KX-TG6621RUB, KX-TG6621RUM, KX-TG6621UAB, KX-TG6621UAM, KX-TG6621CAB, KX-TG6621CAM, KX-TG6622RUB, KX-TG6622RUM, KX-TG6622CAB, KX-TGA661RUB, KX-TGA661RUM - Panasonic Telephone Service Manual Supplement (repair manual)

Model
KX-TG6621RUB KX-TG6621RUM KX-TG6621UAB KX-TG6621UAM KX-TG6621CAB KX-TG6621CAM KX-TG6622RUB KX-TG6622RUM KX-TG6622CAB KX-TGA661RUB KX-TGA661RUM
Pages
20
Size
1.28 MB
Type
PDF
Document
Service Manual Supplement
Brand
Device
Telephone / DIGITAL CORDLESS ANSWERING SYSTEM
File
kx-tg6621rub-kx-tg6621rum-kx-tg6621uab-kx-tg6621ua.pdf
Date

View Panasonic KX-TG6621RUB / KX-TG6621RUM / KX-TG6621UAB / KX-TG6621UAM / KX-TG6621CAB / KX-TG6621CAM / KX-TG6622RUB / KX-TG6622RUM / KX-TG6622CAB / KX-TGA661RUB / KX-TGA661RUM Service Manual Supplement online

ORDER NO. KM41407559SE
Telephone Equipment
Model No.
KX-TG6621RUB
KX-TG6621RUM
KX-TG6621UAB
KX-TG6621UAM
KX-TG6621CAB
KX-TG6621CAM
KX-TG6622RUB
KX-TG6622RUM
KX-TG6622CAB
KX-TGA661RUB
KX-TGA661RUM
Digital Cordless Answering System
B: Black Version
M: Metalic Grey Version
Please use this manual with the original service manual mentioned on the page 3.
2
TABLE OF CONTENTS
PAGE
1 ORIGINAL SERVICE MANUAL INFORMATION ----------3
2 REPLACEMENT PARTS LIST ---------------------------------3
2.1. REFERENCE CHART ------------------------------------3
2.2. ORIGINAL AND NEW PARTS COMPARISON
LISTS----------------------------------------------------------3
3 CHANGES (Suffix Code: E or later) -------------------------4
3.1. Technical Descriptions ------------------------------------4
3.1.1. Block Diagram (Handset)----------------------------4
3.1.2. Circuit Operation (Handset)-------------------------5
3.1.3. Signal Route --------------------------------------------6
3.2. Troubleshooting Guide------------------------------------8
3.2.1. Check Power -------------------------------------------8
3.2.2. Check Battery Charge--------------------------------8
3.2.3. Bell Reception------------------------------------------8
3.2.4. Troubleshooting by Symptom (Handset) --------9
3.3. Measurements and Adjustments --------------------- 11
3.3.1. Adjustment Standard (Handset) ----------------- 11
3.4. Miscellaneous --------------------------------------------- 12
3.4.1. Terminal Guide of the ICs, Transistors and
Diodes-------------------------------------------------- 12
3.5. Schematic Diagram-------------------------------------- 14
3.5.1. Schematic Diagram (Handset) ------------------- 14
3.6. Printed Circuit Board ------------------------------------ 17
3.6.1. Circuit Board (Handset)---------------------------- 17
3.7. Replacement Parts List --------------------------------- 19
3.7.1. Handset ------------------------------------------------ 19
3
1 ORIGINAL SERVICE MANUAL INFORMATION
2 REPLACEMENT PARTS LIST
2.1.
REFERENCE CHART
2.2.
ORIGINAL AND NEW PARTS COMPARISON LISTS
Serial No.Label tells you the suffix code as follows.
Note:
Please refer to "1 ORIGINAL SERVICE MANUAL INFORMATION".
Model No. on S/M
Destinations
Order No. of S/M
Suffix Code
Base Unit Handset
KX-TG6621RUB/KX-TG6621RUM/KX-TG6621UAB/KX-TG6621UAM/
KX-TG6621CAB/KX-TG6621CAM/KX-TG6622CAB/KX-TGA661RUB/
KX-TGA661RUM
CIS
KM41103336CE
---
D to E
KX-TG6622RUB/KX-TG6622RUM/KX-TGA661RUB/KX-TGA661RUM
Russia and Belarus
KM41204888SE
---
D to E
Reason for Change
*The following items (1-8) indicate the reason for change. See the “Notes” column for each part in ORIGINAL AND NEW PARTS 
COMPARISON LISTS.
1. Improve performance
Note:
To change Main board in handset board.
Change parts based on Suffix Code.
2. Change of material or dimension
3. To meet approved specification
4. Standardization
5. Addition
6. Deletion
7. Correction
8. Other
4
3 CHANGES (Suffix Code: E or later)
3.1.
Technical Descriptions
3.1.1.
Block Diagram (Handset)
[Changed from original section “4.3. Block Diagram (Handset)”]
QSPI
FLASH MEMORY
IC4
SPEAKER
RECEIVER
MIC
CHARGE
Power Failer Mode
Power Supply SW
Q10, R11, Q12,
Q11, R14, R13, R6
CIRCUIT
Q4, Q5, Q6,Q
4
Q
5
Q
6
,
Q9, R4Q
9
R
4
CHARGE
CONTACTS
CHARGE(+)
CHARGE_CTRL
BATTERY_ON
CHARGE
EEPROM
SCL
SDA
BATTERY
TERMINAL
R45
VBAT
BATT-
1.8 V
Q2Q
2
1.8 V
CP 2.8 V
LCD
CD
RESET
CSB
SDA
 SCL
CPU
Analog
Front
End
D/A
A/D
35
37
21
22
17
18
34
33
66
67
 38
24
44
45
73
63
64
76
ADPCM
Codec
Filter
DSP
Speech
Decoding
Speech
Encoding
BMC
Burst
Decoding
ANT1
Burst
Encoding
RF 
PLL
MOD/DEMOD
3
1
2
87
86
RXn
RXon
ANT1
DA801
RXp
TXp
TXn
TXon
7
8
XTAL
X1
10.368
MHz
BATTERY
46
ON SWITCH
KEYPAD
Charge
Pump
ROWS
COLUMNS
CP3.0V
D3
CP2.8V
CPV2
57, 58, 59, 60
25, 11, 12, 13, 14, 55
53, 48, 47, 51 QSPI-IO 0-3
BBIC
IC1
IC3
 65
LCD-BACK  LIGHT
KEY   LED
BELL  LED
61
80
88
LDO_CTRL
KX-TGA661 BLOCK DIA
GRAM (HANDSET)
CP 3.0 V
CP 2.8 V
QSPI
Control
 52 QSPI-SCK
 49 QSPI-CS
TGA661 only
79

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