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| VB |
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| IC2 |
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| COM | 9 |
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SPM2 A | 1 |
| 16 |
| PAM1 A |
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I1 |
| O7 |
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2 |
| 15 |
| PAM1 /A |
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I2 |
| O6 |
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SPM2 B | 3 |
| 14 |
| PAM1 B |
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I3 |
| O5 |
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4 |
| 13 |
| PAM1 /B |
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I4 |
| O4 |
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| 5 |
| 12 |
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| I5 |
| O3 |
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| 6 |
| 11 |
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| I6 |
| O2 |
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| 7 |
| 10 | VH |
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| I7 |
| O1 |
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| 8 |
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| VH |
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| GND |
| R20 |
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| D15 |
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| uLN2003A |
| 10KJ |
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| 1/4W |
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| R17 |
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| R21 |
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| 1SS133 | 24KJ |
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| Q2 |
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| R18 | Q1 | ||
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| 2.7KJ | 2SC1740S |
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| 2SC1740S | |
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| 2.7KJ | ||
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| R22 |
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| R19 |
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| 10KJ |
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| 10KJ |
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| Q4 |
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| D16 |
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| 2SC1740S |
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| VH |
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| R30 |
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| 1SS133 |
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| 2.7KJ |
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| R27 |
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| R31 |
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| 24KJ |
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| 10KJ |
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| R28 |
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| Q3 | ||
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| 2.7KJ | 2SC1740S | |
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| R29 |
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| 10KJ |
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6.2KJ |
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| F1 | VH |
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1/2Wx2 |
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| R25 | R23 | IC8 |
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| 125V 1.6A |
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R6 | R5 |
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| SLA4391 |
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| 250V T1.6A |
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| 2KJ |
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| 2KJ |
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| R3 |
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| 1 | VCC | 3 |
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| SIG1 | VCC | 10 |
| D20 |
| D18 |
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| 8.2KJ 1/2W |
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| R24 |
| 5 | OUT1 | 11 |
| RK14 |
| RK14 |
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| 2KJ |
| SIG2 | OUT2 | 9 |
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| C29 | |||
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| OUT3 | 4 |
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| R26 |
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| 10000pF | ||
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| OUT4 | 2 |
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| 2KJ |
| SIG3 |
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| D19 |
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| VDD | 6 |
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| D17 | ||
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| R4 |
| 12 |
| RK14 |
| RK14 | ||
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| VDD | 7 |
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| 8.2KJ 1/2W | SIG4 |
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| VD |
| VD |
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| R14 |
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| 10KJ |
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| IC7A |
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| R15 |
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| R2 |
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C27 |
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| 30KF |
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| 0.22J/1W |
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| 8 |
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22000pF |
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| 3 | R13 |
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| C26 |
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| 1 |
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| 2 | 10KJ |
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| 10000pF |
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| R16 |
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DDM_DIR | LM393F | 4 |
| 1.5KF |
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DDM_PWM |
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| C8 |
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| 10uF/35V |
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IC8 (SLA4391) internal diagram
R3 R4
1
A
5
R1 R2
C
310
VH
2 11
4 | M |
9 |
67
GND ![](/images/new-backgrounds/1125774/125774279xi7.webp)
12
B
8
D
12 – 21