Panasonic CQC9800U - AUTO RADIO/CD DECK, Service Manual

Page: 11 / 92

Pin
No.
Port Description (I/
O)
(V)
FM AM CD
1
PANEL_OPENPANEL OPEN
detection
I 5.3 5.3 5.3
2
PANEL_CLOSE
PANEL CLOSE
detection I 5.3 5.3 0
3 FR/WP - O 5 5 5
4 BATT BATT detection I 5 4.9 5
5 ACC ACC detection I 5 4.9 5
6 SDA_DSP Electronic VOL
data I/O 4.4 4.7 4.7
7 SCLK_DSP Electronic VOL
clock O 4.5 4.7 4.7
8 FR/HOLD - - 4.9 4.9 5
9 Vss GND I 0 0 0
10 LMTR_FR(NC)No Connection - - - -
11 LMTR_S_L_MONO(NC) No Connection - - - -
12 LMTR_S_R_CENT(NC) No Connection - - - -
13 DSP_INT_OKPLL Clock
Output
O 0 0 0
14 DE_EMPH_I2S1(NC) No Connection - - - -
15 CD_RESET CD deck reset
output O 4.9 4.9 4.9
16 SUB_SI SUB_u-com
Data trans SO 0.7 0.7 0.7
17 NC No Connection - - - -
18 SUB_SO SUB_u-com
data recept SI 4.4 4.4 4.4
19 CD_SO CD_Data recept SI 0 0 1.7
20 UP_CLK FLASH_W CLK SCK 4.9 4.9 4.9
21 Vdd Power supply I 4.9 4.9 4.9
22 UP_SI FLASH_W SI S0 0 0 0
23 NC No Connection - - - -
24 CH_CLK Clock recept
from Changer
SCK 0
0 0
25 CONDENSORCapacitor for
power supply
- 3.2 3.2 3.2
26 CH_DATA Data recept
from Changer SI 0 0 0
27 CH_STB Changer
stororb signal
input INT 0 0 0
28 CD_IN DISC in detect I 4.9 5 0
29 DECK_CONTDECK power
supply control
output
O 4.9 4.9 4.9
11