JVC KS-FX842R Service Manual page 33

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Pin No. Symbol
44 no use
45 E2PROM-DI
46 E2PROM-DO
47 E2PROM-CLK
48 OPEN
49,50 no use
51,52 no use
53 SD/ST
54 no use
55 MONO
56 to 60 no use
61 DETACH
62 AFCK
63 SEEK/STOP
64 IF CONT
65 FM/AM
66 PAL-CUE
67 PAL-DO
68 PAL-CLK
69 PAL-DI
70 TEL-MUTING
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71 L 13942296513 no use
72 VSS
73 no use
74 PS1
75 POWER
76 no use
77 MUTING
78 to 80 no use
81 VDD
82 no use
83 VOL-DA
84 VOL-CLK
85 to 89 no use
90 STAGE1
91 MOTOR
92 FF/REW
93 HEAD SEL(F/R) O Audio signal selector for head amp H:REV L:FWD
94 TEST
95 DOLBY
96 MS IN
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97 REEL
98 SUBMO-
.
99 SUBMO+
100 MODE
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I/O Function
- Not used
I I2C data input
O I2C data output
O I2C clock output
I DOOR OPEN SW
- Not used
- Not used
I Station detector or streo indicator input ; H means a station is there. L means the program is stereo.
- Not used
O Monaural selection output, H means monaural
- Not used
I Detach detect input ; H means detaching
O A check output
O Auto seek and stop selecting output ; H means seeking L means receiving.
O IF control output
O FM AM band selecting output ; H = FML= AM
O CUE output for PAL ICE
O Data output for PAL ICE
O Clock output for PAL ICE
I Data input from PAL ICE
I Telephone muting detection input ; Active level can be selected H or L in PSM
- Not used
GND
- Not used
I Power Save1 L= ACC off
O Power ON/OFF control output
- Not used
O Muting output L=muting on
- Not used
Micon power supply
- Not used
O Data output for e-vol ICE
O Clock output for e-vol ICE
- Not used
I Feature selection (refer to tabel1)
O Main motor control H:Motor drive
O Audio level control for MS H:Play mode L:FF/REW mode
For rewriting flash memory
O Dolby ON/OFF control H:Dolby on
I MS signal input L:no music
I Reel pulse signal input (Pulse signal)
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O Sub motor control. Eject direction
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O Sub motor control. Loading direction
I Mecha position detection signal
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8
Q Q
3 6 7 1 3 1 5
H=power on
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(No.49854)1-33
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