Sony SPP-888 Service Manual page 20

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Channel Setting:
During startup in machine test mode, make the following channel
settings by loading the terminal input data.
45
Pin No.
ROW5
Channel
(TP205)
CH1
L
CH2
L
CH3
L
CH4
L
CH5
L
CH6
L
CH7
L
CH8
L
CH9
L
CH10
L
CH11
L
CH12
L
CH13
L
CH14
L
CH15
L
CH16
H
CH17
H
CH18
H
CH19
H
CH20
H
CH21
H
CH22
H
CH23
H
CH24
H
CH25
H
TEST1
H
TEST2
H
TEST3
H
TEST4
H
Machine Test Mode Input / Output:
1. Input (Input ports for other than main tasks)
Pin Name
Pin No.
ROW5 (TP205)
45
COL4 (TP204)
52
COL3 (TP203)
51
COL2 (TP202)
50
COL1 (TP201)
49
TEST I/O (TP316)
36
2. Output (Output ports for other than main tasks)
Pin Name
Pin No.
TALK LED (TP314)
40
LCD/KEY LED
39
(D302 to 308)
<Display example of LCD>
E92/MX2
ch =1
VOLUME
NORM
20
52
51
50
COL4
COL3
COL2
(TP204)
(TP203)
(TP202)
L
L
L
L
L
H
L
L
H
L
H
L
L
H
L
L
H
H
L
H
H
H
L
L
H
L
L
H
L
H
H
L
H
H
H
L
H
H
L
H
H
H
H
H
H
L
L
L
L
L
L
L
L
H
L
L
H
L
H
L
L
H
L
L
H
H
L
H
H
H
L
L
H
L
L
H
L
H
H
L
H
H
H
L
H
H
L
Function
Setting the CH (channel)
Startup of the test mode.
Function
Various input/output monitor output
(default : RSSI (H) detection).
During test mode : All light lit However, does not
include measurment of consumption current.
49
TX frequency
COL1
(MHz)
(TP201)
H
48.760
L
48.840
H
48.860
L
48.920
H
49.020
L
49.080
H
49.100
L
49.160
H
49.200
L
49.240
H
49.280
L
49.360
H
49.400
L
49.460
H
49.500
L
49.670
H
49.845
L
49.860
H
49.770
L
49.875
H
49.830
L
49.890
H
49.930
L
49.990
H
49.970
L
48.800
H
48.970
L
49.910
H
49.950
Refer to channel setting
H : Start, L : No start
H Logic
No detection
No light
RX frequency
(MHz)
43.720
43.740
43.820
43.840
43.920
43.960
44.120
44.160
44.180
44.200
44.320
44.360
44.400
44.460
44.480
46.610
46.630
46.670
46.710
46.730
46.770
46.830
46.870
46.930
46.970
43.780
43.890
46.800
46.900
Logic
L Logic
Detection
Light

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