collector output to IFT
I IFT or ceramic filter input (input impedance typical 3k )
- FM-RF ground
I FM-RF aerial input (input impedance typical 40 )
I AGC capacitor input
Function
RC-BM5
1-35