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Incredibly clear!!!! Well done, complete and wonderful. It could not better than this!!!!
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Thank You for fast delivery for the sheme.
Everything allright.
Thanks & best regards Franz
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again you did a very good job. It was fast too. Photocopy are really readable and clear
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Probably it never existed a 1081 official service manual from Commodore, it's look more like a NAPCEC service manual & diagrams compilation of the 1084 series and his variants, like the nap6523, 8cm505, 1084S, 1084P and obviously the 1081. It's more complete than other scans and the quality of the scans also are far superior. It has two circuit diagrams variants of the 1081, mono and stereo versions. It doesn't include a diagram for the Philips CM8500 or CM8501, they look like the 1081 but they are slightly different.
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Rapid, clear well done as all the scheme I downloaded from this site. Great job very functional and very useful
"#$%&'"(
/:1O"S8))`23Q8#a
+VCC
100nF
100nF
1000µF
15
+VCC
-VCC
16
+VCC power TDA9380 STV9380
VREG -VCC 100nF 8
Vref
Flyback detection
Flyback generator
5 CFLY+ CFLYBACK 100µF 6 CFLYBOOT
IN+ 13 1k� Input signal IN 12 EA out 14 10k� 1k� SGND 11 FEEDCAP 4.7nF 9 Pins 1,2,3,18,19,20 10 470pF 10k� 100nF FREQ -VCC 17 + _ Modulator Output drive
7 4 OUT 150�
Cboot 220nF 1mH 470nF 150� Deflect. Yoke* 200�
560pF -VCC power 1000µF Sense resistor 0.5�
-VCC * Deflection yoke characteristics: R = 5.5�, L = 7mH fvert = 50Hz
5
ELECTRICAL CHARACTERISTICS (refer to Figure 1 on page 3)
Tamb = 25°C unless otherwise specified, Vcc = ±12V, fvert=50Hz
Symbol +Vcc -Vcc �Vcc Vccstart Iq Iy I13, I12 VOS SVR Flythr Fly thf Pd Fsw Fsw - op Rfreq Parameter Positive supply range Negative supply range Maximum recommended difference between +Vcc and � Vcc Low Vcc detection Quiescent supply current Maximum recommended vertical yoke current Amplifier Input bias current Output Offset voltage Supply voltage rejection Flyback detection threshold (positive slope) Flyback detection threshold (negative slope) Test Conditions Min. +10 -18 Typ. Max. +18 -10 ±4 ±6.5 Input voltage = 0 14 ±1.25 -0.1 Note 1 Note 2 V(14) V(14) -50 82 1.5 0.5 1.1 120 100 7 140 10 160 200 14 +50 Units V V V V mA A
Figure 1. Test and Application Circuit
µA
mV dB V V W kHz kHz k�
Integrated circuit Note 3 Dissipated power Switching frequency R freq = 10k� Switching frequency operative range Frequency controller resistor range Pin 10
Note: 1 Note: 2 Note: 3
Input voltage = 0, measured after the filter (e.g. accross the 470 nF filter capacitor) Supply rejection of the positive or negative power supply. Vcc ripple =1Vpp, f=100Hz, measured on the sense resistor. Power dissipated in the circuit in the case of the application from Figure 1 and the current in the deflection yoke adjusted to 2.5App. The corresponding power dissipated in the vertical deflection yoke is 2.8W.
"#
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