THE SERVICE MANUAL SK3133-PPQ VERSION: 180924_V1 TABLE OF CONTENTS 3 4 5-8 CIRCUIT BLOCK DIAGRAM THE DESCRIPTION THE PCB LAYOUTS Top & Bottom Sides THE SILK SCREENS Top & Bottom Sides 9 10 2 THE SILK SCREENS TOP & BOTTOM SIDES CIRCUIT A B C D 4 1 D 4 0 0 4 N 1 0 3 0 E X R 1 F 1 L H u 0 0 1 1 T F u 0 1 V 0 5 1 C F u 0 0 0 1 1 C E V 0 5 M D 5 4 1 Z 3 2 C F u 0 1 V 0 5 1 2 R K 1 K 8 6
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. 1 E L D E R T I B H N I I A R O K 5 J M R A L A T C A Y E K OP2 OP1 KEY_ACT C VSS X1 X0 EM_IN 125KHz WIE_D1 WIE_D0 WIE_BUZ 34 35 36 4 48 47 46 39 31 16 17 18 0 91 1 1 2 1 7 2 6 2 3 2 4 4 9 1 3 1 0 3 3 3 4 Y E K 5 Y E K 6 Y E K 2 C N 3 C N 1 P O
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2 3 2 S R D E L _ 1 P O D E L _ N A M I 3 P O P O _ M R A L A P O _ L L E B _ R D KEY3 KEY2 KEY1 KEY0 VCC RS232_IN BUZ INHIBIT_LED KEY_TYPE ENABLE_94 BELL_SEL TDR_SENSE I 8 7 6 5 3 28 32 21 2 25 1 42 I N _ L L E B _ R D P W _ P E E K L C _ P E E A D S _ P E E T S R
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K S 10 3 A B C D BLOCK DIAGRAM THE PCB LAYOUTS TOP & BOTTOM SIDES
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4 Top side circuit diagram Bottom side circuit diagram 9 T18 T19 T20 INT. LOCK TAMPER TAMPER Interlock control N.O. input, connect to Output 1 Inhibit of second keypad if needed so that if one keypad is used to open door Output 1, the other is temporarily disabled. Tamper switch output N.C. contact , max 50mA@24VDC, Connect to the N.C. 24 hour protecon zone of an alarm if needed. THE DESCRIPTION Description of the Block Diagram SK3133-PPQ The key functions of the keypad are prepared with the software that programmed in the MCU. It provides the following functions. 1) A keyboard for code entry. 2) 125Khz Proximity Card detection. 3) 3 groups of user codes for controlling output 1, 2 & 3 4) Amber (Middle) LED driver for the Main/Status. 5) Green/Red (Right) LED driver for Output 1 & Output 2. 6) Red (Left) LED driver for Inhibit. 7) The output port to give Keypad Active or Alarm function. 8) N.C. Tamper closed contact is allowed to connect. 9) A Normally Closed (N.C.) door sensing point with the help for monitors the open or close status of 10) Inter-lock output which gives signal to disable the partner keypad in an inter-lock system. 11) Output 1 Inhibit Control Input which mainly for the cross wire connection with the Inter-lock O/P point of partner keypad in an inter-lock system. 12) Duress Output used for trigger an alarm zone of a security system or turn on a buzzer to notify the door. a guard. 13) A buzzer driver to provide pacific tones. MCU - Fujitsu MB95F698K The operating voltage 5V Built-in low voltage detection reset circuit CMOS I/O ports Lead-Free Packaging The low-voltage detection reset circuit generates a reset signal if the power supply voltage falls below the low-voltage detection voltage. E2PROM AT24C256 It is a memory device stores all the programming data from MCU. Up to 1200 users (codes/cards) storage. 125 KHZ CARD RECEIVERS Referring figure 2 block diagram, MCU pin 125KHZ continuously generate a 125 kHz square wave. The antenna module takes a 125 kHz square wave input, buffers it, using two inverting gates(U4A,U4B) and push pull amplifier(Q16~Q19), forming the carrier signal, and fed into an antenna that transmits the carrier continuously toward any RFID tag(ANT) position above it. The part of the filtering module's main purpose (U4C~U4F) is to filter out the carrier signal and any noise that was picked up by the antenna. The encoded signal is picked up by the reader's antenna, filtered, and processed on the embedded microcontroller(pin EM_IN) to extract the tag's unique identity. At this point the identity can be matched against the records stored on the reader. It is compatible with ID cards of 64 bit read-only EM4100, TK4100, and EM4102 series. This module outputs original card information (Manchester code) and ascii codes. Code format: Manufacturers code + ID card number + parity bits. 8 5 Terminals No. Connecon Terminals Terminal Name Descripon T10 Output 3 Relay N.C. T11 T12 T13 T14 T15 T16 Output 3 Relay COM Output 3 Relay N.O. K OR A O/P
(selectable by Jumper) DU OUT GND DOOR SENS T17 O/P 1 INHIB. Ouput 3, N.C./COM/N.O. Max. 1A@24VDC K (Keypad Acve Output) NPN Transistor ground output , max 100mA@24VDC A (Alarm Output) NPN Transistor ground output , max 100mA@24VDC Duress Output NPN Transistor ground output, max. 100mA@24VDC. Triggers a silent alarm or other device when the user enters a duress code. Common ground output Door Sensor Connect to an oponal N.C. sensor such as a magnec contact to monitor if the door Output 1 is open or closed. Connect to ground if not used. Output 1 inhibit N.O. input, connected to interlock control of second keypad if needed so that if one keypad is used to open a door Output 1 , the other is temporarily disabled. POWER SUPPLY SWITCHING POWER SUPPLY The XL1509 is a 150 KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 2A load with high efficiency, low ripple and excellent line and load regulation. Referring to schematic diagram figure 1, input voltage range from DC12V to DC24V step down to DC9.5V , then output to RELAY unit and 78M05 regulator. 5V VOLTAGE REGULATOR 78M05 provide a stable voltage (DC5V) to MCU unit. BACK-LIT JUMPER K OR A JUMPER CONNECTION TERMINALS Terminals No. T1 T2 T3 T4 T5 T6 T7 T8 T9 Terminal Name 12-24V AC/DC GND Output 1 N.C. Output 1 COM Output 1 N.O. Output 2 N.C. Output 2 COM Output 2 N.O. EG IN Connecon Terminals Descripon Connect to 12 24V AC/DC Power supply. Output 1 , N.C./COM/N.O. Relay output, Max. 5A@24VDC Output 2 , Relay output, Max. 1A@24VDC Egress In N.O. Push buon contact to ground, Press buon to Iniate door unlock Output 1 6 7 FCC STATEMENT 1. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. 2. Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/ TV technician for help.