Does anyone have schematics for a 500d? I'm looking for what transistors go in location Q225, Q226.
O Oldschoolaud Member Joined 2018 2018-05-01 4:17 am #1 2018-05-01 4:17 am #1 Does anyone have schematics for a 500d? I'm looking for what transistors go in location Q225, Q226. ••• More options Share P Perry Babin Member Joined 2003 bcae1.com 2018-05-01 11:21 am #2 2018-05-01 11:21 am #2 MPSW56 for both ••• More options Share P Perry Babin Member Joined 2003 bcae1.com 2018-05-01 1:18 pm #3 2018-05-01 1:18 pm #3 These amps have serious problems with the voltage regulators. Are there signs of heat stress around the regulator components? ••• More options Share O Oldschoolaud Member Joined 2018 2018-05-02 3:24 am #4 2018-05-02 3:24 am #4 There's been some heat around the 1620 and resistor next to it. It has also had to have part of the board cut out before I ever got it. The 2 resistors around C260. ••• More options Share P Perry Babin Member Joined 2003 bcae1.com 2018-05-02 7:51 am #5 2018-05-02 7:51 am #5 This is the area I was concerned about. Attachments IMG_2581x.jpg 221.6 KB · Views: 66 ••• More options Share O Oldschoolaud Member Joined 2018 2018-05-22 3:49 am #6 2018-05-22 3:49 am #6 Sorry for long delay. The left resistor has definitely been very hot. Both are reading 150 ohms. ••• More options Share Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link
P Perry Babin Member Joined 2003 bcae1.com 2018-05-01 11:21 am #2 2018-05-01 11:21 am #2 MPSW56 for both ••• More options Share P Perry Babin Member Joined 2003 bcae1.com 2018-05-01 1:18 pm #3 2018-05-01 1:18 pm #3 These amps have serious problems with the voltage regulators. Are there signs of heat stress around the regulator components? ••• More options Share O Oldschoolaud Member Joined 2018 2018-05-02 3:24 am #4 2018-05-02 3:24 am #4 There's been some heat around the 1620 and resistor next to it. It has also had to have part of the board cut out before I ever got it. The 2 resistors around C260. ••• More options Share P Perry Babin Member Joined 2003 bcae1.com 2018-05-02 7:51 am #5 2018-05-02 7:51 am #5 This is the area I was concerned about. Attachments IMG_2581x.jpg 221.6 KB · Views: 66 ••• More options Share O Oldschoolaud Member Joined 2018 2018-05-22 3:49 am #6 2018-05-22 3:49 am #6 Sorry for long delay. The left resistor has definitely been very hot. Both are reading 150 ohms. ••• More options Share Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link
P Perry Babin Member Joined 2003 bcae1.com 2018-05-01 1:18 pm #3 2018-05-01 1:18 pm #3 These amps have serious problems with the voltage regulators. Are there signs of heat stress around the regulator components? ••• More options Share O Oldschoolaud Member Joined 2018 2018-05-02 3:24 am #4 2018-05-02 3:24 am #4 There's been some heat around the 1620 and resistor next to it. It has also had to have part of the board cut out before I ever got it. The 2 resistors around C260. ••• More options Share P Perry Babin Member Joined 2003 bcae1.com 2018-05-02 7:51 am #5 2018-05-02 7:51 am #5 This is the area I was concerned about. Attachments IMG_2581x.jpg 221.6 KB · Views: 66 ••• More options Share O Oldschoolaud Member Joined 2018 2018-05-22 3:49 am #6 2018-05-22 3:49 am #6 Sorry for long delay. The left resistor has definitely been very hot. Both are reading 150 ohms. ••• More options Share Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link
These amps have serious problems with the voltage regulators. Are there signs of heat stress around the regulator components?
O Oldschoolaud Member Joined 2018 2018-05-02 3:24 am #4 2018-05-02 3:24 am #4 There's been some heat around the 1620 and resistor next to it. It has also had to have part of the board cut out before I ever got it. The 2 resistors around C260. ••• More options Share P Perry Babin Member Joined 2003 bcae1.com 2018-05-02 7:51 am #5 2018-05-02 7:51 am #5 This is the area I was concerned about. Attachments IMG_2581x.jpg 221.6 KB · Views: 66 ••• More options Share O Oldschoolaud Member Joined 2018 2018-05-22 3:49 am #6 2018-05-22 3:49 am #6 Sorry for long delay. The left resistor has definitely been very hot. Both are reading 150 ohms. ••• More options Share Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link
There's been some heat around the 1620 and resistor next to it. It has also had to have part of the board cut out before I ever got it. The 2 resistors around C260.
P Perry Babin Member Joined 2003 bcae1.com 2018-05-02 7:51 am #5 2018-05-02 7:51 am #5 This is the area I was concerned about. Attachments IMG_2581x.jpg 221.6 KB · Views: 66 ••• More options Share O Oldschoolaud Member Joined 2018 2018-05-22 3:49 am #6 2018-05-22 3:49 am #6 Sorry for long delay. The left resistor has definitely been very hot. Both are reading 150 ohms. ••• More options Share Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
O Oldschoolaud Member Joined 2018 2018-05-22 3:49 am #6 2018-05-22 3:49 am #6 Sorry for long delay. The left resistor has definitely been very hot. Both are reading 150 ohms. ••• More options Share