Panasonic SA-AK220E, Service Manual

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Pin No. Mark I/O Function
62 MDATA I Micro controller command
data signal input
63 MLD I Micro controller command
load signal input
Low: Load
64 BLKCK O Subcode block clock signal
(f=75 Hz in normal-speed
playback mode)
65 PWMSEL I PWM output mode selection
input Low: Direct High: 3-
state
66 SMCK O 4.2336 MHz/ 8.4672 MHz
clock signal output
67 SBCK I Clock input for subcode serial
output
68 STAT O Status signal output
69 NRST I Reset input Low: Reset
70 SPPOL O Spindle motor drive signal
output (polarity output)
71 PMCK O 88.2-kHz clock signal output
72 DQSY O Pack signal output for CD-
TEXT data
73 TXTD O CD-TEXT data signal output
74 TXTCK O External clock signal input for
CD-TEXT register
75 NTEST I Test input pin High: Normal
76 OUT X2 O Crystal oscillator circuit output
pin (f=16.9355 MHz, 33.8688
MHZ)
77 IN X1 I Crystal oscillator circuit output
pin (f=16.9355 MHz, 33.8688
MHZ)
78 DVSS1 I Ground for digital circuits
79 DVDD1 I Power supply for digital
circuits
80 MON O Monitor for evaluation
21.3. IC703 (AN8739SBTE2) Focus
Coil/ Tracking Coil/ Traverse
Motor/ Spindle Motor Driver
Pin No. Mark I/O Function
1 /RST O RESET output terminal
2 NC - N.C.
3 IN2 I Motor drive (2) input
4 PC2 I Turntable motor drive signal (“L”
:ON)
5 NC - N.C.
6 IN1 I Motor driver (1) input
7 PVCC1 I Power supoply (1) for driver
8 PGND1 - Ground connection (1) for driver
9 NC - N.C.
10 D1- O Motor driver (1) reverse-action
output
11 D1+ O Motor driver (1) forward-action
output
12 D2- O Motor driver (2) reserse-action
output
13 D2+ O Motor driver (2) forward-action
output
14 D3- O Motor driver (3) reverse-action
output
15 D3+ O Crystal oscillating circuit input (f =
16.9344MHz)
16 D4- O Motor driver (4) reverse-action
output
17 D4+ O Motor driver (4) forward-action
output
18 NC - N.C.
19 PGND2 - Ground connection (2) for driver
Pin No. Mark I/O Function
20 PVCC2 - Power supply (2) for driver
21 VCC - Power supply terminal
22 VREF - Reference voltage input
23 IN4 I Motor driver (4) input
24 IN3 I Motor driver (3) input
25 RSTIN I Reset terminal
26 NC - N.C.
21.4. IC305 (C2CBJF000017) System
Microprocessor
Pin No. Mark I/O Function
1 LM_L O Level meter left (for AK320)
/SPEANA Input (for AK520)
NC (for AK220)
2 LM_R O Level meter right (for AK320)/
NC (for AK520/220)
3 NC - No connection
4 RDS_DAT I RDS data input (for AK320)/
NC for AK520/220)
5 RDS_CLK I RDS clock input (for AK320)
NC (for AK520/220)
6 MBP1 O Microcomputer beat proof output
1 (CONTROL)
7 MBP2 O Micro computer beat proof output
2 (CONTROL)
8 BYTE - External data bus width select
input (Connect to ground)
9 CNVSS/EFP_CN
VSS - Flash mode terminal (Connect to
ground)
10 XC_IN - 32.768 kHz sub clock
11 XC_OUT - 32.768 kHz sub clock
12 /RESET/EFP_RE
SET I Reset input (ACTIVE L)
13 X_OUT O 10 MHz main clock
14 Vss - Ground (0V)
15 XIN - 10 MHz main clock
16 Vcc - Power supply (+5V)
17 /NMI - Connect to Vcc (+5V)
18 RMT I Remote control input
19 BLKCK I CD block clock input (Inverted)
20 SYNC I AC failure detect input
21 ST/DO I Tuner IF data/ stereo input
22 SD I Tuner signal detect input
23 PLLCK O Tuner PLL clock output
24 PLLDA O Tuner PLL data output
25 PLLCE O Tuner PLL Chip Enable
26 ASP_DAT O ASP data
27 ASP_CLK O ASP clock
28 NC - No connection
29 SW_LV1 - Sub Woofer Level 1 (AK520 only)/
No connection (AK320/220)
30 SW_LV2 - Sub Woofer Level 2 (AK520 only)/
No connection (AK320/220)
31 NC - No connection
32 NC - No connection
33 NC - No connection
34 NC - No connection
35 NC - No connection
36 NC - No connection
37 NC - No connection
38 NC - No connection
39 MUTE_H O HIC mute
40 MUTE_A O Audio mute
41 EE_CS/EFP_/EP
M O EEPROM chip select
42 EE_CLK O EEPROM clock
43 EE_DAT I/O EEPROM data
44 NC - No connection
81
SA-AK220E / SA-AK220EB