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XR-1800/1803/1804
5-4. SCHEMATIC DIAGRAM MAIN Section (1/2) · See page 16 for Waveform.
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XR-1800/1803/1804
5-5. SCHEMATIC DIAGRAM MAIN Section (2/2) · See page 27 for IC Block Diagram.
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XR-1800/1803/1804
5-6. PRINTED WIRING BOARD PANEL Section
· Semiconductor Location
Ref. No. Location B-9 C-10 C-7 C-6 C-8 B-9 D4 D900 D901 D902 D903 IC900
5-7. SCHEMATIC DIAGRAM PANEL Section
· Waveform
2 IC900 #TM (OSC)
2.2 Vp-p
15 µs
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· IC Block Diagram MAIN Board IC450
R10dBOUT RCT2 RT1 RCT1 RT2 R10dBIN RSELO RT3
LC75372E
RIN
33 31 29 28 26 25 24 23
32 30
27
ROUT 34 RVREF RVREF + + 20 TEST + RVREF 19 VSS 18 NC RROUT 37 LATCH DECODER RVREF RVREF 38 VREF 39 LVREF 40 LVREF LROUT 41 + LVREF + + RVREF SHIFT REGISTER CONTROL 17 CL 16 DI 15 CE + RVREF 22 R2 21 R1 RVREF + RVREF
RFIN 35 RFOUT 36
LFOUT 42 LVREF LVREF 14 VDD LFIN 43 + + + 13 L1 12 L2 LVREF
LVREF LVREF LOUT 44 + LVREF
1 2 4 5 7
3
6
8 9
10 11
LT2
LT1
L10dBIN LSELO
LIN
L10dBOUT
LCT2
25
LCT1
LT3
L3 NC
R3 NC
+
+