NINGBO DAVID HKN-9010 Service Manual

Infant radiant warmer

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EDITION/REVISION A/0

NINGBO DAVID

SERVICE MANUAL

HKN-9010

INFANT RADIANT WARMER

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Summary of Contents for NINGBO DAVID HKN-9010

Page 1 EDITION/REVISION A/0 NINGBO DAVID SERVICE MANUAL HKN-9010 INFANT RADIANT WARMER...
Page 2 NINGBO DAVID MEDICAL DEVICE CO., LTD. ADD: NO.158 DAQING ROAD, SHIPU, NINGBO, ZHEJIANG PROVINCE, CHINA POST CODE: 315731 FAX: 0086-574-65962111 MARKETING CENTER: NO. 11, ALLEY 722 SANGTIAN ROAD NINGBO, ZHEJIANG POST CODE: 315040 TEL: 0086-574-87800008, 87800009 FAX: 0086-574-87801111 E-MAIL: sales@chinadavid.cn david@mail.nbptt.zj.cn...
Page 3 SERVICE MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 WARRANTY The product being described in this manual is warranted against defects in materials or workmanship for one year from the date of shipment, with the following exceptions. 1. All consumable and disposable products are guaranteed to be free from defects upon shipment only.
Page 4 EDITION/REVISION A/0 COMPLEMENTARY NOTICE Since Ningbo David, conducts a continuous product improvement program, circuit and component improvements are sometimes incorporated into equipment before they can be incorporated into the printed manuals. This manual contains proprietary information, repairs and authorized modifications should be performed only by qualified service personnel to maintain your warranty and to avoid creating safety hazards.
Page 5 SERVICE MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 TABLE OF DEFINITIONS AND SYMBOLS TECHNICAL DEFINITIONS SKIN TEMPERATURE SENSOR: A sensing device including the link with the equipment intended to measure the infant’s baby temperature. CONTROL TEMPERATURE: The preventative control temperature to the temperature control. PRE-WARM MODE: A warm mode which can keep the mattress at a properly temperature.
Page 6 SERVICE MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 SYMBOLS Attention, Consult Accompanying Documents. Type F Fuse 4AH/250V Input Power Type T Fuse 800mAL/250V Type T Fuse 400mAL/250V Type T Fuse160mAL/250V Heater Power Indicator Data Communication Connector Load Symbol On (Power: Connection to the mains) Off (Power: Disconnection to the mains) On (only for a part of equipment) Off (only for a part of equipment)
Page 7 SERVICE MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 SEASONAL SAFETY CHECK 1. Please clean the plug of power cord at least once a year. Too much dust on plug may cause the fire. 2. The following safety checks should be performed at least every 12 months by a qualified person who has adequate training, knowledge, and practical experience to perform these tests.
Page 8: Table Of Contents
SERVICE MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 TABLE OF CONTENTS SECTION PAGE 1. GENERAL INTRODUCTION………………………………………………………………………………1-1 1.1 INTRODUCTION……………………………………………………………………………………………1-1 1.2 DESCRIPTION…………………………………………………………………………………...……… 1-1 1.3 COMPOSITION OF PRODUCTS………………………………………………………………...……… 1-1 2. INSTALLATION……………………………………………………………………………………………..2-1 2.1 UNPACKING…………………………………………………………………………………...………….2-1 2.2 INSTALLATION………………………………………………………………...………………….….…….2-1 2.3 OPERATION CHECKOUT PROCEDURE…………………………………...………………….….…….2-2 3. TECHNICAL INFORMATION………………………………………………………………………….…3-1 3.1 SPECIFICATION……………………………………………………………………………………………3-1 3.2 WORKING PRINCIPLE………………………………………………………………………...………….3-3 4.
Page 9: General Introduction
SERVICE MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 SECTION 1 GENERAL INTRODUCTION 1.1 INTRODUCTION This manual provides instructions for installation and maintenance of Infant Radiant Warmer. This manual provides the guidance for the qualified service personnel. 1.2 DESCRIPTION The Infant Radiant Warmer adopts 3 kinds of control mode: Pre-warm mode, Manual mode and Baby mode.
Page 10 SERVICE MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 DESCRIPTION OF PART EXPLANATION This main part is composed of the Heater, Reflective mantle, it is intended to provide the radiation for electromagnetic spectrum infrared range with Warmer Module weight of 10Kg, and its angle can be adjusted horizontal in two ways. The lifetime of heater is 2000hrs.
Page 11: Installation
OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 SECTION 2 INSTALLATION 2.1 UNPACKING Generally, the WARMER is usually packed to one carton. When taking out the equipment from the cartons, take care not to damage the spare parts of the WARMER. 2.2 INSTALLATION At least two professionals are required to do the installation of the WARMER with spanners.
Page 12: Operation Checkout Procedure
OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 B. Install the panel Insert the panel into the Fixed seat as the arrow indicates in figure 2.3.1, and turn it upward to make it vertical and press it as the figure 2.3.2 indicates. 车...
Page 13 SERVICE MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 IMPORTANT: At least two persons are required, one lifts the warmers, and the other has to check the casters. It needs Min. 70Kg to light the whole unit. Please support the stand with block to avoid the warmer inclining if the casters drop.
Page 14 SERVICE MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 ③ In Baby mode, pull off the skin sensor, the audible and visual alarm will occur, the alarm light of sensor and the set temperature indicator will show alarm code E0.1. Press Silence/Reset key to silence alarming for 4min.
Page 15 SERVICE MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 I. CHECK THE TIMER Under the normal working condition, press to indicate the current running time, If the indicated time is not accurate, please reset, and the specific setting method is as follows: Press the timer key, at the same time, turn on the controller for 3min, loosen the key when the indicated setting interface appears.
Page 16 SERVICE MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 K. CHECK THE ADJUSTMENT FUNCTION OF ANGLE OF WARMER MODULE Move the warmer moduel to rotate it at horizon angle. L. CHECK ILLUMINATION LIGHT Turn on the power switch of illumination light, and the light will be on. M.CHECK THE PANEL Push and pull the panel and check if the panels are firm or not.
Page 17: Technical Information
SERVICE MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 SECTION 3 TECHNICAL INFORMATION 3.1 SPECIFICATION Specifications for the Radiant Warmer with model HKN-9010 are provided in table 3.1. All specifications are subject to change without notice. TABLE 3.1 SPECIFICATIONS Power Requirements……………………………………………………………………AC220V-230V/50Hz Maximum Power Output………………………………………………………………………………600W Maximum Heater Power Output………………………………………………………540VA/240V...
Page 18 SERVICE MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 TABLE 1.1 SPECIFICATIONS (continued) The sensor position alarm in baby mode………………………………………………Alarm code E0.8 The tip every min in manual mode……………………………………………………Alarm code E0.9 Internal system failure…………………………………………………….……..Alarm code H0.1～H1.1 ENVIRONMENT TEMPERATURE Operating Range………………………………………………….……..……………………+18℃～+30℃ Storage Range……..………………………………………………….……………………… -40℃～+55℃ ENVIRONMENT HUMIDITY Operating Range…………………………………………………………………30%RH～75%RH Storage Range………………………………………………………………………………………≤93%RH...
Page 19: Working Principle
SERVICE MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 3.2 WORKING PRINCIPLE 3.2.1 GENERAL This section covers the function and the working principle, as for the figure for control system, please refer to figure 3.2 and 3.3. Surface temperature on mattress can be reached during the radiant system in figure 3.1, the radiant heater outputs in the way of fixed proportion to make the body temperature of patient resume;...
Page 20 SERVICE MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Keypad control Temperature indication Function alarm Output port Heat control output MIAN Temperature control probe of skin sensor Communication connector Over-temp checking probe of skin sensor Auxiliary Heat control output Output Port Figure 3.2 Control Block Diagram...
Page 21 SERVICE MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Start Initialization Timer 2 interrupt System self-test Timing Data Return Keypad checking Data handling INTO interrupt ADC data Trouble checking Return Alarm identificatio Heating control Series port interruption Charging control Data transfer Data display Return Programmed...
Page 22 SERVICE MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 3.2.2 Temperature Control Incubator temperature is adjusted through the compurgation between the baby temperature and the set temperature. The Infant Radiant Warmer adopts 3 kinds of control mode: Pre-warm mode, Manual mode and Baby mode, and the different mode had different way of heating. The user can choose the wanted control mode by pressing the keys on the controller.
Page 23 SERVICE MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 TABLE 3.1 ALARM (CONTINUE) ALARM MESSAGE DESCRIPTION When the baby temperature is lower 3.5 than the setting temperature ℃ code the heater will stop working , please press the Silence/reset key to silence E0.7 alarming for 4min, and then it can reset if there is no failure.
Page 24: Preventative Maintenance
OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 SECTION 4 PREVENTIVE MAINTENANCE 4.1 GENERAL The section provides cleaning and maintenance instructions. Warning: Please cut off the connection of power supply and turn off all switches before cleaning. 4.2 CLEANING This device must be cleaned and sterilized for the first time for initial use, or after used it for one week.
Page 25: Sterilization
OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Use a disinfectant-detergent to thoroughly clean all surfaces; then dry with a clean cloth or paper towel. D. Clean the X-ray tray Use a disinfectant-detergent to thoroughly clean all surfaces; then dry with a clean cloth or paper towel.
Page 26: Maintenance
OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 After gas sterilization, please keep ventilation for 16-24hrs. During the ventilation, the warmer should work in the day environment of 32℃-35℃. If you do not use the warmer after ventilation, please cover the warmer with the dustproof mantle. 4.4 MAINTENANCE 4.4.1 RECHARGEABLE BATTERY MAINTENANCE.
Page 27: Service
OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 SECTION 5 SERVICE 5.1 GENERAL This section provides system setting procedure and the troubleshooting procedure of these parts: replacement of illumination light, Quartz heater, Fuse, Internal charging Battery and Controller. 5.2 REPLACEMENT OF CHARGING BATTERY, FUSE, QUARTZ HEATER, AND ILLUMINATION LIGHT.
Page 28 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 5.2.3 REPLACEMENT OF CHARGING BATTERY Open Controller and replace internal battery. See figure 5.1, disonnect the battery fastener and the internal charing battery, and take out the plastic washer to replace the battery. Plastic washer Internal charing battery Battery fastener...
Page 29: System Setting Procedures
OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 B. Open the back cover of upper column to replace the fuse T800mAL/250V of powr replay R40 for illumination light. Take out the controller. See figure 5.3, open the fuse’s cover to take out the fuse T400mAL/250V and T800mAL/250V on power board, and unscrew the fuse’s seat of powr transformer to replace fuse T160mAL/250V.
Page 30 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 CODE 00.1 BRIGHTNESS Stipulate the brightness of the indicators and the set range is 00.0~01.5. The higher the value is, the brighter the data is. CODE 00.3 BABY TEMPERATURE COMPENSATION Stipulate the compensationof the baby temperature and the set range is -5.0~05.0. The first figure for set means increasing or decreasing.
Page 31 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 5.3.3 PROCEDURE At first, connected power supply, press and hold for 2s as soon as switch on until baby temprature indicator displays “ --.-“, and no display on Set temprature indicator. And then, press until Baby temprature indicator displays “78.6”...
Page 32: Troubleshooting Procedures
OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 5.4 TROUBLESHOOTING PROCEDURES 5.4.1 GENERAL Troubleshooting guides for the Controller are provided in Paragraph 5.4.3 and Paragraph 5.4.4. Paragraph 5.4.3 provides the alarm code when the controller alarms. Paragraph 5.4.4 provides troubleshooting in the form of flowcharts. It is confirmed that the system settings are correct before troubleshooting.
Page 33 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 5.4.3 TROUBLESHOOTING All alarms have the relevant alarm code except for the power faillure alarm , please refer to Table 5.1. TABLE 5.1 ERROR CODES TYPE ALARM CODE EXPLANATION AND CORRECTIVE ACTION Main RAM failure alarm H0.1 Replace main MCU...
Page 34 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 5.4.4 TROUBLESHOOTING FLOW CHART Before troubleshooting, forst, please switch off, and disconnect the power cable, and then open the top cover of warmer module and the back cover of column. And then connect the power cable and turn on the switch, at the same time, make sure that power +5V, +12V of controller, element, and all cables are in good condition.In working state, press Key and...
Page 35 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Auxiliary ADC failure alarm Primary power On main board between R10 and R11 Check R10 and R11. is +2.5V ? On main board Pin of U6-7 is +2.5V ? Check the associated circuits Between U6-7and R14, R15 Connect U6 to On main board...
Page 36 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Heat circuit failure alarm Inside warmer module Open circuit of heater? Replace heater Checking point: Point A Controller is in the heating stae of 100% J12-1 and on power board J12-3 is AC power? Checking point: Point B Solid relay is inside Control terminal...
Page 37 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Checking point: Point A Controller is in the state of non-heat J12-1 On power board and J12-3 is AC power? Checking point: Point C Solid reply is inside The control terminal Controller, K1 is on of solid replay K1 is +12V? Check solid relay and Power board...
Page 38 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Checking point: Point B On power board Voltage of U1-2 is ＞5mV? Check inductor T1 On power board Voltage of U1-1 is ＞2V? Check U1, R1, C3 On power board Triode Q1-B is Check R2, R4, C4 ＞0.7V? On main board...
Page 39 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Checking point: Point C On power board voltage of U1-2 is ＞5mV? Check inductor T1 On power board Voltage of U1-1 is ＞2V? Check U1, R1, C3 On power board Triode Q1-B is ＞0.7V? Check R2, R4, C4 On main board U10-11 is high level?
Page 40 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Skin Temperature Sensor Failure Alarm (E0.1) Check connection between air sensor and its seat, the connection Good conection Inset the sensor or J4 seat and J4 on main board The 31.0 ±0.2 Temperature Simulation (decade ℃...
Page 41 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Skin Temperature Sensor Failure Alarm (E0.2) Check connection between air sensor and its seat, the connection Good conection Inset the sensor or J3 seat and J4 on main board The 31.0 ±0.2 ℃...
Page 42 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Skin Temperature Sensor deviation Failure Alarm (E0.3) Check connection between air sensor and its seat, the connection Good conection Inset the sensor or J4 seat and J4 on main board The 31.0 ±0.2 ℃...
Page 43 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 OVER TEMPERATURE ALARM Heating source nearby Far away from heating source Over-temp probe On page 5-8 Temperature of Over-temp probe Troubleshooting Is normal? according to flow chart 5.5 Power output socket of heater is on the back J12-1 and J12-3 is checking point: Point C of controller...
Page 44 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 From sheet 1 U8-2, U12-5 Check connection btween On main board is high level? Main board and power board FLOW CHART 5.7 Over Temperature Failure Alarm (Sheet 2 of 2) Power failure alarm Controller has AC power input? Check main power input Fuse on the back cover of...
Page 45 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 From sheet 1 On power board output voltage of U3-3 is +5V? Check F1, B1, U3, C5, C9, C13, C6, D4 Check connetion between On power board J8-8 is high level? R17-R22 power board and main board On main board...
Page 46: Replacement Parts
OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 SECTION 6 REPLACEMENT PARTS 6.1 GENERAL This section provide the parts list of infant radiant warmer. Figure 6.1 Parts Location Diagram, Whole unit Table 6.1 Replacement Parts List, Whole unit ITEM No. DESCRIPTION PART NUMBER Warmer module...
Page 47 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Figure 6.2 Parts Location Diagram, Warmer Module...
Page 48 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Table 6.2 Replacement Parts List, Warmer Module ITEM No. DESCRIPTION PART NUMBER Friction slice（I） N05 001 00 Spring seat N05 002 00 Spring plate N05 003 00 Cross groove pan head oval tapping bolt ST2.9×16 See No.
Page 49 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Figure 6.3 Parts Location Diagram, Column...
Page 50 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Table 6.3 Replacement Parts List , Column ITEM No. DESCRIPTION PART NUMBER Cross arm of I.V. Pole K03 004 00 Infusion rod K03 005 00 Spring washer 6 See No. of standard Parts Flat washer 6 See No.
Page 51 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Figure 6.4 Parts Location Diagram, Bassinet and casters...
Page 52 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Table 6.4 Replacement Parts List, Bassinet and casters ITEM No. DESCRIPTION PART NUMBER Left panel K04 003 00 Cross groove pan head bolt M4×8 See No. of standard Parts Hole stopper N04 001 00 Slot pin1.8×12 See No.
Page 53 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Figure 6.5 Parts Location Diagram, Controller...
Page 54 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Table 6.5 Replacement Parts List, Controller ITEM No. DESCRIPTION PART NUMBER Operation panel of controller N02 001 00 Illumination lightPWL-2P2T N02 002 00 Control switch PWL-2P2T N02 003 00 Power socket（FN922-10-06 include power filter） 02 043 01 Fuse’s seat Y02 025 00...
Page 55 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Table 6.5 Replacement Parts List, Controller ITEM No. DESCRIPTION AND SPECIFICATION PART NUMBER Cross groove countersunk head bolt M3×8 See No. of standard Parts Cross groove countersunk head bolt M4×10 See No. of standard Parts Flat Washer 4 See No.
Page 56 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Table 6.6 Satandard parts list ITEM No. DESCRIPTION AND SPECIFICATION PART NUMBER Cross groove pan head oval tapping bolt ST2.9×16 BZ 165 Flat Washer 3 BZ 036 external teeth serrated lock washers 3 BZ 102 Hexagon nut M6 BZ 056...
Page 57 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Table 6.6 Satandard parts list ITEM No. DESCRIPTION AND SPECIFICATION PART NUMBER Flat wahser 8 BZ 040 Cross groove countersunk head bolt M3×30 BZ 163 Cross groove countersunk head bolt M3×8 BZ 018 Cross groove countersunk head bolt M4×10 BZ 085 Cross groove countersunk head bolt M3×16...
Page 58: Diagrams
OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 SECTION 7 DIAGRAMS 7.1 GENERAL The section provides wiring diagrams for Infant radiant warmer, parts location diagrams, and schematic diagrams of controller. D：Illumination light SD-14.5V/50W RL：heater 540W/AC240V T2：Transformer R.40 F3：T type fuse 800mAL/250V WIRING DIAGRAMS OF INFANT RADIANT WARMER...
Page 59 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 S1：General power switch F1, F2：F type fuse 4AL/250V F3：T type fuse 800mAL/250V 129-432 S3： Switch of illumination light F4：T type fuse 160mAL/250V S2： Controller’s switch KCD3A-2×2 PWL-2P2T D1：Earthed slice OT1.5-4 X50：Power filter FN9222-10-06 X52：RS232connector T2：Transformer R.40 B：Buzzer EFM-236LB/12VDC T1：Transformer R.20...
Page 60 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 PARTS LOCATION DIAGRAM FOR POWER BOARD 1...
Page 61 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 PARTS LOCATION DIAGRAM FOR POWER BOARD 2...
Page 62 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Parts List of power board QUANTI ITEM NO. CODE DESCRIPTION AND SPECIFICATION R1、R2、R11、R23～R25 Resistor 0805-10KΩ Resistor RJ-0.25-10KΩ R4～R7、R16 Resistor 0805-1KΩ R8、R12、R14、R15、 Resistor 0805-2KΩ R17～R20 R9、R10、R13、R29 Resistor 0805-200Ω Resistor 0805-7.5KΩ Resistor 0805-3KΩ Resistor 0805-100Ω Resistor RJ-0.25-30KΩ...
Page 63 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Parts List of power board ITEM NO. CODE DESCRIPTION AND SPECIFICATION QUANTITY Integrated circuit MAX232CPE Integrated circuit MAX489CSD D1～D3 Diode 1N4148 D4、D5 Diode 1N5339B D6、D7 Diode 1N4002 Diode 1N5350B Diode HZ11B1 Q1～Q5、Q7 Triode S8050 Triode S8550 B1、B2...
Page 64 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 ctr_bat SCHEMATIC DIAGRAM FOR POWER BOARD SCHEMATIC DISGRAM OF POWER BOARD...
Page 65 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 PARTS LOCATION DIAGRAM OF MAIN BOARD 1...
Page 66 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 PARTS LOCATION DIAGRAM OF MAIN BOARD 2...
Page 67 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Parts List of main board ITEM NO. CODE DESCRIPTION AND SPECIFICATION QUANTITY R1、R2、R5～R9、R17 Resistor 0805-10KΩ R3、R4、R10、R11 Resistor RJ-0.25-10KΩ R12、R13 Resistor 0805-1KΩ R15、R16 Resistor RJ-0.25-20KΩ Resistor Group 10KΩ C1～C21 Capacitor 0805-0.1μF C22、C23 Capacitor CA45A-16V-10μF C24～C35 Capacitor 0805-103 C36～C39...
Page 68 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 clear LEDCS DI N led_alm led_pwr SCHEMATIC DISGRAM OF MAIN BOARD 7-11...
Page 69 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 PARTS LOCATION DIAGRAM OF DIPALY BOARD 1 7-12...
Page 70 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 PARTS LOCATION DIAGRAM OF DIPALY BOARD 2 7-13...
Page 71 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 Parts List of Display board ITEM NO. CODE DESCRIPTION AND SPECIFICATION QUANTITY R9、R18、R19 Resistor 0805-1 KΩ Resistor 0805-10 KΩ R1、R2 Resistor 0805-24 KΩ C1、C2 Capacitor 0805-0.1μF C3、C4 Capacitor CA45A-16A-10μF Q1、Q2 Triode 8050 U1、U2 Integrated circuit MAX7221CWG Group leads 5×2（10contacts）...
Page 72 OPERATOR’S MANUAL FOR INFANT RADIANT WARMER EDITION/REVISION A/0 SDP2 SDP2 SDP2 SCHEMATIC DIAGRAM OF DISPLAY BOARD 7-15...