PYE Portable Stereo Radio Cassette Recorder Teardown

ID: 175670

Description: This is a teardown of the PYE Portable Stereo...

Steps:

1. Radio weight: 1.343kg. Radio plays cassette tapes and picks up radio signals.
2. Length: 340mm
3. Width: 80mm
4. Height: 124mm

5. Cord Weight: 89g. Cord powers radio.
6. Cord Length: 1,883mm
7. Plug width: 41mm
8. Plug height: 27mm

9. Removed battery case lid. Weight: 25g. Covers batteries, protecting them.
10. Length: 209mm
11. Width: 2.5mm
12. Height: 38mm

13. Unscrewed the 4 medium length back screws. Phillips head, pointed tip. Weight: <1g. Holds back case to front case.
14. Length: 26mm
15. Diameter: 5.5mm
16. Unscrewed long length back screw. Phillips head, pointed tip. Weight: <1g. Holds back case to front case.
17. Length: 37mm
18. Diameter: 5.5mm

19. Took handle off using a screwdriver to push down the plastic holding it in place. Weight: 37g. Allows user to carry radio.
20. Length: 303mm
21. Width: 16mm
22. Height: 64mm

23. Separated the front and back cases revealing the components inside.

24. Undid the radio station picker by pulling it out. This comprised of the radio station wheel, the radio station string, the radio station yellow marker and the radio station spring.
25. Radio station wheel weight: 6g. User can rotate wheel to pick a different radio station.
26. Diameter: 40mm
27. Width: 21mm

28. Radio station picker yellow marker weight: <1g. Signals to user what radio station it’s picking up.
29. Length: 16mm
30. Width: 9.5mm
31. Height: 12.5mm

32. Radio station picker spring weight: <1g. Tensions radio station picker to the front case so it doesn’t fall out.
33. Length:12.5mm
34. Diameter: 3mm

35. Radio station picker string weight: <1g. Pulls the radio station yellow marker across.
36. Length between two red arrows: 413mm
37. Diameter: 1mm

38. Unscrewed the 5 screws holding the speakers to the front case. Phillips head, pointed tip. Weight: <1g. Holds the speakers to the front case.
39. Length: 9mm
40. Diameter: 6mm

41. While the radio was clamped to the table I used a plier to pry the two speakers off, they were still connected to the back case with the wires.
42. Then I used the plier to remove the speaker brackets. Weight: <1g. Allows the speaker screws to hold the speaker to the front case without ruining the speakers.
43. Length: 18mm
44. Width: 13mm
45. Height: 1mm

46. Took off both speaker meshes from the front case using a plier to straighten out the mesh tabs. Weight: 26g. Protects speakers and dissipates sound.
47. Length: 10mm
48. Width: 97mm
49. Height: 11mm

50. There was soft material behind the speaker meshes that just fell out. Weight: <1g. Dissipates sound.
51. Length: 10mm
52. Width: 10mm
53. Height: 0.5mm

54. I took out the door wire using pliers as it was hard to reach. It ended up flinging across the room because it was actually a spring. Weight: <1g. Allows door to lift up and down on its own.
55. Length: 28mm
56. Width: 3mm
57. Height: 6mm
58. Pulled off the front case foam which was easy to do as it wasn't stuck on very well. Weight: <1g. Holds the small PCB to the back case and stops it from moving out of place.
59. Length: 15mm
60. Width: 10mm
61. Height: 11mm

62. Pried off the door. Weight: 41g. Protects cassette tape and internals.
63. Length: 126mm
64. Width: 88mm
65. Height: 24mm
66. Pried off the two door metals. Weight: <1g. Hold cassette in place when inside radio.
67. Length: 25mm
68. Width: 5mm
69. Height: 0.5mm

70. Poked out the door plastic. Weight: 5g. Allows the cassette tape name to be read whilst in the radio and gives information about tape direction.
71. Length: 111mm
72. Width: 22mm
73. Height: 1mm
74. The front case is now free. Weight: 123g. Protects inside components and keeps everything in place. Has aesthetic value as well.
75. Length: 345mm
76. Width: 30mm
77. Height: 123mm

78. Undid the 2 screws on the thermal coil using a screwdriver. Phillips head, pointed tip. Weight: <1g. Holds thermal coil to back case.
79. Screw length: 11mm
80. Screw diameter: 5mm
81. This also released the 2 washers. Weight: <1g. Height: 1mm. Distributes load from the thermal coil screws onto the thermal coil. Protect against damage.
82. Washer diameter: 12mm
83. Pulled out thermal coil, but it was still connected to the back case with two more screws. I couldn't unscrew these, so I applied WD40 to the 2 screws and waited 10 minutes for it to seep it. But I still couldn't remove the screws so I just left them.

84. Took off the volume sliders with pliers. Weight: <1g. Allows user to change the volume and tone of the audio.
85. Length: 17mm
86. Width: 5mm
87. Height: 6mm

88. Undid the 4 tape screws with a screwdriver. Phillips head, pointed tip. Weight: <1g. The tape was still stuck to the back case with wires, but now I can get to the PCB screws. Holds tape to the back case.
89. Length: 9mm
90. Diameter: 6mm

91. Ripped the wires off the PCB and the other components to free them (speakers, tape, etc.)

92. Unscrewed the 2 PCB screws. Phillips head, pointed tip. They had different diameters. Green screw weight: <1g. Holds PCB to the back case.
93. Length: 9mm
94. Diameter: 5mm
95. Blue screw weight: <1g. Holds PCB to the back case.
96. Length: 8.5mm
97. Diameter: 6mm

98. Pulled off the 2 buttons to release the PCB. Weight: <1g. Allows user to turn the radio off and on.
99. Length: 32mm
100. Width: 13mm
101. Height: 9mm

102. Pulled the 6 wires off the speakers. All the wires have a diameter of 1mm and a weight of <1g. The wires carry electric current to both speakers and the PCB.
103. Length: 442mm
104. Length: 255mm
105. Length: 214mm
106. Length: 236mm
107. Length: 380mm
108. Length: 377mm

109. The speakers are now free. Weight: 60g. Produce audio and amplify it.
110. Diameter: 77mm
111. Height: 22mm

112. Pulled off the thick tape wire. Diameter: 1mm. Length: 229mm. Carries electric current to the tape and the PCB.
113. Pulled off the other tape wires. The tape is now free.

114. Tape. Weight: 221g. Play, stop, pause, rewind, skip and record on a cassette tape.
115. Length: 315mm
116. Width: 14.5mm
117. Height: 21.5mm

118. Pulled the 7 wires off the thermal. All the wires have a diameter of 1mm and a weight of <1g. The wires carry electric current to the thermal wire and the PCB
119. Length: 315mm
120. Length: 305mm
121. Length: 215mm
122. Length: 239mm
123. Length: 273mm
124. Length: 175mm
125. Length: 96mm

126. Took wire tube off the wires. Weight: <1g. Length: 41mm. Hold the thermal wires together.
127. Diameter: 7mm
128. Wire metal. Weight: <1g. Length: 38mm. Hold the thermal wires together.
129. Width: 6mm
130. Height: 0.5mm
131. Wire metal tube weight: <1g. Ensures no electric current is transferred to the wire metal from the wires or vice versa.
132. Length: 31mm
133. Diameter: 3mm

134. Pulled apart the PCB subassembly into PCB big, PCB small, bread wire, metal, rubber, & the 8 PCB wires.
135. PCB big weight: 129g. Controls the operations of the radio.
136. Length: 150mm
137. Width: 112.5mm
138. Height: 26.5mm

139. Bread wire weight: <1g. Length: 68mm. Hold the PCB wires together.
140. Width: 2mm
141. Height: 1mm
142. Metal weight: <1g. Diameter: 9mm. Connects the PCB wires to the PCB.
143. Height: 7mm
144. Rubber weight: <1g. Diameter: 12.5mm. Ensures no electric current is transferred from the PCB to the other radio components.
145. Height: 8mm

146. The 8 PCB wires. They all have a weight of <1g and a diameter of 1mm. Length: 294mm. The wires carry electric current to the two PCBs
147. Length: 259mm
148. Length: 299mm
149. Length: 176mm
150. Length: 298mm
151. Length: 255mm
152. Length: 215mm
153. Length: 238mm

154. PCB small weight: 10g. Controls the volume and tone of the radio audio.
155. Length: 66mm
156. Width: 40.5mm
157. Height: 19mm

158. Back case is done. Weight: 540g. Protects inside components and keeps everything in place. Has aesthetic value as well.
159. Length: 340mm
160. Width: 63mm
161. Height: 124mm