Galaxy
DX Radios DX88HL
Documentation Project
CBTricks.com
Integrated
Circuits Voltage Chart
| ICl | SQ. & AGC Amp | IC5 | PLL Synth. | |
| 1 = NC | 8 = 7.04 Sq; 0.68 No Sq. | 1 = 8.02 | 7 = 1.60
to4.70, LOW to HIGH Band |
|
| 2 = NC | 9 = 2.26 | 2 = 3.90 | 8 = 7.96 | |
| 3 = NC | 11 = 0.00 | 3 = 4.18 | 9 = 0.00
Band A-D, 6.3V Band E-G |
|
| 4 = 8.40 | 12 = 0.30 | 4 = NC | 10 = 0.00 | |
| 5 = 0.00 | 13 = 0.30 | 5 = NC | 11-17 =
0.00 or 8.30; Depends on channel |
|
| 6 = 0.00 | 14 = 0.60 | 6 = NC | 18 = 0.00 | |
| 7 = 0.00 | 10 = 1.53-3.32 Tight Sq. | |||
| IC8 | Audio Power Amp | |||
| IC2 | FM Det. | 1 = 13.35 | 6 = 1.17 | |
| 1 = 1.30 FM | 5 = 3.20 FM | 2 = 6.60 | 7 = 0.00 | |
| 2 = 1.30 FM | 6 = 3.30 FM | 3 = 0.00 | 8 = 0.00 | |
| 3 = 7.30 FM | 7 = 4.43 FM | 4 = 0.00 | 9 = 6.63 | |
| 4 = 0.00 | 5 = 1.17 | 10 = 12.62 | ||
| IC3 | Balance Mod. | IC9 | TX Mixer | |
| 1 = 3.14 SSB TX | 5 = 6.19 SSB TX | 1 = 0.21 TX | 8 = 3.22TX | |
| 2 = 3.53 SSB TX | 6 = 7.70 SSB TX | 2 = 8.10 TX | 9 = 0.00 TX | |
| 3 = 3.53 SSB TX | 7 = 4.20 SSB TX | 3 = 8.10 TX | 10 = 1.39 TX | |
| 4 = 0.00 | 4 = 0.00 TX | 11 = 1.63 TX | ||
| 5 = 8.10 TX | 12 = 1.16 TX | |||
| IC4 | Mike Amp & T/R Sw. | 6 = 0.00 TX | 13 = 1.63 TX | |
| 1 = 4.50 TX | 5 = 4.48 RX; 2.25 TX | 7 = 3.22 | 14 = 0.00 | |
| 2 = 4.50 TX | 6 = 3.2 RX / TX | |||
| 3 = 4.50 TX | 7 = 7.30 RX; 2.68 TX | IC10 | PLL Mixer | |
| 4 = 0.00 | 8 = 8.17 TX | 1=2.71 | 6=5.43 | |
| 2=2.14 | 7=2.10 | |||
| 3=1.48 | 8=7.44 | |||
| 4=2.69 | 9=5.44 | |||
| 5 = 0.00 | ||||
Disclaimer: Although the greatest care has been taken while compiling these documents,
we cannot guarantee that the instructions will work on every radio presented.