Kenwood RXD-M55-H Service Manual page 14

RXD-M55-H/M55-N/M55-S/M55E-H/M55E-N/M55E-S
6-6 CD RF IC : AN8399SA-E1 (X29,IC21)
Pin No. Pin Name
1 PD
2 LD
3 VCC
4 RF
5 RF OUT
6 RF IN
7 LDRCTL
8 CAGC
9 ARF
10 CEA
11 3TOUT
12 CSBDO
13 BDO
14 COFTR
15 OFTR
16 NRFDET
17 GND
18 SLPSW
19 VREF
20 TEN
21 TEOUT
22 FEN
23 FEOUT
24 GCTL
25 FBAL
26 TBAL
27 E
28 F
29 D
30 B
31 C
32 A
6-7 PB/REC Equalizer System IC : HA12230NT (X28, IC1)
Pin No. Pin Name
1 VREF
2 GND
3 BINR
4 AINR
5 PBNFR
6 PBEQR
7 EQOR
8 TAIR
9 PBOOR
10 MAOUT
11 MAI
12 IREF
13 RECIR
14 RIP
15 RECOR
16 RECOL
17 VCC
18 RECIL
19 MUTE
14
CIRCUIT DESCRIPTION
I/O
I APC Amp input
O APC Amp output
- Power supply
I RF amp inverting input
O RF addition amp output
I AGC amp input
- LD reference voltage control
- AGC loop filter connection
O AGC output
- Capacitance connection for RF HPF-Amp
O 3T-ENV output
- Capacitance connection for RF dark side envelope detection
O BDO output
- Capacitance connection for RF bright side envelope detection
O OFTR output
O NRFDET output
- Ground
- Sleep mode control
O VREF output
I TE. Amp inverting input
O TE. Amp output
I FE. Amp inverting input
O FE. Amp output
O Gain & APC control
O F. BAL control
O T. BAL control
I Tracking signal input 1
I Tracking signal input 2
I Focus signal input 4
I Focus signal input 2
I Focus signal input 3
I Focus signal input 1
I/O
- Reference voltage.
- Ground pin.
I PB B deck right channel input.
I PB A deck right channel input.
- PB EQ. feed back.
O Equalizer right channel output (70u).
O Equalizer right channel output (120u).
I Tape right channel input.
O PB right channel output.
O MS amplifier output (unused).
I MS amplifier input (unused).
I Equalizer reference current input.
I Rec equalizer right channel input.
O NAB output.
O Rec equalizer right channel output.
O Rec equalizer left channel output.
- Power supply.
I Rec equalizer left channel input.
I Mode control input.
Pin Description
Pin Description