Sign In
Upload
Download
Table of Contents
Contents
Add to my manuals
Delete from my manuals
Share
URL of this page:
HTML Link:
Bookmark this page
Add
Manual will be automatically added to "My Manuals"
Print this page
×
Bookmark added
×
Added to my manuals
Manuals
Brands
Motorola Manuals
Portable Radio
GP328
Detailed service manual
Troubleshooting Charts; Troubleshooting Flow Chart For Controller - Motorola GP328 Detailed Service Manual
Hide thumbs
Also See for GP328
:
User manual
(30 pages)
,
Quick reference card
(23 pages)
,
Specifications
(4 pages)
1
2
3
4
5
6
7
8
Table Of Contents
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
page
of
272
Go
/
272
Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Advertisement
Troubleshooting charts
9.0
Troubleshooting charts
INT
AUDIO
NO
J403 Audio
at Pin 2 &
Pin 3
YES
Audio from Pin 41
Check Spk.
ASFIC, U404?
Flex Connec-
Check
NO
U3220
LV ZIF
EXT
PTT
Radio could
not PTT
externally
OPT_SEL_1 &
OPT_SEL_2
EXT
SPKR
NO
J403 Pin 9 low?
Pin 8 high?
YES
ASFIC U404
Pin 14 & 15
high?
YES
Check
U420 Audio PA
PTT
Press PTT. Red
LED does not
light up
Audio at
YES
AudioPA
(U420)
input
PTT U409
Pin 53
Check
low?
Audio PA
(U420)
YES
NO
Press PTT
Q502-2
NO
High?
Audio at
Check
Pin 2
Q502-2
U404?
voltage
YES
Check
LED should
ASFIC U404
light up
J403
NO
Check
Accessories
Pin 8 & 9
low?
U409
YES
YES
Pin 52, 6
low?
Check
NO
Accessories
Troubleshoot-
NO
Check
U404
MCU Check
Power Up
Alert Tone
OK?
NO
Speaker
Check
OK?
PB504
YES
No
U409 EXTAL=
7.3728 MHz?
LED
YES
Q502,R501
OK?
U3701 Pin 19
16.8 MHz
No
Replace
Faulty
Component
5V at U3711?
3.3V at U3201?
Check
MCU
U409 Reset Pin
94 High?
See FGU
ing chart
MCU is OK
Troubleshooting Flow Chart for Controller
YES
Not able to pro-
gram RF Board
ICs
NO
NO
Replace
Speaker
YES
YES
NO
Read Radio
OK?
YES
NO
NO
See FGU
Troubleshooting
YES
7.5V at
NO
Pin 3/5 U3711?
7.5V at Pin 1
U3201
YES
YES
NO
Check any short
to SWB+,
Vdda or Vddd
YES
6B-41
Before replacing
MCU, check SPI
clock, SPI data,
and RF IC select
Check
Setup
Reprogram the
correct data.
NO
Check
Q400
Replace
U3711/U3201
Table of
Contents
Previous
Page
Next
Page
1
...
146
147
148
149
Advertisement
Table of Contents
Troubleshooting
Troubleshooting Chart
58
Troubleshooting charts
101
Troubleshooting Flow Chart for Receiver (Sheet 1
102
Troubleshooting Flow Chart for Receiver (Sheet 2
103
Troubleshooting Flow Chart for Transmitter
104
Troubleshooting Flow Chart for Synthesizer
105
Troubleshooting Flow Chart for VCO
106
Troubleshooting charts
147
Troubleshooting Flow Chart for Receiver (Sheet 1
148
Troubleshooting Flow Chart for Receiver (Sheet 2
149
Troubleshooting Flow Chart for Transmitter
150
Troubleshooting Flow Chart for Synthesizer
151
Troubleshooting Flow Chart for VCO
152
Troubleshooting charts
189
Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)
190
Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)
191
Troubleshooting Flow Chart for Transmitter
192
Troubleshooting Flow Chart for Synthesizer
193
Troubleshooting Flow Chart for VCO
194
troubleshooting flow chart for controller
231
Troubleshooting charts
261
Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)
262
Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)
263
Troubleshooting Flow Chart for Transmitter
264
Troubleshooting Flow Chart for Synthesizer
265
Troubleshooting Flow Chart for VCO
266
Related Manuals for Motorola GP328
Two-Way Radio Motorola GP328 User Manual
Professional two-way radio (30 pages)
Two-Way Radio Motorola GP328 Quick Reference Card
(23 pages)
Portable Radio Motorola GP328 Specifications
(4 pages)
Portable Radio Motorola GP328 Specification
Professional radio (2 pages)
Two-Way Radio Motorola GP328 Operation Manual
(1 page)
Portable Radio Motorola GP338 User Manual
(44 pages)
Radio Motorola GP338 User Manual
Professional two-way radio (40 pages)
Two-Way Radio Motorola GP338 Instruction Booklet
The power tool for contact & control aversatile radio (4 pages)
Two-Way Radio Motorola Professional Series GP338 XLS Instruction Booklet
Professional series portable two-way radio (4 pages)
Portable Radio Motorola GP329 PLUS Instruction Booklet
Professional portable radios (6 pages)
Portable Radio Motorola GP320 User Manual
Professional radio (26 pages)
Portable Radio Motorola GP340 Basic User's Manual
(10 pages)
Portable Radio Motorola GP340 Ex Basic User's Manual
(132 pages)
Portable Radio Motorola GP330 User Manual
Professional (23 pages)
Portable Radio Motorola GP366R User Manual
(196 pages)
Portable Radio Motorola GP360 Basic User's Manual
(62 pages)
Related Content for Motorola GP328
Handie-Talkie MTX Series Troubleshooting Charts
Motorola Handie-Talkie MTX Series
ASTRO XTS 3000 Troubleshooting Charts
Motorola ASTRO XTS 3000
EX500 Troubleshooting Charts
Motorola EX500
GP68 Troubleshooting Charts
Motorola GP68
ASTRO XTS 5000 Chapter 5 Troubleshooting Charts
Motorola ASTRO XTS 5000
ASTRO XTS 2500 Chapter 6.1 Vhf Troubleshooting Charts
Motorola ASTRO XTS 2500
ASTRO XTS 5000 Chapter 6 Troubleshooting Charts
Motorola ASTRO XTS 5000
ASTRO XTS 5000 Chapter 5 Troubleshooting Charts
Motorola ASTRO XTS 5000
ASTRO XTSTM 4000 Chapter 5 Troubleshooting Charts
Motorola ASTRO XTSTM 4000
GP344 Chapter 2 Troubleshooting Charts
Motorola GP344
ASTRO XTS 5000 Chapter 5 Troubleshooting Charts
Motorola ASTRO XTS 5000
GP2000 Troubleshooting Charts
Motorola GP2000
GP88s Troubleshooting Charts
Motorola GP88s
HT Series Uhf Band 1 Troubleshooting Charts
Motorola HT Series
HT 1000 series Troubleshooting Charts
Motorola HT 1000 series
GP350 Troubleshooting Charts
Motorola GP350
This manual is also suitable for:
Gp338
Table of Contents
Print
Rename the bookmark
Delete bookmark?
Delete from my manuals?
Login
Sign In
OR
Sign in with Facebook
Sign in with Google
Upload manual
Upload from disk
Upload from URL