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Ref.No. : HA-
Hi-Fi Quick Service Manual Date :September 2002
Audio NV-VZ14/RZ15/ Frequence: Cases reported (country)
Model:
VZ15/VZ55/VZ75 A
Subject : Tape jaming or gear noise
Objective Model :
Symptom : Roll up spring inside of cassette compartment is deformed. This caused follwing problems.
1. The cassette insertion is difficult .
2. In the worst case, the tape gets jammed or mechanism generates gear noise .
Cause : Deffective roll up spring has been used in production line in JVC Malaysia
Remedy : Remove roll up spring by cutting it off.
1st Step 2nd Step
Prepare Nipper as below to avoid cut piece Insert Jig to open cassette compartment.
gets lost in the mechanism. Cut off Roll up spring.
STICKY TAPE ETC.
Roll up spring before cut off. After cut off
CUT HERE
Action on production :
Retreaved the original condition from the production of Aug.13th.
PANA Model Production V-No / Serial No Summary List (From 06/July~05/Aug)
Models and serial numbers which correspond to the deffect.
(Products with serial number other than the following are considered to be no problem.)
No Model M . No Prod'n Date Serial no Qty
1 NV-RZ15EGE P2012 8-Jul G2BKC00001 - G2BKC01200 1200
NV-RZ15EGE P2013 8-Jul G2BKA00001 - G2BKA00800 800
NV-RZ15EGE P2014 9-Jul G2BKA00801 - G2BKA01300 500
NV-RZ15EGE P2015 6-Aug H2BKA00001 - H2BKA01500 1500
NV-RZ15EGE P2016 12-Aug H2BKA01501 - H2BKA02300 800
2 NV-RZ15EN P1122 15-Jul G2BKB00001 - G2BKB00500 500
NV-RZ15EN P1123 17-Jul G2BKB00501 - G2BKB01200 700
NV-RZ15EN P1124 18-Jul G2BKB01201 - G2BKB01700 500
NV-RZ15EN P1125 19-Jul G2BKB01701 - G2BKB03200 1500
3 NV-RZ15ENS P4111 19-Jul G2BKA00001- G2BKA01500 1500
4 NV-VZ14EG P0325 25-Jul G2BKA00471 - G2BKA00970 500
NV-VZ14EG P0326 26-Jul G2BKA00971 - G2BKA01570 600
NV-VZ14EG P0327 8-Aug H2BKA00001 - H2BKA00400 400
5 NV-VZ14EGE P0908 10-Jul G2BKA00001 - G2BKA00600 600
NV-VZ14EGE P0909 10-Jul G2BKA00601 - G2BKA01600 1000
NV-VZ14EGE P0910 8-Aug H2BKA00001 - H2BKA01000 1000
6 NV-VZ14EN P3622 25-Jul G2BKC00001 - G2BKC00800 800
7 NV-VZ14ENS P3809 22-Jul G2BKA00001 - G2BKA01000 1000
8 NV-VZ14PN P0715 10-Jul G2BKB00001 - G2BKB01000 1000
NV-VZ14PN P0716 17-Jul G2BKB01001 - G2BKB01800 800
NV-VZ14PN P0717 27-Jul G2BKB01801 - G2BKB02200 400
NV-VZ14PN P0718 27-Jul G2BKB02201 - G2BKB02300 100
NV-VZ14PN P0719 27-Jul G2BKB02301 - G2BKB02900 600
9 NV-VZ15A P2111 23-Jul G2BKA00001 - G2BKA01300 1300
10 NV-VZ15B P0806 3-Aug H2BKA00001 - H2BKA00300 300
11 NV-VZ15EGE P1508 15-Jul G2BKB00001 - G2BKB01500 1500
NV-VZ15EGE P1509 3-Aug H2BKB00001 - H2BKB01100 1100
NV-VZ15EGE P1510 7-Aug H2BKB01101 - H2BKB02100 1000
12 NV-VZ15EM P2209 9-Jul G2BK00001 - G2BKB00500 500
NV-VZ15EM P2210 2-Aug H2BKA00001 - H2BKA01000 1000
13 NV-VZ15EN P1429 6-Jul G2BKA00001 - G2BKA00400 400
NV-VZ15EN P1430 8-Jul G2BKA00401 - G2BKA00900 500
NV-VZ15EN P1431 11-Jul G2BKA00901 - G2BKA02400 1500
NV-VZ15EN P1432 15-Jul G2BKA02401 - G2BKA03900 1500
NV-VZ15EN P1433 17-Jul G2BKA03901 - G2BKA04400 500
NV-VZ15EN P1434 17-Jul G2BKA04401 - G2BKA05900 1500
NV-VZ15EN P1435 29-Jul G2BKA05901 - G2BKA06900 1000
NV-VZ15EN P1436 1-Aug G2BKA06901 - G2BKA07900 1000
14 NV-VZ15ENC P3513 26-Jul G2BKA00001 - G2BKA01500 1500
15 NV-VZ15ENS P3913 23-Jul G2BKB00001 - G2BKB01000 1000
NV-VZ15ENS P3914 26-Jul G2BKB01001 - G2BKB02000 1000
16 NV-VZ55EG P0004 12-Jul G2BKB00001 - G2BKB00310 310
17 NV-VZ55EM P3106 2-Aug G2BKB00001 - G2BKB00300 300
18 NV-VZ55EN P1320 12-Jul G2BKB01151 - G2BKB01950 800
NV-VZ55EN P1321 29-Jul G2BKB01951 - G2BKB02550 600
NV-VZ55EN P1322 10-Aug H2BKB00001 - H2BKB00750 750
19 NV-VZ55ENC P2909 24-Jul G2BKC00001 - G2BKC00500 500
20 NV-VZ55ENS P4209 19-Jul G2BKC00001 - G2BKC00900 900
NV-VZ55ENS P4210 27-Jul G2BKC00901 - G2BKC01200 300
21 NV-VZ75EM P1203 17-Jul G2BKC00001 - G2BKC00500 500
22 NV-VZ75EN P0213 6-Jul G2BKB00001 - G2BKB00500 500
NV-VZ75EN P0214 8-Jul G2BKB00501 - G2BKB00800 300
NV-VZ75EN P0215 8-Jul G2BKB00801 - G2BKB01400 600
NV-VZ75EN P0216 5-Aug H2BKA00001 - H2BKA00800 800
23 NV-VZ75ENS P4008 18-Jul G2BKC00001 - G2BKC00300 300
Total : 43860
Sample photos of deformed Roll up spring.
Group 1 --- OK
Photo in Group A shows original and
normal condition of spring.
Group 2 --- NG
NO. 1
If bent at this area - NG
Photos in Group B , No.1 to No.4 ,
show deformed springs which require
the treatment as explained in
"Remedy" on first page .
Cut off the spring at the place
indicated by the arrow.
NO. 2 NO. 3
If bent & came out at this area - If bent at this area - NG
Bent &
NO. 4 NO. 5
If bent & gap at this area - If bent, twisted & gap at this area -