Panasonic KX-FT21RS User Manual Page 100
- Page / 166
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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6.3. CONTROL SECTION
6.3.1. BLOCK DIAGRAM
TO
CIS
TO
THERMAL HEAD
CLK, SIG
STBI-2,THLAT
THCLK,THDAT
5V
(IC4)
RESET
BACK UP
ROM (IC2)
A0-17
D0-7
RD
KSTART,KLATCH,KSCLK,KTXD,KRXD,KIN0,KIN1,KIN2,KIN3
RS,E
VOL
HEAD-CTL
XWDERR
RD
WR
XRESETI
A0-17
D0-7
CIS-CTL
LED ON
ASIC
IC1
32.768KHz
20.736MHz
24MHz
T0,T2~T5
(IC7)
MOTOR
DRIVER
TO
MOTOR
TO
OPE PANEL
RX
SP
H/S RX
H/S TX
TX
RXIN
TXOUT
ANALOG FRONT END (IC5)
ANALOG SW
(IC6)
TO ANALOG
TO ANALOG
SRAM (IC3)
A0-17
D0-7
RD
WR
IC7
+5V
+24V
Q13
24V
TH ON
I/O
ANALOG PORT CONTROL
TO SRAM (IC3)
100
KX-FT21RS
- KX-FT21RS 1
- CONTENTS 2
- 1 INTRODUCTION 3
- 1.5. AC CAUTION 4
- (Bottom view) 5
- 1.7. FEATURES 6
- 1.8. SPECIFICATIONS 7
- 1.9. OPTIONAL ACCESSORIES 7
- 1.10. CCITT No. 1 TEST CHART 8
- 1.11. LOCATION OF CONTROLS 9
- 1.12. CONNECTIONS 10
- 1.13. INSTALLATION 11
- 1.13.3. SETTING YOUR LOGO 12
- 1.14.1. OUTLINE 14
- 1.14.2.1. MAINTENANCE LIST 15
- 1.14.2.2. MAINTENANCE CYCLE 15
- 1.14.3. MAINTENANCE 16
- Caution: 17
- Do not push on 17
- 2 TROUBLESHOOTING GUIDE 18
- 2.2. USER RECOVERABLE ERRORS 19
- Cover open button 20
- 2.3. TROUBLESHOOTING DETAILS 21
- 2.3.3. Simple Check List 22
- 1. No document feed 24
- 2. Paper JAM 25
- 3. Multiple feed 26
- 4. Skew 27
- 7. Skewed receiving image 29
- 1. Transmit problem 33
- Countermeasure 42
- 2.3.4.2.2. Remote programming 50
- 2. Program Mode Table 52
- Normal Wave Patterns 57
- NG Example 61
- 2.3.4.4. Analog Board Section 63
- 1. No key operation 69
- 2. No LCD indication 69
- 2.3.4.7. Sensor Section 70
- 2.3.4.8. Read Section 71
- 2.3.4.9. Thermal Head Section 73
- 2.4. PROGRAMMING AND LISTS 74
- 2.4.4. SERVICE FUNCTION TABLE 76
- 2.4.6. OTHER 78
- 2.5. TEST FUNCTIONS 79
- 2.5.2. BUTTON CODE TABLE 80
- 2.5.3. PRINT TEST PATTERN 80
- 2.6. JOURNAL 3 81
- 2.6.1. PRINTOUT EXAMPLE 82
- 3 ADJUSTMENTS 83
- 4 DISASSEMBLY INSTRUCTIONS 84
- 5.1. PREPARATION 95
- 6 CIRCUIT OPERATIONS 97
- 6.2. GENERAL BLOCK DIAGRAM 98
- 6.2.1. General Block Diagram 99
- 6.3. CONTROL SECTION 100
- 6.3.2. ASIC (IC1) 101
- 6.3.3. ROM (IC2) 105
- 6.3.4. RAM (IC3) 105
- 6.3.5. Reset Circuit 105
- 6.3.8. LED ARRAY(CIS) 108
- 6.4. FACSIMILE SECTION 109
- 6.4.2. Block Diagram 110
- 6.4.3. THERMAL HEAD 111
- 6.4.4. SCANNING BLOCK 113
- 6.4.6. GEAR SECTION 115
- 6.4.6.1. Mode Selection 115
- 6.4.6.2. Mode Operation 116
- 6.4.6.3.1. Idle status 116
- 6.4.6.3.2. Scanning 117
- 6.4.6.3.3. Printing 117
- 6.4.6.3.4. Copying 118
- 6.5. SENSORS AND SWITCHES 119
- 6.5.1. Motor Position Sensor 120
- 6.5.4. Document Sensor (PS1) 121
- 6.6. MODEM SECTION 122
- 6.8. NCU SECTION 130
- 6.9.1. GENERAL 132
- 6.9.2. MONITOR CIRCUIT 132
- 6.9.3. HANDSET CIRCUIT 132
- 6.9.4. MONITOR CIRCUIT 132
- 6.10. EXT. TEL 133
- 6.10.1. Circuit Diagram 134
- 6.11. OPERATION PANEL 135
- 6.11.2. SENSOR DETECTION 136
- 6.11.3. LCD CONTROL 136
- 7 FOR THE SCHEMATIC DIAGRAMS 140
- PFUP1183ZA 141
- PFUP1182ZA 143
- (COMPONENT VIEW) 145
- (BOTTOM VIEW) 145
- 9 SCHEMATIC DIAGRAM 147
- 11 FIXTURES AND TOOLS 152
- LOCATION 153
- 12.2. UPPER CABINET SECTION 154
- 12.4. MOTOR SECTION 156
- 14 REPLACEMENT PARTS LIST 159
- 14.2. DIGITAL BOARD PARTS 160
- 14.3. ANALOG BOARD PARTS 162
- 14.4. OPERATION BOARD PARTS 164
- 14.5. POWER SUPPLY BOARD 165
- 14.6. FIXTURES AND TOOLS 166
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