Sony SPP-69, Service Manual

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Channel Setting:
During startup in machine test mode, make the following channel
settings by loading the terminal input data.
34 33 32 31 29
TX frequency RX frequency
ROW5 ROW4 ROW3 ROW2 ROW1
(MHz) (MHz)
(TP13) (TP14) (TP15) (TP16) (TP17)
CH1 H L L L L 48.760 43.720
CH2 H L L L H 48.840 43.740
CH3 H L L H L 48.860 43.820
CH4 H L L H H 48.920 43.840
CH5 H L H L L 49.020 43.920
CH6 H L H L H 49.080 43.960
CH7 H L H H L 49.100 44.120
CH8 H L H H H 49.160 44.160
CH9 H H L L L 49.200 44.180
CH10 H H L L H 49.240 44.200
CH11 H H L H L 49.280 44.320
CH12 H H L H H 49.360 44.360
CH13 H H H L L 49.400 44.400
CH14 H H H L H 49.460 44.460
CH15 H H H H L 49.500 44.480
CH16 L L H H L 49.670 46.610
CH17 L L H H H 49.845 46.630
CH18 L H L L L 49.860 46.670
CH19 L H L L H 49.770 46.710
CH20 L H L H L 49.875 46.730
CH21 L H L H H 49.830 46.770
CH22 L H H L L 49.890 46.830
CH23 L H H L H 49.930 46.870
CH24 L H H H L 49.990 46.930
CH25 L H H H H 49.970 46.970
TEST1 L L L H L 48.800 43.780
TEST2 L L L H H 48.970 43.890
TEST3 L L H L L 49.910 46.800
TEST4 L L H L H 49.950 46.900
Machine Test Mode Input / Output:
1. Input (Input ports for other than main tasks)
Pin Name Pin No. Function Logic
ROW1 (TP17) 29
ROW2 (TP16) 31
ROW3 (TP15) 32 Setting the CH (channel) Refer to channel setting
ROW4 (TP14) 33
ROW5 (TP13) 34
TEST CH (TP33) 1 Control terminal for setting the CH (channel) H : OFF, L : ON
TEST SW (TP43) 40 Start up of the test mode H : Start, L : Not start
TEST ACK (TP44) 44
During the test mode, causes start of intermittent
H : Intermittent start
operation with external input.
2. Output (Output ports for other than main tasks)
Pin Name Pin No. Function H Logic L Logic
TALK LED (TP35) 48
Various input/output monitor output
No detection Detection
(default : RSSI (H) detection).
KEY LED (TP55) 2
During test mode : All light lit. However, does
No light Light
not include measurment of consumption current.
Pin No.
Channel