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R100 Supplementary Information By Robert W. Meister WA1MIK

This is a collection of supplementary information for the R100 station. I recorded the voltages on my working station when other people were troubleshooting problems with their stations.

R100 Repeater Control Board GLN6815 Integrated Circuits List:

The "Marked" column indicates the part number stamped on the IC. The "Actual" column indicates a substitute that may be commercially available however there may be other ICs that have the same pin-out and functionality. "N/U" means Not Used. The R100 manual has a table of Vcc and Gnd pins on the first page of the control board schematic. Some don't use the standard pins. There is no U813 or U830.

U#	Description	Marked	Actual
800	Quad Op-amp	- - N/U - -	- - N/U - -
801	Quad Op-amp	LM2902	LM2902
802	Quad Op-amp	LM2902	LM2902
803	Audio Power Amp	LM380	LM380
804	Quad Nand Gate	- - N/U - -	- - N/U - -
805	Quad Nand Gate	- - N/U - -	- - N/U - -
806	Triple 3-Input Nand Gate	- - N/U - -	- - N/U - -
807	Quad Nand Gate	- - N/U - -	- - N/U - -
808	Quad Nand Gate	- - N/U - -	- - N/U - -
809	Quad Or Gate	MC14071	MC14071
810	Quad Nand Gate	- - N/U - -	- - N/U - -
811	Triple 3-Input And Gate	87K28	CD4073
812	Hex Inverter	87K01	CD4049
814	Schmitt Hex Inverter	04M21	CD40106
815	PLL	- - N/U - -	- - N/U - -
816	PLL	- - N/U - -	- - N/U - -
817	PLL	- - N/U - -	- - N/U - -
818	PLL	- - N/U - -	- - N/U - -
819	PLL	- - N/U - -	- - N/U - -
820	PLL	- - N/U - -	- - N/U - -
821	Quad Analog Switch	MC14016	MC14016
822	Quad Analog Switch	MC14016	MC14016
823	Quad Analog Switch	MC14016	MC14016
824	Quad Op-amp	LM2902	LM2902
825	Quad Nand Gate	MC14011	MC14011
826	Quad And Gate	MC14081	MC14081
827	Dual Timer	MC3456	MC3456
828	Triple 3-Input Or Gate	87K29	CD4075
829	Quad Nand Gate	MC14011	MC14011
831	Dual J-K Flip-Flop	- - N/U - -	- - N/U - -
832	Quad Nor Gate	MC14001	MC14001
833	Sync 4-Bit Counter	- - N/U - -	- - N/U - -
834	Dual Sw-Cap Filter	- - N/U - -	- - N/U - -
835	Dual Sw-Cap Filter	- - N/U - -	- - N/U - -
836	Triple 3-Input Nand Gate	- - N/U - -	- - N/U - -
837	Quad Op-amp	- - N/U - -	- - N/U - -
838	Quad Analog Switch	- - N/U - -	- - N/U - -
839	Dual Op-amp	RC4558	RC4558

R100 Repeater Control Board GLN6815 Electrolytic Capacitors List:

Some of the parts shown in the schematic and actually installed on the board are not listed in the parts lists.

All capacitors are radial leads unless marked otherwise.

C#	Value @ Voltage
800	100 @ 25
805	10 @ 33
811	100 @ 25
815	100 @ 25
816	Axial 1000 @ 16
818	4.7 @ 35
845	10 @ 33
892	10 @ 33
894	100 @ 25
899	100 @ 25
908	2.2 @ 50
915	10 @ 33
960	220 @ 32
961	220 @ 32
962	220 @ 32

Here's the list sorted by quantity and value. Capacitors with the same value but a higher voltage can always be substituted. 35V instead of 25, 32, or 33V is perfectly acceptable. 25 or 35V is fine for the 16V cap, but check the length; new caps are usually a lot smaller than ones made 20 years ago.

Qty	Value @ Voltage
1	2.2 @ 50
1	4.7 @ 35
1	Axial 1000 @ 16
3	220 @ 32
4	10 @ 33
5 *	100 @ 25

* Note: Add another 100uF 25V capacitor (C6) if your station has the QLN4314A Interface Board that mounts to the control board.

R100 25W UHF Repeater Battery Reverting Power Supply Regulator Board Voltages:

All voltages measured with a Fluke 189 DMM. The negative lead was attached to the negative terminal on the main power supply filter capacitors. Some of the voltages below may be different depending on what you've adjusted the A+ voltage to. The TX alignment section of the manual calls for 13.2V but the power supply theory section mentions 13.6-14.0V (nominal 13.8V). My supply was set for ~13.2V.

DC voltages on U52, the 14-pin IC, in RX mode.

Pin#	Voltage	Notes
1	0.11	High When Battery Voltage Low (Pin 2 < Pin 3)
2	8.65	Nearly ~8.9
3	6.86
4	12.50	Regulated 12V
5	8.87	Extremely Close To Pin 7
6	8.87	Same As Pin 7
7	8.87	Varies With Battery Charge Voltage And R70
8	0.11	High When Line Voltage < 50VAC (Pin 9 < Pin 10) (Activates Relay)
9	13.64	Nearly ~13.5
10	6.66
11	0.00	Ground
12	5.32	Nearly ~5.3
13	7.32
14	0.03	High When PS Voltage Too High (Pin 12 > Pin 13) (Activates Relay)

The station draws about 0.5A in RX mode from the external battery terminals with no AC connected.

DC voltages on 1/4 inch quick disconnect terminals, in RX and TX modes.

Term	RX	TX	Notes
J10	13.236	12.93	Regulated 13.2VDC From Series-Pass Transistors
J11A	13.223	12.92	Regulated 13.2VDC To PA
J12	13.196	13.23	External DC (Battery) Input

DC voltages on J2 that goes to the station's Tone Remote Control (TRC) board, in RX mode.

Pin#	Color	Voltage	Notes
1	BLACK	0.0	Ground
2	KEYWAY	- - -
3	GREEN	0.0	High When On Battery (Pulled High On TRC)
4	YELLOW	6.0	Low When Low Battery (Pulled High On TRC)
5	ORANGE	13.2	Regulated 13.2V

DC voltages on J1 that goes to the series-pass transistors, in RX mode.

Pin#	Color	Voltage	Notes
1	BLACK	0.0	Ground
2	KEYWAY	- - -
3	ORANGE	13.2	Current Sample
4	RED	13.1	Regulated 13.2VDC
5	BLACK	24.8	Unregulated DC Voltage Input
6	WHITE	13.8	Drive To Series-Pass Transistors

The green LED is lit when AC power is providing DC voltage to the regulator board. The red LED is lit when the relay is energized and external DC power is being used to provide DC voltage to the station.

If the relay actuates when AC power is present (both LEDs lit at the same time) and no external DC is available, U51 at the bottom of the board will get very hot as it tries to supply all the power to the station.

I measured the power supply voltage at the terminal feeding the RF Power Amplifier with varying amounts of load provided by an electronic dynamic load. I unplugged the 7-pin Molex connector at the repeater control board. Here are the results.

Amps	Volts
0	13.18
5	13.10
10	12.96
15	12.68
17	12.14

The supply went into current fold-back at 18A and provided 3.5A to the load at 0.9V. Once the load was removed, the supply recovered to 13.18V. The supply is rated for about 10-12 amps.

R100 25W UHF Repeater non-Battery Reverting Power Supply Regulator Board Voltages:

All voltages measured with a Fluke 189 DMM. The negative lead was attached to the chassis. Some of the voltages below may be different depending on what you've adjusted the A+ voltage to. The TX alignment section of the manual calls for 13.2V but the power supply theory section mentions 13.6-14.0V (nominal 13.8V). My supply was set for 13.68V and the line voltage was 119VAC. This power supply has horrible line regulation, meaning that if the AC line voltage varies, so does the DC output voltage. The DC output voltage dropped by 0.6 VDC for a 30 VAC input change.

These are the voltages on the six-pin connector on the regulator board, no input signal, station in standby, RPTR DIS and PL DIS switches activated.

Pin#	Color	VDC	VAC
1	No pin/wire	- - -	- - -
2	WHITE	0.00	0.00
3	TAN/BLUE	10.72	9.06
4	No pin/wire	- - -	- - -
5	RED	13.72	<1mV
6	YELLOW	13.74	<1mV
7	YELLOW/RED	14.35	<1mV
8	ORANGE	24.18	50mV

I also measured the load regulation: the output voltage dropped by 0.7 VDC with a 10A load applied.

R100 Repeater Control Board GLN6815A Connector Voltages:

This is with the station running on AC power, RPTR DISABLED, nothing else attached. This is the least-populated board without the tone remote components and no other board, connector, or cables are plugged into it.

P5 - RPTR TX: Pins 1, 2, and 3 are used for programming. Pins 4, 5, and 6 also go to P4 pins 4, 6, and 8 respectively.

Pin#	Voltage	Signal Name
1	3.64	Hub
2	3.56	PTT/Data In
3	8.71	Exciter Audio/Data Out
4	0.01	Gnd
5	6.15	F1/F2
6	13.12	+13.8v

P4 - BASE/RPTR RX: Pins 2, 4, and 7 are for programming. Pins 4, 6, and 8 also go to P5 pins 4, 5, and 6 respectively.

Pin#	Voltage	Signal Name
1	- - -	N/C
2	4.50	PTT/Data In
3	4.92	Detected Audio Out
4	0.01	Gnd
5	4.91	Rx Flat Audio
6	13.13	+13.8V
7	3.38	Hub
8	6.15	F1/F2
9	- - -	N/C
10	9.75	Exciter Audio
11	3.74	CSQ Indicator
12	- - -	N/C
13	0.01	PL Indicate
14	- - -	N/C
15	- - -	N/C

P7: DC Power input from power supply.

Pin#	Voltage	Signal Name
1	- - -	N/C
2	- - -	N/C
3	- - -	N/C
4	13.17	+13.8v
5	6.13	Low Battery
6	0.00	On Battery
7	0.00	Gnd

DC voltages on Q809 (the 9.6V regulator, the medium-sized power transistor standing vertical in the lower right quadrant of the RCB).

Terminal	Voltage
Top/Base	12.44
Middle/Collector	9.63
Bottom/Emitter	12.99

R100 Repeater Control Board GLN6815 Test Points:

Pg # is the schematic page number in the manual.

Some test points are not present on the circuit board X-ray view or the schematic.

TP#	Location	Pg#
0	Bottom Center	3
1	Bottom Left	2
2	Bottom Left	2
3	Bottom Center	3
4	Bottom Left	3
5		4
6	Middle Left	4
7	Top Left	4
8	Top Left	4
9
10	Top Center	4
11	Top Center	4
12
13	Top Center	4
14	Top Center	4
15
16	Top Center	4
17	Top Center	4
18
19	Top Right	4
20	Top Right	4
21
22	Top Right	4
23	Top Right	4
24
25	Middle Center	4
26	Bottom Center	4
27	Bottom Center	4
28	Middle Right
29		2
30	Middle Center	2
31	Bottom Center	3
32
33
34		2
35	Middle Right	5
36
37
38
39	Bottom Center
40	Middle Left	4

Contact Information:

The author can be contacted at: his-callsign [ at ] comcast [ dot ] net.

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This page created on Fri 06-Nov-2013

Article text, artistic layout, and hand-coded HTML © Copyright 2013 by Robert W. Meister WA1MIK.

This web page, this web site, the information presented in and on its pages and in these modifications and conversions is © Copyrighted 1995 and (date of last update) by Kevin Custer W3KKC and multiple originating authors. All Rights Reserved, including that of paper and web publication elsewhere.