Brother International HL-1660E Service Manual - Page 41
Paper Feed/Size-SW PCB Circuit
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Figure 3.7 Paper Feed/Size-SW PCB Circuit III - 9 B48K139-1 P5(ENGINE) 7 FE-MT A 9 FE-MT B 6 FE-MT C 8 FE-MT D 20 CA SOL 19 MP SOL 3 PF-PE PH2 ±0V 14 MP-PE PH5 ±0V 5 A REGIST PH1 ±0V 13 PREREG PH4 ±0V 2 DUPE PH3 ±0V 15 SIZE1 SIZE2 16 SIZE3 17 SIZE4 18 F R2 470 ±0V R14 470 ±0V R1 470 ±0V R13 470 ±0V R9 470 ±0V ±0V +5V E-1 +5V E-2 +5V E-3 +5V E-4 +5V E-5 P2(SIZE) 4 PSIZE1 3 PSIZE2 2 PSIZE3 1 PSIZE4 5 0V 11 HOLD 4 +24VB 10 +24VRET 12 +5V 1 0V HLD (* -05D) +24VB +24VRET +5V ±0V B +5V R8 R3 47K 47K C6 C3 471 471 #1 SLA7027M 6 17 INA INB OUTA OUTB 8 18 5 16 INAN OUTAN INBN OUTBN 1 11 2 TDA VSSA 7 13 TDB VSSB 12 9 10 GNDA GNDB 4 15 RSA RSB REFA REFB 3 14 C4 C5 222 222 P1(FEED MOTOR) +24VB +24VB 0V C2 103 + C1 100µ-35V +5V +24VRET 5 MT A 2 MT B 1 MT C 6 MT D 3 +24VB 4 +24VB R10 1K F B48K140-1 P1(SIZE) 4 PSIZE1 3 PSIZE2 PSIZE3 2 PSIZE4 1 5 0V R5 1-1W R4 2.2K R7 2.2K R6 1-1W 0V +24VRET +24VRET R12 82 R11 27 ±0V Q1 DTC114ES (* -02D) HLD C Q3 2SC5060 R16 4.7K +24V P3 (CA SOL) 1 CA-SOL 2 +24V Q2 2SC5060 ±0V +24V P4 (MP SOL) 1 MP-SOL 2 +24V D +24VRET R15 4.7K +24VRET SW1 SW2 SW3 SW4 ±0V