KX-MB773RU, KX-MB773UA - Panasonic Fax Service Manual Supplement (repair manual). Page 2

2

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

Notes: 
Parts with (*1) marking have been changed at the same time.
Parts with (*2) marking have been changed at the same time.
Parts with (*3) marking have been changed at the same time.

Remarks: 
*a: To enhance the quality.
*c: To share the parts with other models.

2. Change of material or dimension
3. To meet approved specification
4. Standardization
5. Addition
6. Deletion
7. Correction
8. Other

Ref. No.

Part No.

Part Name & Description 

Pcs/

Set

Remarks

Time of Change

Original (Old)

(Suffix)

TOP COVER SECTION
61

PFDS1030Y

ROLLER

1

*a

1

V

---

71

---------

GEAR  See to TOP COVER SECTION
(P.4)

1

*c

5

V

---

ADF SECTION
119

PFUS1824Z

COIL SPRING (*1) See to ADF SEC-
TION (P.4)

1

*c

4

Y

---

124

PFHE1298Z

METAL PARTS (*1) See to ADF SEC-
TION (P.4)

1

*c

4

Y

---

126

PFUG1049Y

PFUG1049Y

GUIDE (*1) See to ADF SECTION
(P.4)

1

*c

4

---

---

132

PFHR1710Y

CAM

2

*a

1

W

---

133

PFHR1290Z

CHASSIS

1

*a

1

W

---

138

PFHR1289Z

CHASSIS

1

*a

1

W

---

141

---------

COVER (*1) See to ADF SECTION
(P.4)

1

*c

5

---

---

ACCESSORIES AND PACKING MATERIALS
A1

PFQW2639Y

LEAFLET

1

*a

1

V

---

MAIN BOARD
IC402

PFWIMB773RU2

IC (ROM) (KX-MB773RU)  (Change 1)
[Program Ver. GAU1RR 

→ GAU1RS]

1

*a

1

W

---

IC402

PFWIMB773UA2

IC (ROM) (KX-MB773UA)  (Change 1)
[Program Ver. GAU1XD 

→ GAU1XE]

1

*a

1

W

---

R391

ERJ2GEJ104

RESISTOR: 10k

Ω

1

*a

1

W

---